ISL6719
100V Linear Bias Supply
Key Features
- 100+ Volt Input Capability
- Adjustable Output from 1.5V to 20V
- Up to 100mA Output Current
- Overcurrent Protection
- Over-Temperature Protection
- ENABLE and ENABLE_N Inputs
- Package Compliant with IPC2221A, Creepage and Clearance Spacing Requirements
- Pb-Free (RoHS Compliant)
Description
The ISL6719 is a low cost linear regulator for generating a low voltage bias supply from intermediate distributed voltages commonly used in telecom and datacom applications. It provides a single adjustable output rated at 100mA from either the input source or an auxiliary source such as a transformer winding. The auxiliary source is selected whenever it has sufficient voltage to sustain the output.
The ISL6719 may be used as a start-up or a continuous low power regulator. When operating as a start-up regulator, it is capable of sourcing 100mA from a 100V source for short durations. This period of time allows the power supply to start-up and provide an alternate power source, such as the output of a transformer winding, to the AUXIN input. This allows the regulated output to operate from a lower source voltage to minimize power loss.
Applications
- Telecom/Datacom DC/DC Converters
- Low Power Bias Supplies
