NS LM57CISD-10/NOPB

ГорячаяПрограммируемый±2.3°C

Overview

The LM57CISD-10/NOPB device is a precision, dual-output, temperature switch with analog temperature sensor output for wide temperature industrial applications. The trip temperature (TTRIP) is selected from 256 possible values in the range of –40°C to +150°C. The VTEMP is a class AB analog voltage output that is proportional to temperature with a programmable negative temperature coefficient (NTC). Two external 1% resistors set the TTRIP and VTEMP slope. The digital and analog outputs enable protection and monitoring of system thermal events.

Built-in thermal hysteresis (THYST) prevents the digital outputs from oscillating. The TOVER andTOVER, confirming they changed to an active state. This allows for in-situ verification that the comparator and output circuitry are functional after system assembly. When TRIP-TEST is high, the trip-level reference voltage appears at the VTEMP pin. The system could then use this voltage to calculate the threshold of the LM57.

Features

Bulk Package
Hot Trip Temperature Threshold
Programmable Switching Temperature
±2.3°C Accuracy
Active High, Active Low Output
OverTemp, /OverTemp Output Function
Yes Selectable Hysteresis
Selectable Trip Point, Trip Test Features
2.4 V ~ 5.5 V Voltage - Supply
24µA Current - Supply
Surface Mount Mounting Type