About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsIntegrated Circuits (ICs)PMIC - Hot Swap ControllersTPS2350PWR
TPS2350PWR Image
TPS2350PWR Image - 1TPS2350PWR Image - 2
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

TPS2350PWR - Texas Instruments

Manufacturer Part Number
TPS2350PWR
Manufacturer
Texas Instruments
Allelco Part Number
32D-TPS2350PWR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
12,705 pcs available, New & Original
Parts Description
IC HOT SWAP CTRLR -48V 14TSSOP
Package
14-TSSOP
Data sheet
TPS2350PWR.pdf

HTML Datasheet

TPS2350.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 12705
  • Unit Price: $2.148
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $2.148 $2.15
10+ $2.094 $20.94
30+ $2.058 $61.74
100+ $2.022 $202.20
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TPS2350PWR Tech Specifications
Texas Instruments - TPS2350PWR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS2350PWR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply -80V ~ -12V
Type Hot Swap Controller
Supplier Device Package 14-TSSOP
Series -
Programmable Features Current Limit, Fault Timeout, OVP, Slew Rate, UVLO
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Package Tape & Reel (TR)
Product Attribute Attribute Value
Operating Temperature -40°C ~ 85°C
Number of Channels 3
Mounting Type Surface Mount
Internal Switch(s) No
Features Auto Retry
Current - Output (Max) -
Base Product Number TPS2350
Applications -48V

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TPS2350PWR Image
TPS2350PWR (1)

Manufacturer Part Number

TPS2350PWR

Manufacturer

Texas Instruments

Introduction

The TPS2350PWR is a Hot Swap Controller designed for managing power distribution and inrush current in high-availability systems.

Product Features and Performance

Hot Swap Controller for power management

Supports 3 independent channels

Does not include an internal switch

Features Auto Retry for fault management

Programmable for Current Limit, Fault Timeout, Over Voltage Protection (OVP), Slew Rate, Under Voltage Lockout (UVLO)

Designed for use with -48V systems

Can operate with supply voltages from -80V to -12V

Product Advantages

Flexible programmability for various system requirements

Supports a wide range of supply voltages for diverse applications

High level of integration to minimize external component count

TPS2350PWR Image
TPS2350PWR (2)

Key Technical Parameters

Number of Channels: 3

Programmable Features: Current Limit, Fault Timeout, OVP, Slew Rate, UVLO

Voltage Supply: -80V ~ -12V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Auto Retry ensures fault recovery and system reliability

OVP and UVLO for protecting against voltage irregularities

Compatibility

Compatible with systems requiring -48V supply voltage

Mounts via Surface Mount technology

Application Areas

Telecom and Networking Equipment

Server and Storage Systems

High-Availability Industrial Applications

Product Lifecycle

Active status, with no current indication of discontinuation

Compatible replacements or upgrades may be offered

Several Key Reasons to Choose This Product

Texas Instruments, a trusted industry leader in Power Management ICs

High flexibility and programmability for system optimization

Wide operating temperature range suitable for harsh environments

Robust feature set for protection and safety of power systems

Suitable for high-availability and mission-critical applications

Frequently Asked Questions(FAQ)

What are the key design considerations when implementing a -48V hot swap controller using the TPS2350PWR in a telecom power shelf application, and how does its 3-channel architecture impact system redundancy?
The TPS2350PWR is optimized for -48V telecom environments where graceful insertion and removal of circuit boards is critical. Its three independent channels allow designers to support multiple powered cards with coordinated or independent control sequences. Each channel provides programmable current limiting (typically 0.5A to 10A range based on external sense resistor), which helps prevent bus voltage sag during inrush events. The auto-retry feature after fault recovery reduces maintenance requirements compared to manual reset systems. When designing with this device, engineers must ensure adequate PCB layout space for the 14-TSSOP package while maintaining Kelvin connections for accurate current sensing. The wide supply range (-80V to -12V) accommodates ring-battery and float-battery configurations common in legacy telecom equipment.
How does the slew rate programming capability of the TPS2350PWR influence thermal stress and component reliability compared to fixed slew controllers?
The TPS2350PWR's adjustable gate drive output enables precise control over MOSFET turn-on ramp time, allowing optimization between two competing objectives: minimizing peak inrush current and reducing electromagnetic interference (EMI). For example, setting a 10ms rise time might limit inrush to 2A with a 0.5Ω input capacitor ESR at -48V, whereas faster switching could exceed 5A depending on capacitance value. This programmability directly impacts component stress—slower slew rates reduce dv/dt across capacitive loads but increase conduction losses in the pass element during startup. In high-reliability applications like telecom shelves, this trade-off allows matching the controller response to specific load characteristics rather than using conservative default timings.
What are the limitations of the TPS2350PWR when handling mixed capacitive loads typical in modern server blades versus traditional resistive loads?
While the TPS2350PWR handles both capacitive and resistive loads effectively through its current-limited soft-start, large bulk capacitances (e.g., >470μF per channel) can challenge the fault timeout setting. If the load capacitance exceeds what the controller can charge within the programmed fault threshold window (typically 100ms–1s), it may trigger unintended fault shutdowns. For instance, charging 1000μF at 2A with a 0.5Ω equivalent series resistance requires approximately 2.5 seconds just for resistive losses alone. Engineers must calculate total energy storage and adjust either the current limit or timeout parameters accordingly. Additionally, distributed capacitance across multiple rails complicates single-controller management; hence multi-channel architectures help isolate rail-specific behaviors.
Compare the fault recovery behavior of the TPS2350PWR against simpler hot-swap controllers without auto-retry functionality.
Unlike basic hot-swap ICs that latch off permanently after an overload condition, the TPS2350PWR implements automatic retry logic that cycles the enable signal after a programmable delay following fault detection. This means if a temporary short resolves itself—such as a cold solder joint heating up and breaking contact—the system automatically resumes operation without manual intervention. However, this differs fundamentally from true hiccup-mode supplies that modulate duty cycle until fault conditions clear. The TPS2350PWR’s approach suits applications where immediate availability outweighs occasional nuisance tripping, such as carrier-grade infrastructure where downtime equals revenue loss. Designers should still implement external protection devices like fuses or PTCs as secondary safeguards.
What role does undervoltage lockout (UVLO) play in ensuring stable operation of the TPS2350PWR during brownout scenarios in -48V systems?
The UVLO circuitry prevents erroneous gate drive activation when the input voltage drops below safe operating thresholds, avoiding partial conduction that could cause excessive power dissipation or damage to downstream components. With a specified range down to -12V absolute minimum, the TPS2350PWR ensures reliable operation even when the -48V bus experiences significant sag due to heavy load transients or cable losses. During normal operation near -45V nominal, slight variations won’t affect function, but during brownouts approaching -20V, the UVLO keeps the FETs off until sufficient headroom returns. This avoids scenarios where a partially turned-on MOSFET acts as a variable resistor, dissipating hundreds of watts and potentially failing catastrophically.
How should overvoltage protection (OVP) be configured externally when using the TPS2350PWR with legacy -48V equipment prone to ringing transients?
Although the TPS2350PWR includes integrated OVP monitoring the input rail, external clamping circuits are often necessary for robust transient immunity. A Zener diode rated slightly above the maximum expected voltage (e.g., 56V bidirectional for -48V systems) connected between drain and source of the external N-channel MOSFET provides fast discharge paths for inductive kickback. Additionally, transient voltage suppressors (TVS diodes) placed close to connectors absorb surge energy before reaching sensitive circuitry. The internal OVP typically responds within microseconds, but combined with external elements, total protection spans nanoseconds to milliseconds—critical for surviving lightning-induced surges or relay bounce in aged installations.
What are the implications of operating the TPS2350PWR at elevated temperatures beyond room temperature in compact telecom enclosures?
The TPS2350PWR’s junction-to-ambient thermal resistance in typical PCB layouts exceeds 80°C/W due to limited copper area around the 14-TSSOP footprint. At 85°C ambient, continuous operation near full load may push die temperatures beyond specification limits unless airflow is carefully managed. In practice, most telecom designs operate well below peak ratings by leveraging moderate current margins and efficient heatsinking. However, in sealed cabinets without active cooling, even modest loads can accumulate thermal stress over time. Monitoring case temperature via thermal vias under the exposed pad becomes essential for long-term reliability assessments.
How does the absence of an internal switch in the TPS2350PWR affect MOSFET selection criteria compared to integrated solutions?
Since the TPS2350PWR only controls an external N-channel enhancement MOSFET, system efficiency depends entirely on the choice of pass transistor. Engineers must select MOSFETs with low RDS(on) (often <5mΩ for telecom applications) and sufficient SOA margin under worst-case fault conditions. Gate charge (Qg) directly affects drive timing and thus inrush performance—lower Qg enables faster switching but increases EMI risks. The lack of internal switch also eliminates shoot-through concerns but requires careful dead-time management if paralleling multiple channels. Overall, this architecture offers flexibility but demands rigorous validation of thermal and electrical interactions between controller and power stage.
What are the advantages of using the TPS2350PWR’s 3-channel configuration for redundant power delivery architectures?
Three independent channels allow staggered sequencing where one card powers up while others remain off, reducing simultaneous inrush currents on shared buses. This is particularly valuable in redundant systems where only one module needs active at any time during failover events. By assigning different fault timeout values per channel, operators can prioritize critical services—for example, giving primary routing cards more time to stabilize before enabling backup cards. The ability to monitor each channel separately via open-drain fault outputs enables centralized fault logging without complex multiplexing schemes.
How does the moisture sensitivity level (MSL) rating of MSL 1 for the TPS2350PWR simplify manufacturing processes compared to higher-risk components?
With an MSL rating of 1 (unlimited floor life), the TPS2350PWR does not require baking prior to soldering, streamlining production workflows especially in high-volume telecom manufacturing. This contrasts sharply with Class 2 or 3 components needing controlled storage and handling procedures. The absence of moisture-related delamination risks during reflow further reduces defect rates in automated assembly lines. Combined with RoHS3 compliance, this makes the TPS2350PWR suitable for global deployment without additional qualification overhead.
What precautions are necessary when interfacing the TPS2350PWR’s fault outputs with microcontroller interrupt pins in safety-critical systems?
The open-drain fault signals require pull-up resistors to ensure valid logic levels compatible with CMOS inputs. Typical values range from 1kΩ to 10kΩ depending on noise margins and response latency requirements. Long trace lengths between the IC and processor increase susceptibility to electromagnetic interference, potentially causing false triggers. Implementing Schmitt-trigger inputs on the MCU side helps filter glitches. Additionally, software debouncing algorithms should account for the inherent propagation delay (~100ns) plus any RC filtering introduced by parasitic capacitance along the line.
How do the programmable features of the TPS2350PWR compare to fixed-function hot-swap controllers in terms of design iteration speed?
Programmable current limit, slew rate, and fault timeout settings via external resistors offer significant flexibility during prototyping and field upgrades without hardware modifications. For example, adjusting the current limit from 2A to 5A simply changes the sense resistor value rather than replacing entire modules. In contrast, fixed implementations force complete redesigns for different loads. This adaptability accelerates time-to-market for diverse product lines sharing common platforms, though it introduces complexity in documentation and test procedures requiring verification across all valid parameter combinations.
What impact does the cut tape packaging variant have on automated component placement accuracy during high-speed assembly?
Cut tape format aligns naturally with pick-and-place machines designed for standard reels, minimizing setup changes between component types. The consistent tape pitch and leader/trailer structure ensure reliable feeding into feeders, reducing misfeeds compared to custom or loose-pack options. However, unlike full reels, cut tape contains fewer parts per unit length, increasing changeover frequency—a consideration for very high-volume runs. For the TPS2350PWR, this packaging supports seamless integration into existing telecom PCB assembly lines without retooling costs.
How should the TPS2350PWR be handled during storage to maintain long-term reliability given its lead-free construction?
As a RoHS3-compliant device, the TPS2350PWR uses SAC305 solder joints vulnerable to tin whisker growth under certain humidity conditions. Standard IPC/JEDEC J-STD-033 guidelines recommend storing in dry cabinets (<10% RH) for extended periods, although MSL 1 indicates no immediate risk during normal shelf life. Avoiding mechanical stress during handling preserves bond integrity, and electrostatic discharge (ESD) precautions remain critical due to the IC’s CMOS nature. Proper labeling with date codes ensures FIFO rotation within manufacturing facilities.
What are the trade-offs between using the TPS2350PWR in new designs versus retrofitting legacy telecom equipment with hot swap capabilities?
New designs benefit from full utilization of the TPS2350PWR’s advanced features like auto-retry and programmable timing, enabling optimized system-level reliability. Retrofits face constraints such as existing PCB real estate, connector compatibility, and inability to modify surrounding circuitry. For instance, adding the 14-TSSOP footprint might require redesigning the backplane interface. Nevertheless, retrofitting can dramatically improve service availability in aging infrastructure where downtime costs exceed upgrade expenses. Careful analysis of current paths and thermal budgets determines feasibility.
How does the EAR99 classification of the TPS2350PWR affect international sourcing logistics compared to controlled-export items?
EAR99 status simplifies export compliance paperwork since the device falls outside U.S. State Department jurisdiction, facilitating smoother distribution to most countries including those with strict import regulations. This contrasts with ECCN 3A001 or similar classifications requiring individual license approvals. Consequently, distributors like Digi-Key and TI’s own channels can fulfill orders globally without additional documentation, accelerating procurement cycles for multinational telecom operators deploying standardized platforms worldwide.
What strategies mitigate potential latch-up risks when driving the TPS2350PWR’s gate with long cables or high-inductance traces?
Latch-up in CMOS devices arises from parasitic thyristor structures activated by large di/dt events. Driving the gate with excessive inductance (e.g., long unshielded traces) can create voltage spikes exceeding VDD by several volts, triggering this condition. Minimizing loop area between driver and MOSFET, using ground planes adjacent to signal layers, and inserting small ferrite beads in series with the gate path attenuate ringing. Alternatively, placing a damping resistor (10–100Ω) near the IC output reduces overshoot without significantly slowing turn-on times.
How does the absence of a base product number suffix differentiation impact inventory management for the TPS2350PWR across different suppliers?
All variants of the TPS2350 share the same base number, meaning distributors list them identically regardless of packaging (cut tape vs reel) or minor manufacturing lot differences. This simplifies BOM creation but requires careful attention to packaging specifications during ordering—mixing CT and Digi-Reel forms may complicate automated placement programs. Suppliers generally maintain parity in pricing and availability, reducing cross-vendor negotiation complexity for procurement teams managing multi-source strategies.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS2350PWR

Product Attribute TPS2350PW TPS23523PWR TPS2350PWG4 TPS23525PWR
Part Number TPS2350PW TPS23523PWR TPS2350PWG4 TPS23525PWR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Type - - - -
Applications - - - -
Features - - - Simultaneous Sampling
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Supply - - - -
Programmable Features - - - -
Internal Switch(s) - - - -
Current - Output (Max) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Number of Channels - - - -

TPS2350PWR Datasheet PDF

Download TPS2350PWR pdf datasheets and Texas Instruments documentation for TPS2350PWR - Texas Instruments.

PCN Design/Specification
Copper Bond Wire Revision A 04/Dec/2013.pdf
PCN Packaging
Symbolization Update 28/Nov/2022.pdf
HTML Datasheet
TPS2350.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
TPS2350PWR Image

TPS2350PWR

Texas Instruments
32D-TPS2350PWR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB