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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 75MA 20ETSSOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：No
- Number of Outputs：6
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：75mA
- Frequency：-
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-eTSSOP
- Grade：-
- Qualification：-
Download product information
Overview
The IS32LT3146-ZLA3-TR is a six-channel linear LED driver IC manufactured by Lumissil Microsystems. It operates within an input voltage range of 5 V to 40 V and delivers a constant output current of 100 mA per channel. The device utilizes a 20-pin eTSSOP package with exposed pad for surface mount installation. It supports PWM dimming and features sequential turn-on capabilities. The component is rated for operation between -40°C and +150°C, ensuring reliability in demanding thermal environments.
Feature Summary
- Six independent constant current channels for multi-zone LED control
- Sequential turn-on functionality to manage inrush current
- Integrated power shunt mechanism to optimize thermal stress distribution
- Supports PWM dimming for precise brightness adjustment
Applications
- Automotive exterior lighting systems
- General commercial LED illumination
- Residential high-power LED fixtures
Procurement Notes
Verify the specific suffix ZLA3-TR against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure the design accommodates the thermal requirements associated with the power shunt feature. Confirm that the 20-eTSSOP footprint matches the PCB layout specifications before finalizing procurement orders.
Selection Notes
Select this component when designing circuits requiring six isolated LED channels with integrated thermal management. The wide operating temperature range makes it suitable for automotive and industrial applications where standard consumer-grade drivers may fail. Consider the 40 V maximum input voltage limit when selecting power supply rails.
Part Context
This part belongs to Lumissil’s H-BLED driver portfolio, which focuses on monolithic solutions with integrated power MOSFETs. These drivers are engineered for extended-life operation in commercial, residential, and automotive markets. The series emphasizes flexibility in design through built-in protections and efficient thermal handling mechanisms.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing electrical parameters and pin configurations directly with the manufacturer's official cross-reference data.
