Multiple Dimming Isolated PWM Controller for high-performance LED lighting
Diodes Incorporated announced the availability of the versatile dimming input controller for offline LED lamps. AL8116 works with three types of dimmer signal formats: 0 to 10 V dimming voltage PWM (Pulse Width Modulation) signal Simple potentiometer It converts these to a PWM output signal which can easily be used to provide an isolated dimming control via an optocoupler to the primary side LED driver.
Diodes Incorporated announced the availability of the versatile dimming input controller for offline LED lamps. AL8116 works with three types of dimmer signal formats:
- 0 to 10 V dimming voltage
- PWM (Pulse Width Modulation) signal
- Simple potentiometer
It converts these to a PWM output signal which can easily be used to provide an isolated dimming control via an optocoupler to the primary side LED driver.
Features
- Wide VCC Operating Range 10 V to 56 V
- Low Operation Current (Typical 600 μA)
- Precision Dimmer Type with
- Voltage Potential: 0/1 V to 10 V
- PWM Dimming: 0.2 kHz to 10 kHz
- Potentiometer: 0 to 100 kΩ
- Adjustable Bias Current Source of DIM Pin
- Accurate Output Duty Cycle Tolerance ±2.5%
- Adjustable Minimum Output PWM Duty Clamping: 8%, 6%, 4%, and 2%
- Built-In Over Temperature Protection for Chip
- Totally Lead-Free & Fully RoHS Compliant
The AL8116 has a wide supply voltage range from 10 V to 56 V. The AL8116 Output Duty Cycle accuracy is typically ±2.5% and its minimum Output Duty cycle can be set through a CLAMP pin resistor.
The AL8116 has internal overtemperature protection (OTP) and it is available in the SOT26 package.
