TPS2021D

The TPS2021D is a dual power-distribution switch with programmable current limit designed for use in various power management applications. This IC provides protection and control for individual ports or peripherals in a system, offering flexibility and reliability in power distribution.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• IN1: Input for power source 1
• OUT1: Output for power source 1
• EN1: Enable pin for power source 1
• GND: Ground connection
• IN2: Input for power source 2
• OUT2: Output for power source 2
• EN2: Enable pin for power source 2
• FAULT: Fault indicator pin

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the TPS2021D IC for a visual representation.

Key Features

• Dual Power-Distribution Switch: The TPS2021D features two independent power switches, providing flexibility in managing power distribution.
• Programmable Current Limit: Allows users to set the current limit threshold according to specific application requirements.
• Overcurrent Protection: Offers protection against overcurrent conditions, safeguarding connected devices.
• Reverse Current Blocking: Prevents reverse current flow, ensuring proper power delivery.
• Fault Detection: Includes a fault indicator pin for monitoring and diagnosing system issues.

Note: For detailed technical specifications, please refer to the TPS2021D datasheet.

Application

• USB Power Management: Ideal for managing power distribution in USB ports, ensuring safe and efficient charging.
• Battery-Powered Devices: Suitable for use in battery-powered devices to regulate power flow and protect against overcurrent situations.
• Peripheral Control: Can be used to control power supply to peripherals in a system, enhancing overall system reliability.

Functionality

The TPS2021D dual power-distribution switch offers efficient power management and protection for connected devices. It enables controlled and reliable power distribution in various applications.

Usage Guide

• Power Supply: Connect the input pins (IN1 and IN2) to the respective power sources.
• Enable Control: Use the EN1 and EN2 pins to enable or disable the power switches as needed.
• Fault Monitoring: Monitor the FAULT pin for any indication of system faults or overcurrent events.

Frequently Asked Questions

Q: How can I set the current limit on the TPS2021D?
A: The current limit on the TPS2021D can be programmed using external resistors connected to the ILIM pins.

Q: Is the TPS2021D compatible with 3.3V and 5V systems?
A: Yes, the TPS2021D can operate with input voltages ranging from 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems.