SLUUCX2 September   2023

 

  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

1.3 Specification

This converter design describes an application of the TPS92201A as an LED driver using the following specifications. For applications with a different input voltage range or different output voltage and current, see the TPS92201 data sheet.

Table 2-1 lists the electrical performance specifications.

Table 1-1 TPS92201AEVM Electrical Performance Specifications
ParameterTest ConditionsMINTYPMAXUnits
Input voltage range, VIN2.25.5V
Input shutdown current, ISDVIN = 3.6V, VEN = 0uA
Output currentRsense = 200 mohms, VIN = 3.6V, 100% duty PWM input490500510mA
Output current range1.5AA
Output current rippleVIN = 5 V, 2 IR LEDs, 1-A output current20mApp
Analog dimming range3.3-V PWM amplitude, approx. 20-200 kHz0.1100%
EfficiencyVIN = 5 V, 1 IR LED, 1-A output current, Analog dimming96%
EfficiencyVIN = 5 V, 2 IR LEDs, 1-A output current, Analog dimming96%
Switching frequency1MHz