TPS2421-1DDAR

Name: TPS2421-1DDAR
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

8-Pin HSOIC EP Package

4,364 Effective Inventory

TPS2421-1DDAR

Effective Inventory4,364

8-Pin HSOIC EP Package

Manufacturer Part # : TPS2421-1DDAR
Package/Case: HSOIC (DDA)-8
Brand: Texas Instruments
Product Categories : Hot Swap Controllers
Series : TPS2421

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TPS2421-1DDAR DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$1.989	$1.99
10	$1.719	$17.19
30	$1.551	$46.53
100	$1.378	$137.80
500	$1.302	$651.00
1000	$1.268	$1,268.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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TPS2421-1DDAR Details

The TPS2421-1DDAR is a precision voltage-limiting circuit from Texas Instruments, designed for protection and control in various power management applications. This device offers overvoltage and undervoltage protection, as well as power sequencing and hot-swap control, making it ideal for critical power supply systems.

Pinout

1 (IN+): Positive Input Terminal
2 (IN-): Negative Input Terminal
3 (OUT+): Positive Output Terminal
4 (OUT-): Negative Output Terminal
5 (UVLO1): Undervoltage Lockout 1
6 (UVLO2): Undervoltage Lockout 2
7 (OVLO): Overvoltage Lockout
8 (RESET): Reset Output

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Voltage Limiting: Provides precision voltage-limiting functionality for robust power protection.
Power Sequencing: Enables controlled power-up and power-down sequencing for sensitive components.
Hot-Swap Control: Supports hot-plug and hot-swap applications, preventing damage to connected devices.
Adjustable Thresholds: Allows customization of overvoltage and undervoltage threshold levels for specific requirements.
Fault Reporting: Generates a reset signal in case of fault conditions, ensuring system safety and reliability.

Application

Power Supply Protection: Suitable for protecting sensitive components in power supply systems from overvoltage and undervoltage conditions.
Hot-Pluggable Systems: Ideal for hot-swappable systems where controlled power sequencing and protection are essential.
Industrial Control: Used in industrial control systems to ensure safe and reliable power distribution and management.

Where to Use

The TPS2421-1DDAR is suitable for applications requiring precise voltage-limiting, power sequencing, and hot-swap control. It is commonly used in power supply protection, hot-pluggable systems, and industrial control applications to prevent damage and ensure system integrity.

How to Use

Connect the TPS2421-1DDAR to your power management system, ensuring proper input and output terminal connections. Adjust the undervoltage and overvoltage thresholds as needed for your specific application. Utilize the sequencing and fault reporting features to ensure safe and reliable power operation. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the TPS2421-1DDAR demonstrates how to integrate the voltage-limiting circuit into your power management system. It includes connections for input, output, and control signals, ensuring proper protection and sequencing of power.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

TPS2423: A similar precision voltage-limiting circuit with additional features for specific requirements.
TPS2420: An alternative voltage-limiting circuit offering similar functionality and performance.

Complementary

The TPS2421-1DDAR can be complemented by the TPS2451, which offers advanced power management features such as load switching and fault protection, expanding the capability of the power management system.

When selecting complementary components, ensure their features and specifications align with your specific power management requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum overvoltage and undervoltage threshold range of the TPS2421-1DDAR?

A: The TPS2421-1DDAR allows adjustable overvoltage and undervoltage thresholds within specified limits. For more details, refer to the datasheet for specific threshold range and configurations.

Q: Can the TPS2421-1DDAR be used in automotive power systems?

A: Yes, the TPS2421-1DDAR is suitable for automotive power management applications, providing precise voltage limiting and protection in various automotive power systems.

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)	33
Vin (min) (V)	3	Vin (max) (V)	20
Vabsmax_cont (V)	25	Current limit (min) (A)	1.8
Current limit (max) (A)	5.5	Overcurrent response	Power limiting, current limiting
Fault response	Latch-off	Soft start	Adjustable
Features	Fault output, Power good signal	UL recognition	UL2367
Rating	Catalog	Device type	eFuses and hot swap controllers
Operating temperature range (°C)	-40 to 125	Function	Adjustable current limit, Current monitoring, Power good signal, Short circuit protection, Thermal shutdown

FAQs

What is TPS2421-1DDAR?

The TPS2421-1DDAR is a precision current-limiting power distribution switch designed by Texas Instruments. It is ideal for applications requiring protection against overcurrent events and the distribution of power to multiple loads, such as USB ports, industrial automation, and battery charging systems.

How Does TPS2421-1DDAR Work?

The TPS2421-1DDAR works by monitoring the current flowing through the power path and limiting it to a safe level in the event of an overcurrent condition. It features a fast response time to protect downstream components and allows for seamless power distribution to connected loads. The integrated circuit is designed to provide efficient and reliable power management in various applications.

How Many Pins does TPS2421-1DDAR have and What are the Functions of the Pinout Configuration?

The TPS2421-1DDAR is housed in a 6-pin SOT-23 (Small Outline Transistor) package. The pinout configuration includes:

IN: Power input pin.
EN: Enable control input pin.
GATE: Gate driver pin for external MOSFET connection.
OUT: Power output pin.
GND: Ground pin.
FLT: Fault flag indicator output pin.

What are the Pros and Cons of TPS2421-1DDAR?

Pros:

Overcurrent Protection: Provides precise current limiting to protect downstream components.
Low Power Dissipation: Minimizes power loss during normal operation.
Small Package: The SOT-23 package offers a space-efficient solution for compact designs.
Fast Response Time: Ensures quick detection and response to overcurrent events.

Cons:

External Component Required: May require an external MOSFET for power switching.
Limitation on Current Handling: Designed for specific current limit levels, may not be suitable for high-current applications.

Are There Any Equivalents/Alternatives to TPS2421-1DDAR for Recommendation?

The TPS2052B from Texas Instruments is a similar precision current-limiting power switch with additional features.
Alternatives to the TPS2421-1DDAR include the FPF2700 from ON Semiconductor and the LTC4412 from Analog Devices.