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Detalles del producto

Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 200 Iout (max) (A) 20 Features Controller, Cycle-by-cycle over-current protection, LED Open Detection, LED Short Detection Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 200 Iout (max) (A) 20 Features Controller, Cycle-by-cycle over-current protection, LED Open Detection, LED Short Detection Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Wide application voltage up to 200V
  • 4.5V to 15V input voltage range
  • LED common Anode connection
  • Adjustable switching frequency: 50kHz-1MHz
  • Adaptive Off-Time mode
  • Advanced dimming options:
    • Analog dimming (1000:1)
    • PWM dimming (50ns pulse width, 1000:1 at 20kHz)
    • Flexible dimming (20,000:1 at 20kHz PWM)
  • Low Standby current
  • Full protection features:
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Sense resistor open and short protection
    • Fault output
  • Package: SOIC-8
  • Wide application voltage up to 200V
  • 4.5V to 15V input voltage range
  • LED common Anode connection
  • Adjustable switching frequency: 50kHz-1MHz
  • Adaptive Off-Time mode
  • Advanced dimming options:
    • Analog dimming (1000:1)
    • PWM dimming (50ns pulse width, 1000:1 at 20kHz)
    • Flexible dimming (20,000:1 at 20kHz PWM)
  • Low Standby current
  • Full protection features:
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Sense resistor open and short protection
    • Fault output
  • Package: SOIC-8

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.

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* Hoja de datos TPS922152 Average-Current Buck LED Driver with Wide Input Range, 0.1% Analog Dimming Ratio and Inductive Fast PWM Dimming datasheet (Rev. A) PDF | HTML 24/09/2026

Diseño y desarrollo

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Placa de evaluación

TPS922152EVM — Módulo de evaluación TPS922152

El módulo de evaluación (EVM) TPS922152EVM de Texas Instruments ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del conductor buck para LED (diodo emisor de luz) TPS922152. El TPS922152EVM opera con un rango de tensión de entrada de 4.5 V a 15 V, un tensión de bus de 60 V y (...)
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