ISL6719

100V Linear Bias Supply

Product Status: Mass Production

OVERVIEW

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.

KEY FEATURES

  • 100V+ 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

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL6719
Basic Information
Production Status
Mass Production
Input Voltage Min (V)
17
Input Voltage Max (V)
100
Output Voltage Min (V)
1.5
Output Voltage Max (V)
20
IOUT (max) (mA)
100
IBIAS (min)
1.1 mA
Qualification Level
Standard
Can Sample
YES
Temperature Range
-40 to +105

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