ELM97xxxxA
■
GENERAL DESCRIPTION
VOLTAGE DETECTOR
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
・
Low power operation
・
Low voltage operation
: TYP. 1.0
μ
A (VDD = 1.5V)
: Reset operation assured at 0.8V
・
High accuracy of detection voltage :
±
2.5%
・
Low temperature coefficient
: TYP.
-300ppm/℃
(Detection voltage
<
2.0V)
: TYP.
-100ppm/℃
(Detection voltage
≧
2.0V)
・
Very small package
: SOT-89, SOT-23
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APPLICATION
・
Reset for microcomputer
・
Battery checker
・
Power failure detector
・
Switching of back-up power source
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PIN CONFIGURATION
SOT-89
3
SOT-23
1
2
3
1
2
( TOP VIEW )
( TOP VIEW )
Pin No.
1
2
3
Pin Name
OUT
VDD
VSS
Pin No.
1
2
3
Pin Name
OUT
VSS
VDD
147