资 源 简 介
特性
Seven LED Driver Outputs: On, Off, Blinking, Fading at Programmable Rates
Open-Drain Outputs Directly Drive LEDs to 40 mA Max
Can Be Configured Into Two Independent Banks of LED Drivers
Widely Programmable Blink Rates, Fade-On and Fade-Off Rates and Maximum Intensity
LED Intensity Set Using Pulse Width ModulaTIon (PWM)
Outputs Not Used as LED Drivers Can Be Used as Regular General-Purpose Open-Drain Outputs
16 Steps of Maximum Intensity Control from Fully-Off to Fully-On States
256 Intensity Levels During Fade-On or Fade-Off for Smooth Perceived TransiTIon
OperaTIng Power-Supply Voltage Range of 1.65 V to 3.6 V
EVM Available
Schmitt-Trigger AcTIon Allows Slow Input Transition and Better Switching Noise Immunity at the Inputs
Vhys = 0.18 V Typ at 1.8 V
Vhys = 0.25 V Typ at 2.5 V
Vhys = 0.33 V Typ at 3.3 V
5.5-V Tolerant Open-Drain Outputs
Low Standby Current with Shutdown Capability for Additional Power Savings
Internal Power-On Reset
Internal Oscillator Requires No External Components
Programmed Through I2C Bus Interface Logic Compatible With SMBus
400-kHz Fast I2C Bus
