ROHM Semiconductor introduces new small and high accuracy temperature sensor IC's

ROHM Semiconductor has introduced its new series of thermostat and analog temperature sensor families integrating a temperature detection element, constant current circuit, comparator, and high-accuracy reference voltage source in a single chip.

Additional features include open drain output and active low operation along with +/- 4°C temperature detection accuracy that eliminates the need for complicated circuit designs. The temperature detection capability is enabled by simply connecting the IC to the set substrate, saving space.

Temperature control is becoming increasingly important for stable performance as electronic products become more minimized and operate at greater speeds. For instance, power supply and motor circuits that generate heat require temperature detection in order to prevent shorts or malfunctions and possibly damage.

ROHM offers two different line-ups:

1)  The 5°C step BDEXXX0G series including 15 models
      in detection intervals of 10°C, from -20°C to +120°C,
      with 3-stage detection temperature switching possible.

2)  The 2.5°C step BDFXXX0G series features eight models 
     offered in detection intervals of 20°C from -20°C to +120°C, 
     with 9-stage detection temperature switching possible.

Both line-ups provide greater compatibility and lower processing costs.

Features of the new BDEXXX0G and BDFXXX0G families include:

• High temperature accuracy: +/- 4.0°C (e.g. BDE1200G, 
     BDF1200G: 120°C detection at +/- 5°C)
• Open drain output
• 10°C (approx.) hysteresis temperature
• Highly accurate analog output: +/- 2.5°C (at Ta= 30°C)
• Analog output temperature sensitivity: -10.68mV/°C
• Low supply current: 16.0µA (typ.)
• Small package size: 2.90 x 2.80 x 1.25mm (typ.)
• Excellent ripple rejection characteristics

ROHM’s temperature sensor ICs are suitable for a wide range of applications and for electrical equipment requiring temperature protection, such as cell phones, PCs, LCD, TVs, industrial devices, game machines, car navigation systems and the like.
 
The new temperature sensor ICs are available now.

Download Technical Note BDExxx0G Temperature Sensor IC series

For more information, or details on these items or the full range of ROHM products available from Anglia please call +44 (0)1945 474747 or email info@anglia.com

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This news article was originally published in November 2009.