R3150N Series
36 V Input Voltage Detector
No. EA-230-210222
OUTLINE
The R3150N is a voltage detector that provides high-voltage resistance, high voltage accuracy and low supply
current. This device is suitable for battery voltage supervisor. The R3150NxxxA/B provide VDD pin detection and
the R3150NxxxE/F provide SENSE pin detection. Detector threshold and Release voltage can be specified
separately. Both the detector threshold accuracy and the release voltage accuracy are ±1.5% (25°C) (Detector
Threshold Hysteresis is 5% to 20%).
The detect output delay time and the release output delay time (Power-on Reset Time) are adjustable by using
external capacitors. The output types are Nch open drain “L” output and Nch open drain “H” output.
The R3150N is available in SOT-23-6 package that is possible to achieve high-density mounting on boards.
FEATURES
• Operating Voltage Range (Maximum Rating) ················· R3150NxxxA/B: 1.4 V to 36.0 V (50.0 V)
R3150NxxxE/F: 3.6 V to 6.0 V (7.0 V)
• Operating Temperature Range ····································· −40°C to 105°C
• Supply Current ························································· R3150NxxxA/B: Typ. 3.8 µA
R3150NxxxE/F: Typ. 3.5 µA
• Detector Threshold Range ·········································· 5.0 V to 10.0 V (0.1 V step)
• Detector Threshold Accuracy ······································· ±1.5% (25°C)
±2.0% (−40°C to 105ºC)
(1)
• Release Voltage Range ············································ 5.3V to 11.0V (0.1V steps)
• Release Voltage Accuracy ··········································· ±1.5% (25°C)
±2.0% (−40°C to 105ºC)
• Detect Output Delay Time Accuracy ······························ −35% to 40% (−40°C to 105°C)
• Release Output Delay Time Accuracy ···························· −35% to 40% (−40ºC to 105ºC)
• Output Type ····························································· Nch Open Drain
• Package ·································································· SOT-23-6
Detect Output Delay Time and Release Output Delay Time are adjustable by external capacitor.
APPLICATIONS
• Voltage monitoring for laptops, digital TVs, cordless phones, and private LAN systems for home.
(1) The
release voltage can be adjusted by having the hysteresis set to 5% to 20% of the detector threshold.
1
R3150N
No. EA-230-210222
SELECTION GUIDE
The detector threshold, release voltage, and output type for the ICs are user-selectable options.
Selection Guide
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
R3150Nxxx∗-TR-FE
SOT-23-6
3,000 pcs
Yes
Yes
xxx: Specify a combination of Set Detector Threshold (-VSET) and Set Release Voltage (+VSET) by using
serial numbers starting from 001.
-VSET can be designated between 5.0 V and 10.0 V in 0.1 V step.
+VSET can be designated between 5.3 V and 11.0 V in 0.1 V step.
∗: Select an output type from below.
A: VDD Voltage Detection Type “L” Output
B: VDD Voltage Detection Type “H” Output
E: SENSE Voltage Detection Type “L” Output
F: SENSE Voltage Detection Type “H” Output
2
R3150N
No. EA-230-210222
BLOCK DIAGRAMS
R3150NxxxA
R3150NxxxB
CR
CR
VDD
DOUT
VDD
DOUT
Delay
Circuit
Delay
Circuit
Vref
Vref
GND
SENSE
GND
CD
CD
R3150NxxxE
R3150NxxxF
CR
SENSE
DOUT
VDD
CR
VDD
DOUT
Delay
Circuit
Delay
Circuit
Vref
Vref
GND
CD
GND
CD
3
R3150N
No. EA-230-210222
PIN DESCRIPTIONS
6
5
4
(mark side)
1
2
3
SOT-23-6 Pin Configuration
SOT-23-6 Pin Descriptions
Pin No.
Symbol
Description
1
CD
Release Output Delay Time (tdelay) Setting Pin
2
CR
Detect Output Delay Time (treset) Setting Pin
NC
No Connection (R3150NxxxA/B)
3
SENSE
VD Voltage SENSE Pin (R3150NxxxE/F)
4
VDD
Input Pin
5
GND
Ground Pin
6
DOUT
VD Output Pin (Nch Open Drain)
4
R3150N
No. EA-230-210222
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Symbol
Rating
Unit
Supply Voltage (R3150NxxxA/B)
−0.3 to 50.0
V
Supply Voltage (R3150NxxxE/F)
−0.3 to 7.0
V
VSENSE
SENSE Pin Voltage (R3150NxxxE/F)
−0.3 to 50.0
V
VDOUT
DOUT Pin Output Voltage
−0.3 to 7.0
V
VCD
CD Pin Output Voltage
−0.3 to 7.0
V
VCR
CR Pin Output Voltage
−0.3 to 7.0
V
IOUT
DOUT Pin Output Curren
20
mA
PD
Power Dissipation(1)
660
mW
Tj
Junction Temperature Range
−40 to 125
°C
Tstg
Storage Temperature Range
−55 to 125
°C
VDD
Item
SOT-23-6
JEDEC STD. 51-7
Test Land Pattern
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause permanent damage
and may degrade the lifetime 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.
RECOMMENDED OPERATING CONDITIONS
Recommended Operating Conditions
Symbol
Parameter
R3150NxxxA/B
VDD
Operating Voltage
R3150NxxxE/F
VSENSE
SENSE Input Voltage
R3150NxxxE/F
Ta
Operating Temperature Range
Rating
1.4 to 36.0
3.6 to 6.0
0 to 36.0
−40 to 105
Unit
V
V
V
°C
RECOMMENDED OPERATING CONDITIONS
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 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.
(1)
Refer to POWER DISSIPATION for detailed information.
5
R3150N
No. EA-230-210222
ELECTRICAL CHARACTERISTICS
CD = 1000 pF, CR =1000 pF, Pull-up resistance = 100 kΩ, Pull-up voltage = 5 V, unless otherwise noted.
The specifications surrounded by
are guaranteed by design engineering at −40°C ≤ Ta ≤ 105°C.
Electrical Characteristics R3150NxxxA/B
Symbol
Item
VDD
Operating Voltage( 1)
ISS
Supply Current
-VDET
Detector Threshold
+VDET
Release Voltage
treset
tdelay
IOUT
RCD
RCR
Detect Output Delay
Time(2)
Release Output Delay
Time(3)
Output Current
(Nch Driver Output Pin)
CD Pin Discharge Tr. On
Resistance
CR Pin Discharge Tr. On
Resistance
(Ta = 25°C)
Conditions
R3150NxxxA
Min.
Typ.
1.4
R3150NxxxB
Max.
Unit
36.0
V
VDD = -VSET - 0.1 V
3.8
6.1
VDD = +VSET + 1.0 V
3.8
6.4
Ta = 25°C
x0.985
x1.015
−40°C ≤ Ta ≤ 105°C
x0.980
x1.020
Ta = 25°C
x0.985
x1.015
−40°C ≤ Ta ≤ 105°C
x0.980
x1.020
μA
V
V
CR = 1000 pF, −40°C ≤ Ta ≤ 105°C
6.5
10
14.0
ms
CD = 1000 pF, −40°C ≤ Ta ≤ 105°C
6.5
10
14.0
ms
0.5
2.0
mA
VDD = 13 V, VCD = 0.5 V
0.50
2.60
kΩ
VDD = 4.5 V, VCR = 0.5 V
0.50
2.60
kΩ
R3150NxxxA:
VDD = 4.5 V,
VDS = 0.05 V
R3150NxxxB:
VDD = 13.0 V,
VDS = 0.05 V
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj ≈ Ta = 25°C).
(1)
(2)
(3)
The minimum operating voltage is the voltage required for the stable operation of the devices.
A time that VDOUT requires to reach 2.5 V when changed VDD from “-VSET + 1.0 V” to “-VSET − 1.0 V”.
A time that VDOUT requires to reach 2.5 V when changed VDD from “+VSET − 1.0 V” to “+VSET + 1.0 V”.
6
R3150N
No. EA-230-210222
CD = 1000 pF, CR =1000 pF, Pull-up resistance = 100 kΩ, Pull-up voltage = 5 V, unless otherwise noted.
The specifications surrounded by
are guaranteed by design engineering at −40°C ≤ Ta ≤ 105°C.
Electrical Characteristics R3150NxxxE/F
Symbol
Item
VDD
VSENSE
ISS
Operating
Min.
Typ.
Supply Current(2)
-VDET
Detector Threshold
+VDET
Release Voltage
Detect Output Delay
Time(3)
Release Output Delay
Time(4)
Max.
Unit
6.0
V
36.0
V
3.6
SENSE Input Voltage
SENSE Resistance
tdelay
Conditions
Voltage( 1)
RSENSE
treset
(Ta = 25°C)
VDD = 5.0 V, VSENSE = -VSET - 0.1 V
3.5
5.5
VDD = 5.0 V, VSENSE = +VSET + 1.0 V
3.5
5.6
4.5
51.5
Ta = 25°C
x0.985
x1.015
−40°C ≤ Ta ≤ 105°C
x0.980
x1.020
Ta = 25°C
x0.985
x1.015
−40°C ≤ Ta ≤ 105°C
x0.980
x1.020
μA
MΩ
V
V
CR = 1000 pF, −40°C ≤ Ta ≤ 105°C
6.5
10
14.0
ms
CD = 1000 pF, −40°C ≤ Ta ≤ 105°C
6.5
10
14.0
ms
0.5
2.0
mA
IOUT
Output Current
(Nch Driver Output Pin)
VDD = 5.0 V,
R3150NxxxE VDS = 0.05 V,
VSENSE = -VSET - 0.1 V
VDD = 5.0 V,
R3150NxxxF VDS = 0.05 V,
VSENSE = +VSET + 1.0 V
RCD
CD Pin Discharge Tr. On
Resistance
VDD = 4.5 V, VSENSE = 13 V, VCD = 0.5 V
0.50
2.60
kΩ
RCR
CR Pin Discharge Tr. On
Resistance
VDD = 4.5 V, VSENSE = 4.5 V, VCR = 0.5 V
0.50
2.60
kΩ
All test items listed under Electrical Characteristics are done under the pulse load condition (Tj ≈ Ta = 25ºC).
(1)
(2)
(3)
(4)
The minimum operating voltage is the voltage required for the stable operation of the devices.
Not including the current for SENSE resistance.
A time that VDOUT requires to reach 2.5 V when changed VSENSE from “-VSET + 1.0 V” to “-VSET − 1.0 V”.
A time that VDOUT requires to reach 2.5 V when changed VSENSE from “+VSET − 1.0 V” to “+VSET + 1.0 V”.
7
R3150N
No. EA-230-210222
Product-specific Electrical Characteristics
are guaranteed by design engineering at −40°C ≤ Ta ≤ 105°C.
The specifications surrounded by
R3150NxxxA
(Ta=25°C)
Product
Name
-VDET [V]
-VDET [V]
+VDET [V]
+VDET [V]
(Ta = 25°C)
(−40°C ≤ Ta ≤ 105°C)
(Ta = 25°C)
(−40°C ≤ Ta ≤ 105°C)
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
R3150N001A
6.304
6.400
6.496
6.272
6.400
6.528
7.191
7.300
7.409
7.154
7.300
7.446
R3150N002A
8.373
8.500
8.627
8.330
8.500
8.670
8.865
9.000
9.135
8.820
9.000
9.180
R3150N003A
8.865
9.000
9.135
8.820
9.000
9.180
9.358
9.500
9.642
9.310
9.500
9.690
R3150N004A
5.812
5.900
5.988
5.782
5.900
6.018
6.698
6.800
6.902
6.664
6.800
6.936
R3150N005A
6.403
6.500
6.597
6.370
6.500
6.630
6.994
7.100
7.206
6.958
7.100
7.242
R3150N006A
6.206
6.300
6.394
6.174
6.300
6.426
6.797
6.900
7.003
6.762
6.900
7.038
R3150N007A
5.713
5.800
5.887
5.684
5.800
5.916
6.206
6.300
6.394
6.174
6.300
6.426
R3150N013A
6.895
7.000
7.105
6.860
7.000
7.140
7.388
7.500
7.612
7.350
7.500
7.650
R3150N018A
5.910
6.000
6.090
5.880
6.000
6.120
7.092
7.200
7.308
7.056
7.200
7.344
R3150N020A
6.895
7.000
7.105
6.860
7.000
7.140
8.274
8.400
8.526
8.232
8.400
8.568
R3150N021A
5.910
6.000
6.090
5.880
6.000
6.120
6.206
6.300
6.394
6.174
6.300
6.426
R3150N025A
8.865
9.000
9.135
8.820
9.000
9.180
9.752
9.900 10.048
9.702
9.900
10.098
R3150N026A
9.850
10.000 10.150
9.800
10.000 10.200 10.835 11.000 11.165 10.780 11.000 11.220
8
R3150N
No. EA-230-210222
are guaranteed by design engineering at −40°C ≤ Ta ≤ 105°C.
The specifications surrounded by
R3150NxxxB
(Ta=25°C)
Product
Name
-VDET [V]
-VDET [V]
+VDET [V]
+VDET [V]
(Ta = 25°C)
(−40°C ≤ Ta ≤ 105°C)
(Ta = 25°C)
(−40°C ≤ Ta ≤ 105°C)
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
R3150N001B
6.304
6.400
6.496
6.272
6.400
6.528
7.191
7.300
7.409
7.154
7.300
7.446
R3150N002B
8.373
8.500
8.627
8.330
8.500
8.670
8.865
9.000
9.135
8.820
9.000
9.180
R3150N003B
8.865
9.000
9.135
8.820
9.000
9.180
9.358
9.500
9.642
9.310
9.500
9.690
R3150N004B
5.812
5.900
5.988
5.782
5.900
6.018
6.698
6.800
6.902
6.664
6.800
6.936
R3150N005B
6.403
6.500
6.597
6.370
6.500
6.630
6.994
7.100
7.206
6.958
7.100
7.242
R3150N006B
6.206
6.300
6.394
6.174
6.300
6.426
6.797
6.900
7.003
6.762
6.900
7.038
R3150N007B
5.713
5.800
5.887
5.684
5.800
5.916
6.206
6.300
6.394
6.174
6.300
6.426
R3150N008B
7.388
7.500
7.612
7.350
7.500
7.650
8.865
9.000
9.135
8.820
9.000
9.180
R3150N011B
7.683
7.800
7.917
7.644
7.800
7.956
8.865
9.000
9.135
8.820
9.000
9.180
R3150N012B
7.191
7.300
7.409
7.154
7.300
7.446
8.570
8.700
8.830
8.526
8.700
8.874
R3150N013B
6.895
7.000
7.105
6.860
7.000
7.140
7.388
7.500
7.612
7.350
7.500
7.650
R3150N014B
7.979
8.100
8.221
7.938
8.100
8.262
8.373
8.500
8.627
8.330
8.500
8.670
R3150N015B
5.910
6.000
6.090
5.880
6.000
6.120
6.403
6.500
6.597
6.370
6.500
6.630
R3150N016B
5.418
5.500
5.582
5.390
5.500
5.610
5.910
6.000
6.090
5.880
6.000
6.120
R3150N017B
5.221
5.300
5.379
5.194
5.300
5.406
6.206
6.300
6.394
6.174
6.300
6.426
R3150N019B
5.910
6.000
6.090
5.880
6.000
6.120
7.388
7.500
7.612
7.350
7.500
7.650
R3150N020B
6.895
7.000
7.105
6.860
7.000
7.140
8.274
8.400
8.526
8.232
8.400
8.568
R3150N021B
5.910
6.000
6.090
5.880
6.000
6.120
6.206
6.300
6.394
6.174
6.300
6.426
R3150N025B
8.865
9.000
9.135
8.820
9.000
9.180
9.752
9.900 10.048
9.702
9.900
10.098
R3150N026B
9.850
10.000 10.150
9.800
10.000 10.200 10.835 11.000 11.165 10.780 11.000 11.220
9
R3150N
No. EA-230-210222
are guaranteed by design engineering at −40°C ≤ Ta ≤ 105°C.
The specifications surrounded by
R3150NxxxE
(Ta = 25°C)
-VDET [V]
Product
Name
-VDET [V]
+VDET [V]
(−40°C ≤ Ta ≤ 105°C)
(Ta = 25°C)
+VDET [V]
(−40°C ≤ Ta ≤ 105°C)
(Ta = 25°C)
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
R3150N001E
6.304
6.400
6.496
6.272
6.400
6.528
7.191
7.300
7.409
7.154
7.300
7.446
R3150N002E
8.373
8.500
8.627
8.330
8.500
8.670
8.865
9.000
9.135
8.820
9.000
9.180
R3150N003E
8.865
9.000
9.135
8.820
9.000
9.180
9.358
9.500
9.642
9.310
9.500
9.690
R3150N004E
5.812
5.900
5.988
5.782
5.900
6.018
6.698
6.800
6.902
6.664
6.800
6.936
R3150N005E
6.403
6.500
6.597
6.370
6.500
6.630
6.994
7.100
7.206
6.958
7.100
7.242
R3150N006E
6.206
6.300
6.394
6.174
6.300
6.426
6.797
6.900
7.003
6.762
6.900
7.038
R3150N007E
5.713
5.800
5.887
5.684
5.800
5.916
6.206
6.300
6.394
6.174
6.300
6.426
R3150N013E
6.895
7.000
7.105
6.860
7.000
7.140
7.388
7.500
7.612
7.350
7.500
7.650
R3150NxxxF
(Ta = 25°C)
Product
Name
-VDET [V]
-VDET [V]
+VDET [V]
(Ta = 25°C)
(−40°C ≤ Ta ≤ 105°C)
(Ta = 25°C)
+VDET [V]
(−40°C ≤ Ta ≤ 105°C)
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
R3150N001F
6.304
6.400
6.496
6.272
6.400
6.528
7.191
7.300
7.409
7.154
7.300
7.446
R3150N002F
8.373
8.500
8.627
8.330
8.500
8.670
8.865
9.000
9.135
8.820
9.000
9.180
R3150N003F
8.865
9.000
9.135
8.820
9.000
9.180
9.358
9.500
9.642
9.310
9.500
9.690
R3150N004F
5.812
5.900
5.988
5.782
5.900
6.018
6.698
6.800
6.902
6.664
6.800
6.936
R3150N005F
6.403
6.500
6.597
6.370
6.500
6.630
6.994
7.100
7.206
6.958
7.100
7.242
R3150N006F
6.206
6.300
6.394
6.174
6.300
6.426
6.797
6.900
7.003
6.762
6.900
7.038
R3150N007F
5.713
5.800
5.887
5.684
5.800
5.916
6.206
6.300
6.394
6.174
6.300
6.426
R3150N008F
7.388
7.500
7.612
7.350
7.500
7.650
8.865
9.000
9.135
8.820
9.000
9.180
R3150N011F
7.683
7.800
7.917
7.644
7.800
7.956
8.865
9.000
9.135
8.820
9.000
9.180
R3150N012F
7.191
7.300
7.409
7.154
7.300
7.446
8.570
8.700
8.830
8.526
8.700
8.874
R3150N013F
6.895
7.000
7.105
6.860
7.000
7.140
7.388
7.500
7.612
7.350
7.500
7.650
R3150N015F
5.910
6.000
6.090
5.880
6.000
6.120
6.403
6.500
6.597
6.370
6.500
6.630
R3150N016F
5.418
5.500
5.582
5.390
5.500
5.610
5.910
6.000
6.090
5.880
6.000
6.120
R3150N017F
5.221
5.300
5.379
5.194
5.300
5.406
6.206
6.300
6.394
6.174
6.300
6.426
10
R3150N
No. EA-230-210222
THEORY OF OPERATION
R3150NxxxA (VDD VOLTAGE DETECTION TYPE)
VDD
Comparator
Ra
Delay
Circuit
Vref
DOUT (1)
Rb
Nch
Tr.1
Rc
GND
CD
CR
1
Block Diagram with External Capacitors
1
Supply Voltage (VDD)
2
3
4
5
(2)
Release Voltage +VDET
Hysteresis
A
Detector Threshold -VDET
Step
1
2
3
4
5
Comparator (-)
Pin Input Voltage
Ⅰ
Ⅱ
Ⅱ
Ⅱ
Ⅰ
L
H
Unstable
H
L
B
Comparator Output
Minimum Operating Voltage VDDL
GND
Unstable Output
Output Voltage (VDOUT)
Pull-up Voltage
Release Output
Delay Time
Detect Output Delay Time
treset
tdelay
Tr.1
OFF ON
Unstable ON OFF
Output Tr. (Nch)
OFF ON
Unstable ON OFF
Ⅰ
Rb+Rc
xV
Ra+Rb+Rc DD
Ⅱ
GND
Rb
Ra+Rb
xVDD
2
Operation Diagram
1. The output voltage is equalized to the pull-up voltage.
2. The VDD voltage drops to the detector threshold (A point) which means
Vref ≥ VDD x (Rb + Rc) / (Ra + Rb + Rc), and the comparator output shifts from “L” to “H” voltage, and
the output pin voltage shifts from the pull-up voltage to “L” voltage.
3. If the VDD voltage is lower than the minimum operating voltage, the output voltage becomes unstable.
4. The output pin voltage becomes “L” voltage.
5. The VDD voltage becomes higher than the release voltage (B point) which means
Vref ≤ VDD x Rb / (Ra + Rb), and the comparator output shifts from “H” to “L” voltage, and the output
pin voltage is equalized to the pull-up voltage.
(1)
(2)
DOUT pin should be pulled-up to an external voltage level.
The gap between the release voltage and the detector threshold is hysteresis.
11
R3150N
No. EA-230-210222
R3150NxxxB (VDD VOLTAGE DETECTION TYPE)
VDD
Comparator
Ra
(1)
Delay
Circuit
DOUT
Rb
Vref
Nch
Tr.1
Rc
GND
CD CR
1
Block Diagram with External Capacitors
1
Supply Voltage (VDD)
3
4
5
Step
1
2
3
4
5
Comparator (-)
Pin Input Voltage
Ⅰ
Ⅱ
Ⅱ
Ⅱ
Ⅰ
Comparator Output
L
H
H
H
L
(2)
Release Voltage +VDET
Detector Threshold -VDET
2
A
Hysteresis
B
Minimum Operating Voltage VDDL
GND
Tr.1
OFF ON
Output Tr. (Nch)
Output Voltage (VDOUT)
Pull-up Voltage
Detect Output Delay Time
treset
Ⅰ
Released Output
Delay Time
tdelay
GND
Ⅱ
2
ON ON OFF
ON OFF OFF OFF ON
Rb+Rc
xV
Ra+Rb+Rc DD
Rb
Ra+Rb
xVDD
Operation Diagram
1. The output pin voltage becomes “L” voltage.
2. The VDD voltage drops to the detector threshold (A point) which means
Vref ≥ VDD x (Rb + Rc) / (Ra + Rb + Rc), and the comparator output shifts from “L” to “H” voltage and the
output voltage is equalized to the pull-up voltage.
3. If the VDD voltage is lower than the minimum operating voltage, the output is the pull-up voltage.
4. The output voltage is equalized to the pull-up voltage.
5. The VDD voltage becomes higher than the release voltage (B point) which means
Vref ≤ VDD x Rb / (Ra + Rb), and the comparator output shift from “H” to ”L” voltage and the output
voltage becomes “L” voltage.
(1)
(2)
DOUT pin should be pulled-up to an external voltage level.
The gap between the release voltage and the detector threshold is hysteresis.
12
R3150N
No. EA-230-210222
R3150NxxxE (SENSE VOLTAGE DETECTION TYPE)
SENSE
VDD
Comparator
Ra
(1)
Delay
Circuit
DOUT
Rb
Vref
Nch
Tr.1
Rc
GND
CD CR
1
Block Diagram with External Capacitors
1
SENSE Pin Voltage
(VSENSE)
3
(2)
Release Voltage +VDET
Detector Threshold -VDET
2
A
Hysteresis
treset
GND
2
3
Comparator
(-) Pin Input Voltage
Ⅰ
Ⅱ
Ⅰ
Comparator Output
L
H
L
Tr.1
OFF
ON
OFF
Output Tr. (Nch)
OFF
ON
OFF
Ⅰ
Output Voltage (VDOUT)
Pull-up Voltage
1
B
GND
Detect Output Delay Time
Step
Release Output
Delay Time
Ⅱ
tdelay
Rb+Rc
xV
Ra+Rb+Rc SENSE
Rb
Ra+Rb
xVSENSE
2
Operation Diagram
1. The output voltage is equalized to the pull-up voltage.
2. The SENSE pin voltage drops to the detector threshold (A point) which means
Vref ≥ VDD x (Rb + Rc) / (Ra + Rb + Rc), and the comparator output shifts from “L” to “H” voltage, and
the output pin voltage shifts from the pull-up voltage to “L” voltage. (If the VDD voltage is higher than the
minimum operating voltage, the output remains as “L” voltage)
3. The SENSE pin voltage becomes higher than the release voltage (B point) which means
Vref ≤ VSENSE x Rb / (Ra + Rb), and the comparator output shifts from “H” to “L” voltage, and the output
pin voltage is equalized to the pull-up voltage.
(1)
(2)
DOUT pin should be pulled-up to an external voltage level.
The gap between the release voltage and the detector threshold is hysteresis.
13
R3150N
No. EA-230-210222
R3150NxxxF (SENSE VOLTAGE DETECTION TYPE)
SENSE
VDD
Comparator
Ra
Delay
Circuit
DOUT
(1)
Rb
Vref
Nch
Tr.1
Rc
GND
CD CR
1
Block Diagram with External Capacitors
1
SENSE Pin Voltage
(VSENSE)
3
(2)
Release Voltage +VDET
Detector Threshold -VDET
2
A
Hysteresis
B
Step
1
2
3
Comparator
(-) Pin Input Voltage
Ⅰ
Ⅱ
Ⅰ
Comparator Output
L
H
L
Tr.1
OFF
ON OFF
Output Tr. (Nch)
ON
OFF ON
GND
Output Voltage (VDOUT)
Pull-up Voltage
Detect Output Delay Time
treset
GND
Release Output
Delay Time
tdelay
2
Ⅰ
Rb+Rc
xV
Ra+Rb+Rc SENSE
Ⅱ
Rb
xVSENSE
Ra+Rb
Operation Diagram
1.
The output becomes “L” voltage if the SENSE pin voltage is higher than the detector threshold.
2.
The SENSE pin voltage drops to the detector threshold (A point) which means
Vref ≥ VSENSE x (Rb + Rc) / (Ra + Rb + Rc), and the comparator output shifts from “L” to “H” voltage and
the output voltage is equalized to the pull-up voltage. (If the VDD voltage is higher than the minimum
operating voltage, the output remains as the pull-up voltage.)
3.
The SENSE pin voltage becomes higher than the release voltage (B point) which means
Vref ≤ VSENSE x Rb / (Ra + Rb), and the comparator output shift from “H” to ”L” voltage and the output
voltage becomes “L” voltage.
(1)
(2)
DOUT pin should be pulled-up to an external voltage level.
The gap between the release voltage and the detector threshold is hysteresis.
14
R3150N
No. EA-230-210222
DETECT OUTPUT DELAY TIME (treset)
Detect Output Delay Time (treset) is defined as follows:
treset starts after the output pin (DOUT) is pulled up to 5 V with a 100 kΩ resistor and the VDD/VSENSE is shifted
from “-VSET + 1.0 V” to “-VSET - 1.0 V”. treset ends when the output voltage reaches to 2.5 V.
-VSET+1.0V
VDD / VSENSE
VDOUT
-VSET+1.0V
-VSET
VDD / VSENSE
-VSET
-VSET−1.0V
GND
-VSET−1.0V
GND
5.0V
5.0V
VDOUT
2.5V
GND
2.5V
GND
treset
R3150NxxxA/E
treset
R3150NxxxB/F
treset is calculated by the following equation:
treset (s) = CR x 107
With the R3150NxxxA/B, if the VDD voltage after detection is 3.6 V or less, the normal detect output delay time
cannot be expected due to insufficient voltage (The detect output delay time decreases along with the decrease
of VDD voltage).
15
R3150N
No. EA-230-210222
DETECT OUTPUT DELAY
+VDET
-VDET
VDD / VSENSE
+VDET
-VDET
VDD / VSENSE
VTCR
VTCR
VCR
GND
VCR
GND
VDOUT
GND
VDOUT
GND
treset
R3150NxxxA/E
treset
R3150NxxxB/F
If the voltage lower than the detector threshold is applied to VDD/SENSE pin while the voltage higher than the
release voltage is applied to the VDD/SENSE pin, the external capacitor starts to charge electricity and the CR
pin voltage starts to increase.
Until the CR pin voltage reaches to the detector threshold of the detect output delay pin (VTCR), the output
voltage maintains the release output. If the CR pin voltage becomes higher than VTCR, the output voltage shifts
from the release output to the detection output.
In addition, if the output voltage shift from the release output to the detection output, the external capacitor
starts to discharge electricity and the CR pin voltage starts decrease.
16
R3150N
No. EA-230-210222
RELEASE OUTPUT DELAY TIME (tdelay)
Release Output Delay Time (tdelay) is defined as follows:
tdelay starts after the output pin (DOUT) is pulled up to 5 V with a 100 kΩ resistor, and the VDD/VSENSE is shifted
from “+VSET - 1.0 V” to “+VSET + 1.0 V”. It ends when the output voltage reaches to 2.5 V.
+VSET+1.0V
VDD / VSENSE
+VSET+1.0V
VDD / VSENSE
+VSET
+VSET−1.0V
+VSET−1.0V
GND
GND
5.0V
VDOUT
+VSET
5.0V
VDOUT
2.5V
GND
2.5V
GND
tdelay
R3150NxxxA/E
tdelay
R3150NxxxB/F
tdelay is calculated by the following equation:
tdelay (s) = CD x 107
17
R3150N
No. EA-230-210222
RELEASE OUTPUT DELAY
+VDET
VDD / VSENSE
-VDET
+VDET
VDD / VSENSE
-VDET
VTCD
VCD
VTCD
VCD
GND
VDOUT
GND
VDOUT
GND
tdelay
R3150NxxxA/E
GND
tdelay
R3150NxxxB/F
If the voltage higher than the release voltage is applied to the VDD/SENSE pin while the voltage lower than the
detector threshold is applied to VDD/SENSE pin, the external capacitor starts to charge electricity and the CD
pin voltage starts to increase.
Until the CD pin voltage reaches to the release voltage of the release output delay pin (VTCD), the output voltage
maintains the release output. If the CD pin voltage becomes higher than the release voltage of the release
output delay pin, the output voltage shifts from the detection output to the release output.
In addition, if the output voltage shifts from the detection output to the release output, the external capacitor
starts to discharge electricity and the CD pin voltage starts to decrease.
18
R3150N
No. EA-230-210222
START-UP AND SHUTDOWN SEQUENCES
The R3150NxxxE/F (SENSE Voltage Detection Type) supervise the SENSE pin voltage while the voltage
higher than the minimum operating voltage is applied to VDD pin.
At start-up, either the VDD pin or SENSE pin can be started up first, however, if the VDD pin is started up with a
voltage lower than the minimum operating voltage while the SENESE pin has already been started up, the
start-up slope angle of the VDD pin should be 10 V/ ms or less.
At shutdown, the SENSE pin should be shut down first, then after treset, the VDD pin should be shut down.
DETECTOR OPERATION VS. GLITCH INPUT VOLTAGE
The R3150N has built-in rejection of fast transients on the VDD (R3150NxxxA/B) or SENSE (R3150NxxxE/F)
pins. The rejection of transients depends on both the pulse width and the overdrive voltage, as shown in Figure
1. The R3150N does not respond to transients that are short pulse width / large overdrive voltage or long pulse
width/small overdrive voltage. Any combination of pulse width and overdrive voltage above the curve generates
a reset signal.
The overdrive voltage indicates between the minimum value of input voltage (VDD or VSENSE) and –VDET, as
shown in Figure 2.
R3150NxxxA/B
R3150NxxxE/F
Figure 1. Minimum Pulse Width at VDD/SENSE vs. Overdrive Voltage
Pulse Width
VDD / VSENSE
−VDET
Overdrive Voltage
Figure 2. VDD/VSENSE Input Waveform
19
R3150N
No. EA-230-210222
RELEASE OPERATION VS. GLITCH INPUT VOLTAGE
The R3150N has built-in rejection of fast transients on the VDD (R3150NxxxA/B) or SENSE (R3150NxxxE/F)
pins. The rejection of transients depends on both the pulse width and the overdrive voltage, as shown in Figure
3. The R3150N does not respond to transients that are short pulse width/large overdrive voltage or long pulse
width/small overdrive voltage. Any combination of pulse width and overdrive voltage above the curve generates
a reset signal. The overdrive voltage indicates between the maximum value of input voltage (VDD or VSENSE)
and +VDET, as shown in Figure 4.
R3150NxxxA/B
R3150NxxxE/F
Figure 3. Minimum Pulse Width at VDD/SENSE vs. Overdrive Voltage
Overdrive Voltage
+VDET
VDD / VSENSE
Pulse Width
Figure 4. VDD/VSENSE Input Waveform
20
R3150N
No. EA-230-210222
TIMING CHART
R3150NxxxA/B (VDD Voltage Detection Type)
+VDET
VDD
-VDET
VDDL
treset
tdelay
treset
tdelay
Pull-up Voltage
VDOUT
Undefined
R3150NxxxA
+VDET
VDD
-VDET
treset
tdelay
treset
tdelay
Pull-up Voltage
VDOUT
R3150NxxxB
21
R3150N
No. EA-230-210222
R3150NxxxE/F (SENSE Voltage Detection Type)
VDD
VDDL
+VDET
VSENSE
-VDET
tdelay
treset
tdelay
treset
Pull-up Voltage
VDOUT
Undefined
Undefined
R3150NxxxE
VDD
+VDET
-VDET
VSENSE
tdelay
treset
tdelay
treset
Pull-up Voltage
VDOUT
R3150NxxxF
22
R3150N
No. EA-230-210222
APPLICATION INFORMATION
TYPICAL APPLICATION
VR or DC/DC
VDD
CD
R3150NxxxA/B
CR
CD
GND
DOUT
Microprocessor
CR
R3150NxxxA/B Typical Application
VR or DC/DC
SENSE
VDD
CD
R3150NxxxE/F
5V
CR
CD
GND
DOUT
Microprocessor
CR
R3150NxxxE/F Typical Application
23
R3150N
No. EA-230-210222
TECHNICAL NOTES
When connecting resistors to the device’s input pin
When connecting a resistor (R1) to an input of this device, the input voltage decreases by [Device’s
Consumption Current] x [Resistance Value] only. And, the cross conduction current (1), which occurs when
changing from the detecting state to the release state, is decreased the input voltage by [Cross Conduction
Current] x [Resistance Value] only. And then, this device will enter the re-detecting state if the input voltage
reduction is larger than the difference between the detector voltage and the released voltage.
When the input resistance value is large and the VDD is gone up at mildly in the vicinity of the released voltage,
repeating the above operation may result in the occurrence of output.
As shown in Figure A/B, set R1 to become 100 kΩ or less as a guide, and connect CIN of 0.1 μF and more to
between the input pin and GND. Besides, make evaluations including temperature properties under the actual
usage condition, with using the evaluation board like this way. As result, make sure that the cross conduction
current has no problem.
R1
R1
VDD
CIN
(2)
Voltage
VDD
R2
CIN
(2)
OUT pin
Detector
GND
Figure A
Voltage
OUT pin
Detector
GND
Figure B
2
(1)
(2)
In the CMOS output type, a charging current for OUT pin is included.
Note the bias dependence of capacitors.
24
R3150N
No. EA-230-210222
Prohibited Area of Supply Voltage Fluctuations (VDD Voltage Detection Type)
As for the steep change of the supply voltages in the prohibited area as shown in Figure C, the detector may
cause a false detection if the supply voltage is over the detector threshold, as shown in Figure D. In addition,
the detector may take an incorrect detect output delay time if the supply voltage is less than –VDET, as shown
in Figure E.
Figure C. Prohibited Area
VDD
VDD
tf
tf
+VDET
+VDET
Vp-p
Vp-p
-VDET
-VDET
3.6V
GND
GND
Figure D
Figure E
25
R3150N
No. EA-230-210222
TYPICAL CHARACTERISTICS
Note: Typical Characteristics are intended to be used as reference data; they are not guaranteed.
1) Supply Current vs. Input Voltage
R3150NxxxA/B (-VDET = 5.0 V, +VDET = 5.3 V)
Ta=105°C
Ta=25°C
Ta= -40°C
R3150NxxxA/B (-VDET = 6.4 V, +VDET = 7.3 V)
Ta=105°C
Ta=25°C
Ta= -40°C
R3150NxxxA/B (-VDET = 10.0 V, +VDET = 11.0 V)
Ta=105°C
Ta=25°C
Ta= -40°C
R3150NxxxE/F (VSENSE = -VDET - 0.1 V)
Ta=105°C
Ta=25°C
Ta= -40°C
R3150NxxxE/F (VSENSE = +VDET + 0.1 V)
Ta=105°C
Ta=25°C
Ta= -40°C
26
R3150N
No. EA-230-210222
2) Detector Threshold vs. Temperature
R3150NxxxA/B (-VDET = 5.0 V)
Temperature Ta (°C)
R3150NxxxA/B (-VDET = 6.4 V)
Temperature Ta (°C)
R3150NxxxA/B (-VDET = 10.0 V)
Temperature Ta (°C)
R3150NxxxE/F (-VDET = 5.0 V)
Temperature Ta (°C)
R3150NxxxE/F (-VDET = 6.4 V)
Temperature Ta (°C)
R3150NxxxE/F (-VDET = 10.0 V)
Temperature Ta (°C)
27
R3150N
No. EA-230-210222
3) Release Voltage vs. Temperature
R3150NxxxA/B (+VDET = 5.3 V)
Temperature Ta (°C)
R3150NxxxA/B (+VDET = 7.3 V)
Temperature Ta (°C)
R3150NxxxA/B (+VDET = 11.0 V)
Temperature Ta (°C)
R3150NxxxE/F (+VDET = 5.3 V)
Temperature Ta (°C)
R3150NxxxE/F (+VDET = 7.3 V)
Temperature Ta (°C)
R3150NxxxE/F (+VDET = 11.0 V)
Temperature Ta (°C)
28
R3150N
No. EA-230-210222
4) Detector Threshold vs. Input Voltage
R3150NxxxE/F (-VDET = 5.0 V)
Ta=25°C
Ta=105°C
Ta= -40°C
R3150NxxxE/F (-VDET = 10.0 V)
Ta=25°C
Ta=105°C
Ta= -40°C
5) Release Voltage vs. Input Voltage
R3150NxxxE/F (+VDET = 5.3 V)
Ta=25°C
Ta=105°C
Ta= -40°C
R3150NxxxE/F (+VDET = 11.0 V)
Ta=25°C
Ta=- 40°C
Ta= 105°C
6) Output Voltage vs. Input Voltage (Ta = 25°C, DOUT pin is pulled-up to 5 V and 100 kΩ）
R3150NxxxA (-VDET = 5.0 V, +VDET = 5.3 V)
R3150NxxxB (-VDET = 5.0 V, +VDET = 5.3 V)
29
R3150N
No. EA-230-210222
R3150NxxxA (-VDET = 10.0 V, +VDET = 11.0 V)
R3150NxxxB (-VDET = 10.0 V, +VDET = 11.0 V)
7) Output Voltage vs. SENSE pin Input Voltage (Ta = 25°C, DOUT pin is pulled-up to 5 V and 100 kΩ）
R3150NxxxE (-VDET = 5.0 V, +VDET = 5.3 V)
R3150NxxxF (-VDET = 5.0 V, +VDET = 5.3 V)
R3150NxxxE (-VDET = 10.0 V, +VDET = 11.0 V)
R3150NxxxF (-VDET = 10.0 V, +VDET = 11.0 V)
30
R3150N
No. EA-230-210222
8) Nch Driver Output Current vs. Input Voltage
R3150NxxxA (+VDET = 5.3 V, VDOUT = 0.05 V)
R3150NxxxB (+VDET = 5.3 V, VDOUT = 0.05 V)
Ta= - 40°C
Ta= 25°C
Ta= 105°C
Ta= - 40°C
Ta= 25°C
Ta= 105°C
R3150NxxxE (VSENSE = -VDET - 1.0 V, VDOUT = 0.05 V)
R3150NxxxF (VSENSE = +VDET + 1.0 V, VDOUT = 0.05 V)
Ta= - 40°C
Ta= 25°C
Ta= 105°C
9) Nch Driver Output Current vs. VDS
31
R3150N
No. EA-230-210222
10) Output Reset Time vs. Temperature (CR = 1.0 µF)
R3150NxxxA/ B
Temperature Ta (°C)
R3150NxxxE/ F
Temperature Ta (°C)
11) Output Delay Time vs. Temperature (CD = 1.0 µF)
R3150NxxxA/ B
Temperature Ta (°C)
12) Detector Threshold vs. Input Voltage
R3150NxxxE/F
Ta= - 40°C
Ta= 25°C
Ta= 105°C
R3150NxxxE/ F
Temperature Ta (°C)
13) Release Voltage vs. Input Voltage
R3150NxxxE/F
Ta= - 40°C
Ta= 25°C
Ta= 105°C
32
R3150N
No. EA-230-210222
14) Detector or Release Delay Time vs. CD pin CR pin External Capacity (Ta = 25°C)
R3150NxxxA/B
R3150NxxxE/F
33
POWER DISSIPATION
SOT-23-6
Ver. A
The power dissipation of the package is dependent on PCB material, layout, and environmental conditions.
The following measurement conditions are based on JEDEC STD. 51-7.
Measurement Conditions
Item
Measurement Conditions
Environment
Mounting on Board (Wind Velocity = 0 m/s)
Board Material
Glass Cloth Epoxy Plastic (Four-Layer Board)
Board Dimensions
76.2 mm × 114.3 mm × 0.8 mm
Copper Ratio
Outer Layer (First Layer): Less than 95% of 50 mm Square
Inner Layers (Second and Third Layers): Approx. 100% of 50 mm Square
Outer Layer (Fourth Layer): Approx. 100% of 50 mm Square
Through-holes
φ 0.3 mm × 7 pcs
Measurement Result
(Ta = 25°C, Tjmax = 125°C)
Item
Measurement Result
Power Dissipation
660 mW
Thermal Resistance (θja)
θja = 150°C/W
Thermal Characterization Parameter (ψjt)
ψjt = 51°C/W
θja: Junction-to-Ambient Thermal Resistance
ψjt: Junction-to-Top Thermal Characterization Parameter
1000
900
Power Dissipation (mW)
800
700
660
600
500
400
300
200
100
0
0
25
50
75
100 105 125
150
Ambient Temperature (°C)
Power Dissipation vs. Ambient Temperature
Measurement Board Pattern
i
PACKAGE DIMENSIONS
SOT-23-6
Ver. A
2.9±0.2
+0.2
1.1-0.1
1.9±0.2
4
1
2
0 to 0.1
0.2MIN.
5
+0.2
1.6-0.1
6
0.8±0.1
(0.95)
2.8±0.3
(0.95)
3
+0.1
0.4-0.2
+0.1
0.15-0.05
Unit : mm
SOT-23-6 Package Dimensions
i
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production without notice for reasons such as improvement. Therefore, before deciding to use the products, please
refer to Ricoh sales representatives for the latest information thereon.
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3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise
taking out of your country the products or the technical information described herein.
4. The technical information described in this document shows typical characteristics of and example application circuits
for the products. The release of such information is not to be construed as a warranty of or a grant of license under
Ricoh's or any third party's intellectual property rights or any other rights.
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applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products,
amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality
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in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and
transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us.
6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products
are likely to fail with certain probability. In order to prevent any injury to persons or damages to property resulting from
such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy
feature, fire containment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or
damage arising from misuse or inappropriate use of the products.
7. Anti-radiation design is not implemented in the products described in this document.
8. The X-ray exposure can influence functions and characteristics of the products. Confirm the product functions and
characteristics in the evaluation stage.
9. WLCSP products should be used in light shielded environments. The light exposure can influence functions and
characteristics of the products under operation or storage.
10. There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the
case of recognizing the marking characteristic with AOI, please contact Ricoh sales or our distributor before attempting
to use AOI.
11. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or
the technical information.
Halogen Free
Ricoh is committed to reducing the environmental loading materials in electrical devices
with a view to contributing to the protection of human health and the environment.
Ricoh has been providing RoHS compliant products since April 1, 2006 and Halogen-free products since
April 1, 2012.
Official website
https://www.n-redc.co.jp/en/
Contact us
https://www.n-redc.co.jp/en/buy/
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