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Электронный компонент: ELM9724CAA-S

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147
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 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 No.
Pin Name
1
OUT
2
VDD
3
VSS
ELM97xxxxA
ELM97xxxxA
ELM97xxxxA
ELM97xxxxA
ELM97xxxxA
VOLTAGE DETECTOR
Pin No.
Pin Name
1
OUT
2
VSS
3
VDD
PIN CONFIGURATION
1
2
3
( TOP VIEW )
SOT-89
1
2
3
( TOP VIEW )
SOT-23
148
VOLTAGE DETECTOR ELM97xxxxA
SELECTION GUIDE
Symbol
Ex
09 : VDETN = 0.9V
27 : VDETN = 2.7V
45 : VDETN = 4.5V
C :
CMOS Output
N :
N-ch Opendrain Output
A :
SOT-89
B :
SOT-23
e
Product Version
A : A Version
d
Package
a, b
Detection Voltage
c
Output Form
ELM97 x x x x A
ELM97 x x x x A
ELM97 x x x x A
ELM97 x x x x A
ELM97 x x x x A
a b c d e
a b c d e
a b c d e
a b c d e
a b c d e
SERIES
Detection Output Detection Output
Voltage
Form
Voltage
Form
ELM9709NBA-S(N)
0.9V
N-ch
SOT-23 ELM9727CAA-S(N)
2.7V
CMOS SOT-89
ELM9710NBA-S(N)
1.0V
N-ch
SOT-23 ELM9730CAA-S(N)
3.0V
CMOS SOT-89
ELM9711NBA-S(N)
1.1V
N-ch
SOT-23 ELM9732CAA-S(N)
3.2V
CMOS SOT-89
ELM9722CAA-S(N)
2.2V
CMOS SOT-89 ELM9734CAA-S(N)
3.4V
CMOS SOT-89
ELM9724CAA-S(N)
2.4V
CMOS SOT-89 ELM9745CAA-S(N)
4.5V
CMOS SOT-89
ELM9725CAA-S(N)
2.5V
CMOS SOT-89 ELM9748CAA-S(N)
4.8V
CMOS SOT-89
S type : Standard, N type : Reverse
Model
Package
Model
Package
* Available 0.9V5.0V detection voltage for N-ch output and 2.0V5.0V detection voltage for CMOS
output at 0.1V step as semi-custom-made IC.
149
VOLTAGE DETECTOR ELM97xxxxA
MARKING
SOT-89
SOT-23
Rule 2
: Represents the ELM97xxxxA series
ELM97xxxxA series = A
: Represents the integer digit of the detection voltage
: Represents the decimal digit of the detection voltage
: Represents the assembly lot number
0 9, A Z repeated (I,O,X excepted)
Symbol
Detection Voltage
Symbol
Detection Voltage
0
0.*V (N-ch)
Y
2.*V (CMOS)
1
1.*V (N-ch)
W
3.*V (CMOS)
2
2.*V (N-ch)
U
4.*V (CMOS)
3
3.*V (N-ch)
V
5.*V (CMOS)
4
4.*V (N-ch)
5
5.*V (N-ch)
Symbol
Detection Voltage
Symbol
Detection Voltage
0
*.0V
5
*.5V
1
*.1V
6
*.6V
2
*.2V
7
*.7V
3
*.3V
8
*.8V
4
*.4V
9
*.9V
Rule 1
: Represents the integer digit of the detection voltage
: Represents the decimal digit of the detection voltage
: Represents the assembly lot number
A Z repeated (I,O,X excepted)
: Represents the assembly lot number
0 9 repeated
Symbol
Detection Voltage
Symbol
Detection Voltage
A
0.*V (N-ch)
P
2.*V (CMOS)
B
1.*V (N-ch)
R
3.*V (CMOS)
C
2.*V (N-ch)
S
4.*V (CMOS)
D
3.*V (N-ch)
T
5.*V (CMOS)
E
4.*V (N-ch)
F
5.*V (N-ch)
Symbol
Detection Voltage
Symbol
Detection Voltage
0
*.0V
5
*.5V
1
*.1V
6
*.6V
2
*.2V
7
*.7V
3
*.3V
8
*.8V
4
*.4V
9
*.9V
*Remarks --- ELM97xxxxA series have two kind of mraking rules each package.
150
VOLTAGE DETECTOR ELM97xxxxA
TIMING CHART
BLOCK DIAGRAM
1.CMOS Output
2.N-ch Opendrain Output
VREF
VDD
OUT
VSS
+
-
VDD
VSS
VREF
+
-
OUT
VDETN
VHYS
VopMin
tPHL
tPLH
VSS
VSS
VDETP
VDD
OUT
MAXIMUM ABSOLUTE RATINGS
(VSS=0V)
Parameter
Limits
Units
Power Supply Voltage
10
V
CMOS
VSS-0.3VDD+0.3
N-ch
VSS-0.3+10
Output Current
50
mA
SOT-89
300
SOT-23
200
Operating Temperature
-30+80
Storage Temperature
-40+125
Output Voltage
Power Dissipation
VOUT
Pd
Symbol
VDD
IOUT
Top
Tstg
V
mW
151
VOLTAGE DETECTOR ELM97xxxxA
ELM9709NBA
ELM9709NBA
ELM9709NBA
ELM9709NBA
(Top=25)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units Remarks
Detection Voltage
VDETN
0.878
0.900
0.922
V
2
VDETN
VDETN
0.02
0.08
Current Consumption
ISS
VDD=1.5V
-
1.0
3.0
A
1
Operating Voltage
VDD
0.8
-
6.0
V
2
Output Current
IOUTN
VDD=0.8V, VDS=0.5V
0.02
0.1
-
mA
3
Delay Time
tPHL
2.0
mS
5
Temperature
Characteristics
of VDETN
Remarks ) Test circuit No.
2
-
Top=-30+80
-
-0.27
-
Hysteresis width
VHYS
mV/
-
V
VDETN
Top
ELM9710NBA
ELM9710NBA
ELM9710NBA
ELM9710NBA
(Top=25)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units Remarks
Detection Voltage
VDETN
0.975
1.000
1.025
V
2
VDETN
VDETN
0.02
0.08
Current Consumption
ISS
VDD=1.5V
-
1.0
3.0
A
1
Operating Voltage
VDD
0.8
-
6.0
V
2
Output Current
IOUTN
VDD=0.8V, VDS=0.5V
0.02
0.1
-
mA
3
Delay Time
tPHL
2.0
mS
5
Temperature
Characteristic
of VDETN
Remarks ) Test circuit No.
V
2
-
Hysteresis width
VHYS
VDETN
Top
-
mV/
-
Top=-30+80
-
-0.30
ELM9711NBA
ELM9711NBA
ELM9711NBA
ELM9711NBA
(Top=25)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units Remarks
Detection Voltage
VDETN
1.073
1.100
1.127
V
2
VDETN
VDETN
0.02
0.08
Current Consumption
ISS
VDD=1.5V
-
1.0
3.0
A
1
Operating Voltage
VDD
0.8
-
6.0
V
2
Output Current
IOUTN
VDD=0.8V, VDS=0.5V
0.02
0.1
-
mA
3
Delay Time
tPHL
2.0
mS
5
Temperature
Characteristic
of VDETN
Remarks ) Test circuit No.
V
2
Hysteresis width
-
VHYS
VDETN
Top
mV/
-
Top=-30+80
-
-0.33
-
ELECTRICAL CHARACTERISTICS