The LED1202 is a 12-channel low quiescent current LED driver; it guarantees 5 V output driving capability and each channel is able to provide up to 20 mA with a headroom voltage of 350 mV (typ.) only. The output current can be adjusted separately for each channel by 8-bit analog and 12-bit digital dimming control. A slow turn-on and turn-off time improves the system low noise generation performance; moreover, the phase shifting function helps to reduce the inrush current. Eight patterns can be stored in the internal registers for automatic sequencing without MCU intervention.
Supply range from 2.6 V to 5 V
12 channels for single LED
20 mA current capability per channel
1% (typ.) current matching at 16 mA and 2% (typ.) at 2.5 mA
1.8 V compatible I²C control interface
8-bit analog dimming individual control
12-bit local PWM resolution
8 programmable patterns
Programmable pattern sequence
Synchronization for multi-device application
Phase shifting between channels
Open LED detection
Overtemperature protection
8 configurable I2C slave addresses plus global address