R3119N SERIES
50V INPUT VOLTAGE TYPE VOLTAGE DETECTOR
NO.EA-187-090115
OUTLINE
R3119N Series are CMOS process based (advantageous for low supply current) input voltage range (50V)
voltage detector with high detector threshold accuracy and ultra-low supply current.Each of those ICs consists of
a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver and a hysteresis
circuit.
There are two types: R3119NxxxA has the CD pin of external IC for setting the release-delay-time.
R3119NxxxE has the SENSE pin of external IC.
The supply current of IC is only 3.3μA. The detector threshold is possible to set range from 2.3V to 12V
internally with high accuracy (1.5%). The output type is Nch Open drain type.
Since the package for these ICs is small SOT-23-5, high density mounting of the ICs on board is possible.
FEATURES
•
Supply Current································································ Typ.3.3μA
•
Operating Voltage··························································· 1.5V~36.0V(C
D
pin type: R3119NxxxA)
2.1V~6.0V(SENSE pin type: R3119NxxxE)
•
High Detect Voltage Accuracy ········································
±1.5%
(Ta=25°C)
•
Detect Voltage Range····················································· Stepwise setting with a step of 0.1V in the range of
2.3V to 12.0V is possible
•
Released Delay Time (Power ON Reset Delay Time)···· -50~+80%( C
D
pin type: R3119NxxxA)
•
Package·········································································· SOT-23-5
APPLICATIONS
•
CPU and logic circuit reset.
•
Battery checker.
•
Battery back-up circuit.
•
Supervising of the power supply voltage of in-vehicle equipment.
1
R3119x
BLOCK DIAGRAMS
R3119NxxxA
R3119NxxxE
SENSE
V
DD
V
DD
-
Vref
+
Delay
Circuit
-
D
OUT
GND
Vref
+
D
OUT
GND
C
D
SELECTION GUIDE
The detect voltage, version, package, and the taping type for the ICs can be selected at the user’s request.
The selection can be made with designating the part number as shown below;
R3119x xxx x-xx-x
←Part
Number
↑ ↑ ↑ ↑ ↑
a b c d e
Code
a
b
c
d
e
Designation of Package Type:
N: SOT-23-5
Setting Detect Voltage:
Stepwise setting with 0.1V in the range from 2.30V to 12.0V is possible
Designation of Active Type:
A: with C
D
pin type
E: with SENSE pin type
Designation of Taping Type:
Ex.TR (refer to Taping Specifications: TR type is the standard direction)
Designation of composition of pin plating:
-F: Lead free solder plating
Contents
2
R3119x
PIN CONFIGURATION
SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTIONS
R3119N: SOT-23-5
Pin No.
1
2
3
4
5
Symbol
V
DD
GND *
GND *
D
OUT
C
D
SENSE
Input Pin
Ground Pin
Ground Pin
VD Output Pin
Connecting pin with external capacitor for setting delay time
Voltage Detector SENSE pin
Description
* No. 2 and No.3 pin must be wired to the GND plan when it is mounted on board.
3
R3119x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
D
OUT
V
CD
V
SENSE
I
OUT
P
D
Ta
Input Voltage
Output Voltage (D
OUT
pin)
Output Voltage (C
D
pin)
Input Voltage (SENSE Pin)
Output Current (D
OUT
pin)
Power Dissipation*
Ambient Temperature Range
SOT-23-5
- 40 ~ + 105
R3119NxxxA
R3119NxxxE
20
420
Item
R3119NxxxA
R3119NxxxE
-0.3~7.0
-0.3~7.0
-0.3~50.0
Ratings
-0.3~50.0
-0.3~7.0
Unit
V
V
V
V
mA
mW
°C
°C
Tstg
Storage Temperature Range
- 55 ~ + 125
* For Power Dissipation, please refer to PACKAGE INFORMATION to be described
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages
and may degrade the life time and safety for both device and system using the device in the field. The functional operation
at or over these absolute maximum ratings is not assured.
4
R3119x
ELECTRICAL CHARACTERISTICS
R3119NxxxA (C
D
pin type)
value indicate -40°C
Symbol
I
SS
-V
DET
V
HYS
t
DELAY
Δ-V
DET
/ΔTa
V
DDH
V
DDL
Item
Supply Current
Detector Threshold
Detector Threshold
Hysterisis
Output Delay Time
Detector Threshold
Temperature Coefficient
Maximum Operating
Voltage
Minimum Operating
Voltage
*1
Ta=25°C
-40°C
<
Ta
<
105°C
=
=
V
DD
=1.5V,V
DS
=0.05V
2.3V
<
(-V
DET
)<2.6V
=
V
DD
=2.2V
V
DS
=0.5V
2.6V
<
(-V
DET
)<3.0V
=
V
DD
=2.5V
V
DS
=0.5V
3.0V
<
(-V
DET
)
=
V
DD
=2.9V
V
DS
=0.5V
230
2.8
V
DD
=1.5V→(Vset)+2.0V
C
D
=0.01μF
-40°C
<
Ta
<
105°C
=
=
<
=
Ta
<
=
105°C is checked and guaranteed by design engineering.
Ta=25°C
Conditions
V
DD
=(-V
DET
) – 0.1V
V
DD
=(-V
DET
) + 1.0V
V
DD
pin
Ta=25°C
-40°C
<
Ta
<
105°C
=
=
Min.
Typ.
3.3
3.3
Max.
5.6
5.5
x 1.015
x 1.020
Unit
μA
V
%
ms
ppm
/°C
x 0.985
x 0.970
3.5
45
5
85
±100
6.5
150
36
1.2
1.25
V
V
μA
I
OUT
Output Current
3.3
mA
3.5
The specification in
is checked and guaranteed by design engineering.
All of unit are tested and specified under load conditions such that Tj
≈
Ta=25°C except for Detector Threshold Temperature
Coefficient item.
*1) This value is the minimum input voltage when the output voltage is 0.1V or less at detection. (the pull-up resistance;100kΩ,
the pull-up voltage;5.0V)
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating
conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended operating
conditions.
5
