AL3065：显示/ 背光 LED 驱动
| Part Number | Data Sheet | SPICE Model | Function | MinimumInput Voltage (V) | MaximumInput Voltage (V) | Maximum Output Voltage (V) | Number of Regulated Output Channels | Maximum 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) | Dimming | OVP | Soft Start | VFB (V) | OperatingTemperatureRange (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AL3065 | AL3065.pdf | - | Boost Controller | 4.5 | 33 | 60 | 4 | 400 | 0.54/RCS | 0.1 | 95 | 3 | 1 | External MOSFET | - | Yes | Yes | - | -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
