AL8841Q Series

Automotive 40V 1A/1.5A Step-Down LED Driver

Catalog

Automotive 40V 1A/1.5A Step-Down LED Driver

Part	Voltage - Supply (Max) [Max]	Applications	Voltage - Supply (Min) [Min]	Grade	Type	Topology	Mounting Type	Frequency	Number of Outputs	Dimming	Current - Output / Channel [custom]	Voltage - Output	Operating Temperature [Min]	Operating Temperature [Max]	Internal Switch(s)	Qualification	Package / Case	Supplier Device Package
Diodes Inc AL8841QWT-7	40 V	Automotive	4.5 V	Automotive	DC DC Regulator	Step-Down (Buck)	Surface Mount	1 MHz	1	Analog PWM	1 A	40 V	-40 °C	125 °C		AEC-Q100	SOT-23-5 Thin TSOT-23-5	TSOT-25

Catalog

Automotive 40V 1A/1.5A Step-Down LED Driver

Key Features

• AEC-Q100 (Grade 1) Qualification

• Wide Input Voltage Range: 4.5V to 40V

• Output Current up to 1A for TSOT25 and 1.5A for MSOP-8EP

• Internal 40V NDMOS Switch

• Typical 4% Output Current Accuracy

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

• Recommended Analog Dimming Range: 10% to 100%

• Soft-Start

• High Efficiency (Up to 97%)

• LED Short Protection

• Inherent Open-Circuit LED Protection

• Overtemperature Protection (OTP)

• Up to 1MHz Switching Frequency

• MSOP-8EP & TSOT25 Packages Available in Green Molding Compound (No Br, Sb)

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

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

• The AL8841Q is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF16949 certified facilities.https://www.diodes.com/quality/product-definitions/

Description

The AL8841Q 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 and 1.5A for MSOP-8EP package. Depending upon supply voltage and external components, this converter can provide up to 60W of output power.