SLUUCX2 September   2023 TPS92201

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Test Setup
      1. 2.1.1 Connector Description
      2. 2.1.2 Input/Output Connection
      3. 2.1.3 No Dimming Application
    2. 2.2 Best Practices
      1. 2.2.1 Warnings and Cautions
  8. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials
  9. 4Additional Information
    1. 4.1 Trademarks

1.4 Device Information

The TPS92201 is a high-efficiency 1.5-A synchronous buck-type LED driver with 2.5-V to 5.5-V input range. By integrating the high-side and low-side MOSFET, high efficiency and compact solution-size can be achieved. The ultra-low 1-μA shutdown current helps saving power in battery-powered applications.

Adaptive off-time with peak current control scheme is adapted in the TPS92201. To get the smallest output ripple, the device operates at typically 1.5-MHz pulse width modulation (PWM) mode in full current range.

Adaptive off-time with peak current control scheme is adapted in the TPS92201A. At medium to heavy load, the device operates in pulse width modulation (PWM) mode with 1.5-MHz switching frequency. At light load, the device automatically enters pulse frequency modulation (PFM) to maintain high efficiency over the entire load current range for TPS92201A.

The integrated switches have the capability to deliver up to 1.5-A constant current. Analog dimming is achieved by adjusting the duty cycle of the PWM input with 1% to 100% range. 20 kHz to 200 dkHz input PWM frequency can be supported to avoid audible noise.

Full protection methods are implemented in the TPS92201, including LED open, LED short, FB resistor open, FB resistor short and thermal shutdown. The device is available in WSON package with better thermal performance and SOT563 package with ultra-low size.