Temperature Sensor IC Provides PWM Output Signal
By Seiko Instruments Gmbh, PRNETuesday, July 12, 2011
NEU-ISENBURG, Germany, July 13, 2011 -
- S-5855A Temperature Sensor With PWM Output Facilitates
Overheat Protection and Control
The S-5855A Series is a very new and unique 1-wire PWM output
temperature sensor IC from Seiko Instruments. Developed in CMOS
technology low current consumption of only 50microA is one of its
merits. It changes the duty cycle of a frequency, preset with a
single capacitor, according to ambient temperature. The available
temperature sensitivities which have to be determined at the time
of order are -1%/°C, -2%/°C,
-3%/°C and -4%/°C.The starting temperature at which the S-5855A
temperature sensor will start to modulate its output signal is also
determined at the time of order. It may be selected from +40°C up
to +80°C in 10°C increments. The duty cycle decreases from 100%
when the starting temperature is exceeded by the predetermined
percentage per degree C and this decrease is linear against the
temperature rise. The primary application for this integrated
circuit series is the over-temperature protection of LED lighting
as it finds use in flat TV sets and computer LCD monitors. A wide
range of applications can be found wherever equipment needs
protection against overheating and the heating power can be reduced
by reduction of the duty cycle of energy supply. This also is a
generally possible range of applications where LEDs are used to
make up for lamps or any other lighting purpose. CMOS and N-ch open
drain are available as output form. The small packages SNT-4A and
SOT-23-5 it comes in enable high-density mounting
Contact:
Paul Krisam, Technical Sales Support Manager, Components
Department, Seiko Instruments GmbH, Siemensstrasse 9, 63263
Neu-Isenburg, Germany, Tel.: +49-6102-297-143, Fax.:
+49-6102-297-50-143, Mobile: +49-172-6396-127, eMail :
, Website :
.
Tags: Germany, July 13, Neu-isenburg, Seiko Instruments GmbH
