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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：-
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Overview
The IS32LT3147-ZLA3-TR is a six-channel linear LED driver IC manufactured by Lumissil Microsystems. It provides constant current output of 75 mA per channel with individual PWM dimming capabilities and integrated power shunt protection. The device operates within an input voltage range of 5 V to 40 V and is housed in a 20-pin eTSSOP package with exposed pad. It supports surface mount installation and functions across a temperature range of -40°C to +150°C, featuring a maximum supply current of 7 mA.
Feature Summary
- Six independent linear constant current channels for precise LED control
- Individual pulse-width modulation (PWM) dimming for each channel
- Integrated thermal shunt protection to manage over-temperature conditions
- Wide operating input voltage range suitable for various power supplies
Applications
- General LED lighting systems requiring multi-channel drive
- Commercial lighting fixtures with dimming requirements
- Residential LED illumination applications
- Automotive interior lighting modules
Procurement Notes
Verify the specific suffix ZLA3 against the manufacturer's latest datasheet to confirm pinout and electrical specifications match your design requirements. Confirm moisture sensitivity level handling procedures during assembly. Ensure the eTSSOP-20 footprint matches your PCB layout guidelines. Check for any product change notifications that may affect performance or packaging details before finalizing procurement orders.
Selection Notes
Select this component when designing circuits requiring six independently controllable LED channels with linear regulation. It is suitable for applications needing individual PWM dimming without external microcontroller complexity for each channel. Consider the 75 mA output limit and 40 V maximum input voltage when sizing the LED string configuration. The exposed pad package requires adequate thermal management on the printed circuit board.
Part Context
This part belongs to the IS32LT series of high-side linear LED drivers from Lumissil Microsystems. The series focuses on providing flexible solutions for general lighting markets with built-in protections. These drivers are designed for commercial, residential, and automotive applications, offering monolithic integration to simplify design and extend operational life through robust fault protection features.
Replacement Considerations
Consult official Lumissil documentation for qualified substitute part numbers. Verify compatibility regarding channel count, output current, package type, and control interface before substitution.
