低压7位I2C和SMBus LED驱动器,带有亮度控制和关机 LOW-VOLTAGE 7-BIT I2C AND SMBus LED DRIVER WITH INTENSITY CONTROL AND SHUTDOWN
* 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 * Noise Filter on SCL/SDA Inputs * No Glitch on Power Up * Supports Hot Insertion * ESD Protection Exceeds JESD 22 * 2000-V Human-Body Model A114-A * 200-V Machine Model A115-A * 1000-V Charged-Device Model C101 * Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
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