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AL8841QMP-13
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Product Detailed Parameters
- Description：LED MV INT SWITCH MSOP-8EP T&R 2
- 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：40V (Switch)
- Current - Output / Channel：1.5A
- Frequency：1MHz
- Dimming：Analog, PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：8-MSOP-EP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The AL8841QMP-13 is an automotive-grade LED lighting driver IC from Diodes Incorporated, designed for high-efficiency single-channel applications. It operates as a Buck topology DC-DC converter with an internal 40V NDMOS switch. The device supports an input voltage range of 4.5 V to 40 V and delivers an output current up to 1.5 A. Key electrical parameters include a typical output current accuracy of 5%, a switching frequency of 1 MHz, and a maximum supply current of 550 uA. It functions within a temperature range of -40°C to +125°C and is housed in an MSOP-8 package.
Feature Summary
- Integrates a high-side output current sensing circuit for precise average current control using an external resistor.
- Supports PWM dimming for efficient light intensity adjustment in LED applications.
- Includes open LED protection to enhance system reliability and safety.
Applications
- Automotive interior LED lighting systems
- Single or multiple series-connected LED driving
- High-efficiency step-down LED converters
Procurement Notes
Verify the specific suffix 'QMP-13' against official Diodes Incorporated documentation to confirm packaging type and automotive qualification status. Ensure compatibility with your PCB footprint for the MSOP-8 package. Cross-reference the datasheet revision date to validate all electrical specifications before finalizing procurement decisions.
Selection Notes
Select this component for applications requiring a compact solution with integrated power switching capabilities. The 1 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 40V input range suitability for automotive battery systems and the need for PWM dimming functionality in your design requirements.
Part Context
This part belongs to the AL88xx family of LED drivers from Diodes Incorporated, specifically tailored for automotive environments. It shares functional similarities with related models like the AL8860 and AL8861 but is distinguished by its specific switching frequency and packaging configuration. The 'Q' designation indicates automotive grade compliance.
Replacement Considerations
The AL8860QMP-13 and AL8861QMP-13 are related parts within the same product family. Verify if the difference in switching frequency (250 kHz vs 1 MHz) impacts your filter design. Check pinout compatibility before substitution to ensure direct replacement feasibility without schematic changes.
