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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 78MA 28ETSSOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：18
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：78mA
- Frequency：-
- Dimming：PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-eTSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32FL3238-ZLA3-TR is a linear constant current LED driver IC manufactured by Lumissil Microsystems. It features 18 independent output channels, each capable of delivering up to 78mA. The device operates within a supply voltage range of 2.7V to 5.5V and supports PWM dimming for brightness control. Packaged in a 28-eTSSOP with exposed pad, it is designed for applications requiring high channel density and precise current regulation.
Feature Summary
- Provides 18 independent constant current output channels for uniform LED illumination
- Supports PWM dimming interface for smooth brightness adjustment
- Linear topology ensures stable current regulation without external switching components
Applications
- LED backlighting systems
- General LED lighting fixtures
- Display panel illumination
Procurement Notes
Verify the specific suffix ZLA3 against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the 28-eTSSOP package dimensions align with your PCB footprint. Confirm AEC-Q100 automotive qualification status if deploying in automotive environments.
Selection Notes
Select this component when designing circuits requiring multiple low-current LED channels driven from a single low-voltage source. The linear architecture simplifies thermal management compared to switching drivers but requires careful consideration of power dissipation across all 18 channels. Suitable for space-constrained designs utilizing the compact eTSSOP package.
Part Context
This part belongs to the IS32FL series of LED lighting drivers from Lumissil Microsystems. The series focuses on providing integrated solutions for multi-channel LED applications, combining constant current regulation with digital control interfaces in compact packages suitable for modern electronic devices.
Replacement Considerations
Check Lumissil's official substitution guide for direct replacements. Verify that any alternative maintains the 18-channel count, 78mA output capability, and 28-pin eTSSOP form factor to ensure mechanical and electrical compatibility.
