TPS2421-2DDAR

Name: TPS2421-2DDAR
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

Hot Swap Controller for Positive Voltage with N-Channel 20V Capability in 8-Pin Package

4,012 Effective Inventory

TPS2421-2DDAR

Effective Inventory4,012

Hot Swap Controller for Positive Voltage with N-Channel 20V Capability in 8-Pin Package

Manufacturer Part # : TPS2421-2DDAR
Package/Case: HSOIC-8
Brand: Texas Instruments
Product Categories : Hot Swap Controllers
Series : TPS2421

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TPS2421-2DDAR DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$1.553	$1.55
10	$1.234	$12.34
30	$1.035	$31.05
100	$0.831	$83.10
500	$0.739	$369.50
1000	$0.699	$699.00

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

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TPS2421-2DDAR Details

The TPS2421-2DDAR is a dual-channel power distribution switch from Texas Instruments, designed for power management and protection in electronic systems. This switch features two independent channels with adjustable current-limit protection, making it ideal for applications requiring controlled power distribution and load protection. It offers low on-state resistance and thermal shutdown protection for reliable operation.

Pinout

1 (IN1): Input for Channel 1
2 (EN1): Enable for Channel 1
3 (OUT1): Output for Channel 1
4 (GND): Ground
5 (OUT2): Output for Channel 2
6 (EN2): Enable for Channel 2
7 (IN2): Input for Channel 2
8 (VIN): Power Input

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

Key Features

Dual-Channel Design: Provides two independent power channels for versatile power distribution.
Adjustable Current Limit: Allows customization of current-limit protection for each channel.
Low On-State Resistance: Ensures minimal voltage drop and power loss.
Thermal Shutdown: Protects the device from overheating during high-load conditions.
Overcurrent Protection: Safeguards connected loads from excessive current flow.

Application

Embedded Systems: Suitable for power management in embedded systems and microcontroller-based applications.
Industrial Control: Used in industrial control systems for reliable power distribution and load protection.
Automotive Electronics: Ideal for automotive electronics applications requiring controlled power switching.

How to Use

Connect the TPS2421-2DDAR to your power supply and loads by wiring the input and output pins accordingly. Enable each channel as needed and set the desired current limit for individual protection. Ensure proper thermal management and adhere to the device's operating conditions for optimal performance. Refer to the datasheet for detailed usage instructions.

Application Circuit

The application circuit diagram for the TPS2421-2DDAR illustrates how to integrate the power distribution switch into your system. It showcases connections for power input, outputs, and control signals, ensuring safe and efficient power delivery.

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

Equivalents

TPS2065DGN: A similar dual-channel power switch offering comparable features and performance.
TPS22917D: An alternative dual-channel power distribution switch with similar functionality.

Complementary

The TPS2421-2DDAR can be complemented by the TPS2514A-Q1, which provides additional protection features such as reverse voltage protection and load monitoring, enhancing overall system reliability.

When selecting complementary power management devices, ensure compatibility and alignment with your application requirements for seamless integration.

Frequently Asked Questions

Q: Can the TPS2421-2DDAR handle high current loads?

A: Yes, the TPS2421-2DDAR is designed to handle moderate to high current loads with adjustable current-limit protection for each channel.

Q: Is thermal management necessary when using the TPS2421-2DDAR?

A: Thermal management is important to ensure reliable operation, especially under high-load conditions where the device may activate thermal shutdown protection.

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	Auto-retry	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 TPS2421-2DDAR?

The TPS2421-2DDAR is a precision adjustable overcurrent protection device designed by Texas Instruments. It is ideal for protecting systems from overcurrent and short circuit conditions in applications such as industrial automation, motor control, and power distribution.

How Does TPS2421-2DDAR Work?

The TPS2421-2DDAR works by continuously monitoring the current flowing through the load and comparing it to a user-programmable threshold. When the current exceeds the threshold, the device quickly shuts off power to the load, protecting the system from overcurrent conditions. The TPS2421-2DDAR can be programmed to suit the specific current protection requirements of the application.

How Many Pins does TPS2421-2DDAR have and What are the Functions of the Pinout Configuration?

The TPS2421-2DDAR is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

IN1, IN2: Power input pins.
OUT1, OUT2: Power output pins.
SENSE1, SENSE2: Current sense input pins.
VCC: Power supply pin for internal operation.
UVLO: Undervoltage lockout pin.

What are the Pros and Cons of TPS2421-2DDAR?

Pros:

Precision Overcurrent Protection: Protects systems from overcurrent and short circuit conditions with high accuracy.
Programmable Threshold: Offers flexibility in setting the current threshold to suit specific application requirements.
Fast Response: Quickly shuts off power to the load upon detecting overcurrent conditions, minimizing the risk of damage.
Compact Package: The 8-pin SOIC package is space-efficient, suitable for compact designs.

Cons:

External Components: Additional external components may be required for specific applications, such as sense resistors.
Sensitivity to Noise: Requires careful consideration of the layout and grounding for optimal performance.
Complexity: May require careful calibration and testing to ensure proper operation in various conditions.

Are There Any Equivalents/Alternatives to TPS2421-2DDAR for Recommendation?

The TPS2420 from Texas Instruments is a similar overcurrent protection device with a different maximum current limit setting.
Alternatives to the TPS2421-2DDAR include the LTC4367 from Analog Devices and the MAX16055 from Maxim Integrated.