Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SO-16-Chip-Image.pngFour-Channel Current Source Boost LED Driver
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The AL3069 is a high-efficiency four-channel boost controller for WLED backlight applications. It operates over a wide input voltage range, from 4.5V to 60V.
The current of the four channels is simply programmed from 20mA to 400mA with an external resistor. The current match between any channels is ±0.5% (typical). Its operating frequency can be adjusted from 0.1MHz to 1MHz.
The AL3069 can support two independent dimming modes: direct PWM dimming and PWM to analog dimming. This function makes AL3069 flexible to design in different dimming applications.
Robust protection features include cycle by cycle current limit, soft-start, 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.
| AEC Qualified | No |
|---|---|
| Compliance (Only Automotive supports PPAP) | Standard |
| Function | Boost LED Driver-Controller |
| MinimumInput Voltage (V) | 4.5 V |
| MaximumInput Voltage (V) | 60 V |
| Maximum Output Voltage (V) | External MOSFET V |
| Number of Regulated Output Channels | 4 |
| Maximum Output Current per Channel | 400 mA mA |
| Typical Over-Current Protection Current | 540/RCS mA |
| Switching Frequency (MHz) | adjustable 0.1M to 1M MHz |
| Efficiency (%) | up to 95 % |
| Quiescent Current (µA) | 3000 mA |
| Standby Quiescent Current (µA) | 1 µA |
| SW RDS(ON) | External MOSFET Ω |
| Dimming | direct PWM and PWM to Analog |
| OVP | Yes |
| Soft Start | Yes |
| VFB | N/A V |
| OperatingTemperatureRange (°C) | -40 to 85 °C |
