STMicroelectronics LED1202
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. The pattern sequence can be also configured for duration time and number of repetition.| Part No. | LED1202 |
|---|---|
| Datasheet | LED1202 Download |
| Manufacturer |  STMicroelectronics |
| Description | 12-channel low quiescent current LED driver |
| Buy | Stock & Price |
FEATURES
● 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
● Fault flag pin
APPLICATIONS
● RGB LED lighting, fade-in and fade-out breathing effect, indicator lights for: – Wearable electronics – Battery powered devices – Portable accessoriesDESCRIPTION
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. For multi-device applications, a common clock domain can be shared for timing synchronization.
