IS31LT3178 Overview
The IS31LT3177 and IS31LT3178 are adjustable linear current devices with excellent temperature stability. A single resistor is all that is required to set the operating current from 10mA to 200mA. The devices can operate from an input voltage from 2.9V to 40V with a minimal voltage headroom of 1.0V (Typ.) at 150mA.
IS31LT3178 Key Features
- Low-side current sink
- Adjustable from 10mA to 150mA (SOT236)/200mA (SOP-8-EP) with external resistor selection
- Wide input voltage range from
- 2.9V to 40V (IS31LT3178)
- Up to 1kHz PWM input (IS31LT3178 only)
- ±5% current accuracy
- Protection features
- 0.6%/K current roll off at high temp over 145°C for thermal protection
- Output current limit
- Thermal shutdown