The AL8807 is a step-down DC/DC converter designed to drive LEDs with a constant current. The device can drive up to 9 LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 6V to 36V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AL8807 switches at frequency up to 1MHz with controlled rise and fall times to reduce EMI. This allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AL8807 is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying either a DC voltage or a PWM signal at the CTRL input pin. An input voltage of 0.4V or lower at CTRL switches off the output MOSFET simplifying PWM dimming.
特点：
• LED driving current up to 1.3A (MSOP-8EP)
• Better than 5% accuracy
• High efficiency up to 96%
• Optimally controlled switching speeds
• Operating input voltage from 6V to 36V
• PWM/DC input for dimming control
• Built-in output open-circuit protection
• SOT25: Available in “Green” Molding Compound (No Br, Sb) with lead Free Finish/ RoHS Compliant (Note 1)
• MSOP-8EP Available in “Green” Molding Compound (No Br, Sb) with lead Free Finish/ RoHS Compliant (Note 1)
应用：
• MR16 lamps
• General illumination lamps
• 12V powered LED Lamps
• 24V powered LED Lamps
公司:深圳市哲瀚电子科技有限公司
联系人:陈小姐
手机:13714441972
电话:0755-82549527/83259945/13714441972
传真:0755-83259945
地址:深圳市福田区深圳市福田区华强北街道深南中路3006号佳和大厦3C006
