Seiko Instruments S-5855A
The S-5855A Series, developed by CMOS technology, is a 1-wire PWM output temperature sensor IC of low current consumption that itself changes the duty ratio according to temperature. The duty ratio decreases from 100% if exceeding the temperature set by user, and this decrease is linear against the temperature rise. The output form is selectable from CMOS output and Nch open-drain output.| Part No. | S-5855A |
|---|---|
| Datasheet | S-5855A Download |
| Manufacturer |  Seiko Instruments |
| Description | PWM OUTPUT TEMPERATURE SENSOR IC |
| Buy | Stock & Price |
FEATURES
● PWM output● Temperature accuracy
● Duty ratio change-start temperature
● Duty ratio temperature sensitivity
● Low current consumption
● Low power supply voltage
● Wide range of operation temperature
● Lead-free (Sn 100%), halogen-free : 1-wire PWM interface : ±3.0°C : Selectable from +40°C to +80°C in 10°C step : Selectable from −1 %/°C to −4 %/°C in 1 %/°C step : 50 μA typ. (Ta = +25°C) : 1.65 V to 5.5 V : Ta = −40°C to +125°C Application
● Temperature compensation for LED instruments Packages
● SNT-4A
● SOT-23-5 Seiko Instruments Inc. 1 PWM OUTPUT TEMPERATURE SENSOR IC S-5855A Series Block Diagrams 1. CMOS output product VDD *1 VSS Temperature sensor Triangle wave generator + − CF CFREQ *1. Parasitic diode 2. Nch open-drain output product Figure 1 VDD *1 VSS Temperature sensor Triangle wave generator + − CF CFREQ *1. Parasitic diode Figure 2 2 Seiko Instruments Inc. Rev.1.2_00 DOUT DOUT Rev.1.2_00 Product Name Structure 1. Product name S-5855 A x x x − xxxx U PWM...
