AL8812FDF-13

AL8812FDF-13 Datasheet

AL8812

Part	Datasheet
AL8812FDF-13	AL8812FDF-13 (pdf)

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AL8812 BOOST/BUCK DC-DC CONVERTER FOR DIMMABLE MR16 LED LAMPS The AL8812 is a monolithic control circuit containing the primary functions required for DC-to-DC converters with MOSFET in one package. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. Additionally a 60V, 3.6A MOSFET is integrated for reduced BOM cost and size. This series is specifically designed for buck and boost applications with a minimum number of external components. Pin Assignments NC 1 GATE 2 INPUT 3 VCC 4 SENSE 5 DRIVE 6 12 DRAIN 11 SOURCE 10 TIMING 9 GND 8 SW/E 7 SW/C U-DFN6040-12 • Operation from 3.0V to 20V Input • Integrated 60V, 3.6A MOSFET • Low Standby Current • Current Limiting • Output Voltage Adjustable • Frequency Operation to 100 kHz • Precision 2% Reference • Totally Lead-Free & Fully RoHS Compliant Notes 1 & 2 • Halogen and Antimony Free. “Green” Device Note 3 • Low Voltage LED Lighting such as MR-16 • General Purpose DC-DC Converter No purposely added lead. Fully EU Directive 2002/95/EC RoHS & 2011/65/EU RoHS 2 compliant. See for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 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 Applications Circuit Dimmable MR-16 LED Driver System Diagram For detailed schematic please contact your Diodes Sales Representative AL8812 1 of 11 March 2014 Diodes Incorporated Pin Descriptions Pin Name NC GATE INPUT VCC SENSE Pin Number U-DFN6040-12 1 2 3 4 5 DRIVE SW/C SW/E TIMING SOURCE DRAIN Exposed PAD1 Exposed PAD2 Function No Connection Gate connection of internal MOSFET. Feedback pin for inverting input of internal comparator Supply voltage pin No Connection. Current drive collector Normally connected to VCC directly or via a resistor. Internal switch transistor collector Internal switch transistor emitter Ground Connection Timing Capacitor to control the switching frequency. Source connecton of internal MOSFET Drain connection of internal MOSFET Exposed Pad of MOSFET Drain Exposed Pad of AL8812 and connect to PCB ground Functional Diagram 6 DRIVE 7 SW/C 5 SENSE 4 VCC INPUT 3 Ordering Information AL8812 Part Number Package Code Packaging AL8812FDF-13 U-DFN6040-12 Tube Quantity Part Number Suffix 13” Tape and Reel Quantity Part Number Suffix 3000/Tape & Reel Marking Information 1 U-DFN6040-12 Package Outline Dimensions All dimensions in mm. Please see AP02002 at for latest version. A E E1 Seating Plane U-DFN6040-12 Dim Min Max Typ E1 E2 All Dimensions in mm AL8812 10 of 11 March 2014 Diodes Incorporated AL8812 Suggested Pad Layout Please see AP02001 at for the latest version. Pin1 X G1 Y2 Y3 Dimensions C G G1 X X1 X2 X3 Y Y1 Y2 Y3 Value in mm IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION . Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

PDF Datasheet Preview

AL8812

BOOST/BUCK DC-DC CONVERTER FOR DIMMABLE MR16 LED LAMPS

The AL8812 is a monolithic control circuit containing the primary functions required for DC-to-DC converters with MOSFET in one package. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. Additionally a 60V, 3.6A MOSFET is integrated for reduced BOM cost and size. This series is specifically designed for buck and boost applications with a minimum number of external components.

Pin Assignments

NC 1 GATE 2 INPUT 3

VCC 4 SENSE 5

DRIVE 6
12 DRAIN 11 SOURCE 10 TIMING 9 GND 8 SW/E 7 SW/C

U-DFN6040-12
• Operation from 3.0V to 20V Input
• Integrated 60V, 3.6A MOSFET
• Low Standby Current
• Current Limiting
• Output Voltage Adjustable
• Frequency Operation to 100 kHz
• Precision 2% Reference
• Totally Lead-Free & Fully RoHS Compliant Notes 1 & 2
• Halogen and Antimony Free. “Green” Device Note 3
• Low Voltage LED Lighting such as MR-16
• General Purpose DC-DC Converter

No purposely added lead. Fully EU Directive 2002/95/EC RoHS & 2011/65/EU RoHS 2 compliant. See for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free. 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 Applications Circuit

Dimmable MR-16 LED Driver System Diagram For detailed schematic please contact your Diodes Sales Representative

AL8812
1 of 11

March 2014

Diodes Incorporated

Pin Descriptions

Pin Name

NC GATE INPUT VCC SENSE

Pin Number U-DFN6040-12
1 2 3 4 5

DRIVE

SW/C

SW/E

TIMING

SOURCE

DRAIN

Exposed PAD1

Exposed PAD2

Function

No Connection Gate connection of internal MOSFET. Feedback pin for inverting input of internal comparator Supply voltage pin No Connection. Current drive collector Normally connected to VCC directly or via a resistor. Internal switch transistor collector Internal switch transistor emitter Ground Connection Timing Capacitor to control the switching frequency. Source connecton of internal MOSFET Drain connection of internal MOSFET Exposed Pad of MOSFET Drain Exposed Pad of AL8812 and connect to PCB ground

Functional Diagram
6 DRIVE
7 SW/C
5 SENSE
4 VCC

INPUT 3
Ordering Information

AL8812

Part Number Package Code Packaging

AL8812FDF-13

U-DFN6040-12

Tube

Quantity

Part Number Suffix
13” Tape and Reel

Quantity

Part Number Suffix
3000/Tape & Reel

Marking Information
1 U-DFN6040-12

Package Outline Dimensions All dimensions in mm.

Please see AP02002 at for latest version.

A E E1

Seating Plane

U-DFN6040-12 Dim Min Max Typ

E1 E2

All Dimensions in mm

AL8812
10 of 11

March 2014

Diodes Incorporated

AL8812

Suggested Pad Layout

Please see AP02001 at for the latest version.

Pin1 X

G1 Y2 Y3

Dimensions

C G G1 X X1 X2 X3 Y Y1 Y2 Y3

Value in mm

IMPORTANT NOTICE

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION .

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.

Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks.

This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated.

LIFE SUPPORT

Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AL8812FDF-13 Datasheet file may be downloaded here without warranties.

Datasheet ID: AL8812FDF-13 509803