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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.
FEATURES
Low power operation Low voltage operation High accuracy of detection voltage Low temperature coefficient Very small package : TYP. 1.0 A (VDD = 1.5V) : Reset operation assured at 0.8V : 2.5% : TYP. -300ppm/ (Detection voltage 2.0V) : TYP. -100ppm/ (Detection voltage 2.0V) : SOT-89, SOT-23
APPLICATION
Reset for microcomputer Battery checker Power failure detector Switching of back-up power source
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
VOLTAGE DETECTOR ELM97xxxxA
SELECTION GUIDE
Symbol Ex a, b Detection Voltage C: N: A: B: A: 09 : VDETN = 0.9V 27 : VDETN = 2.7V 45 : VDETN = 4.5V CMOS Output N-ch Opendrain Output SOT-89 SOT-23 A Version
ELM97 x x x x A abcde
c d e
Output Form Package Product Version
SERIES
Detection Output Voltage Form ELM9709NBA-S(N) 0.9V N-ch ELM9710NBA-S(N) 1.0V N-ch ELM9711NBA-S(N) 1.1V N-ch ELM9722CAA-S(N) 2.2V CMOS ELM9724CAA-S(N) 2.4V CMOS ELM9725CAA-S(N) 2.5V CMOS S type : Standard, N type : Reverse Model Package SOT-23 SOT-23 SOT-23 SOT-89 SOT-89 SOT-89 Model ELM9727CAA-S(N) ELM9730CAA-S(N) ELM9732CAA-S(N) ELM9734CAA-S(N) ELM9745CAA-S(N) ELM9748CAA-S(N) Detection Voltage 2.7V 3.0V 3.2V 3.4V 4.5V 4.8V Output Form CMOS CMOS CMOS CMOS CMOS CMOS Package SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89
* 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.
148
VOLTAGE DETECTOR ELM97xxxxA
MARKING
SOT-89
Rule 1
: Represents the integer digit of the detection voltage
Symbol A B C D E F Detection Voltage 0.*V (N-ch) 1.*V (N-ch) 2.*V (N-ch) 3.*V (N-ch) 4.*V (N-ch) 5.*V (N-ch) Symbol P R S T Detection Voltage 2.*V (CMOS) 3.*V (CMOS) 4.*V (CMOS) 5.*V (CMOS)

: Represents the decimal digit of the detection voltage
SOT-23
Symbol 0 1
Detection Voltage *.0V *.1V *.2V *.3V *.4V
Symbol 5 6 7 8 9
Detection Voltage *.5V *.6V *.7V *.8V *.9V
2 3 4
: Represents the assembly lot number A Z repeated (I,O,X excepted) : Represents the assembly lot number 0 9 repeated
Rule 2
: Represents the ELM97xxxxA series ELM97xxxxA series = A : Represents the integer digit of the detection voltage
Symbol 0 1 2 3 4 5 Symbol 0 1 2 3 4 Detection Voltage 0.*V (N-ch) 1.*V (N-ch) 2.*V (N-ch) 3.*V (N-ch) 4.*V (N-ch) 5.*V (N-ch) Detection Voltage *.0V *.1V *.2V *.3V *.4V Symbol Y W U V Detection Voltage 2.*V (CMOS) 3.*V (CMOS) 4.*V (CMOS) 5.*V (CMOS)
: Represents the decimal digit of the detection voltage
Symbol 5 6 7 8 9 Detection Voltage *.5V *.6V *.7V *.8V *.9V
: Represents the assembly lot number 0 9, A Z repeated (I,O,X excepted) *Remarks --- ELM97xxxxA series have two kind of mraking rules each package.
149
VOLTAGE DETECTOR ELM97xxxxA
BLOCK DIAGRAM
1.CMOS Output
VDD VREF + VDD VREF OUT + -
2.N-ch Opendrain Output
OUT
VSS
VSS
TIMING CHART
VDD
VDETP VDETN VopMin VSS OUT VHYS
VSS tPHL tPLH
MAXIMUM ABSOLUTE RATINGS
Parameter Power Supply Voltage Output Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Symbol VDD CMOS VOUT N-ch IOUT SOT-89 Pd SOT-23 Top Tstg Limits 10 VSS-0.3VDD+0.3 VSS-0.3+10 50 300 200 -30+80 -40+125 (VSS=0V) Units V V mA mW
150
VOLTAGE DETECTOR ELM97xxxxA
ELECTRICAL CHARACTERISTICS ELM9709NBA
Parameter Detection Voltage Hysteresis width Current Consumption Operating Voltage Output Current Delay Time Temperature Characteristics of VDETN Symbol VDETN VHYS ISS VDD IOUTN tPHL VDETN Top Conditions Min. Typ. Max. 0.922 VDETN x0.08 3.0 6.0 0.878 0.900 VDETN x0.02 VDD=1.5V 1.0 0.8 VDD=0.8V, VDS=0.5V 0.02 0.1 2.0 Top=-30+80 -0.27 (Top=25) Units Remarks V V A V mA mS mV/ 2 2 1 2 3 5 -
-
Remarks ) Test circuit No.
ELM9710NBA
Parameter Detection Voltage Hysteresis width Current Consumption Operating Voltage Output Current Delay Time Temperature Characteristic of VDETN Symbol VDETN VHYS ISS VDD IOUTN tPHL VDETN Top Conditions Min. Typ. Max. 1.025 VDETN x0.08 3.0 6.0 0.975 1.000 VDETN x0.02 VDD=1.5V 1.0 0.8 VDD=0.8V, VDS=0.5V 0.02 0.1 2.0 Top=-30+80 -0.30
(Top=25) Units Remarks V V A V mA mS mV/ 2 2 1 2 3 5 -
-
Remarks ) Test circuit No.
ELM9711NBA
Parameter Detection Voltage Hysteresis width Current Consumption Operating Voltage Output Current Delay Time Temperature Characteristic of VDETN Symbol VDETN VHYS ISS VDD IOUTN tPHL VDETN Top Conditions Min. Typ. Max. 1.127 VDETN x0.08 3.0 6.0 1.073 1.100 VDETN x0.02 VDD=1.5V 1.0 0.8 VDD=0.8V, VDS=0.5V 0.02 0.1 2.0 Top=-30+80 -0.33
(Top=25) Units Remarks V V A V mA mS mV/ 2 2 1 2 3 5 -
-
Remarks ) Test circuit No.
151
VOLTAGE DETECTOR ELM97xxxxA
ELM9722CAA
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 VDETN Top Conditions Min. Typ. Max. 2.255 VDETN x0.08 4.5 6.0 2.145 2.200 VDETN x0.02 VDD=3.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30+80 -0.22 (Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
ELM9724CAA
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 VDETN Top Conditions Min. Typ. Max. 2.460 VDETN x0.08 4.5 6.0 2.340 2.400 VDETN x0.02 VDD=3.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30+80 -0.24
(Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
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 VDETN Top Conditions Min. Typ. Max. 2.562 VDETN x0.08 4.5 6.0 2.438 2.500 VDETN x0.02 VDD=3.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30+80 -0.25
(Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
152
VOLTAGE DETECTOR ELM97xxxxA
ELM9727CAA
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 VDETN Top Conditions Min. Typ. Max. 2.767 VDETN x0.08 4.5 6.0 2.633 2.700 VDETN x0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30+80 -0.27 (Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
ELM9730CAA
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 VDETN Top Conditions Min. Typ. Max. 3.075 VDETN x0.08 4.5 6.0 2.925 3.000 VDETN x0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30+80 -0.30
(Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
ELM9732CAA
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 VDETN Top Conditions Min. Typ. Max. 3.280 VDETN x0.08 4.5 6.0 3.120 3.200 VDETN x0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30+80 -0.32
(Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
153
VOLTAGE DETECTOR ELM97xxxxA
ELM9734CAA
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 VDETN Top Conditions Min. Typ. Max. 3.485 VDETN x0.08 4.5 6.0 3.315 3.400 VDETN x0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30+80 -0.34 (Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
ELM9745CAA
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 VDETN Top Conditions Min. Typ. Max. 4.612 VDETN x0.08 4.5 6.0 4.388 4.500 VDETN x0.02 VDD=6.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=6.0V, VDS=2.1V 0.5 2.0 0.1 Top=-30+80 -0.45
(Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
ELM9748CAA
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 VDETN Top Conditions Min. Typ. Max. 4.920 VDETN x0.08 4.5 6.0 4.680 4.800 VDETN x0.02 VDD=6.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=6.0V, VDS=2.1V 0.5 2.0 0.1 Top=-30+80 -0.48
(Top=25) Units Remarks V V A V mA mA mS mV/ 2 2 1 2 3 4 5 -
-
Remarks ) Test circuit No.
154
VOLTAGE DETECTOR ELM97xxxxA
TYPICAL CHARACTERISTICS
ELM9711NxA
ISS - VDD
4 4 -30 3 3
VOUT - VDD
(3V Pullup 1M)
ISS (A)
2
25
VOUT (V)
3
80
2 25 1
1
-30
0 1 2 0
80 1 2 3
VDD (V)
VDD (V)
IOUT - VDS
1 2
IOUT - VDD
0.8
1.5 VDD=1.0V
IOUT (mA)
0.6
IOUT (mA)
80 1 25 0.5 -30 0
0.4 VDD=0.8V
0.2
0
0.2
0.4
0.6
0.8
0.6
0.8
1
1.2
1.4
VDS (V)
VDD (V)
VDET - Top
tPHL,tPLH - VDD
100
tPLH
VDET (V)
VDETP
tPHL,tPLH (ms)
1.2
10
1.1 VDETN -20 0 20 40 60 80
1
tPHL
0.1
0.001
0.01
0.1
1
Top ( )
CL (F)
155
VOLTAGE DETECTOR ELM97xxxxA
TEST CIRCUITS
1. Current Consumption 2. Detection Voltage
A
VDD VDD VDD OUT VDD R* OUT VDETN 3V ELM97 Series VSS
ELM97 Series
VSS
V
* R=1M
3. Output Current (N-ch)
4. Output Current (P-ch)
VDD
V
VDD ELM97 Series VSS
A
OUT VDS VDD
V V
VDD ELM97 Series VSS
V
OUT VDS
A
5. Delay Time
Input Pulse
3 or 6V VDD R* OUT
P.G.
ELM97 Series VSS
3V CL 0.8V
* R=1M R is unnecessary for CMOS output products.
VSS
156

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