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Product Detailed Parameters
- Description：IC LED DRIVER OFFL PWM 8SOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR)
- Type：AC DC Offline Switcher
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：10V
- Voltage - Supply (Max)：450V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
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Overview
The IS31LT3938-GRLS2-TR is an AC/DC offline switcher IC designed for LED driver applications. It utilizes a step-down (buck) topology and supports analog PWM dimming. The device features a single output configuration and is housed in an 8-SOP package with dimensions of 0.154 inches. This component functions as an integrated solution for converting AC input to regulated DC output suitable for driving LEDs.
Feature Summary
- Integrates AC/DC offline switching capability with buck topology
- Supports analog pulse-width modulation for dimming control
- Provides a single regulated output channel for LED loads
Applications
- Offline LED lighting systems
- AC-powered LED drivers
- General illumination fixtures requiring buck conversion
Procurement Notes
Verify the current product status before procurement, as official documentation indicates this part may be classified as Not For New Designs (NRND). Confirm package specifications and pinout compatibility with existing designs. Ensure sourcing channels provide genuine components from Lumissil Microsystems or authorized distributors to maintain reliability standards.
Selection Notes
Select this component for applications requiring a simplified offline buck converter architecture for LED strings. Consider its integration level against discrete solutions for space-constrained designs. Evaluate the analog dimming interface requirements against system control capabilities. Review thermal performance within the 8-SOP package for the intended power dissipation levels.
Part Context
This part belongs to Lumissil Microsystems' portfolio of power management integrated circuits, specifically targeting LED lighting drivers. It represents a specialized solution for offline AC-to-DC conversion tailored for lighting applications, distinct from their automotive OLED or matrix display driver lines.
Replacement Considerations
Official notices classify this specific part number as Not For New Designs. Engineers should consult Lumissil Microsystems for recommended alternative components or updated series replacements that offer similar functionality and availability for new production cycles.
