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AL3644TTCH12-7
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Product Detailed Parameters
- Description：IC LED DRVR RGLTR I2C U-WLB1713
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：2
- Voltage - Supply (Min)：2.5V
- Voltage - Supply (Max)：5V
- Voltage - Output：-
- Current - Output / Channel：1.5A (Flash)
- Frequency：4MHz
- Dimming：I2C, PWM
- Applications：Camera Flash
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-UFBGA, WLBGA
- Supplier Device Package：U-WLB1713-12
- Grade：-
- Qualification：-
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Overview
The AL3644TTCH12-7 is a dual-channel LED lighting driver IC manufactured by Diodes Incorporated. It utilizes a boost topology to drive high-current LEDs, supporting an output current of up to 1.5 A per channel. The device operates within a supply voltage range of 2.5 V to 5 V and features an adjustable output voltage. It functions at a switching frequency of 4 MHz and is housed in a U-WLB1713-12 package. The component is rated for operation between -40°C and +85°C.
Feature Summary
- Dual-channel architecture delivering independent control for high-current LED applications
- Integrated boost converter topology for efficient voltage step-up
- Supports I2C interface for digital configuration and dimming control
Applications
- Camera flash systems
- Handheld device backlighting
- High-brightness LED illumination modules
Procurement Notes
Verify the specific suffix 'TT' against the manufacturer's official documentation to confirm tape-and-reel specifications and pinout compatibility. Ensure the selected variant matches the required packaging format for automated assembly processes. Cross-reference the exact part number with authorized distributors to guarantee authenticity and traceability of the semiconductor components.
Selection Notes
Select this component when designing circuits requiring dual-channel high-current LED driving with compact footprint constraints. The boost topology is suitable for applications where input voltage is lower than the required LED forward voltage. Consider the 4 MHz switching frequency for EMI management and the I2C interface for system integration complexity.
Part Context
This part belongs to the AL3644 series of LED drivers from Diodes Incorporated, designed specifically for portable electronics. The series focuses on providing high efficiency and precise current regulation in small form factors. The AL3644TTCH12-7 variant integrates the necessary power stages and control logic into a single chip to reduce external component count.
Replacement Considerations
Consult official substitution guides for equivalent dual-channel boost LED drivers. Verify pin-to-pin compatibility and electrical parameter alignment before replacing the original component in existing designs.
