TPS25921LD

HOT SWAP CONTROLLER, SOIC-8, 18V
6,773 Effective Inventory

TPS25921LD

Effective Inventory6,773

HOT SWAP CONTROLLER, SOIC-8, 18V

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Service & Packaging

Service & Packaging

About After Sales Service

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Initiate the application within 90 days from the shipment date.

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TPS25921LD DataSheet
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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Rapid Quote

Please submit RFQ for TPS25921LD or email to us: Email: [email protected], we will contact you in 12 hours.

Details

The TPS25921LD is a sophisticated eFuse designed for high performance and versatile protection functions. With a wide operating voltage range, it is compatible with many popular DC buses, while its precise ±2% current limit ensures accurate control for various system protection applications. The eFuse features programmable overcurrent, overvoltage, and undervoltage protection, with a 3% threshold accuracy for tight supervision of bus voltages. Additionally, the fault flag output (FLT) provides system status monitoring and downstream load control. For hot-plug-in boards, the TPS25921LD offers in-rush current control and programmable output ramp-rate, providing maximum design flexibility with its soft-start (SS) pin for adjustable output ramp rate using a capacitor

Key Features

  • The power management IC has adjustable overcurrent protection
  • Reverse current blocking for safe operation and thermal shutdown
  • Low on-resistance of 6mOhm for efficient switching

Application

  • Essential for power systems
  • Ensures electronic safety
  • Protects against voltage spikes

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

FET Internal Ron (typ) (mΩ) 90
Vin (min) (V) 4.5 Vin (max) (V) 18
Vabsmax_cont (V) 20 Current limit (min) (A) 0.4
Current limit (max) (A) 1.6 Overcurrent response current limiting
Fault response Latch-off Soft start Adjustable
Overvoltage response Cut-off Features Fault output
UL recognition UL2367, UL60950 Rating Catalog
Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 85
Function Adjustable current limit, Inrush current control, Overvoltage protection, Short circuit protection, Thermal shutdown

Specification Comparison

TPS259240DRCT vs TPS25921AD vs TPS25921LD TPS259261DRCT vs TPS25921AD vs TPS25921LD

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification TPS25921LD PDF Download

FAQs

What is TPS25921LD?

The TPS25921LD is a precision adjustable overcurrent protection device designed by Texas Instruments. It is ideal for applications requiring power distribution and protection in systems with multiple loads, such as servers, storage systems, and industrial equipment.

How Does TPS25921LD Work?

The TPS25921LD works by monitoring the current flowing through the power path and protecting the system from overcurrent conditions. It features a precision current-sense amplifier and a programmable current threshold, allowing for accurate overcurrent detection and response. The device can quickly disconnect the load when an overcurrent condition is detected, providing robust protection for the system.

How Many Pins does TPS25921LD have and What are the Functions of the Pinout Configuration?

The TPS25921LD is housed in a 10-pin WSON (Wide SOIC-10) package. The pinout configuration includes:

  • IN, OUT: Power input and output pins.
  • GATE: Gate drive pin for connecting an external FET.
  • FAULT: Fault indicator output pin.
  • SENSE+, SENSE-: Current sense input pins.
  • EN, UVLO: Enable and undervoltage lockout control pins.
  • GND: Ground pin.
  • VCC: Power supply pin.

What are the Pros and Cons of TPS25921LD?

Pros:

  • Precision Protection: Offers precise overcurrent protection for systems with multiple loads.
  • Programmable Threshold: Allows flexibility in setting the current threshold for overcurrent detection.
  • Fast Response: Quickly disconnects the load upon overcurrent detection, minimizing potential damage.
  • Wide Operating Voltage Range: Supports a wide input voltage range, suitable for various power distribution applications.
  • Compact Package: The WSON package provides a space-efficient solution for compact designs.

Cons:

  • Complexity: Requires careful consideration of the current sensing and protection circuitry for optimal performance.
  • External Components: May require an external FET and other supporting components for complete overcurrent protection implementation.
  • Thermal Considerations: Heat dissipation and thermal management may need to be addressed, especially in high-power applications.

Are There Any Equivalents/Alternatives to TPS25921LD for Recommendation?

  • The TPS25923 from Texas Instruments is a similar precision adjustable overcurrent protection device with additional features.
  • Alternatives to the TPS25921LD include the NCP380 from ON Semiconductor and the LTC4364 from Analog Devices.

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