PCA9901
Description
The PCA9901 is a 20 mA current source for a single LED that allows stand-alone blinking of a predefined pattern to off-load the microcontroller and save battery power.
Key Features
- 1 wire interface to control the device
- Stand-alone blinking capability while training the sequence to blink
- Sequence includes up to 3 blinking elements
- 1.8 V pliant one-wire logic interface
- Training Start, Training End, Run-Once, Run, Stop and Reset mands
- 110 mV max dropout voltage driver at 20 mA
- Fully internal oscillator for sequence training, LED timing, mand and Sequencing Controls
- Short circuit and thermal protection
- 2.7 V to 5.5 V power supply
- Very low quiescent current: < 0.75 μA NXP Semiconductors PCA9901 One wire single LED driver
