The STP4CMP is a low voltage 4-channel constant current LED driver with charge pump, designed for RGB illumination or LCD display backlighting.
The STP4CMP is a charge pump-based 4-channel LED driver designed for RGB illumination or LCD display backlighting. It operates from a supply voltage between 2.7 V and 5.5 V and generates regulated current sinks with high accuracy to drive up to 4 LEDs with forward voltages as high as 3.8 V. Each channel can be controlled independently via enable pins and PWM signals for brightness control.
| Operating voltage range | 2.7 V to 5.5 V |
|---|---|
| Max output current per channel | 30 mA |
| Output current accuracy | Max. +7% |
| Channel-to-channel mismatch | Max. +4% |
| Max LED forward voltage | 3.8 V |
| Operating ambient temperature | -30 to 85 °C |
| Package type | QFN20 (1.8 x 3.2 mm) |
The device operates with a supply voltage between 2.7 V and 5.5 V.
It is a 4-channel LED driver with individual ON/OFF control for each channel.
Yes, the charge pump enable/disable function is selectable via the CP_Sel pin.