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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 75MA 16ETSSOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：6
- Voltage - Supply (Min)：6V
- Voltage - Supply (Max)：16V
- Voltage - Output：-
- Current - Output / Channel：75mA
- Frequency：-
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-eTSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The IS32LT3181-ZLA3-TR is a six-channel linear LED driver IC designed for automotive lighting and touch key applications. It operates within an input voltage range of 6 V to 16 V, delivering a constant output current of 75 mA per channel. The device supports PWM dimming and features open LED protection. It is housed in an eTSSOP-16 package (5.0mm x 6.4mm) and functions reliably across a temperature range of -40°C to +150°C.
Feature Summary
- Six-channel linear current driver architecture with dual intensity control capabilities
- Integrated PWM dimming functionality for precise brightness regulation
- Open LED protection mechanism to ensure system reliability
- Automotive-grade thermal performance supporting high-temperature environments
Applications
- Automotive exterior lighting systems
- Interior ambient lighting modules
- Touch key controller interfaces
- General-purpose LED string driving
Procurement Notes
Verify the specific suffix ZLA3 against the manufacturer's latest datasheet to confirm pinout and packaging details. Confirm RoHS compliance status through official documentation. Check for end-of-life notices as some sources indicate potential obsolescence for this series. Ensure supply chain stability due to reported discontinuation risks.
Selection Notes
Select this component when a multi-channel linear solution is required for low-voltage automotive LED arrays. The wide operating temperature range suits harsh under-hood or exterior mounting conditions. Consider the 75 mA output limit for LED string sizing. Evaluate the eTSSOP-16 footprint for PCB space constraints compared to alternative topologies.
Part Context
This part belongs to the IS32LT3181 family of linear LED drivers from Lumissil Microsystems. It is positioned for automotive applications requiring multiple channels with fault protection. The series targets cost-sensitive lighting solutions where linear regulation is preferred over switching converters for EMI management.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided data. Verify compatibility with existing designs before sourcing alternatives due to potential discontinuation.
