The IS32LT3958B is a current mode PWM controller designed to drive a low side external NMOS FET for wide input/output voltage range and high LED current applications. It supports multiple topologies including Boost, Buck-Boost, SEPIC, and Buck. The device features an integrated PWM generator for standalone dual brightness output, programmable spread spectrum for EMI reduction, and is specifically designed for automotive exterior lighting applications.
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| Input Voltage Range | 5 to 70V |
| Switching Frequency | 100k to 1MHz |
| Operating Temperature | -40 to 150°C |
| Internal PWM Frequency | 100 to 1000Hz |
| PWM Duty Cycle Range | 5 to 100% |
| Current Accuracy | ±2.8% |
| Number of Outputs | 1count |
| Automotive Quality Standard | AEC-Q100 Qualified |
| Environmental | TSCA Compliant |
| Temperature Grade | Grade 1 |
