PWM Output Temperature Sensor IC S-5855A Series

The S-5855A Series, developed by CMOS technology, is a 1-wire PWM output temperature sensor IC of low currentconsumption that itself changes the duty according to temperature. The duty decreases from 100% if exceeding the temperature set by user, and this decrease is linear against the temperaturerise. CMOS and Nch open drain are available for its output form.Its small packages SNT-4A and SOT-23-5 enable high-density mounting.


PWM output
1-wire PWM interface
Temperature accuracy
Duty change-start temperature
Selectable from +40°C to +80°C in 10°C step
Duty temperature sensitivity
Selectable from -1 %/°C to -4 %/°C in 1 %/°C step
Low current consumption
50 µA (Typ.), Ta = +25°C
Low power supply voltage
1.65 V to 5.5 V
Wide range of temperature
-40°C to +125°C
Lead-free (Sn 100%), halogen-free*1

*1. Refer to “Product Name Structure” of the data sheet for details.


  • Temperature compensation for LED instruments