The TPS922152 is a non-synchronous, Average-Current control Buck LED driver
with a wide bus voltage range of 4.5V to 200V. It utilizes Adaptive
Off-Time (AOT) mode to drive
external switching FETs, ensuring low LED current ripple and
fast transient response even with a small output capacitor.
The switching frequency is configurable from 50kHz to 1MHz,
supporting single-layer PCB design and common anode
configurations.
For dimming, the TPS922152 supports high-accuracy analog dimming via
the ADIM pin, achieving a dimming ratio of up to 1000:1 using unique corrective
sensing technology. For PWM dimming, the PDIM pin uses proprietary Inductive Fast
Dimming (IFD) to provide high-frequency, high-ratio control with high precision.
Additionally, the device integrates comprehensive protection features, including LED
open/short and sense resistor open/short protection.
The TPS922152 is a non-synchronous, Average-Current control Buck LED driver
with a wide bus voltage range of 4.5V to 200V. It utilizes Adaptive
Off-Time (AOT) mode to drive
external switching FETs, ensuring low LED current ripple and
fast transient response even with a small output capacitor.
The switching frequency is configurable from 50kHz to 1MHz,
supporting single-layer PCB design and common anode
configurations.
For dimming, the TPS922152 supports high-accuracy analog dimming via
the ADIM pin, achieving a dimming ratio of up to 1000:1 using unique corrective
sensing technology. For PWM dimming, the PDIM pin uses proprietary Inductive Fast
Dimming (IFD) to provide high-frequency, high-ratio control with high precision.
Additionally, the device integrates comprehensive protection features, including LED
open/short and sense resistor open/short protection.