VOLTAGE DETECTOR
WITH OUTPUT DELAY
RN5VD SERIES
NO. EA-027-090421
OUTLINE
The RN5VD Series are CMOS-based voltage detector ICs with output delay functions and high detector
threshold accuracy and ultra-low supply current, which can be operated at an extremely low voltage and is
used,for instance, for system reset.
Each of these ICs consists of a voltage reference unit, a comparator, resistors for voltage detection, an
output driver, a hysteresis circuit and an output delay generator. The detector threshold is fixed with high
accuracy in the IC and requires no adjustment.
The RN5VD Series are operable by a lower voltage than that for the Rx5VL Series, and can be driven by
a single battery.
Two output types, Nch open drain type and CMOS type, are available. Since the package for these ICs
is SOT-23-5(Mini-mold)package, high density mounting of the ICs on board is possible.
FEATURES
• Output Delay ......................................................Typ. 100ms with external capacitor : 0.15µF
• Ultra-low Supply Current .................................Typ. 1.0µA (RN5VD15x : V
DD
=3.5V)
• Broad Operating Voltage Range .......................0.7V to 10.0V
• Detector Threshold ............................................Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is
................................................................................possible.
(refer to Selection Guide) .
• High Accuracy Detector Threshold ..................±2.5%
• Low Temperature-Drift Coefficient of Detector Threshold ...........Typ. ±100ppm/˚C
• Two Output Types..............................................Nch Open Drain and CMOS
• Small Package ....................................................SOT-23-5(Mini-mold)
APPLICATIONS
•
CPU & Logic Circuit Reset
•
Battery Checker
•
Window Comparator
•
Wave Shaping Circuit
•
Battery Back-Up Circuit
•
Power Failure Detector
1
RN5VD
BLOCK DIAGRAMS
Nch Open Drain Output (RN5VDxxA)
V
DD
R
D
OUT V
DD
R
D
CMOS Output (RN5VDxxC)
+
-
Vref
GND
+
OUT
-
Vref
GND
C
D
C
D
SELECTION GUIDE
The detector threshold, the output type for the ICs can be selected at the users’ request.
The selection can be made with designating the part number as shown below;
RN5VDxxxA-xx -x
←
Part Number
↑
a
Code
a
b
c
d
e
↑ ↑
b c
↑ ↑
d e
Contents
Designation of Package Type;
N: SOT-23-5
Setting Detector Threshold (-V
DET
);
Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible.
Designation of Output Type;
A: Nch Open Drain
C: CMOS
Designation of Taping Type;
TR (Refer to Taping Specifications; TR type is the standard direction.)
Designation of Composition of pin plating
-F: Lead free solder plating (SOT-23-5)
For example, the Product with Detector Threshold 4.5V and Output Type Nch Open Drain is designated by Part
Number RN5VD45AA-TR-F.
2
RN5VD
PIN CONFIGURATION
• SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
Description
1
2
3
4
5
OUT
V
DD
GND
NC
C
D
Output Pin
Input and power source for device itself
Ground Pin
No Connection
Pin for external capacitor (for setting output delay)
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
V
DD
Supply Voltage
CNOS
Output Voltage
Nch
12
V
SS
–0.3 to V
DD
+0.3
V
V
OUT
V
V
SS
–0.3 to 12
70
150
–40 to +85
–55 to +125
260˚C, 10s
mA
mW
˚C
˚C
I
OUT
P
D
Topt
Tstg
Tsolder
Output Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering)
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any
conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above
these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress
ratings only and do not necessarily imply functional operation below these limits.
3
RN5VD
ELECTRICAL CHARACTERISTICS
• RN5VD09A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–V
DET
V
HYS
Detector Threshold
Detector Threshold Hysteresis
V
DD
=0.8V
0.878
0.027
0.900
0.045
1.5
0.9
0.922
0.063
3.7
V
V
µA
I
SS
Supply Current
V
DD
=2.9V
2.7
10
Topt=25˚C
–30˚C≤Topt≤85˚C
V
DS
=0.05V, V
DD
=0.7V
Nch
0.01
0.05
1.0
0.297
2.0
10.0
0.5
0.55
0.65
0.05
0.70
V
DDH
Maximum Operating Voltage
Minimum Operating Voltage
(
Note
1)
V
V
DDL
V
0.80
mA
V
DS
=0.5V, V
DD
=0.85V
0.50
2.0
0.495
30
µA
V
DS
=0.5V, V
DD
=0.85V
100.0
1.0
2.0
MΩ
0.693
mA
V
I
OUT
Output Current
Pch
V
DS
=–2.1V, V
DD
=4.5V
V
DD
=0.99V
V
DS
=0.1V, V
DD
=0.7V
V
TCD
C
D
pin Threshold Voltage
I
CD
C
D
pin Sink Current
R
D
∆–V
DET
∆Topt
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
ppm/˚C
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470kΩ, and the pull-up voltage is set at 5.0V.
4
RN5VD
• RN5VD18A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–V
DET
V
HYS
Detector Threshold
Detector Threshold Hysteresis
V
DD
=1.7V
1.755
0.054
1.800
0.090
2.5
1.0
1.845
0.126
5.0
V
V
µA
I
SS
Supply Current
V
DD
=3.8V
3.0
10
Topt=25˚C
–30˚C≤Topt≤85˚C
V
DS
=0.05V, V
DD
=0.7V
Nch
0.01
1.0
1.0
0.693
2.0
200.0
0.5
0.55
0.65
0.05
0.70
0.80
V
DDH
Maximum Operating Voltage
Minimum Operating Voltage
(
Note
1)
V
V
DDL
V
mA
V
DS
=0.5V, V
DD
=1.5V
2.0
2.0
0.990
30
µA
V
DS
=0.5V, V
DD
=1.5V
800.0
1.0
2.0
MΩ
1.287
mA
V
I
OUT
Output Current
Pch
V
DS
=–2.1V, V
DD
=4.5V
V
DD
=1.98V
V
DS
=0.1V, V
DD
=0.7V
V
TCD
C
D
pin Threshold Voltage
I
CD
C
D
pin Sink Current
R
D
∆–V
DET
∆Topt
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
ppm/˚C
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470kΩ, and the pull-up voltage is set at 5.0V.
5
Embedded System
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