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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 78MA 28ETSSOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tube
- 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 is an 18-channel linear constant current LED driver IC manufactured by Lumissil Microsystems. It supports PWM dimming with a maximum output current of 78mA per channel. The device operates on a supply voltage range of 2.7V to 5.5V and features a 1MHz switching frequency. It is housed in a 28-eTSSOP package with exposed pad for thermal dissipation. The component is qualified to AEC-Q100 standards, ensuring reliability for automotive applications across a temperature range of -40°C to +125°C.
Feature Summary
- Provides 18 independent constant current channels for precise LED control
- Supports high-frequency PWM dimming for flicker-free brightness adjustment
- Integrated linear topology eliminates the need for external inductors
- Automotive-grade qualification ensures robust performance in harsh environments
Applications
- Automotive interior ambient lighting systems
- Vehicle exterior lighting modules requiring uniform illumination
- High-density LED backlighting arrays in automotive displays
- General solid-state lighting solutions demanding compact form factors
Procurement Notes
Verify the specific suffix ZLA3 against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with your PCB footprint for the 28-eTSSOP package. Confirm that the AEC-Q100 grade meets your project's automotive quality standards before finalizing procurement decisions.
Selection Notes
Select this component when designing systems requiring multiple low-current LED channels without magnetic components. The linear architecture suits applications where efficiency is secondary to simplicity and cost. Consider the 78mA limit per channel when sizing heat dissipation strategies. Verify input voltage stability within the 2.7V to 5.5V range for optimal operation.
Part Context
This part belongs to the IS32FL series of LED drivers from Lumissil Microsystems, specialized for automotive lighting applications. The series emphasizes high channel counts and compact packaging to support modern vehicle interior and exterior lighting designs. It complements other automotive PMIC offerings by providing dedicated, reliable LED control capabilities.
Replacement Considerations
Check Lumissil's official documentation for direct pin-to-pin replacements within the IS32FL family. Verify if alternative manufacturers offer compatible 18-channel linear drivers with similar current ratings and package dimensions. Ensure any substitute maintains AEC-Q100 certification if required for your application.
