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HomeProductsIntegrated Circuits (ICs)PMIC - Hot Swap ControllersTPS2350PW
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TPS2350PW - Texas Instruments

Manufacturer Part Number
TPS2350PW
Manufacturer
Texas Instruments
Allelco Part Number
32D-TPS2350PW
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
9,191 pcs available, New & Original
Parts Description
IC HOT SWAP CTRLR -48V 14TSSOP
Package
14-TSSOP
Data sheet
TPS2350PW.pdf

PCN Design/Specification

Cylindrical Battery Holders.pdf

HTML Datasheet

TPS2350.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 9191
  • Unit Price: $2.064
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.064 $2.06
200+ $0.799 $159.80
500+ $0.771 $385.50
1000+ $0.757 $757.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TPS2350PW Tech Specifications
Texas Instruments - TPS2350PW technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS2350PW

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 Tube
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

TPS2350PW Image
TPS2350PW (1)

Manufacturer Part Number

TPS2350PW

Manufacturer

Texas Instruments

Introduction

The TPS2350PW is a power management integrated circuit specialized for hot swap control in systems operating at -48V.

Product Features and Performance

Hot Swap Controller

Three independent channels

No internal switches

Auto-retry feature

Supports programmable functions such as Current Limit and Fault Timeout

Over Voltage Protection (OVP)

Under Voltage Lockout (UVLO)

Adjustable Slew Rate

Product Advantages

Enhanced system safety for -48V applications

Provides precise current regulation

Enables safe board insertion and removal from live systems

Reduces the need for external components

Key Technical Parameters

Series: TPS2350

Voltage - Supply Range: -80V to -12V

Operating Temperature Range: -40°C to 85°C

Mounting Type: Surface Mount

Package / Case: 14-TSSOP

Quality and Safety Features

Built-in Over Voltage Protection (OVP)

Under Voltage Lockout (UVLO) for system stability

Complies with industry quality and safety standards

Compatibility

Designed for -48V systems

Compatible with surface mount technology for PCB integration

Application Areas

Telecommunications equipment

Server and network infrastructure

Industrial applications requiring -48V rails

Product Lifecycle

Product Status: Active

Not indicated as nearing discontinuation

Availability of replacements or upgrades are typically provided by manufacturer

Several Key Reasons to Choose This Product

Reliable operation in -48V systems

Reduces complexity by integrating multiple functions

Builds on Texas Instruments' reputation for quality and durability

Supports system scalability through independent channel control

Helps to protect against system damage due to overcurrent events

Frequently Asked Questions(FAQ)

How does the TPS2350PW handle fault recovery in a -48V telecommunications power system, and what role does its Auto Retry feature play?
The TPS2350PW incorporates an Auto Retry mechanism that automatically attempts to re-enable the load after detecting a fault condition such as overcurrent or overtemperature. In a -48V telecom environment where continuous uptime is critical, this feature reduces manual intervention by cycling the power through programmable retry delays. The controller monitors fault signals via the FAULT pin and uses internal timing circuitry to determine when to reset the gate drive, allowing transient issues like inrush current surges to resolve before reattempting connection.
What are the key differences between using the TPS2350PW with external pass transistors versus integrated switch solutions in terms of thermal performance and current handling?
Since the TPS2350PW lacks an internal power switch, it requires discrete MOSFETs for current delivery, offering greater flexibility in voltage and current ratings compared to monolithic hot-swap ICs with built-in FETs. This external approach allows designers to select MOSFETs optimized for specific thermal resistance and conduction losses, enabling higher total output currents than would be feasible in a compact package. However, it introduces additional layout complexity and potential for mismatch in gate drive characteristics, requiring careful PCB routing and heatsinking to maintain efficiency at high loads.
Can the TPS2350PW be used in redundant power architectures without additional control logic, and how does its three-channel design support such applications?
Yes, the TPS2350PW’s three independent channels allow simultaneous management of multiple power rails within a redundant system, such as dual -48V feeds in a base station. Each channel can have distinct slew rates, current limits, and fault responses, enabling staggered turn-on sequences that minimize inrush current across the entire system. While the device itself doesn’t coordinate inter-channel sequencing, its individual programmability supports failover scenarios where one channel takes precedence based on local conditions.
How does the UVLO threshold interact with the -80V to -12V supply range during brownout events, and what impact does this have on system reliability?
The TPS2350PW features undervoltage lockout (UVLO) protection that disables the hot-swap function when the input voltage drops below a minimum threshold typically around -7.5V to -9V, depending on the specific variant. During a brownout, this prevents unreliable operation by ensuring sufficient headroom for proper gate driving and fault detection. However, in systems with tightly regulated -48V supplies, even small voltage dips could trigger UVLO, potentially causing unnecessary shutdowns unless compensated by margin design or external hysteresis circuits.
What considerations apply when selecting external gate drivers or MOSFETs to match the TPS2350PW’s control capabilities in high-capacitance telecom loads?
When driving large capacitive loads typical in telecom backplanes, the TPS2350PW’s adjustable slew rate must be balanced against MOSFET selection and gate driver strength. Excessively fast slew rates increase inrush current beyond acceptable levels, while too slow a ramp prolongs turn-on time unnecessarily. Designers should choose MOSFETs with low gate charge (Qg) and pair them with appropriate pull-up resistors or external drivers to ensure clean switching without ringing. The device’s open-drain FAULT output also requires buffering if long traces feed back to a microcontroller.
Does the TPS2350PW support hot-plugging in live systems, and how do its fault timeout and current limit features prevent catastrophic failures?
Yes, the TPS2350PW enables safe hot-plugging by controlling MOSFET turn-on through programmable slew rate and current-limiting thresholds. If the load draws more than the set current limit during insertion, the controller reduces gate drive until compliance is met, then resumes ramping. Simultaneously, the fault timeout prevents indefinite conduction under sustained overload by tripping the FET after a user-defined period—typically tens to hundreds of milliseconds. This dual protection ensures that shorts or excessive capacitive loads do not cause thermal runaway or damage to the host board.
How does operating temperature affect the accuracy of current sensing and timing functions in the TPS2350PW, particularly near 85°C?
Operating at elevated temperatures, especially approaching 85°C, can introduce minor shifts in comparator thresholds and RC timing components due to semiconductor parameter drift. While the TPS2350PW is specified over -40°C to +85°C, designers should account for potential increases in leakage current and reduced gate drive strength when implementing precision timing or tight current limits. For applications requiring high accuracy, external compensation networks or temperature-stabilized components may be necessary to maintain consistent fault response across full operating range.
Can the TPS2350PW operate reliably from a wide input range spanning -80V down to -12V, and what precautions are needed for reverse polarity protection?
Yes, the TPS2350PW is designed to operate across the full -80V to -12V input range, making it suitable for legacy and modern telecom environments. However, reverse polarity events must be handled externally since the device does not include intrinsic protection. Adding series diodes or MOSFET-based clamps is essential to prevent damage when incorrect cabling occurs, especially given the risk of inductive kickback in long cable runs common in industrial settings.
What is the significance of the 14-TSSOP package in space-constrained designs, and how does it compare to alternatives like SOIC or QFN?
The 14-pin TSSOP package offers a balance between pin count and footprint area, fitting many control functions without excessive board real estate. Compared to larger SOIC packages, it saves space but provides fewer pins; relative to QFNs, it avoids soldering challenges associated with exposed pads. For the TPS2350PW, the TSSOP form factor accommodates all necessary signal lines—including ISNS, GATE, FLT—while remaining compatible with standard reflow profiles, which simplifies integration into high-density telecom cards.
How do the programmable OVPs and fault timeout settings influence system-level diagnostics in a distributed -48V network using multiple TPS2350PW units?
The overvoltage protection (OVP) threshold and fault timeout parameters allow each TPS2350PW channel to respond uniquely to localized anomalies, aiding isolation of faults in complex networks. By tailoring these values per port, engineers can distinguish between transient spikes and persistent failures, reducing false alarms during normal operation. Combined with the FAULT output, this enables centralized monitoring systems to log precise failure modes without requiring identical configurations across all modules.
Is it possible to cascade multiple TPS2350PW devices for higher channel counts, and what synchronization challenges arise?
Cascading TPS2350PW units is technically feasible but not recommended due to lack of master-slave coordination and potential race conditions during startup. Each device operates independently, so enabling one channel before another could create unequal current sharing or voltage imbalances in shared bus architectures. Instead, designers should use multiple instances with staggered enable signals or opt for integrated multi-channel controllers that offer built-in sequencing and status reporting.
What role does the MSL rating of 1 play in assembly reliability, and how should storage conditions affect procurement planning for the TPS2350PW?
With an Moisture Sensitivity Level (MSL) of 1, the TPS2350PW has unlimited shelf life and no special dry-pack requirements, simplifying inventory management and reducing obsolescence risks. This makes it ideal for long-lifecycle telecom equipment where parts may sit on shelves for years before deployment. Procurement teams can safely stockpile tubes without humidity-controlled environments, lowering logistics overhead while maintaining readiness for production ramps.
How does the absence of an internal switch affect PCB layout decisions when implementing the TPS2350PW in a high-reliability telecom chassis?
Without an integrated switch, the TPS2350PW necessitates careful placement of external MOSFETs close to the controller to minimize parasitic inductance in the gate and source paths. This reduces ringing and improves switching stability, especially important in -48V systems where large energy storage capacitors create high di/dt transients. Proper grounding and decoupling near the GATE pin further ensure reliable operation under dynamic loads typical in active network elements.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS2350PW

Product Attribute TPS2350PWG4 TPS2350PWR TPS23523PWR TPS23521PWT
Part Number TPS2350PWG4 TPS2350PWR TPS23523PWR TPS23521PWT
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Current - Output (Max) - - - -
Number of Channels - - - -
Applications - - - -
Type - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Series - - - -
Internal Switch(s) - - - -
Programmable Features - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Features - - - Simultaneous Sampling
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)

TPS2350PW Datasheet PDF

Download TPS2350PW pdf datasheets and Texas Instruments documentation for TPS2350PW - Texas Instruments.

PCN Design/Specification
Cylindrical Battery Holders.pdf
HTML Datasheet
TPS2350.pdf
PCN Packaging
Symbolization Update 28/Nov/2022.pdf

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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.

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Brazil 7
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New Zealand 5
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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:
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TPS2350PW Image

TPS2350PW

Texas Instruments
32D-TPS2350PW

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

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