High Efficiency 6-string LED Driver with Build-in Boost Regulator
- Parameters
- Features
- Description
| Part Number | SY22161QDC |
|---|
| Fsw (MHz) | 1 |
|---|
| Dimming Mode | PWM |
|---|
| Channels | 1 |
|---|
| Package | QFN3x3-16 |
|---|
| Vin_min (V) | 4.5 |
|---|
| Vin_max (V) | 24 |
|---|
| Vo_max (V) | |
|---|
| Io_max (A) | 0.03 |
|---|
| Features / Special Function | Boost+LDO |
|---|
| Application | Notebook Backlight |
|---|
- Wide input voltage range: 4.5-24V
- 1MHz fixed switching frequency
- Integrated loop compensation
- Drive up to 6 strings of LEDs with up to 11 LED per string
- Minimum on time: 80ns typical
- Minimum off time: 100ns typical
- Over voltage protection
- Low RDS(ON) of internal boost switch: 170mΩ
- PWM dimming control: 0%~100%
- 10000:1 PWM brightness control at 200Hz
- ±2% current matching among strings guaranteed for above 10% dimming level
- Programmable LED current: up to 30mA per string. ±3% accuracy
- Internal softstart
- Compact packages: QFN3x3-16
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY22161QDC is intended for evaluating High Efficiency 6-string LED Driver
with Build-in Boost Regulator