AL1791：线性LED 驱动
| Part Number | Data Sheet | SPICE Model | Qualified to AECQ10x | PPAP Capable | Topology | Minimum Supply Voltage (V) | Maximum Supply Voltage (V) | Maximum VOUT (V) | Number of Channels | LED Current Sense Voltage (mV) | OutputCurrent (mA) | LED Current (mA) | Accuracy (%) | Frequency (kHz) | Efficiency (%) | Dimming | Temperature Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AL1791 | AL1791_1792_1793_1794.pdf | - | No | - | Linear LED Driver | 6.5 | 30 | 30 | 1 | - | 600 | 1200 | - | - | - | Linear and PWM | -40 to +85 |
Description
The AL1791, a single-channel LED driver with analog and PWM dimming control, is targeted for Tunable White/Color Smart Lighting application. It serves as the LED driving element along with AC-DC Power Conversion Block and Intelligent MCU as emerging smart light bulb configuration. The key merits attribute to cost-effectiveness, dimming performance, low standby power, ease of system implementation, and great scalability.
Application
- Tunable Color Smart LED Light Bulbs
- Tunable White Smart LED Light Bulbs
- Dimmable Smart LED Light Bulbs
- LED Power Supply
- Smart Lighting
- DC-DC
- LED Drivers
Features
- Input Voltage Range: 6.5V to 30V, 1-channel LED drivers: independent Analog or PWM dimming control for each channel
- Reference Current: Adjustable by an external reference resistor
- Ratio-optimized currents for 4 independent LED channels (AL1794 only): Suitable for Tunable White and Tunable Color
- Low Standby Power: With EN pin
- E-flicker free PWM dimming: Support 4KHz down to sub-1%
- Internal Protections: Under Voltage Lockout (UVLO)
- LED string open/short protection
- Over temperature protection (OTP): Thermal fold-back and Thermal shut down
- Fault Reporting: UVLO, OTP, Open, and Short
- LED Power Good Reporting
- Low system BOM cost
- Ambient Temperature Range -40°C to +105°C
订购型号
- AL1791AFE-13
U-DFN4030-14
- AL1791_1792_1793_1794.pdf AL1794
