TPS61193 High-Performance Three-Channel LED Driver

1 Features

Input voltage operating range 4.5 V to 40 V
Three high-precision current sinks
- Current matching 1% (typical)
- LED String current up to 100 mA per channel
- Outputs can be combined externally for higher current capability
High dimming ratio of 10 000:1 at 100 Hz
Integrated boost/SEPIC for LED string power
- Output voltage up to 45 V
- Switching frequency 300 kHz to 2.2 MHz
- Switching synchronization input
- Spread spectrum for lower EMI
Extensive fault detection features
- Fault output
- Input voltage OVP, UVLO, and OCP
- Open and shorted LED fault detection
- Thermal shutdown
Minimum number of external components
Simplified Schematic