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ISSI IS32LT3957 | Demoboard IS32LT3957 Buck_Boost DEMO
HIGH VOLTAGE LED LIGHTING DRIVER FOR BUCK-BOOST, BOOST TOPOLOGY
Overview
| Topology | Buck-Boost Converter |
| Input voltage | 9-26 V |
| Switching frequency | 100-1000 kHz |
| Output 1 | 28 V / 1.2 A |
| IC revision | 1B |
Description
IS32LT3957 Buck_Boost DEMO BOMInput: DC9-26V, Output: 9 LED in series/1.2ARev.01B, 05/20/2017
Features
- Wide voltage: VCC up to 75V
- Boost or buck-boost operation
- Easy dimming: Analog or PWM
- Output over voltage protection (OVP)
- Internal soft start to avoid inrush current
- Current mode PWM with an external sync feature
- Output short circuit protection
- VCC under voltage lock out
- Over temperature protection (OTP)
- AEC-Q100 (Pending)
Typical applications
- Automotive
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | ISAT,10%(A) | ISAT,30%(A) | IR,40K(A) | IRP,40K(A) | RDC max.(mΩ) | fres(MHz) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 22 µH, 6.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance22 µH | Saturation Current @ 10%6.5 A | Saturation Current @ 30%8 A | Rated Current5.3 A | Performance Rated Current7 A | DC Resistance28 mΩ | Self Resonant Frequency10 MHz | Size1210 | VersionStandard |