AL8843QSP-13

$1.29

Description：IC LED DRIVER RGLTR PWM 3A 8SO
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:9ca25f5e346d Category: LED Drivers IC Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC LED DRIVER RGLTR PWM 3A 8SO
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Step-Down (Buck)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：4.5V
Voltage - Supply (Max)：40V
Voltage - Output：-
Current - Output / Channel：3A
Frequency：1MHz
Dimming：Analog, PWM
Applications：-
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package：8-SO-EP
Grade：Automotive
Qualification：AEC-Q100

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AL8843QSP-13

Overview

The AL8843QSP-13 is an automotive-compliant step-down LED driver IC from Diodes Incorporated. It supports a wide input voltage range of 4.5V to 40V and delivers an output current up to 3A. The device features an internal 40V NDMOS switch, achieving typical output current accuracy of 4% and efficiency up to 97%. It operates at switching frequencies up to 1MHz and includes protection mechanisms for LED short circuits, open circuits, and over-temperature conditions. Qualified to AEC-Q100 Grade 1 standards, it is housed in a green SO-8EP package.

Feature Summary

Automotive qualification compliant with AEC-Q100 Grade 1 standards
Integrated single-pin control for on/off functionality and brightness adjustment via DC voltage or PWM signals
Comprehensive protection suite including LED short circuit, inherent open-circuit detection, and over-temperature shutdown

Applications

Automotive Daytime Running Lights
Automotive Front and Rear Fog Lights
Automotive Turn/Stop Lights
Automotive Dimmable Interior Lights

Procurement Notes

Verify the specific suffix 'Q' indicates AEC-Q100 automotive qualification distinct from standard industrial variants. Confirm package type matches design requirements, as SO-8EP is specified. Ensure component sourcing aligns with IATF 16949 certified manufacturing facilities for automotive grade integrity. Cross-reference datasheet revisions to confirm parameter consistency.

Selection Notes

Select this component for applications requiring high-efficiency buck conversion with integrated power switches. The wide input voltage range accommodates various automotive bus architectures. Single-pin dimming capability simplifies interface design compared to multi-control pin alternatives. Verify thermal management needs given the 3A output capability and operating temperature limits.

Part Context

This part belongs to the AL8843 series of step-down LED drivers. The 'Q' suffix denotes automotive-grade qualification, differentiating it from the non-automotive AL8843SP-13 variant. Both share similar electrical characteristics but differ in reliability standards and manufacturing controls.