Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SO-16-Chip-Image.pngNRND = Not Recommended for New Design
Four-Channel Current Source Boost LED Driver
Contact Sales
Log in or register to manage email notifications about changes to datasheets or PCNs for this part.
The AL3066 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 AL3066 can support two dimming modes: direct PWM dimming, PWM to analog dimming.
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-Q100 Grade | No |
|---|---|
| Compliance (Only Automotive supports PPAP) | Standard |
| Compliance (Only Automotive supports PPAP) | Standard |
| Dimming | PWM or PWM to DC |
| Dimming (Analog) | PWM to DC |
| Dimming (PWM) | Yes |
| Efficiency (%) | 95 |
| Function | Boost Controller with 4- Channel Current Sink |
| LED Current Accuracy (%) | 3 |
| MaximumInput Voltage (V) | 40 |
| Maximum LED Current (A) | 0.4 |
| Maximum Output Current per Channel | 400 |
| Maximum Output Voltage (V) | 60 |
| MinimumInput Voltage (V) | 4.5 |
| Number of Regulated Output Channels | 4 |
| OperatingTemperatureRange (°C) | -40 to 85 |
| OVP | Yes |
| AEC Qualified | No |
| Quiescent Current (µA) | 3 |
| Sense/Feedback Voltage (mV) | N/A |
| Soft Start | Yes |
| Standby Quiescent Current (µA) | 1 |
| SW RDS(ON) | External MOSFET |
| Switching Frequency (MHz) | ADJ 0.1 to 1 |
| Switching Frequency Maximum (kHz) | 1000 |
| Topologies (Boost) | Yes |
| Topologies (Buck-Boost) | No |
| Topologies (Buck) | No |
| Typical Overcurrent Protection Current | 540/RCS |
| VFB | N/A |
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2567 | 2022-03-30 | 2022-09-30 | Device End of Life (EOL) |
