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GENERAL DESCRIPTION

ELM 97xxxxA Series is a CMOS voltage detector IC for battery-operated portable devices. It consists of a

very low-power-consumption reference voltage source, a comparator, an output driver, a hysteresis circuit,

and detection voltage setting resistors. Output logic is positive, therefore output level is low when VDD is

lower than detection voltage.

It can be used as a reset controller in microcomputer-based systems. And it can be widely applied to the

devices, such as battery checkers, switching circuit of back-up power source, power failure detectors, etc.

Two output styles are available, N-ch opendrain and CMOS output.

It is available in SOT-89 and SOT-23.

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FEATURES

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Low power operation

: TYP. 1.0 μ A (VDD = 1.5V)

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Low voltage operation

: Reset operation assured at 0.8V

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High accuracy of detection voltage : ± 2.5%

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Low temperature coefficient

: TYP. -300ppm/℃ (Detection voltage ＜2.0V)

: TYP. -100ppm/℃ (Detection voltage ≧2.0V)

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Very small package

: SOT-89, SOT-23

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APPLICATION

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Reset for microcomputer

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Battery checker

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Power failure detector

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Switching of back-up power source

Pin No.

Pin Name

1

OUT

2

VDD

3

VSS

ELM97xxxxA

ELM97xxxxA

ELM97xxxxA

ELM97xxxxA

Pin No.

Pin Name

1

OUT

2

VSS

3

VDD

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PIN CONFIGURATION

1

23

( TOP VIEW )

SOT-89

1

2

3

( TOP VIEW )

SOT-23