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NJM2103D

P1-P3P4-P6P7-P8
NJM2103
-
1
-
Ver.2012-07-09
1
2
3
4
5
6
7
8
+
-
+
-
Comp.B
Comp.A
100kΩ
40kΩ
+-
+
-
R
S
Q
+-
Reference Voltage
10µA 6µA
Comp.C
1.235V 1.235V
V
+
V
SC
GND
OUT
C
RESETC
T
V
SB
/ RESIN
V
SA
SYSTEM RESET IC
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
NJM2103 is supply voltage supervisory IC to detect the abnormal
conditions, such as shut down of all supply voltages at once, or sudden
voltage down and then generate the reset signal. It supervises both 5V
supply voltage and the voltage optionally set up.
■ FEATURES
● Precise Detection of Supply Voltage Down (V
SA
=4.2V±2.5%)
● Possible Detection of Optional Voltage Down (V
SB
=1.22V±1.5%)
● Possible Detection of Optional Over-loading
● Low Operating Current (I
CC
≦560µA@V
SB
=5V)
● Reference Voltage can be taken out.
● Low Reset Validated Voltage (V
+
=0.8V Typ.)
● Voltage Detection with Hystersis Feature
● Package Outline DIP8, DMP8, SIP8
● Bipolar Technology
■ PIN CONFIGURATION
■ BLOCK DIAGRAM
NJM2103D NJM2103M
NJM2103L
PIN FUNCTION
1. C
T
2. V
SC
3. OUT
C
4. GND
5. V
+
6. V
SB
/RESIN
7. V
SA
8.
RESET
NJM2103D
NJM2103M
NJM2103L
NJM2103
-
2
-
Ver.2012-07-09
■ ABSOLUTE MAXIMUM RATINGS (T
a
=25°C)
PARAMETER SYMBOL RATINGS UNIT
Supply Voltage V
+
20 V
Power Dissipation P
D
(DIP8) 500 mW
(DMP8) 300 mW
(SIP8) 800 mW
Input Voltage A V
SA
V
+
+0.3 (<20) V
Input Voltage B V
SB
20 V
Input Voltage C V
SC
20 V
Operating Temperature Range T
opr
-40 to +85 °C
Storage Temperature Range T
stg
-40 to +125 °C
■ ELECTRICAL CHARACTERISTICS
● DC CHARACTERISTICS
(V
+
=5.0V, V
SB
=0V, V
SC
=0V, T
a
=25°C)
PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT
Operating Current (1) I
CC1
V
SB
=5V - 380 560 µA
Operating Current (2) I
CC2
- 460 700 µA
V
SA
Detecting Voltage (1) V
SAL
V
+
fall time V
SB
=V
+
4.10 4.20 4.30 V
V
SA
Detecting Voltage (2) V
SAH
V
+
rise time V
SB
=V
+
4.20 4.30 4.40 V
V
SA
Hysterisis Width V
HRSA
50 100 150 mV
V
SB
Detecting Voltage V
SBL
V
SB
fall time 1.202 1.220 1.238 V
V
SB
Dtetecting Supply Voltage Fluctuation ∆V
SBL
V
+
=3.5 to 18V - 3 10 mv
V
SB
Hysterisis Width V
HRSB
14 28 42 mV
V
SB
Input Current (1) I
IHB
V
SB
=5V - 0 250 nA
V
SB
Input Current (2) I
ILB
- 20 250 nA
High Level
RESET
Output Voltage
V
OHR
I
RESET
=-5µA, V
SB
=5V
4.5 4.9 - µV
RESET
Output Saturating Voltage (1)
V
OLR1
I
RESET
=2mA
- 0.20 0.40 V
RESET
Output Saturating Voltage (2)
V
OLR2
I
RESET
=10mA
- 0.30 0.50 V
RESET
Output Sink Current
I
RESET
V
OLR
=1.0V 20 80 - mA
C
T
Charge Current I
CT
V
SB
=5V, VCT=0.5V 6.0 9.5 13.0 µA
V
SC
Input Current (1) I
IHC
V
SC
=5V - 0 500 nA
V
SC
Input Current (2) I
ILC
- 50 500 nA
V
SC
Detecting Voltage V
SC
1.215 1.235 1.255 V
V
SC
Detecting Supply Voltage Fluctuation ∆V
SC
V
+
=3.5 to 13.5V - 3 10 mV
OUT
C
Output Leak Current I
OHC
V
OHC
=13.5V - 0 1 µA
OUT
C
Output Saturation Voltage V
OLC
I
OUT
=4mA, V
SC
=5V - 0.10 0.40 V
OUT
C
Output Sink Current I
OUTC
V
OLC
=1.0V, V
SC
=5V 6 20 - mA
RESET
Guarantee Minimum Supply Voltage
V
+
L
V
OLR
=0.4V, I
RESET
=200µA
- 0.8 1.2 V
● AC CHARACTERISTICS (V
+
=5.0V, V
SB
=5.0V, V
SC
=0V, C
T
=0.01µF, T
a
=25°C)
ITEM SYMBOL CONDITION MIN. TYP. MAX. UNIT
V
SA
Input Pulse Width t
PIA
- 3.0 - µs
V
SB
Input Pulse Width t
PIB
- 1.5 - µs
RESET
Output Pulse Width
t
PO
V
SB
=V
+
- 1.5 - ms
RESET
Rise Time
t
r
V
SB
=V
+
, R
L
=2.2kΩ, C
I
=100pF - 1.0 - µs
RESET
Fall Time
t
f
V
SB
=V
+
, R
L
=2.2kΩ, C
L
=100pF - 0.1 - µs
Output Delay Time t
PD
V
SB
fall time - 2 - µs
Output Delay Time t
PHL
V
SC
rise time, R
L
=2.2kΩ, C
L
=100pF - 0.5 - µs
Output Delay Time t
PLH
V
SC
fall time, R
L
=2.2kΩ, C
L
=100pF - 1.0 - µs
NJM2103
-
3
-
Ver.2012-07-09
■ TERMINAL FUNCTION
PIN NO. SYMBOL FUNCTION INSIDE EQUIVALENT CIRCUIT
1 C
T
Pin Connection to Capacitor,
Set the reset holding time.
2 V
SC
Comparator Input
3 OUT
C
Open Collector Output of
Comparator C.
P1-P3P4-P6P7-P8

NJM2103D

Mfr. #:
Buy NJM2103D
Manufacturer:
NJR (New Japan Radio)
Description:
Supervisory Circuits Signal Generator
Lifecycle:
New from this manufacturer.
Delivery:
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