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AL3159FSG-7
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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR 20MA 20QFN
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：Yes
- Number of Outputs：9
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：20mA
- Frequency：1.2MHz
- Dimming：-
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-UFQFN Exposed Pad
- Supplier Device Package：QFN3030-20
- Grade：-
- Qualification：-
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Overview
The AL3159FSG-7 is a high-efficiency LED lighting driver manufactured by Diodes Incorporated. It features a switched capacitor charge pump topology with nine regulated output channels, each capable of delivering up to 20 mA. The device operates within an input voltage range of 2.7 V to 5.5 V and utilizes a switching frequency of 1.2 MHz. Designed for surface-mount installation, it is housed in a QFN-20 package. The component supports an operating temperature range from -40 °C to +85 °C.
Feature Summary
- Integrates a high-efficiency charge pump architecture suitable for white LED applications
- Provides nine individually regulated current output channels
- Supports dimming control functionality
Applications
- White LED backlighting systems
- Portable electronic display illumination
- Battery-powered LED lighting modules
Procurement Notes
Verify the specific suffix 'FSG-7' against the manufacturer's official datasheet to confirm pinout compatibility and packaging specifications. Ensure that the required input voltage range aligns with the system design constraints before procurement. Cross-reference the RoHS compliance status with current regulatory requirements for the target market.
Selection Notes
Select this component when designing circuits requiring multiple regulated LED channels from a low-voltage source. The integrated charge pump eliminates the need for external inductors, simplifying the PCB layout. Consider the thermal performance of the QFN-20 package relative to the total power dissipation of all active channels during operation.
Part Context
This part belongs to the AL315 series of LED drivers from Diodes Incorporated. The series focuses on efficient power conversion for portable devices. The AL3159 variant specifically addresses multi-channel requirements, distinguishing itself from single or dual-channel counterparts in the same product family.
Replacement Considerations
Consult the manufacturer's official documentation for verified substitute part numbers. Do not assume functional equivalence with other LED drivers based solely on package similarity.
