NJRC NJU7703 Voltage detector Datasheet

NJU7702/03
VOLTAGE DETECTOR
! GENERAL DESCRIPTION
The NJU7702/03 is a high precision and low quiescent current
voltage detector.
The detection voltage is internally fixed with an accuracy of
1.0%.
The NJU7702/03 are useful for preventing malfunction of
microcomputer or DSP etc. through detect a drop in voltage of battery
or power supply.
NJU7702 is Nch. Open Drain and NJU7703 is a C-MOS output
type.
Small packaging makes NJU7702 and NJU7703 suitable for
space conscious applications.
! FEATURES
" High Precision Detection Voltage
" Low Quiescent Current
" Detection Voltage Range
" Output Configuration
" CMOS Technology
" Package Outline
! PACKAGE OUTLINE
NJU7702/03F
±1.0%
0.8µA typ. (VDET =3V version)
1.3∼6.0V(0.1V Step)
NJU7702: Nch. Open Drain type
NJU7703: C-MOS Output type
SOT-23-5
! PIN CONFIGURATION
NJU7702/03F
5
4
1 2 3
1. NC
2. Sub (*1)
3. VSS
4. VOUT
5. VDD
(*1): Connect Sub terminal to GND.
! EQUIVALENT CIRCUIT
VDD
VDD
VOUT
VOUT
VREF
VREF
VSS
VSS
NJU7702
Ver.2005-02-28
NJU7703
-1-
NJU7702/03
! DETECTION VOLTAGE RANK LIST
3Device Name
NJU7702/03F13
NJU7702/03F27
NJU7702/03F28
NJU7702/03F03
NJU7702/03F31
NJU7702/03F42
NJU7702/03F06
VDET
1.3V
2.7V
2.8V
3.0V
3.1V
4.2V
6.0V
! NJU7702
! ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
VDD
Output Voltage
VOUT
Output Current
IOUT
Power Dissipation
PD
Operating Temperature
Topr
Storage Temperature
Tstg
(Ta=25°C)
RATINGS
+10
VSS-0.3∼+10
50
200(*2)
−40 ∼ +85
−40 ∼ +125
UNIT
V
V
mA
mW
°C
°C
(*2) : Device itself
! ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Detection Voltage
VDET
TEST CONDITION
Hysteresis Voltage
VHYS
Quiescent Current
ISS
VDD=VDET+1V
Output Current
IOUT
Nch,VDS=0.5V
VDET=1.3V∼1.7V Version
VDET=1.8V∼6.0V Version
VDD=1.2V
VDD=2.4V (≥2.7V Version)
MIN.
-1.0%
VDET
×0.03
−
−
0.75
4.5
−
TYP.
−
VDET
×0.05
0.5
0.8
2.0
7.0
−
(Ta=25°C)
MAX. UNIT
+1.0%
V
VDET
V
×0.08
1.0
µA
1.6
µA
mA
−
mA
−
0.1
µA
Output Leak Current
ILEAK
VDD=VOUT=9V
Detection
Voltage
Temperature
±100
ppm/°C
∆ VDET /∆Ta Ta=0 ∼ +85°C
−
−
Coefficient
Operating Voltage
0.8
9
V
VDD
RL=100kΩ
−
(*3)
(*3): The minimum Operating Voltage(VOPL) indicates the same value of the input voltage(VDD) on condition that VOUT
becomes 10% or less of the input voltage(VDD).
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Ver.2005-02-28
NJU7702/03
! TEST CIRCUIT
1 COMMOM TEST CIRCUIT
RL
ISS
A
VDD
V
NJU7702
VDD
VDET
/ VOPL
VOUT
V
VSS /Sub
VOUT
2 OUTPUT CURRENT/OUTPUT LEAK CURRENT TEST CIRCUIT
IOUT / ILEAK
NJU7702
VDD
VOUT
A
VDS
/ VOUT
VDD
VSS /Sub
Ver.2005-02-28
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NJU7702/03
! TYPICAL APPLICATION
1 In case of using one power supply.
VDD
RL
100kΩ
NJU7702
VDD
VOUT
CPU
Micro Processor etc.
RESET SIGNAL
INPUT
VSS /Sub
VSS
2In case of using two power supply.
VDD1
VDD2
RL
100kΩ
NJU7702
VOUT
VDD
CPU
Micro Processor etc.
RESET SIGNAL
INPUT
VSS /Sub
VSS
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Ver.2005-02-28
NJU7702/03
! NJU7703
! ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
VDD
Output Voltage
VOUT
Output Current
IOUT
Power Dissipation
PD
Operating Temperature
Topr
Storage Temperature
Tstg
RATINGS
+10
VSS-0.3 ∼ VDD+0.3
50
200(*4)
−40 ∼ +85
−40 ∼ +125
(Ta=25°C)
UNIT
V
V
mA
mW
°C
°C
(*4) : Device itself
! ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Detection Voltage
VDET
Hysteresis Voltage
VHYS
Quiescent Current
ISS
TEST CONDITION
VDD=VDET+1V
Nch,VDS=0.5V
Output Current
IOUT
Pch,VDS=0.5V
VDET=1.3V∼1.7V Version
VDET=1.8V∼6.0V Version
VDD=1.2V
VDD=2.4V (≥2.7V Version)
VDD=4.8V (≤3.9V Version)
VDD=6.0V
(4.0V∼5.6V Version)
VDD=8.4V (≥5.7V Version)
MIN.
-1.0%
VDET
×0.03
−
−
0.75
4.5
2.0
TYP.
−
VDET
×0.05
0.5
0.8
2.0
7.0
3.5
2.5
4.0
(Ta=25°C)
MAX. UNIT
+1.0%
V
VDET
V
×0.08
1.0
µA
1.6
µA
mA
−
mA
−
mA
−
−
mA
3.0
5.0
mA
−
Detection Voltage
Temperature
∆ VDET /∆Ta Ta=0 ∼ +85°C
±100
ppm/°C
−
−
Coefficient
Operating Voltage
0.8
9
V
VDD
RL=100kΩ
−
(*5)
(*5): The minimum Operating Voltage(VOPL) indicates the same value of the input voltage(VDD) on condition that VOUT
becomes 10% or less of the input voltage(VDD).
Ver.2005-02-28
-5-
NJU7702/03
! TEST CIRCUIT
1 COMMON TEST CIRCUIT
ISS
A
VDD
V
NJU7703
VOUT
VDD
VDET
V
VSS /Sub
VOUT
2 Nch OUTPUT CURRENT TEST CIRCUIT
IOUT
NJU7703
VOUT
VDD
A
VDD
VDS
VSS /Sub
3 Pch OUTPUT CURRENT TEST CIRCUIT
VDS
NJU7703
IOUT
VOUT
VDD
A
VDD
VSS /Sub
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Ver.2005-02-28
NJU7702/03
4 MINUMUM OPERATING VOLTAGE TEST CIRCUIT
RL
NJU7703
VOUT
VDD
VDD
V
VOPL
V
VOUT
VSS /Sub
! TYPICAL APPLICATION
VDD
CPU
Micro Processor etc.
NJU7703
VOUT
VDD
RESET SIGNAL
INPUT
VSS /Sub
VSS
Ver.2005-02-28
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NJU7702/03
! FUNCTIONAL DESCRIPTION
(1) Basic operation
Supply voltage
(VDD)
Detection voltage
(VDET)
Minimum operation
voltage (VOPL)
VSS
Output voltage
(VOUT)
Hysteresis voltage
(VHYS)
Release voltage
(VDET + VHYS)
(1) When supply voltage(VDD) drops below
detection voltage(VDET), Output voltage(VOUT)
changes "H" to "L" to alert reset state.
(2) The reset state is kept while VDD is lower than
release voltage. The release voltage is a sum
of VDET and Hysterisis voltage (VHYS). Please
refer to the (*7) below.
(3) When VDD becomes higher than the release
voltage, then VOUT changes from "L" to "H" to
resume normal state.
(*7) VHYS is to avoid unstable VOUT state caused
by rapid voltage change at nearby VDET.
VSS
(*8): C-MOS output product (NJU7703) : When VDD less than VOPL, VOUT is free of the shaded region.
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
-8-
Ver.2005-02-28
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