Texas Instruments TPS922051/0 User Manual

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EVM User's Guide: TPS922050/1EVM
TPS922051/0 65V 2A/1A Buck LED Driver Evaluation
Module with PWM/Analog Dimming
Description
The TPS922051/0 evaluation module (EVM) is a
two-layer PCB assembly with multiple variants to
help the user evaluate the main features and
performance of the TPS922051/0 device family. The
TPS922051/0 is a 2A / 1A non-synchronous Buck
LED driver with 4.5V to 65V wide input range with
PWM / analog dimming function. By integrating the
low-side NMOS, the device is capable of driving
LEDs with high power density and high efficiency.
This document includes setup guidance, schematics,
printed-circuit board (PCB) layouts, and bill of
materials (BOM) for the whole family of TPS922051/0
EVMs, including TPS922051D1DSGREVM,
TPS922051D2DSGREVM,
TPS922050D1DSGREVM,
TPS922050D2DSGREVM,
TPS922051D1DGNREVM,
TPS922051D2DGNREVM,
TPS922050D1DGNREVM,
TPS922050D2DGNREVM, TPS922050D1DRLREVM
and TPS922050D2DRLREVM.
Features
• LED common anode connection
• Integrated 300mΩ MOSFET
SLUUD71 – DECEMBER 2024
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– Typical current limit (1.6A / 3.2A)
– Switching frequency (400kHz / 1MHz)
• Advanced dimming options:
– D1 for PWM dimming
– D2 for Analog dimming
• Full protection features:
– LED open and short protection
– Switching FET open and short protection
– External component failure protection
– Cycle-by-cycle current limit
– Thermal shutdown
• Package: WSON-8, HVSSOP-8, SOT583
Applications
• Constant illumination:
– Indoor and outdoor lighting
– Appliance lighting
– Cold/warm WLED lighting
– Emergency and signage lighting
– Security floodlight
– LED bulb and lamp
– LCD backlight
• Instant illumination
– Machine vision and camera flash
– Fire alarm and strobe
Figure 1-1. TPS922051D1DSGREVM
TPS922051/0 65V 2A/1A Buck LED Driver Evaluation Module with PWM/
Copyright © 2024 Texas Instruments Incorporated
Description
1
Analog Dimming