Over Temperature Detection IC ThermoflaggerTM Application Circuit

This reference design provides design guide, data and other contents of Over Temperature Detection IC ThermoflaggerTM Application Circuit which can detect over temperature at multiple places within an equipment using PTC thermistor(s).

PCB Photo (example)
TCTH021BE TCTH021BE SSM3K35MFV SSM3K35MFV SSM3J35AMFV SSM3J35AMFV

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Features

  • Simple over temperature detection solution
  • Outline size : 85 mm x 54 mm
  • Can operate with multiple PTC thermistors

Description

Circuit topology Over Temperature Detection IC ThermoflaggerTM Application Circuit
Circuit PTC Thermistor

Design Documents

Design Documents contain the documents below.

Design Data

Design Data contains the contents listed below.

*1:Actual PCB was designed on CR5000BD. The other files were made from CR5000BD file.

*2:The data was generated on CR5000BD.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Small-signal MOSFET High side switch P-ch MOSFET, -20 V, -0.25 A, 1.4 Ω@4.5V, SOT-723(VESM)
Small-signal MOSFET Low side switch N-ch MOSFET, 20 V, 0.18 A, 3.0 Ω@4V, SOT-723(VESM)
Over Temperature Detection IC Detection IC 10 μA, Open-drain, Over temperature detection IC

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