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Introduction, characteristics, and applications of Texas Instruments TPS92201 Buck LED driver

2/13/2024 9:45:55 AM

Summary: High-efficiency 1.5A synchronous buck driver operating over a 2.5V to 5.5V input voltage range.

TPS92201 Texas Instruments

The Texas Instruments TPS92201 step-down LED driver is a high-efficiency 1.5A synchronous step-down driver operating from 2.5V to 5.5V. These LED drivers operate at 20kHz to 200kHz input PWM frequencies to support avoidance of audible noise. Protection features of the TPS92201 device include LED open circuit, LED short circuit, FB resistor open circuit, FB resistor short circuit, and thermal shutdown. These LED drivers are ideal for test and measurement, power delivery, building automation, smart home cameras, video doorbells, IP cameras, smart door locks and flashlights.


characteristic

  • 2.5V ~ 5.5V input voltage range

  • 1.5A constant output current

  • Up to 95% efficiency

  • 0.1μA shutdown current

  • 220 milliohms (high side) / 170 milliohms (low side) mosfet

  • Up to 100% switch duty cycle

  • 1.5MHz switching frequency

  • Forced PWM mode for low output ripple (TPS92201)

  • Light load efficient power saving mode (TPS92201A)

  • 0.6V to V(IN) output voltage range

  • 100mV feedback regulation voltage

  • 1% to 100% analog dimming, high accuracy

  • 20kHz to 200kHz PWM input frequency range

  • Internal soft start

  • Full protection against overcurrent, LED on/short, and FB resistor on/short

  • Thermal shutdown protection

  • Available in WSON-6 package


app

  • Test and Measurement

  • Power output

  • Building automation

  • Smart home camera

  • video doorbell

  • IP camera

  • Smart door lock

  • flashlight

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