Electronic Components Datasheet Search |
|
AL8807B Datasheet(PDF) 1 Page - Diodes Incorporated |
|
AL8807B Datasheet(HTML) 1 Page - Diodes Incorporated |
1 / 18 page AL88070B Document number: DS36191 Rev. 1 - 2 1 of 18 www.diodes.com March 2014 © Diodes Incorporated AL8807B HIGH EFFICIENCY 36V 1.3A PWM DIMMABLE BUCK LED DRIVER Description The AL8807B 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 AL8807B 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 AL8807B is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying 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. Features LED driving current up to 1.3A Better than 5% accuracy High efficiency up to 96% Optimally controlled switching speeds Operating input voltage from 6V to 36V PWM input for dimming control Open-Circuit LED protection LED Chain Short Circuited Over-Temperature Protection MSOP-8EP Available in “Green” Molding Compound (No Br, Sb) with lead Free Finish/ RoHS Compliant Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Pin Assignments Applications MR16 lamps General illumination lamps 12V powered LED Lamps 24V powered LED Lamps Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Typical Application Circuit (Top View) MSOP-8EP SET GND GND CTRL V IN N/C SW SW AL8807B C2 R1 C1 D1 L1 PWM Dimming Input: VIN: 6 ~ 36V |
Similar Part No. - AL8807B |
|
Similar Description - AL8807B |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |