ELM73 Datasheet, PDF (1/16 Pages) ELM Electronics – CMOS Voltage detector with delay circuit and Manual Reset function

ELM73xxxxxA CMOS Voltage detector with delay circuit and Manual Reset function
http://www.elm-tech.com
■General description
ELM73xxxxxA is CMOS voltage detector IC with delay function; delay time is adjustable by external
capacitor. It operates with very low current consumption; 260nA(typ.). The type with Manual Reset function
is also available in ELM73xxxBxA series; reset condition can be manually asserted at any time. There are two
output forms available; N-ch opendrain and CMOS output. The output logic is positive, therefore, the output
becomes low level when VDD is lower than detection voltage. The standard detection voltages are 2.2V, 2.7V,
3.0V and 4.0V; ELM73 series can also be made as semi-custom IC within the range of 1.4~5.0V by 0.1V step.
■Features
• Detection voltage range
: 1.4V to 5.0V (by 0.1V step)
• Low power operation
: Typ.260nA(Vdd=VdetN+1V)
• Accuracy of detection voltage : ±30mV (VdetN<2.5V)
±1.2% (VdetN≥2.5V)
• Accuracy of delay time
: Typ.15% (ExtC=4.7nF)
• Hysteresis voltage
: Typ.VdetN×1.04
• Manual reset input
: MR pin (ELM73xxxBxA only, Built-in pull-up resistor)
• Package
: SC-82AB(SOT-343), SC-70-5(SOT-353), SOT-25
■Application
• Reset for microcomputers
• Voltage power shortage detectors
• Switch of back up power source
• Battery checkers
■Maximum absolute ratings
Parameter
Power supply voltage
Symbol
Vdd
Apply voltage to OUT pin
Vout
Apply voltage to ExtC pin
Apply voltage to MR pin
Output current
VExtC
Vmr
Iout
Power dissipation
Pd
Operating temperature
Top
Storage temperature
Tstg
Limit
Unit
Vss-0.3 to 7.0
V
N-ch : Vss-0.3 to 7.0
CMOS : Vss-0.3 to Vdd+0.3
V
Vss-0.3 to Vdd+0.3
V
Vss-0.3 to Vdd+0.3
V
100
mA
250 (SOT-25)
150 (SC-82AB (SOT-343))
mW
150 (SC-70-5 (SOT-353))
-40 to +85
°C
-55 to +125
°C
16 - 1
Rev.1.2