NJU7295
SYSTEM RESET IC WITH DELAY CIRCUIT
■ GENERALDESCRIPTION
■ PACKAGE OUTLINE
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.
NJU7295F1
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
EXTPin 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.
■ FEATURES
● High Precision Detection Voltage
● Detection Voltage
1.0% (Ta=25 C)
1.0V (default) and adjustable with external resistor
● Reset Output Logic
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.
● Delay Circuit (Internal Fixed type) Rising / Falling independent setting
● Ultra Low Quiescent Current
● Supply Voltage Range
● External Input Pin
1.7µAtyp.
1.5 to 5.5V
While inputting low signal, keep output High level
●Adjustable Hysteresis Voltage
● OutputType
● Package
CMOS output
SOT-23-6-1
■ PIN CONFIGURATION
Pin Function
1. VIN
2. VSS
:Input Voltage Pin
:Ground Pin
1
2
3
6
5
4
VIN
VSS
HYS
VOUT
VDD
3. EXT :External Input Pin
4. VDD :Supply Voltage Pin
5. VOUT :Output Pin
EXT
6. HYS :External Resistor Pin for setting Hysteresis Voltage
Ver.2015-11-11
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