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Teilenummer | ELM9727CAA-S |
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Beschreibung | CMOS voltage detector IC for battery-operated portable devices | |
Hersteller | ETC | |
Logo | ||
Gesamt 10 Seiten ELM97xxxxA VOLTAGE DETECTOR
■ 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.
■ FEATURES
・ Low power operation
: TYP. 1.0 μ A (VDD = 1.5V)
・ Low voltage operation
: 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
■ APPLICATION
・ Reset for microcomputer
・ Battery checker
・ Power failure detector
・ Switching of back-up power source
■ PIN CONFIGURATION
SOT-89
123
( TOP VIEW )
Pin No.
1
2
3
Pin Name
OUT
VDD
VSS
3
SOT-23
12
( TOP VIEW )
Pin No.
1
2
3
Pin Name
OUT
VSS
VDD
147
VOLTAGE DETECTOR ELM97xxxxA
ELM9722CAA
Parameter
Detection Voltage
Hysteresis width
Current Consumption
Operating Voltage
Output Current
Delay Time
Temperature
Characteristic
of VDETN
ELM9724CAA
Parameter
Detection Voltage
Hysteresis width
Current Consumption
Operating Voltage
Output Current
Delay Time
Temperature
Characteristic
of VDETN
ELM9725CAA
Parameter
Detection Voltage
Hysteresis width
Current Consumption
Operating Voltage
Output Current
Delay Time
Temperature
Characteristic
of VDETN
Symbol
VDETN
VHYS
ISS
VDD
IOUTN
IOUTP
tPHL
Conditions
Min.
2.145
VDETN
×0.02
VDD=3.0V
-
0.8
VDD=1.5V, VDS=0.5V 1.0
VDD=4.5V, VDS=2.1V 0.5
Typ.
2.200
-
1.5
-
2.0
1.5
0.1
Max.
2.255
VDETN
×0.08
4.5
6.0
-
-
(Top=25℃)
Units Remarks
V2
V2
μA 1
V2
mA 3
mA 4
mS 5
△VDETN
△Top
Top=-30~+80℃
- -0.22 - mV/℃ -
Symbol
VDETN
VHYS
ISS
VDD
IOUTN
IOUTP
tPHL
Conditions
Min.
2.340
VDETN
×0.02
VDD=3.0V
-
0.8
VDD=1.5V, VDS=0.5V 1.0
VDD=4.5V, VDS=2.1V 0.5
Typ.
2.400
-
1.5
-
2.0
1.5
0.1
Remarks ) Test circuit No.
Max.
2.460
VDETN
×0.08
4.5
6.0
-
-
(Top=25℃)
Units Remarks
V2
V2
μA 1
V2
mA 3
mA 4
mS 5
△VDETN
△Top
Top=-30~+80℃
- -0.24 - mV/℃ -
Remarks ) Test circuit No.
Symbol
VDETN
VHYS
ISS
VDD
IOUTN
IOUTP
tPHL
Conditions
Min.
2.438
VDETN
×0.02
VDD=3.0V
-
0.8
VDD=1.5V, VDS=0.5V 1.0
VDD=4.5V, VDS=2.1V 0.5
Typ.
2.500
-
1.5
-
2.0
1.5
0.1
Max.
2.562
VDETN
×0.08
4.5
6.0
-
-
(Top=25℃)
Units Remarks
V2
V2
μA 1
V2
mA 3
mA 4
mS 5
△VDETN
△Top
Top=-30~+80℃
- -0.25 - mV/℃ -
Remarks ) Test circuit No.
152
6 Page | ||
Seiten | Gesamt 10 Seiten | |
PDF Download | [ ELM9727CAA-S Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
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