Please refer to the English Version as our Official Version.

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)~~

Home Products Integrated Circuits (ICs)PMIC - Supervisors~~LTC2908CDDB-B1#TRPBF~~

Image may be representation.
See specifications for product details.

~~Favorite~~

EXPRESS OPTION

Payment method

LTC2908CDDB-B1#TRPBF - Analog Devices Inc.

Name: Analog Devices Inc. LTC2908CDDB-B1#TRPBF
Brand: Analog Devices Inc.
SKU: LTC2908CDDB-B1#TRPBF
Price: 1.216 USD
Availability: InStock
Rating: 5 (4 reviews)

Manufacturer Part Number: LTC2908CDDB-B1#TRPBF

Manufacturer: Analog Devices, Inc.

Allelco Part Number: 32D-LTC2908CDDB-B1#TRPBF

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 6,400 pcs available, New & Original

Parts Description: IC SUPERVISOR 6 CHANNEL 8DFN

Package: 8-DFN (3x2)

Data sheet: LTC2908CDDB-B1#.pdf

Datasheets
Cylindrical Battery Holders.pdf

Environmental Information
Material Declaration LTC2908CDDB-B1#TRPBF.pdf

Other Related Documents
Tape and Reel Packaging.pdf

RoHs Status: ROHS3 Compliant

~~Compare~~

Our certification

In stock: 6400

Unit Price: $1.825
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+	$1.825	$1.83
10+	$1.591	$15.91
30+	$1.451	$43.53
100+	$1.31	$131.00
500+	$1.245	$622.50
1000+	$1.216	$1,216.00

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

LTC2908CDDB-B1#TRPBF Tech Specifications
Analog Devices Inc. - LTC2908CDDB-B1#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LTC2908CDDB-B1#TRPBF

Product Attribute	Attribute Value
Manufacturer	Analog Devices, Inc.
Voltage - Threshold	1.403V, 1.683V, 2.338V, 3.086V, Adj, Adj
Type	Multi-Voltage Supervisor
Supplier Device Package	8-DFN (3x2)
Series	-
Reset Timeout	160ms Minimum
Reset	Active Low

Product Attribute	Attribute Value
Package / Case	8-WFDFN Exposed Pad
Package	Tape & Reel (TR)
Output	Open Drain or Open Collector
Operating Temperature	0°C ~ 70°C (TA)
Number of Voltages Monitored	6
Mounting Type	Surface Mount
Base Product Number	LTC2908

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

LTC2908CDDB-B1#TRPBF (1)

Manufacturer Part Number

LTC2908CDDB-B1#TRPBF

Manufacturer

Analog Devices

Introduction

The LTC2908CDDB-B1#TRPBF is a multi-voltage supervisor from Analog Devices that continuously monitors up to 6 different voltage inputs and provides an active low reset signal when any of the monitored voltages fall outside of their user-set thresholds. It offers a wide range of voltage thresholds and flexible reset timing, making it suitable for a variety of power supply monitoring applications.

Product Features and Performance

Monitors up to 6 different voltage inputs

Adjustable voltage thresholds for each channel

Active low reset signal when any voltage falls out of range

Minimum reset timeout of 160ms

Wide operating temperature range of 0°C to 70°C

Product Advantages

Comprehensive multi-channel voltage monitoring

Flexible threshold settings for each voltage input

Reliable reset signaling to ensure system stability

Robust operating temperature range

Key Reasons to Choose This Product

Comprehensive power supply supervision in a compact package

Customizable voltage thresholds to meet specific system requirements

Ensures reliable system operation by providing timely reset signals

Trusted Analog Devices quality and performance

Quality and Safety Features

Manufactured by Analog Devices, a leader in power management ICs

Meets industry-standard quality and safety requirements

Compatibility

The LTC2908CDDB-B1#TRPBF is a surface mount device that can be easily integrated into a wide range of electronic systems and applications.

Application Areas

Motherboards and system boards

Industrial equipment

Medical devices

Telecommunications equipment

Automotive electronics

Product Lifecycle

The LTC2908CDDB-B1#TRPBF is an active product in Analog Devices' portfolio. There are no known equivalent or alternative models available at this time. If you have any questions or require further information, please contact our sales team through our website.

Frequently Asked Questions(FAQ)

What are the key differences between the LTC2908CDDB-B1#TRPBF and its substitute variant LTC2908CDDB-B1#TRMPBF in terms of package reliability and manufacturing traceability?: The LTC2908CDDB-B1#TRPBF and its substitute LTC2908CDDB-B1#TRMPBF share identical electrical characteristics and pin configuration, but differ in packaging and supply chain handling. The "#TRPBF" suffix indicates tape-and-reel packaging with a protective barrier film, suitable for automated high-volume assembly. In contrast, the "#TRMPBF" variant may imply a different reel material or moisture barrier specification, potentially affecting long-term storage stability under elevated humidity. While both meet MSL 1 requirements and are RoHS3 compliant, designers should verify packaging details from the latest manufacturer documentation when selecting for mission-critical applications where packaging integrity impacts solder joint reliability.

How does the LTC2908CDDB-B1#TRPBF handle voltage threshold accuracy across its six monitoring channels under typical industrial temperature conditions?: The LTC2908CDDB-B1#TRPBF provides fixed precision thresholds at 1.403V, 1.683V, 2.338V, and 3.086V, with two user-programmable channels via an external resistor network. These analog comparators exhibit typical threshold accuracies within ±2% over the -40°C to +85°C range, though the specified operating temperature here is 0°C to 70°C. At room temperature (25°C), threshold drift is negligible due to internal bandgap reference stability. For designs requiring tighter regulation, the analog inputs must be buffered externally to minimize offset errors introduced by loading or noise coupling, especially when monitoring low-impedance power rails.

Can the LTC2908CDDB-B1#TRPBF monitor negative supply voltages or bidirectional rails without additional circuitry?: No, the LTC2908CDDB-B1#TRPBF is designed exclusively for unidirectional positive voltage monitoring. Each channel accepts input voltages relative to GND up to the absolute maximum rating of V+ + 0.3V. Attempting to apply negative voltages directly will violate device specifications and risk permanent damage. To monitor negative supplies or bidirectional rails, external level-shifting circuitry such as resistive dividers, operational amplifiers, or dedicated voltage translators must be implemented. Careful consideration of common-mode input range and output drive capability is essential when interfacing non-standard supply networks.

What is the minimum reset timeout duration provided by the LTC2908CDDB-B1#TRPBF after a power-up event?: The LTC2908CDDB-B1#TRPBF guarantees a minimum reset timeout of 160ms following any valid transition across all monitored thresholds. This ensures that downstream microcontrollers or FPGAs experience a stable reset pulse sufficient for initialization routines. During power sequencing, if multiple rails ramp asymmetrically, the device evaluates each channel independently and asserts reset until all programmed conditions are met. However, the 160ms delay applies per-channel; the overall system reset duration depends on the slowest-responding rail. Designers should ensure their SoC’s minimum reset assertion requirement does not exceed this margin.

How do the open-drain outputs of the LTC2908CDDB-B1#TRPBF interface with 3.3V logic systems without level shifting?: The LTC2908CDDB-B1#TRPBF outputs are compatible with 3.3V logic directly due to its open-drain architecture. When pulled high via a 10kΩ resistor to 3.3V, the output presents a low impedance path to ground upon assertion, generating a clean active-low signal referenced to the same 3.3V domain. Since no internal pull-up exists, an external resistor is mandatory—typically 4.7kΩ to 10kΩ—depending on noise margins and rise time requirements. The output can sink up to 20mA, allowing reliable switching of TTL-compatible inputs even in noisy environments. Direct connection to 5V logic requires caution unless the target input tolerates 5V levels.

What design considerations are necessary when using more than four monitored voltages with the LTC2908CDDB-B1#TRPBF?: The LTC2908CDDB-B1#TRPBF supports six independent monitoring channels, making it suitable for complex multi-rail systems such as server motherboards or communication infrastructure. When utilizing all six channels, attention must be paid to input leakage current (typically <1µA) and shared reference noise. Since two channels use adjustable thresholds via external resistors, layout symmetry around the V+ pin minimizes crosstalk. Additionally, decoupling capacitors near each monitored rail reduce transient-induced false resets. Thermal management is minimal due to low quiescent current (<50µA), but PCB routing should isolate sensitive analog traces from digital aggressors to preserve threshold accuracy.

How does the LTC2908CDDB-B1#TRPBF compare to discrete supervisor ICs in cost and footprint for space-constrained designs?: Compared to discrete solutions built from simple comparators and RC timers, the LTC2908CDDB-B1#TRPBF reduces component count significantly—eliminating multiple resistors, capacitors, and diodes—while delivering integrated precision and programmability. In an 8-DFN (3x2mm) package, it occupies less than half the board area of equivalent discrete implementations. Although unit cost increases slightly, savings arise from reduced BOM complexity, faster bring-up, and improved reliability. For designs requiring only one or two monitored rails, discrete alternatives may be preferable; however, for six-rail systems, the integration benefits strongly favor the LTC2908CDDB-B1#TRPBF despite marginally higher NRE costs.

What precautions should be taken during PCB assembly when soldering the LTC2908CDDB-B1#TRPBF?: As an MSL 1 device, the LTC2908CDDB-B1#TRPBF can be stored indefinitely at dry conditions without baking prior to reflow. However, during wave soldering or manual rework, thermal profiles must adhere to JEDEC standards to prevent delamination of the exposed pad. The 8-WFDFN package features an exposed thermal pad connected internally to ground, which must be properly soldered and thermally anchored to enhance heat dissipation and mechanical stability. Avoid excessive peak temperatures (>260°C) or prolonged dwell times (>10 seconds) above 200°C. Use of lead-free solder paste and nitrogen reflow atmosphere further improves joint quality and void formation control.

Can the LTC2908CDDB-B1#TRPBF detect brownout events on dynamically changing power rails without oscillation?: Yes, the LTC2908CDDB-B1#TRPBF includes built-in hysteresis through its internal comparator design, which prevents chatter during marginal voltage dips. Each channel compares the monitored voltage against its threshold with a small internal offset that activates reset once crossed downward and deactivates only after exceeding the threshold again. This ensures clean transitions even on noisy or slowly decaying rails such as battery-powered subsystems. The propagation delay is typically <1µs, enabling timely detection of fast transients. Nevertheless, external filtering—such as a 100nF capacitor to ground at each input—can suppress high-frequency glitches without significantly delaying response to legitimate brownouts.

Is it possible to cascade multiple LTC2908CDDB-B1#TRPBF devices to expand monitoring capacity beyond six channels?: While technically feasible, cascading LTC2908CDDB-B1#TRPBF units is generally discouraged due to increased complexity and timing misalignment. Each device operates autonomously with independent thresholds and reset logic, so coordination between them requires careful firmware intervention to avoid race conditions during power-up or fault recovery. Moreover, the cumulative reset timeout could extend unpredictably if multiple devices assert simultaneously. For scalable systems, consider using a single device with all six channels configured appropriately rather than replicating hardware. If expansion is unavoidable, ensure clock synchronization and implement a centralized fault handler to maintain deterministic behavior.

How does the adjustable threshold feature work on the LTC2908CDDB-B1#TRPBF, and what resistor values yield precise control?: Two channels of the LTC2908CDDB-B1#TRPBF offer adjustable thresholds set by an external resistor divider between the monitored rail and the ADJ pin. The formula approximates VTH = 1.2V × (1 + R1/R2), where R1 connects from the rail to ADJ, and R2 connects from ADJ to GND. For example, choosing R2 = 10kΩ and R1 = 15kΩ yields VTH ≈ 1.2V × (1 + 1.5) = 3.0V. Resistor tolerance directly affects threshold accuracy—use 1% metal-film resistors for sub-2% precision. Parasitic capacitance on the ADJ node should be minimized, and Kelvin connections recommended if monitoring high-impedance rails. Calibration may be needed in production environments due to component tolerances.

What are the implications of using the LTC2908CDDB-B1#TRPBF in automotive versus industrial environments regarding temperature and EMI?: Although the LTC2908CDDB-B1#TRPBF is rated for 0°C to 70°C, its semiconductor process offers inherent robustness to electromagnetic interference (EMI) and voltage transients common in industrial settings. Automotive-grade equivalents typically require AEC-Q100 qualification, which is not indicated here. Therefore, deploying the LTC2908CDDB-B1#TRPBF in harsh environments demands external protection: TVS diodes on all I/O lines, ferrite beads on power supplies, and shielding for sensitive traces. Without such mitigation, radiated or conducted noise could trigger spurious resets or compromise threshold accuracy over extended operation.

How does the LTC2908CDDB-B1#TRPBF respond when one monitored voltage exceeds its threshold while others remain nominal?: Upon detection of any threshold violation—regardless of channel—the LTC2908CDDB-B1#TRPBF immediately asserts its active-low reset output. It does not prioritize channels or delay based on severity. All outputs remain asserted until every monitored voltage regains compliance above its respective threshold. This global reset ensures system-wide safe state entry during partial power failures. Firmware must therefore be capable of handling full processor resets even when only one rail fails, reinforcing the importance of comprehensive fault containment strategies in safety-critical designs.

What is the role of the exposed pad in the 8-DFN package of the LTC2908CDDB-B1#TRPBF?: The exposed pad in the 8-DFN (3x2) package serves dual purposes: electrical grounding and thermal enhancement. Internally bonded to the die’s substrate, it provides a low-impedance return path for analog signals and reduces ground bounce. Externally, it acts as a heat spreader, improving junction-to-ambient thermal resistance by approximately 30% compared to non-exposed packages. Proper soldering—achieved by applying solder paste and reflowing with adequate wetting—ensures optimal performance and mechanical adhesion. Leaving it floating risks undefined behavior and poor thermal coupling, while improper attachment can create voids leading to localized hot spots.

How does the LTC2908CDDB-B1#TRPBF compare to newer generations like the LTC2907 in terms of programmability and scalability?: The LTC2908CDDB-B1#TRPBF differs significantly from later parts such as the LTC2907, which introduces digital I²C configuration and EEPROM storage of thresholds. Unlike the LTC2908’s analog-only adjustability, the LTC2907 allows real-time reprogramming without hardware changes, supporting dynamic voltage scaling in adaptive power systems. The LTC2908 remains advantageous where simplicity, low latency, and absence of serial interface overhead are priorities. Selection hinges on whether future flexibility outweighs current cost and complexity trade-offs—particularly in fixed-function designs where threshold stability and immunity to EEPROM aging are critical.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LTC2908CDDB-B1#TRPBF

Product Attribute
Part Number	LTC2908CDDB-B1#TRMPBF	LTC2908CDDB-C1#TRPBF	LTC2908CDDB-C1#TRMPBF	LTC2908CDDB-A1#TRMPBF
Manufacturer	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Reset	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Voltage - Threshold	-	-	-	-
Output	-	-	-	-
Reset Timeout	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Series	-	-	-	-
Number of Voltages Monitored	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Type	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)

LTC2908CDDB-B1#TRPBF Datasheet PDF

Download LTC2908CDDB-B1#TRPBF pdf datasheets and Analog Devices Inc. documentation for LTC2908CDDB-B1#TRPBF - Analog Devices Inc..

Datasheets: Cylindrical Battery Holders.pdf
Environmental Information: Material Declaration LTC2908CDDB-B1#TRPBF.pdf
Other Related Documents: Tape and Reel Packaging.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Circ***FixerTom

Sep 2, 2026

Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.
Retr***UWorks

Aug 31, 2026

Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.
Andr***PCBLab

Aug 28, 2026

I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.
Leat***O'Keefe

Aug 20, 2026

one of my hobbies is skydiving. and when i'm skydiving this works great.
Ilen***

Aug 20, 2026

This product works considerably well. It secretly improves my basketball by a lot.
Indu***ialPower

Aug 17, 2026

Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.
Nikh***ech

Aug 13, 2026

Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.
Embe***dMotion

Aug 5, 2026

Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.
FPGA***dio

Jul 30, 2026

This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.
Nord***mbedded

Jul 20, 2026

Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

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

Use your express account for shipment if you have one.
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

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
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
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	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.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

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.

Phone: +00852 9146 4856
Email: info@allelco.com

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