AL3065:显示/ 背光 LED 驱动

Part NumberData SheetSPICE ModelFunctionMinimumInput Voltage (V)MaximumInput Voltage (V)Maximum Output Voltage (V)Number of Regulated Output ChannelsMaximum Output Current per Channel (mA)Typical Over-Current Protection Current (mA)Switching Frequency (MHz)Efficiency (%)Quiescent Current (mA)Standby Quiescent Current (µA)SW RDS(ON) (Ω)DimmingOVPSoft StartVFB (V)OperatingTemperatureRange (°C)
AL3065AL3065.pdf-Boost Controller4.5336044000.54/RCS0.19531External MOSFET-YesYes--45 to +85
Description

The AL3065 is a high efficiency 4-channel boost controller for WLED backlight applications. It operates over a wide input voltage ranged from 4.5V to 33V.

The current of the 4 channels is simply programmed from 20mA to 400mA with an external resistor. The current match between any channel is ±1.5% (typical). Its operating frequency can be adjusted from 0.1MHz to 1MHz. The AL3065 can support three dimming modes: direct PWM dimming, PWM to analog dimming and DC to analog dimming.

Robust protection features include cycle by cycle current limit, softstart, UVLO, programmable OVP, OTP, open/short LED protection, Schottky Diode Short and Open Protection, Inductor Short-Circuit Protection and VOUT Short protection.

The IC is available in SO-16 package.

Application
  • LCD Monitor
  • LCD Display Module
  • LCD TV
Features
  • Input Voltage Range: 4.5V to 33V
  • Drivers up to 4 Strings in Parallel, 250mA per String, 400mA Pulse Current
  • ±3% Current Precision
  • Low Ripple for Low BOM Cost
  • 4KV HBM ESD Class
  • High Voltage Pins CS and OVP for Safety Test
  • Supports Direct PWM Dimming, PWM to Analog Dimming and DC to Analog Dimming Control
  • Minimum PWM Dimming Duty Cycle can be 1/10,000 at 100Hz Dimming Frequency
  • LED Open/Short Protection
  • Schottky Diode/Inductor Short-Circuit Protection
  • Built-in OCP, OVP, OTP, UVLO, VOUT Short/Schottky Diode Open Protection
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device
订购型号
  • AL3065S16-13
SO-16
AL3065.pdf AL3065