RESET IC. NJU7295 Datasheet

NJU7295 IC. Datasheet pdf. Equivalent

NJU7295 Datasheet
Recommendation NJU7295 Datasheet
Part NJU7295
Description SYSTEM RESET IC
Feature NJU7295; NJU7295 SYSTEM RESET IC WITH DELAY CIRCUIT ■ GENERAL DESCRIPTION The NJU7295 is a system reset IC .
Manufacture New Japan Radio
Datasheet
Download NJU7295 Datasheet




New Japan Radio NJU7295
NJU7295
SYSTEM RESET IC WITH DELAY CIRCUIT
GENERAL DESCRIPTION
The NJU7295 is a system reset IC with built-in delay circuit that
monitors the status of a power line, and outputs a reset signal to
the microcomputer.
The NJU7295 outputs a reset signal when exceeds the detection
voltage. Therefore it is possible to control the microcomputer by
detecting a rising edge of a power line.
Delay times are fixed internally and those are set in each of rising
and falling.
It is possible to monitor multiplex power line by combination of
NJU7295 because output voltage VOUT is kept High level when
EXT Pin is Low level by connecting with other NJU7295.
Detection voltage’s default value is 1.0V. It can be adjusted to
desired voltage by the resistor divider.
In addition, a hysteresis voltage can be set arbitrarily by inserting a
resistor between the VIN pin and the HYS pin.
PACKAGE OUTLINE
NJU7295F1
FEATURES
High Precision Detection Voltage
Detection Voltage
Reset Output Logic
Delay Circuit (Internal Fixed type)
Ultra Low Quiescent Current
Supply Voltage Range
External Input Pin
Adjustable Hysteresis Voltage
Output Type
Package
1.0% (Ta=25 C)
1.0V (default) and adjustable with external resistor
Reset Low output when VIN pin is detection voltage or more
*If required reset low output when VIN pin is detection voltage or below, see the
NJU7296.
Rising / Falling independent setting
1.7µA typ.
1.5 to 5.5V
While inputting low signal, keep output High level
CMOS output
SOT-23-6-1
PIN CONFIGURATION
VIN 1
VSS 2
EXT 3
6 HYS
5 VOUT
4 VDD
Pin Function
1. VIN
2. VSS
3. EXT
Input Voltage Pin
Ground Pin
External Input Pin
4. VDD
5. VOUT
6. HYS
Supply Voltage Pin
Output Pin
External Resistor Pin for setting Hysteresis Voltage
Ver.2015-11-11
-1-



New Japan Radio NJU7295
NJU7295
BLOCK DIAGRAM
VDD HYS
VIN
Delay
Circuit
VOUT
VSS EXT
PRODUCT CLASSFICATION
Device Name Version Delay Time1(Typ.) Delay Time2(Typ.)
NJU7295F1-A
NJU7295F1-A-T
A
10ms
1.25ms
NJU7295F1-B
NJU7295F1-B-T
B
20ms
10ms
NJU7295F1-C
NJU7295F1-C-T
C
10ms
10ms
NJU7295F1-D
NJU7295F1-D-T
D
10ms
30µs
Spec Guarantee
25 C
(General Spec.)
-40 C to +105 C (T Spec.)
25 C
(General Spec.)
-40 C to +105 C (T Spec.)
25 C
(General Spec.)
-40 C to +105 C (T Spec.)
25 C
(General Spec.)
-40 C to +105 C (T Spec.)
ABSOLUTE MAXIMUM RATINGS
(Ta=25 C)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
Input Voltage
Output Voltage
HYS Pin Voltage
EXT Pin Input Voltage
Output Current
HYS Pin Current
Power Dissipation
VDD
VIN
VOUT
VHYS
VEXT
IOUT
IHYS
PD
+7
VSS-0.3 to +7
VSS-0.3 to VDD+0.3
VSS-0.3 to VDD+0.3
VSS-0.3 to VDD+0.3
50
10
SOT-23-6-1
410(*1)
580(*2)
V
V
V
V
V
mA
mA
mW
Surge Current
Operating Temperature
Storage Temperature
IIN_SRG
Topr
Tstg
±2.5(*3)
-40 to +105
-40 to +125
mA
C
C
(*1): Mounted on glass epoxy board. (76.2 114.3 1.6mm: based on EIA/JDEC standard, 2Layers)
(*2): Mounted on glass epoxy board. (76.2 114.3 1.6mm:based on EIA/JDEC standard, 4Layers), internal Cu area: 74.2 74.2mm
(*3): Permissible current range there is no logical error in VOUT and no destruction
-2-
Ver.2015-11-11



New Japan Radio NJU7295
NJU7295
ELECTRICAL CHARACTERISTICS
PARAMETER
Detection Voltage
Quiescent Current
SYMBOL
VDET
ISS
Output Current
IOUT
HYS Pin Current
Average Temperature
Coefficient of Detection
Voltage
EXT Pin
High Level Voltage
EXT Pin
Low Level Voltage
VINPin Resistance
EXT Pin Resistance
Operating Voltage
IHYS
VDET/ Ta
VEXT_H
VEXT_L
RIN
REXT
VOPL
Unless otherwise noted, VDD=3.3V, Ta=25 C
TEST CONDITION
MIN. TYP. MAX. UNIT
Ta=-40 C to 105 C
-1.0%
-2.5%
1.0
+1.0%
+2.5%
V
No Signal
No Signal ,Ta=-40 C to 105 C
-
-
1.7
-
3.0
3.5
µA
Nch, VDS=0.5V
Nch, VDS=0.5V, Ta=-40 C to 105 C
Pch, VDS=0.5V
Pch, VDS=0.5V, Ta=-40 C to 105 C
Nch, VDS=0.5V
Nch, VDS=0.5V, Ta=-40 C to 105 C
Pch, VDS=0.5V
Pch, VDS=0.5V, Ta=-40 C to105 C
12
10
7.5
6.0
7.5
6.0
5.0
4.0
15
-
11
-
12
-
9.0
-
-
-
-
mA
-
-
-
-
mA
-
Ta=0 C to +85 C
- 100 - ppm/ C
Ta=-40 C to 105 C
Ta=-40 C to 105 C
Ta=-40 C to 105 C
Ta=-40 C to 105 C
Ta=-40 C to 105 C
0.67 VDD
0.7 VDD
-
-
VDD
VDD
V
-
-
-
-
0.33 VDD
0.3 VDD
V
10 20
8-
-
-
MΩ
0.5 1.0
0.4 -
-
-
MΩ
1.5
1.5
-
-
5.5
5.5
V
ELECTRICAL CHARACTERISTICS (Defined by each versions)
PARAMETER SYMBOL
TEST CONDITION
Unless otherwise noted, VDD=3.3V, Ta=25 C
MIN. TYP. MAX. UNIT
NJU7295F1-A
NJU7295F1-A-T, Ta=-40 C to 105 C
7
6
10
-
14
14
ms
Delay Time 1
td1
VIN=L H
NJU7295F1-B
NJU7295F1-B-T, Ta=-40 C to 105 C
NJU7295F1-C
NJU7295F1-C-T, Ta=-40 C to 105 C
16
15
7
6
20
-
10
-
24
25
14
14
ms
ms
NJU7295F1-D
NJU7295F1-D-T, Ta=-40 C to 105 C
7
6
10
-
14
14
ms
NJU7295F1-A
1.05 1.25 1.43
NJU7295F1-A-T, Ta=-40 C to 105 C 1.0 - 1.5
ms
Delay Time 2
NJU7295F1-B
7
td2
VIN=H L
NJU7295F1-B-T, Ta=-40 C to 105 C
NJU7295F1-C
6
7
NJU7295F1-C-T, Ta=-40 C to 105 C 6
10
-
14
14
ms
10
-
14
14
ms
NJU7295F1-D
NJU7295F1-D-T, Ta=-40 C to 105 C
-
-
30
-
100
120
µs
Ver.2015-11-11
-3-







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