The LP3943 is an integrated device capable of independently driving 16 LEDs with 25mA per channel. It features an internal precision oscillator, two prescaler registers, and two PWM registers for versatile duty-cycle control. Designed to reduce SMBUS/I2C bus traffic, it requires only initial setup of frequency and duty cycle for autonomous operation. Any ports not used for LED control can function as general-purpose I/O (GPIO) expanders.
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| Number of Channels | 16Channels |
| Output Current Per Channel | 25mA |
| Input Voltage (Min) | 2.3V |
| Input Voltage (Max) | 5.5V |
| Dimming Rate Range | 0.625 to 160Hz |
| Max Total Output Sink Current | 200mA |
| Quiescent Current (Typ) | 0.35mA |
| Operating Temperature Range | -40 to 85°C |
| RoHS | Compliant |
| Green | RoHS Exemption-free |
Download the complete datasheet for Texas Instruments LP3943 to view detailed technical specifications.
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