TCTH021AE,LF(CT

TCTH021AE,LF(CT is a TCTH0xxxE series Thermoflagger™ (over temperature detection IC). This CMOS process IC outputs abnormal-state signal on detecting over temperature as the resistor value changing of external PTC thermistor. The output current to PTC thermistor is 1μA (typ.) and whole current consumption is 1.8μA (typ.), low consumption operation is realised. Also, selectable auto retry type if PTC thermistor temperature goes down back to lower than threshold, or latch the abnormal signal type. The application includes notebook PC, mobile equipment, home appliance, Industry equipment etc. for over temperature detection.

• Selectable PTCO output current
• High PTCO output current accuracy
• Low current consumption
• 10μA typical PTCO output current
• Push-pull output type
• Supply voltage range from 1.7 to 5.5V
• 0.50V typical detect voltage (VDD = 3.3V, Tj = 25°C)
• 0.1V typical hysteresis voltage (VDD = 3.3V, Tj = 25°C)
• 0.04μA typical pull-down current at RESET pin (Tj = 25°C, VDD = 3.3V)
• Operation temperature range from -40 to 125°C, ESV (SOT-553) package