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Texas Instruments TPS92201 Buck LED Drivers

Texas Instruments TPS92201 Buck LED Drivers are high-efficiency 1.5A synchronous buck-type drivers that operate from 2.5V to 5.5V input voltage range. These LED drivers operate at 20kHz to 200kHz input PWM frequency and can support to avoid audible noise. The TPS92201 device’s protection features include LED open, LED short, FB resistor open, FB resistor short, and thermal shutdown. These LED drivers are ideal for testing and measurement, power delivery, building automation, smart home cameras, video doorbells, IP cameras, smart door locks, and flashlights.

Features

2.5V to 5.5V input voltage range
1.5A constant output current
Up to 95% efficiency
0.1μA shutdown current
220mΩ (high-side) / 170mΩ (low-side) MOSFETs
Up to 100% switching duty cycle
1.5MHz switching frequency
Force PWM mode for low output ripple (TPS92201)
Power save mode for high efficiency in light load (TPS92201A)
0.6V to V_IN output voltage range

100mV feedback regulation voltage
1% to 100% analog dimming with high accuracy
20kHz to 200kHz PWM input frequency range
Internal soft startup
Full protection with over current, LED open/short, and FB resistor open/short
Thermal shutdown protection
Available in WSON-6 package

Applications

Test and measurement
Power delivery
Building automation
Smart home cameras

Video doorbells
IP cameras
Smart door locks
Flashlights

Texas Instruments TPS92201 Buck LED Drivers

Features

Applications

Simplified Schematic

Block Diagram

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