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Product Detailed Parameters
- Description：IC LED DRV LIN PWM 16ETSSOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：Constant Current
- Internal Switch(s)：Yes
- Number of Outputs：4
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：28V
- Voltage - Output：-
- Current - Output / Channel：150mA
- Frequency：-
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- 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 IS32LT3124A-ZLA3-TR is a quad-channel linear LED driver IC designed for automotive lighting applications. It features dynamic headroom control (DHC), one-fail-all-fail protection, and auto-recover capabilities. The device operates with a supply voltage range of 5 V to 28 V and delivers up to 150 mA per channel. It supports PWM dimming and includes integrated fault reporting. Packaged in a 16-TSSOP with an exposed pad, it functions within a temperature range of -40°C to +125°C.
Feature Summary
- Quad-channel linear architecture with dynamic headroom control for optimized power efficiency
- Integrated fault detection with one-fail-all-fail logic and automatic recovery mechanisms
- Supports pulse-width modulation (PWM) dimming for precise brightness control
Applications
- Automotive exterior lighting systems
- Interior vehicle illumination modules
- LED sign and display drivers
Procurement Notes
Verify the specific suffix ZLA3 against the manufacturer's latest datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with automotive grade AEC-Q100 requirements if deploying in vehicular environments. Cross-reference the part number with official Lumissil documentation to validate current production status and any recent product change notifications affecting pinout or electrical characteristics.
Selection Notes
Select this component when a multi-channel solution with independent current regulation is required. The integrated dynamic headroom control reduces power dissipation compared to standard linear drivers. Consider the 16-TSSOP package for PCB space constraints. Verify that the input voltage range aligns with the system's power supply rails and that PWM dimming frequencies are supported by the controller interface.
Part Context
This part belongs to the IS32LT3124 family of LED drivers from Lumissil Microsystems. It is specifically engineered for high-reliability automotive applications requiring multiple output channels. The series emphasizes fault tolerance and thermal management through its linear topology and advanced control algorithms.
Replacement Considerations
Check for direct substitutes within the IS32LT3124 family, such as the IS32LT3124B variant, ensuring functional equivalence in channel count and control interfaces. Verify package compatibility before substitution.
