S-5840B Series

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TEMPERATURE SWITCH IC (THERMOSTAT IC) WITH LATCH

© Seiko Instruments Inc., 2007-2012

Seiko Instruments Inc.

1

The S-5840B Series is a temperature switch IC (thermostat IC) with a latch function which detects the temperature with a

temperature accuracy of

±2.5°C. When the temperature reaches the detection temperature, the output signal is inverted and

being latched until the S-5840B Series detects decrease in a power supply voltage.

The S-5840B Series operates at the lower power supply voltage of 1.0 V and its current consumption is 12

μA typ. due to

CMOS configuration.

The S-5840B Series has a temperature sensor using negative temperature coefficient, a reference voltage generation

circuit, comparator, voltage detection circuit and noise suppression circuit on a chip, and they are enclosed in package

SOT-23-5.

Features

• Detection temperature:

• Wide voltage operation:

• Release voltage:

• Low current consumption:

• Built-in noise suppression circuit for preventing temperature detection malfunction

• Output logic level is fixed by the latch after temperature detection.

• Selectable output logic in active "H" or "L"

• Selectable output form in CMOS or Nch open drain

• Operation temperature range:

Ta =

−40°C to +100°C

*1. Refer to "

Product Name Structure" for details.

Applications

• Game console

• Electronic device

Package

• SOT-23-5