MAX6946 Overview
The MAX6946/MAX6947 I2C -/SMBus TM-patible, serial-interfaced peripherals provide microprocessors with 10 I/O ports rated to 7V. Each port can be configured as a 2.5mA to 20mA constant-current LED driver (static or PWM), a 1.25mA to 10mA constant-current LED driver (static or PWM), an open-drain logic output, or an overvoltage-protected Schmitt logic input. Analog and switching LED intensity control includes indi..
MAX6946 Key Features
- 400kb, 6V-Tolerant Serial Interface
- 2.25V to 3.6V Operation
- I/O Ports Default to High Impedance (LEDs Off) on Power-Up
- I/O Port Inputs Are Overvoltage Protected to 7V
- I/O Port Outputs Are 7V-Rated Open-Drain, 10mA or 20mA Constant-Current Static/PWM LED Drivers, or Open-Drain Logic Outp
- I/O Ports Support Hot Insertion
- Individual 8-Bit PWM Intensity Control for Each LED
- RST Input Clears Serial Interface and Can Exit Shutdown (Warm Start)
- MAX6946 OSC Input Allows for External PWM Clock Input
- MAX6947 AD0 Input Selects from Four Slave Addresses