NXP Semiconductors UBA3077HN
The UBA3077HN is a high efficiency LED driver in an HVQFN40 package for general LED lighting or backlighting LCD displays. The low voltage circuitry is powered by an external 5 V voltage supply. The chip can operate autonomously or be controlled via a 400 kHz I2C-bus.| Part No. | UBA3077HN |
|---|---|
| Datasheet | UBA3077HN Download |
| Manufacturer |  NXP Semiconductors |
| Description | Three-channel switched-mode LED driver |
| Buy | Stock & Price |
FEATURES AND BENEFITS
Three-channel LED backlight driver ±2 % absolute LED current accuracy and channel-to-channel matching External power supply voltage from 10 V to 42 V and 5 V for low voltage circuitry Constant 500 kHz frequency peak current mode control Low value output capacitor (2 μF) Up to 150 mA per channel Peak LED current programmable with external resistor Three boost converters from VIN up to 75 V output voltage High efficiency up to 90 % 14-bit PWM dimming (either defined by system-generated PWMs, or internally generated) from 2.0 kHz to 24 kHz (duty cycle from 0.1 % to 100 %) All power FETs integrated Accurate internal oscillator NXP Semiconductors UBA3077HN Three-channel switched-mode LED driver Dedicated reference voltage input for host interface signals Possible control by I2C-bus with 2-bit address plus a common address for simultaneous configuration of several devices OverVoltage Protection (OVP) Adaptive thermal protection Power-On...
