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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：-
- Operating Temperature：-40°C ~ 125°C (TA)
- 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 IS32FL3209-ZLA3-TR is an 18-channel linear constant current LED driver IC designed for automotive and lighting applications. It supports PWM dimming with frequencies of 24 kHz or 4 kHz, offering 1/24 DC scaling for white balance adjustment. The device operates on a supply voltage range of 2.7 V to 5.5 V, delivering a channel output current of 78 mA. It features AEC-Q100 qualification for automotive use and is housed in a 28-eTSSOP package with exposed pad.
Feature Summary
- Supports PWM dimming with selectable frequencies and DC scaling for precise brightness control
- Automotive-grade qualification ensuring reliability in harsh environments
- Linear constant current topology simplifying external component requirements
Applications
- Automotive interior lighting systems
- Ambient lighting modules
- General-purpose LED matrix drivers
Procurement Notes
Verify the specific suffix ZLA3 corresponds to the required tape and reel packaging configuration. Confirm that the 28-eTSSOP footprint matches the target PCB design constraints. Ensure the operating temperature range aligns with the intended application environment. Cross-reference the datasheet revision to confirm compatibility with existing firmware or control logic.
Selection Notes
Select this component when an 18-channel solution with linear regulation is preferred over switching topologies for reduced EMI. The 78 mA output current suits standard automotive LED strings. Consider the 2.7 V minimum supply voltage for low-voltage battery-powered systems. The AEC-Q100 certification is critical for OEM automotive compliance requirements.
Part Context
This part belongs to Lumissil's IS32FL series of LED lighting drivers. It is specifically engineered for high-reliability automotive applications requiring multiple channels with precise current control. The series emphasizes simplified design through integrated PWM generation and fault protection mechanisms.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility with alternative vendors before substitution.
