The NCP112 is a highly integrated supervisory circuit that incorporates all the functions necessary for monitoring and controlling a multi-output switch-mode power supply system. It provides an ability to monitor the status of the power supply outputs and communicate it to the system controller. The programmable output delays protect against spurious fault indicators.
The NCP112 is a highly integrated supervisory circuit designed for monitoring and controlling multi-output switch-mode power supply systems. It incorporates functions such as over and undervoltage protection for 3.3 V, 5.0 V, and 12 V outputs, along with additional adjustable overvoltage protection. The device includes built-in hysteresis on all input pins and programmable undervoltage blanking during power-up.
| Power Supply Voltage | 4.5 to 16 V |
|---|---|
| Operating Junction Temperature | +150 °C |
| Operating Ambient Temperature | -40 to +125 °C |
| Fault Sink Current | 20 mA |
| Undervoltage Blanking Time (100 nF) | 100 to 500 ms |
The NCP112 provides over and undervoltage protection for 3.3 V, 5.0 V, and 12 V outputs.
The maximum power supply voltage is 18 V.
The maximum operating junction temperature is +150 °C.
The fault output can sink a maximum of 20 mA.