Document
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.
PACKAGE OUTLINE NJU7702/03F
FEATURES High Precision Detection Voltage Low Quiescent Current Detection Voltage Range Output Configuration
CMOS Technology Package Outline
±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
54 123
1. NC
2. Sub (*1)
3. VSS 4. VOUT 5. VDD
(*1): Connect Sub terminal to GND.
EQUIVALENT CIRCUIT
VDD
VDD
VREF
VSS
NJU7702
VOUT
VREF
VSS
NJU7703
VOUT
Ver.2006-02-23
-1-
NJU7702/03
DETECTION VOLTAGE RANK LIST
3Device Name NJU7702/03F13
VDET 1.3V
NJU7702/03F27 2.7V
NJU7702/03F28 2.8V
NJU7702/03F03 3.0V
NJU7702/03F31 3.1V
NJU7702/03F42 4.2V
NJU7702/03F06 6.0V
NJU7702
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage Output Voltage Output Current Power Dissipation Operating Temperature Storage Temperature
VDD VOUT IOUT PD Topr
Tstg
(*2) : Device itself
RATINGS
+10 VSS-0.3∼+10
50 200(*2) −40 ∼ +85 −40 ∼ +125
(Ta=25°C)
UNIT
V V mA mW °C °C
ELECTRICAL CHARACTERISTICS
(Ta=25°C)
PARAMETER Detection Voltage
SYMBOL VDET
TEST CONDITION
Hysteresis Voltage
VHYS
Quiescent Current
ISS VDD=VDET+1V
Output Current
IOUT Nch,VDS=0.5V
Output Leak Current
ILEAK
VDD=VOUT=9V
Detection Voltage
Temperature Coefficient
∆ VDET /∆Ta Ta=0 ∼ +85°C
Operating Voltage (*3)
VDD RL=100kΩ
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 −
MAX. +1.0% VDET ×0.08
1.0
1.6
− − 0.1
UNIT V
V
µA µA mA mA µA
− ±100 − ppm/°C
0.8 − 9 V
(*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).
-2-
Ver.2006-02-23
TEST CIRCUIT 1 COMMOM TEST CIRCUIT
ISS NJU7702
A VDD
VOUT
VDD
V
VDET / VOPL
VSS /Sub
NJU7702/03
RL V VOUT
2 OUTPUT CURRENT/OUTPUT LEAK CURRENT TEST CIRCUIT
NJU7702
IOUT / ILEAK
VDD
VOUT
A
VDD VSS /Sub
VDS / VOUT
Ver.2006-02-23
-3-
NJU7702/03
TYPICAL APPLICATION 1 In case of using one power supply. VDD
NJU7702
VDD
VOUT
RL
100kΩ
CPU Micro Processor etc.
RESET SIGNAL INPUT
VSS /Sub VSS 2In case of using two power supply.
VDD1 VSS
VDD2
NJU7702
VDD
VOUT
RL
100kΩ
CPU Micro Processor etc.
RESET SIGNAL INPUT
VSS /Sub
-4-
Ver.2006-02-23
NJU7702/03
NJU7703
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage Output Voltage Output Current Power Dissipation Operating Temperature Storage Temperature
SYMBOL
VDD VOUT IOUT PD Topr
Tstg
(*4) : Device itself
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
ELECTRICAL CHARACTERISTICS
(Ta=25°C)
PARAMETER Detection Voltage Hysteresis Voltage
Quiescent Current
Output Current
Detection Voltage Temperature Coefficient Operating Voltage (*5)
SYMBOL VDET VHYS ISS
IOUT
TEST CONDITION
VDD=VDET+1V Nch,VDS=0.5V
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)
∆ VDET /∆Ta Ta=0 ∼ +85°C
VDD RL=100kΩ
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
MAX. +1.0% VDET ×0.08
1.0 1.6
− − −
UNIT V
V
µA µA mA mA mA
2.5 4.0 − mA
3.0 5.0 − mA
− ±100 − ppm/°C
0.8 − 9 V
(*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.2006-02-23
-5-
NJU7702/03
TEST CIRCUIT 1 COMMON TEST CIRCUIT
ISS NJU7703
A VDD
VOUT
VDD
V VDET
VSS /Sub
V VOUT
2 Nch OUTPUT CURRENT TEST CIRCUIT
NJU7703
IOUT
VDD
VOUT
A
VDD VSS /Sub
VDS
3 Pch OUTPUT CURRENT TEST CIRCUIT
VDS
NJU7703
VDD
VOUT
IOUT
A
VDD VSS /Sub
-6-
Ver.2006-02-23
4 MINUMUM OPERATING VOLTAGE TEST CIRCUIT
NJU7702/03
NJU7703
VDD
VOUT
RL
VDD
V VOPL
VSS /Sub
V VOUT
TYPICAL APPLICATION VDD
VSS
NJU7703
VDD
VOUT
VSS /Sub
CPU Micro Processor etc.
RESET SIGNAL INPUT
Ver.2006-02-23
-7-
NJU7702/03
FUNCTIONAL DESCRIPTION (1) Basic operation
Supply voltage (VDD)
Detection voltage (VDET)
Hysteresis voltage (VHYS)
Minimum operation voltage (VOPL)
VSS
Output voltage (VOUT)
Release voltage (VDET+ VHYS)
(1) When supply voltage(VDD) drops below detection voltage(VDET), Output voltage(VOUT) changes "H" to "L" to alert reset.