The IS32LT3178 is an adjustable linear current device with excellent temperature stability. A single resistor is all that is required to set the operating current from 10mA to 200mA. The device can operate from an input voltage from 2.9V to 40V with a minimal voltage headroom of 1.0V (Typ.) at 150mA. It features an EN-PWM pin for high-frequency PWM dimming up to 1kHz. Designed for automotive applications, it includes thermal roll-off protection, thermal shutdown, and output current limit.
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| Input Voltage Range | 2.9 to 40V |
| Output Current Range | 10 to 200mA |
| Voltage Headroom (Typ) | 1.0V |
| Output Current Accuracy | ±5% |
| PWM Frequency (Max) | 1kHz |
| Thermal Roll-off Threshold | 145°C |
| Current Roll-off Rate | 0.6%/K |
| Automotive Qualification | AEC-Q100 |
| RoHS | Compliant |
