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Product Detailed Parameters
- Description：HIGH VOLTAGE LED LIGHTING CONTRO
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：70V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：100kHz ~ 1MHz
- Dimming：Analog, PWM
- Applications：-
- Operating Temperature：-40°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-eTSSOP
- Grade：Automotive
- Qualification：-
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Overview
The IS32LT3958-ZLA3-TR is a high-voltage LED lighting controller manufactured by Lumissil Microsystems. It supports input and supply voltages ranging from 5V to 70V, with an operating frequency between 100kHz and 1MHz. The device features one output channel and supports SEPIC, buck, and boost topologies. It offers analog and PWM dimming capabilities and is housed in a 20-eTSSOP package with exposed pad. The component is qualified for automotive applications and operates within a temperature range of -40°C to 150°C.
Feature Summary
- Supports multiple DC-DC converter topologies including SEPIC, buck, and boost for flexible LED drive configurations.
- Integrates both analog and PWM dimming functions for precise light control.
- Qualified for automotive grade reliability with extended temperature operation.
Applications
- Automotive exterior lighting systems
- High voltage LED driver designs
- Commercial general lighting applications
Procurement Notes
Verify the manufacturer part number IS32LT3958-ZLA3-TR against official Lumissil Microsystems documentation to confirm current availability and revision status. Ensure that the 20-eTSSOP package footprint matches the target PCB layout requirements. Confirm that the automotive qualification meets specific project standards before finalizing procurement orders.
Selection Notes
Select this component when designing high-voltage LED systems requiring flexible topology support such as SEPIC or boost configurations. It is suitable for applications needing integrated dimming control without external microcontrollers for basic functions. Consider the 70V maximum rating and 1A output capability when sizing external components for thermal and electrical performance.
Part Context
This part belongs to the IS32LT series of high-voltage LED controllers from Lumissil Microsystems. The series focuses on providing robust solutions for automotive and commercial lighting markets. The ZLA3 suffix indicates the specific tape and reel packaging configuration for surface-mount assembly processes.
Replacement Considerations
The IS32LT3962 is a dual-channel alternative within the same product family offering similar high-voltage capabilities. Verify pin compatibility and control interface requirements when considering cross-model substitution.
