IS31LT3173 Overview
The IS31LT3172 and IS31LT3173 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 2.5V to 42V with a minimal voltage headroom of 1V (typical).
IS31LT3173 Key Features
- Low-side current sink
- Current preset to 10mA
- Adjustable from 10mA to 200mA with external resistor selection
- Wide input voltage range from
- 2.5V to 42V (IS31LT3173)
- 5V to 42V (IS31LT3172) with a low dropout of typical 1V
- Up to 10kHz PWM input (IS31LT3173 only)
- Protection features
- 0.26%/K negative temperature coefficient at high temp for thermal protection
- Up to 1.8W power dissipation in a small SOP-8EP package