TCA6507 Overview
This 7-bit LED dimmer for the two-line bidirectional bus (I2C) is designed to control (or dim) LEDs through the I2C interface. Without this device, the microcontroller must be actively involved in turning on and off the LEDs (per the required dimming rate), which uses valuable processor time. The TCA6507 alleviates this issue by limiting the number of operations required by the processor in blinking LEDs and helps...
TCA6507 Key Features
- 1 Seven LED Driver Outputs: ON, OFF, Blinking, Fading at Programmable Rates
- Open-Drain Outputs Directly Drive LEDs to 40-mA Maximum
- Two Independent Banks of LED Drivers
- Widely Programmable Blink Rates, Fade-ON and
- Outputs Not Used as LED Drivers Can Be Used
- 16 Steps of Maximum Intensity Control from
- Smooth Perceived Transitions for Fade-ON and
- 5.5-V Tolerant Open-Drain Outputs
- Low Standby Current With Shutdown Capability
- Programmed Through I2C Bus Interface Logic