ELM73 Datasheet PDF - ELM
| Part Number | ELM73 | |
| Description | CMOS Voltage detector | |
| Manufacturers | ELM | |
| Logo |  |
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ELM73xxxxxA CMOS Voltage detector with delay circuit and Manual Reset function
■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
Storage temperature
Top
Tstg
Limit
Vss-0.3 to 7.0
N-ch : Vss-0.3 to 7.0
CMOS : Vss-0.3 to Vdd+0.3
Vss-0.3 to Vdd+0.3
Vss-0.3 to Vdd+0.3
100
250 (SOT-25)
150 (SC-82AB (SOT-343))
150 (SC-70-5 (SOT-353))
-40 to +85
-55 to +125
Unit
V
V
V
V
mA
mW
°C
°C
16 - 1
Rev.1.1
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ELM73xxxxxA CMOS Voltage detector with delay circuit and Manual Reset function
■Electrical characteristics
ELM7322xxxA
Top=25°C
Parameter
Symbol
Condition
Min. Typ. Max. Unit Note*1
Detection voltage
VdetN
2.170 2.200 2.230 V
1
Hysteresis width
Vhys
VdetN× VdetN× VdetN×
0.02 0.04 0.08
V
1
Current consumption
Iss Vdd=3.2V
0.26 0.80 μA
2
Power voltage
Vdd
0.8 6.0 V 1
Output current
IoutN1 Vdd=0.8V, Vds=0.4V
IoutN2 Vdd=1.0V, Vds=0.4V
0.01 0.50
0.50 2.50
mA 3-(1)
IoutP*2 Vdd=3.0V, Vds=0.4V
0.60 1.90
mA 3-(2)
Leakage current
Ileak Vdd=VLX=6.0V
0.1 μA 4
Delay time
tPLH Vdd=1.0V to 3.2V, Cex=4.7nF 22.1 26.0*3 29.9
tPHL Vdd=3.2V to 1.0V
30
ms
μs
5
MR voltage High
VmrH Vdd=6.0V
1.2 V 6
MR voltage Low
VmrL Vdd=2.7V
0.3
6
MR pull-up resistance Rmr Vdd=3.2V
1 3 6 MΩ 7
Temperature
ΔVdetN
characteristic of VdetN ΔTop
±30 ppm/°C
* 1. Note: test circuit No.,
2. IoutP is only applied to CMOS output products.
3. tPLH(typ.) is derived by using Cex from the following formula: tPLH(typ.)[ms]=5.532×Cex[nF].
ELM7327xxxA
Top=25°C
Parameter
Symbol
Condition
Min. Typ. Max. Unit Note*1
Detection voltage
VdetN
2.668 2.700 2.732 V
1
Hysteresis width
Vhys
VdetN× VdetN× VdetN×
0.02 0.05 0.08
V
1
Current consumption Iss Vdd=3.7V
0.26 0.80 μA
2
Power voltage
Vdd
0.8 6.0 V 1
Output current
IoutN1 Vdd=0.8V, Vds=0.4V
IoutN2 Vdd=1.0V, Vds=0.4V
0.01 0.50
0.50 2.50
mA 3-(1)
IoutP*2 Vdd=4.5V, Vds=0.4V
0.80 2.30
mA 3-(2)
Leakage current
Ileak Vdd=VLX=6.0V
0.1 μA 4
Delay time
tPLH Vdd=1.0V to 3.7V, Cex=4.7nF 22.1 26.0*3 29.9
tPHL Vdd=3.7V to 1.0V
30
ms
μs
5
MR voltage High
VmrH Vdd=6.0V
1.2 V 6
MR voltage Low
VmrL Vdd=3.2V
0.3
6
MR pull-up resistance Rmr Vdd=3.7V
1 3 6 MΩ 7
Temperature
ΔVdetN
characteristic of VdetN ΔTop
±30 ppm/°C
* 1. Note: test circuit No.,
2. IoutP is only applied to CMOS output products.
3. tPLH(typ.) is derived by using Cex from the following formula: tPLH(typ.)[ms]=5.532×Cex[nF].
16 - 5
Rev.1.1
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ELM73 electronic component. |
| Information | Total 16 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ELM73.PDF Datasheet ] | |
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