S-5840B

S-5840B Series www.sii-ic.com TEMPERATURE SWITCH IC (THERMOSTAT IC) WITH LATCH © Seiko Instruments Inc., 2007-2012 Rev.2.1_00 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: TDET = +55 to +95°C, +1°C step, detection accuracy: ±2.5°C Wide voltage operation: VDD = 1.0 V to 10.0 V Release voltage: VRET = 2.2 V to 3.4 V, 0.1 V step Low current consumption: IDD = 12 μA typ. (Ta = +25°C). 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 Lead-free, Sn 100%, halogen-free*1 *1. Refer to "„ Product Name Structure" f...