STMicroelectronics STP2CMP
The STP2CMP is a charge-pump-based 2channel LED driver designed for RGB illumination or LCD display backlighting. The STP2CMP works off a battery with an input voltage between 2.7 V and 5.5 V. The device generates regulated current sinks with high absolute and channel-to-channel accuracy to drive up to 2 LEDs.| Part No. | STP2CMP |
|---|---|
| Datasheet | STP2CMP Download |
| Manufacturer |  STMicroelectronics |
| Description | Low voltage 2-channel constant current LED driver |
| Buy | Stock & Price |
FEATURES
● Operating voltage range: VCC 2.7 V to 5.5 V● 2-channel LED driver with individual ON/OFF control directly from input pins
● Individually programmable output current for the 2 channels through 2 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
● Small QFN20 (1.8x3.2 mm) package
APPLICATIONS
● Mobile phone display backlightingDESCRIPTION
It can support LEDs with forward voltage as high as 3.8 V. The current sink for each channel can be set with 2 individual external resistors. Each channel is controlled independently. The PWM control can be applied directly to the 2 EN (enable) pins to provide brightness control. When enabled, the charge pump, which uses a small ceramic bucket capacitor between C1P and C1N, operates to regulate the VOUT with a clamping voltage at typ. 5 V. The tiny QFN20 (1.8x3.2 mm) package allows the device to be also used for applications with space limitations.
