AL8861 Series

40V 1.5A BUCK LED Driver

Catalog

40V 1.5A BUCK LED Driver

Part	Voltage - Output	Package / Case	Package / Case [custom]	Frequency	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Dimming	Voltage - Supply (Max) [Max]	Number of Outputs	Current - Output / Channel	Type	Topology	Voltage - Supply (Min) [Min]	Mounting Type	Supplier Device Package	Current - Output / Channel [custom]	Utilized IC / Part	Supplied Contents	Voltage - Input [Min]	Voltage - Input [Max]	Features	Outputs and Type	Outputs and Type
Diodes Inc AL8861MP-13	36 V	8-MSOP 8-TSSOP Exposed Pad	0.118 in 3 mm	1 MHz	Backlight Lighting Signage	85 °C	-40 °C	Analog PWM	40 V	1	1.5 A	DC DC Regulator	Step-Down (Buck)	4.5 V	Surface Mount	8-MSOP-EP
Diodes Inc AL8861WT-7	36 V	SOT-23-5 Thin TSOT-23-5		1 MHz	Backlight Lighting Signage	85 °C	-40 °C	Analog PWM	40 V	1		DC DC Regulator	Step-Down (Buck)	4.5 V	Surface Mount	TSOT-25	1 A
Diodes Inc AL8861QEV1	36 V										1.5 A							AL8861Q	Board(s)	4.5 V	40 V	Dimmable	Non-Isolated	10
Diodes Inc AL8861Y-13	36 V	SOT-89-5/6		1 MHz	Backlight Lighting Signage	85 °C	-40 °C	Analog PWM	40 V	1	1.5 A	DC DC Regulator	Step-Down (Buck)	4.5 V	Surface Mount	SOT-89-5

Catalog

40V 1.5A BUCK LED Driver

Key Features

• Low BOM Counts

• Wide Input Voltage Range: 5V to 40V

• Output Current up to 1.5A

• Internal 40V NDMOS Switch

• Typical 5% Output Current Accuracy

• Single Pin for On/Off and Brightness Control by DC Voltage or PWM Signal

• Recommended Analog Dimming Range: 5% to 100%

• Soft-Start

• High Efficiency (Up to 97%)

• LED Short Protection

• Inherent Open-Circuit LED Protection

• RSShort Protection

• Overtemperature Protection (OTP)

• Up to 1MHz Switching Frequency

• Pb-Free TSOT25, SOT89-5 and MSOP-8EP Packages

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. "Green" Device (Note 3)

• An Automotive-Compliant Part is Available Under Separate Datasheet (AL8861Q)

Description

The DIODESTMAL8861 is a hysteresis-mode DC-DC step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device can operate from an input supply between 4.5V and 40V and provide an externally adjustable output current up to 1A for TSOT25 package and 1.5A for SOT89-5 and MSOP-8EP packages. Depending upon supply voltage and external components, this converter can provide up to 40W of output power.