TPS92612 40-V, 150-mA Single-Channel Linear LED Driver and Constant-Current Source With Protection

1 Features

Single-channel high-precision current source:
- ±4.6% Current accuracy from –40°C to +125°C
- Current adjustable by external sense resistor
- Up to 150 mA maximum current
Wide input-voltage range: 4.5 V – 40 V
Brightness control by input PWM duty cycle
Low dropout voltage (current-sense voltage drop included)
- Maximum dropout: 150 mV at 10 mA
- Maximum dropout: 400 mV at 70 mA
- Maximum dropout: 700 mV at 150 mA
Low quiescent current: typical 200 µA
Protection:
- LED short-circuit protection with auto-recovery
- Thermal shutdown
Support heat sharing with external resistor
Operating junction temperature range: –40°C to +150°C