STEVAL-TLL012V1 4-channel LED driver with charge pump based on the STP4CMP
The STEVAL-TLL012V1 demonstration board demonstrates the performance of the STP4CMP, a charge pump based 4-channel LED driver designed for RGB illumination or LCD display backlighting.
This device works off a battery with an input voltage between 2.7 V - 5.5 V. The device generates regulated current sinks with high absolute and channel-to-channel accuracy to drive up to 4 LEDs.
It can support LEDs with forward voltage as high as 3.8 V.
The current sink for each channel can be set with 4 individual external resistors. Each channel is controlled independently.
The PWM control can be applied directly to the 4 EN (enable) inputs to provide brightness control.
技术特性
- Operating voltage range: 2.7 V to 5.5 V
- Full RGB function support
- 4-channel LED driver with individual ON/OFF control directly from input pins
- Individual programmable output current for the 4 channels through 4 external resistors with a max. capability of 30 mA
- Absolute output current accuracy of max. ±7% and channel-to-channel mismatch of max. ± 4%
- Selectable charge pump enable/disable
- Thermal protection
- RoHS compliant
| 功能框图
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STEVAL-TLL012V1 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| STEVAL-TLL012V1 |
Active |
|
1000 |
|
|
|
|
DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-TLL012V1 : DB1667: 4-channel LED driver with charge pump based on the STP4CMP |
1 |
246KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN3360: 3.2 W LED power supply based on HVLED805 |
2 |
2873KB |
| AN3410: 4-channel LED driver with charge pump based on the STP4CMP |
1 |
1958B |
BILL OF MATERIALS
SCHEMATIC PACKS
PCB LAYOUTS
