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Product Detailed Parameters
- Description：LED DRVR with I2C 3ch
- Series：-
- Mfr：ETEK MICROELECTRONICS
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：Yes
- Number of Outputs：3
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：5.5V
- Current - Output / Channel：24mA
- Frequency：1MHz
- Dimming：I2C, PWM
- Applications：Camera Flash
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-XFDFN Exposed Pad
- Supplier Device Package：8-DFN (1.5x1.5)
- Grade：-
- Qualification：-
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Overview
The ET6326 is a three-channel linear constant current LED driver IC designed for high-efficiency operation with ultra-low internal voltage drop. It provides precise current regulation of 24mA per channel, suitable for RGB LED applications. The device supports I2C and PWM dimming interfaces, enabling flexible control schemes. Operating with a maximum supply voltage of 5.5V and featuring a switching frequency of 1MHz, it is packaged in an 8-DFN (1.5x1.5mm) footprint to minimize board space.
Feature Summary
- Three-channel output current sink architecture for independent RGB LED control
- Linear constant current regulation ensuring high efficiency and low voltage drop
- Dual dimming capability supporting both I2C digital interface and PWM analog signals
Applications
- Camera flash systems
- RGB LED indicator circuits
- Compact mobile device lighting modules
Procurement Notes
Verify the specific package marking and date code against the manufacturer's latest datasheet before integration. Confirm that the 8-DFN (1.5x1.5mm) thermal pad requirements are met by your PCB layout. Ensure I2C address configurations align with system constraints. Cross-reference part numbers with authorized distributors to avoid counterfeit components.
Selection Notes
Select this component when compact size and precise 24mA constant current are required for RGB LEDs. The I2C interface simplifies control logic compared to parallel drivers. Consider the 5.5V max supply limit and 1MHz frequency when designing power stages. The low voltage drop makes it suitable for battery-powered devices where efficiency is critical.
Part Context
ETEK Microelectronics specializes in high-performance analog integrated circuits. The ET6326 belongs to their LED driver family, which includes models like the ET6226 for keyboard scanning and other variants for displays. This series focuses on efficient power management and compact packaging solutions for consumer electronics.
Replacement Considerations
Check for direct pin-compatible substitutes within the ETEK ET63xx series. Verify if alternative manufacturers offer similar 3-channel linear drivers with matching 24mA output and DFN-8 packages. Ensure interface compatibility remains consistent during substitution.
