R3500S Series
AEC-Q100 Compliant
42 V Input 4ch Window Voltage Detector for Automotive Applications
No. EC-521-210927
OVERVIEW
The R3500S is a 4ch window voltage detector with manual reset function suited for systems requiring
functional safety. This device monitors over and under voltage from the multiple power supplies to SoCs,
memories and sensors to continuously supervise the system operating at normal voltage.
KEY BENEFITS
● Power supply from battery enables the voltage detector to operate independently from the power source.
● High-accuracy detection of the over and under voltages from -1.25% to 0.75% and the hysteresis of Max. 0.75%.
● Management of multiple power supplies with a single chip to save space.
KEY SPECIFICATIONS
TYPICAL APPLICATION CIRCUIT
● Operating Voltage Range (Max. Rating):
3.0 V to 42.0 V (50.0 V)
● Operating Temperature Range: −40°C to 125°C
● Supply Current: Typ. 10 µA
● Overvoltage Detection: 1.0 V to 5.9 V (0.01 V step)
● Undervoltage Detection:0.9 V to 5.0 V (0.01 V step)
● Detection Release Hysteresis: Max. 0.75%
(−40°C to 125°C)
● Detection Voltage Accuracy:
±0.5% (Ta = 25°C)
-1.25% to 0.75% (−40°C to 125°C)
● Detection Delay Time: Typ.20 µs
● Release Delay Time: Typ. 4 ms (CD = 0.01 µF)
● Output Type: Nch. Open Drain
Battery
DCDC
Vin1
VDD
DCDC
Vin2
DCDC
Vin3
LDO
Vin4
SOC
SENSE1
SENSE2
SENSE3
SENSE4
R3500S
CD
R4 R3 R2 R1 RVCCDET
VDD
CD1
VCCDET
GPI0
CD2
DOUT1
GPI1
CD3
DOUT2
GPI2
CD4
DOUT3
GPI3
MR
DOUT4
GPI4
GPO
GND
PACKAGE
SELECTION GUIDE
Product Name
Package
Quantity per Reel
R3500SxxxA-E2-#E
HSOP-18
1,000 pcs
xxx: The combination of an overvoltage detection setting
voltage (VOVSET) and an undervoltage detection setting
voltage (VUVSET) applied to 4ch.
Refer to “Product-Specific Electrical Characteristic” for
details
#: Quality Class
Refer to “SELECTION GUIDE” for details.
HSOP-18
5.2 x 6.2 x 1.45 (mm)
APPLICATIONS
● Power supply voltage monitoring for systems which require fault detection, such as ECU and ADAS
● Power supply voltage monitoring for control units including EV inverters and charge controllers
1
R3500S
No. EC-521-210927
SELECTION GUIDE
The overvoltage detection setting voltage (VOVSET) and the undervoltage detection setting voltage (VUVSET) are
user-selectable options.
Selection Guide
Product Name
R3500SxxxA-E2-#E
Package
Quantity per Reel
Pb Free
Halogen Free
HSOP-18
1,000 pcs
Yes
Yes
xxx: The combination of an overvoltage detection setting voltage (VOVSET) and an undervoltage detection
setting voltage (VUVSET).
Refer to Product-specific Electrical Characteristics for more details.
#: Quality Class
#
Operating Temp. Range
Test Temp.
A
−40°C to 125°C
25°C, High
K
−40°C to 125°C
Low, 25°C, High
BLOCK DIAGRAM
VDD
INT
Regulator
SENSE
1-4
VCC
OVLO
UVLO
VCCDET
UVCMP 1 - 4
OVCMP 1 - 4
UVCMP1 - 4
+
－
GND
Delay
Circuit
1-4
VREF
1 - 4 OVCMP
1-4
DOUT
1-4
+
VCC
－
DRV
1-4
MR
GND
MR
GND
CD 1- 4
R3500S Block Diagram
2
R3500S
No. EC-521-210927
PIN DESCRIPTIONS
Top View
Bottom View
R3500S (HSOP-18) Pin Configuration
∗ The tab on the bottom of the package shown by blue circle is substrate potential (GND).
It is recommended that this tab be connected to the ground plane pin on the board.
R3500S Pin Description
Pin No.
Symbol
Description
1
VDD
2
NC
3
VCCDET(2)
4
SENSE1
VD Voltage SENSE Pin 1
5
SENSE2
VD Voltage SENSE Pin 2
6
SENSE3
VD Voltage SENSE Pin 3
7
SENSE4
VD Voltage SENSE Pin 4
8
NC
No Connection
9
MR
Manual Reset Pin (“Low” at reset)
10
GND
GND Pin
11
CD4
VD Release Delay Time Set Pin 4 (“OPEN” when not connected)
12
CD3
VD Release Delay Time Set Pin 3 (“OPEN” when not connected)
13
CD2
VD Release Delay Time Set Pin 2 (“OPEN” when not connected)
14
CD1
VD Release Delay Time Set Pin 1 (“OPEN” when not connected)
15
DOUT4(3)
Over/Under Voltage Detection Output Pin 4 (“Low” at detection)
16
DOUT3(3)
Over/Under Voltage Detection Output Pin 3 (“Low” at detection)
17
DOUT2(3)
Over/Under Voltage Detection Output Pin 2 (“Low” at detection)
18
DOUT1(3)
Over/Under Voltage Detection Output Pin 1 (“Low” at detection)
Supply Voltage Pin
No Connection(1)
Over/Under Voltage Detection for Internal Supply Output Pin
(“Low” at detection)
NC pin should be set to “OPEN.
VCCDET pin is required to pull up to a suitable voltage with an external resistor.
(3) DOUT1 to 4 pins are required to pull up to a suitable voltage with an external resistor.
(1)
(2)
3
R3500S
No. EC-521-210927
Internal Equivalent Circuit for Each Pin
DOUT1 to 4 Pin
DOUT1 - 4
VCCDET Pin
VCCDET
Driver
CD1 to 4 Pin
VCC
Driver
SENSE1 to 4 Pin
SENSE1 - 4
CD1 - 4
Driver
MR Pin
VCC
MR
4
R3500S
No. EC-521-210927
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Symbol
VDD
VCD1 to 4
VDOUT1 to 4
VVCCDET
VSENSE1 to 4
VMR
IDOUT1 to 4
IVCCDET
Parameter
Rating
Unit
Supply Voltage
−0.3 to 50.0
V
Peak Voltage(1)
60
V
CD1 to 4 Pin Output Voltage
−0.3 to 20.0
V
DOUT1 to 4 Pin Output Voltage
−0.3 to 20.0
V
VCCDET Pin Output Voltage
−0.3 to 20.0
V
SENSE1 to 4 Pin Input Voltage
−0.3 to 20.0
V
MR Pin Voltage
−0.3 to 20.0
V
DOUT1 to 4 Pin Output Current
30
mA
VCCDET Pin Output Current
15
mA
Refer to Appendix
“POWER DISSIPATION”
PD
Power Dissipation
Tj
Junction Temperature Range
−40 to 150
°C
Tstg
Storage Temperature Range
−55 to 150
°C
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause permanent damage
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 are not assured.
RECOMMENDED OPERATING CONDITIONS
Recommended Operating Conditions
Symbol
Parameter
VDD
VSENSE1 to 4
VMR
Ta
Rating
Unit
Operating Voltage
3.0 to 42
V
SENSE 1 to 4 Pin Input Voltage
0 to 6.0
V
MR Pin Voltage
0 to 6.0
V
−40 to 125
°C
Operating Temperature Range
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 ratings 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)
Duration Time: within 200 ms
5
R3500S
No. EC-521-210927
ELECTRICAL CHARACTERISTICS
VDD = 14 V, CD = 0.01 µF, pulled-up to 5 V with 100 kΩ, unless otherwise specified.
The specifications surrounded by
are guaranteed by design engineering at -40°C ≤ Ta ≤ 125°C.
R3500S (-AE) Electrical Characteristics
Symbol
Parameter
Typ.
Max.
Unit
x1.005
V
–40°C ≤ Ta ≤ 125°C
x0.9875
x1.0075
V
Ta = 25°C
x0.995
x1.005
V
–40°C ≤ Ta ≤ 125°C
x0.9875
x1.0075
V
Overvoltage (OV)
Threshold Hysteresis
VOVDET VOVDET VOVDET
×0.0025 ×0.005 ×0.0075
V
Undervoltage (UV)
Threshold Hysteresis
VUVDET VUVDET VUVDET
×0.0025 ×0.005 ×0.0075
V
10
25
µA
30
MΩ
VUVDET1 to 4
Undervoltage (UV)
Detector Threshold
VOVHYS1 to 4
VUVHYS1 to 4
VUVLO
Min.
x0.995
Overvoltage (OV)
Detector Threshold
RSENSE1 to 4
Conditions
Ta = 25°C
VOVDET1 to 4
ISS
(Ta= 25°C)
Supply Current
VDD = 42 V,
VUVDET < VSENSE < VOVDET
SENSE1 to 4 Pin
Resistance( 1)
2.5
UVLO Detector Voltage
1.8
2.8
V
VUVLOHYS
UVLO Threshold Hysteresis
0.1
0.2
V
VDDLDOUT1 to 4
Supply Voltage with
Low-operating DOUT1 to 4
Pin Output Voltage(2)
1.7
V
0.75
1.5
mA
0
1.0
µA
IDOUT1 to 4
DOUT1 to 4 Pin Driver
Output Current
VDD = 3.0, VDS = 0.1 V
ILEAK1 to 4
DOUT1 to 4 Pin Leak
Current
VDOUT1 to 4 = 5.5 V
VMRH
MR Input Voltage “High”
VMRL
MR Input Voltage “Low”
tDELAY1 to 4
IVCCDET
ILEAKVCCDET
0.37
1.6
V
0.5
V
Release Delay Time
CD = 0.01 µF
2.5
4
8
ms
VCCDET Pin
Driver Output Current
VDD = 3.0, VDS = 0.1 V
0.15
0.4
0.8
mA
VCCDET Pin
Driver Leakage Current
VDS = 5.5 V
0
0.3
µA
All test items listed in Electrical Characteristics are done under the pulse load condition (Tj ≈ Ta = 25°C).
(1)
(2)
Typ. value is varied depending on the set value of detection voltage.
Minimum value of the power supply voltage when the detection output voltage becomes 0.1 V or lower.
(Pull-up resistance: 100 kΩ, Pull-up voltage: 5 V)
6
R3500S
No. EC-521-210927
VDD = 14 V, CD = 0.01 µF, pulled-up to 5 V with 100 kΩ, unless otherwise specified.
R3500S (-KE) Electrical Characteristics
Symbol
Parameter
Typ.
Max.
Unit
x1.005
V
–40°C ≤ Ta ≤ 125°C
x0.9875
x1.0075
V
Ta = 25°C
x0.995
x1.005
V
–40°C ≤ Ta ≤ 125°C
x0.9875
x1.0075
V
Overvoltage (OV)
Threshold Hysteresis
VOVDET VOVDET VOVDET
×0.0025 ×0.005 ×0.0075
V
Undervoltage (UV)
Threshold Hysteresis
VUVDET VUVDET VUVDET
×0.0025 ×0.005 ×0.0075
V
10
25
µA
30
MΩ
VUVDET1 to 4
Undervoltage (UV)
Detector Threshold
VOVHYS1 to 4
VUVHYS1 to 4
VUVLO
Min.
x0.995
Overvoltage (OV)
Detector Threshold
RSENSE1 to 4
Conditions
Ta = 25°C
VOVDET1 to 4
ISS
(–40°C ≤ Ta ≤ 125°C)
Supply Current
VDD = 42 V,
VUVDET < VSENSE < VOVDET
SENSE1 to 4 Pin
Resistance( 1)
2.5
UVLO Detector Voltage
1.8
2.8
V
VUVLOHYS
UVLO Threshold Hysteresis
0.1
0.2
V
VDDLDOUT1 to 4
Supply Voltage with
Low-operating DOUT1 to 4
Pin Output Voltage(2)
1.7
V
0.75
1.5
mA
0
1.0
µA
IDOUT1 to 4
DOUT1 to 4 Pin Driver
Output Current
VDD = 3.0, VDS = 0.1 V
ILEAK1 to 4
DOUT1 to 4 Pin Leak
Current
VDOUT1 to 4 = 5.5 V
VMRH
MR Input Voltage “High”
VMRL
MR Input Voltage “Low”
tDELAY1 to 4
IVCCDET
ILEAKVCCDET
(1)
(2)
0.37
1.6
V
0.5
V
Release Delay Time
CD = 0.01 µF
2.5
4
8
ms
VCCDET Pin
Driver Output Current
VDD = 3.0, VDS = 0.1 V
0.15
0.4
0.8
mA
VCCDET Pin
Driver Leakage Current
VDS = 5.5 V
0
0.3
µA
Typ. value is varied depending on the set value of detection voltage.
Minimum value of the power supply voltage when the detection output voltage becomes 0.1 V or lower.
(Pull-up resistance: 100 kΩ, Pull-up voltage: 5 V)
7
R3500S
No. EC-521-210927
VDD = 14 V, CD = 0.01 µF, pulled-up to 5 V with 100 kΩ, unless otherwise specfied.
R3500S (-AE) Product-specific Electrical Characteristics
Product name
1ch
R3500S001A
2ch
3ch
4ch
1ch
R3500S002A
2ch
3ch
4ch
1ch
R3500S003A
2ch
3ch
4ch
1ch
R3500S004A
2ch
3ch
4ch
1ch
R3500S005A
2ch
3ch
4ch
1ch
R3500S006A
2ch
3ch
4ch
1ch
R3500S007A
2ch
3ch
4ch
1ch
R3500S008A
2ch
3ch
4ch
1ch
R3500S009A
2ch
3ch
4ch
1ch
R3500S010A
2ch
3ch
4ch
1ch
R3500S011A
2ch
3ch
4ch
Min.
VUVDET (V)
Typ.
Max.
4.796
4.82
4.844
3.165
3.18
1.732
1.055
(Ta = 25°C)
Min.
VOVDET (V)
Typ.
Max.
5.184
5.21
5.236
3.195
3.413
3.43
3.447
1.74
1.748
1.861
1.87
1.879
1.06
1.065
1.135
1.14
1.145
4.796
4.82
4.844
5.184
5.21
5.236
3.165
3.18
3.195
3.413
3.43
3.447
1.732
1.74
1.748
1.861
1.87
1.879
1.155
1.16
1.165
1.244
1.25
1.256
4.796
4.82
4.844
5.184
5.21
5.236
3.165
3.18
3.195
3.413
3.43
3.447
1.443
1.45
1.457
1.553
1.56
1.567
0.966
0.97
0.974
1.035
1.04
1.045
4.796
4.82
4.844
5.184
5.21
5.236
3.165
3.18
3.195
3.413
3.43
3.447
2.398
2.41
2.422
2.587
2.60
2.613
1.055
1.06
1.065
1.135
1.14
1.145
0.966
0.97
0.974
1.025
1.03
1.035
1.702
1.71
1.718
1.881
1.89
1.899
1.702
1.71
1.718
1.881
1.89
1.899
3.125
3.14
3.155
3.453
3.47
3.487
0.946
0.95
0.954
1.045
1.05
1.055
1.155
1.16
1.165
1.244
1.25
1.256
1.702
1.71
1.718
1.881
1.89
1.899
3.125
3.14
3.155
3.453
3.47
3.487
0.946
0.95
0.954
1.045
1.05
1.055
1.274
1.28
1.286
1.413
1.42
1.427
1.702
1.71
1.718
1.881
1.89
1.899
3.125
3.14
3.155
3.453
3.47
3.487
1.125
1.13
1.135
1.364
1.37
1.376
2.985
3.00
3.015
3.582
3.60
3.618
3.125
3.14
3.155
3.453
3.47
3.487
3.125
3.14
3.155
3.453
3.47
3.487
3.025
3.04
3.055
3.553
3.57
3.587
3.025
3.04
3.055
3.553
3.57
3.587
0.916
0.92
0.924
1.085
1.09
1.095
0.916
0.92
0.924
1.085
1.09
1.095
4.538
4.56
4.582
5.423
5.45
5.477
2.995
3.01
3.025
3.582
3.60
3.618
1.135
1.14
1.145
1.354
1.36
1.366
1.165
1.17
1.175
1.403
1.41
1.417
2.727
2.74
2.753
3.264
3.28
3.296
1.632
1.64
1.648
1.961
1.97
1.979
0.966
0.97
0.974
1.234
1.24
1.246
2.995
3.01
3.025
3.582
3.60
3.618
8
R3500S
No. EC-521-210927
VDD = 14 V, CD = 0.01 µF, pulled-up to 5 V with 100 kΩ, unless otherwise specfied.
are guaranteed by design engineering at −40°C ≤ Ta ≤ 125°C.
The specifications surrounded by
(−40°C ≤ Ta ≤ 125°C)
R3500S (-AE) Product-specific Electrical Characteristics
Product name
1ch
R3500S001A
2ch
3ch
4ch
1ch
R3500S002A
2ch
3ch
4ch
1ch
R3500S003A
2ch
3ch
4ch
1ch
R3500S004A
2ch
3ch
4ch
1ch
R3500S005A
2ch
3ch
4ch
1ch
R3500S006A
2ch
3ch
4ch
1ch
R3500S007A
2ch
3ch
4ch
1ch
R3500S008A
2ch
3ch
4ch
1ch
R3500S009A
2ch
3ch
4ch
1ch
R3500S010A
2ch
3ch
4ch
1ch
R3500S011A
2ch
3ch
4ch
Min.
VUVDET (V)
Typ.
Max.
Min.
VOVDET (V)
Typ.
Max.
Min.
VUVHYS (V)
Typ.
Max.
Min.
VOVHYS (V)
Typ.
Max.
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
1.719
1.74
1.753
1.847
1.87
1.884
0.005
0.009
0.013
0.005
0.009
0.014
1.047
1.06
1.067
1.126
1.14
1.148
0.003
0.005
0.007
0.003
0.006
0.008
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
1.719
1.74
1.753
1.847
1.87
1.884
0.005
0.009
0.013
0.005
0.009
0.014
1.146
1.16
1.168
1.235
1.25
1.259
0.003
0.006
0.008
0.004
0.006
0.009
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
1.432
1.45
1.460
1.541
1.56
1.571
0.004
0.007
0.010
0.004
0.008
0.011
0.958
0.97
0.977
1.027
1.04
1.047
0.003
0.005
0.007
0.003
0.005
0.007
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
2.380
2.41
2.428
2.568
2.60
2.619
0.007
0.012
0.018
0.007
0.013
0.019
1.047
1.06
1.067
1.126
1.14
1.148
0.003
0.005
0.007
0.003
0.006
0.008
0.958
0.97
0.977
1.018
1.03
1.037
0.003
0.005
0.007
0.003
0.005
0.007
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
0.939
0.95
0.957
1.037
1.05
1.057
0.003
0.005
0.007
0.003
0.005
0.007
1.146
1.16
1.168
1.235
1.25
1.259
0.003
0.006
0.008
0.004
0.006
0.009
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
0.939
0.95
0.957
1.037
1.05
1.057
0.003
0.005
0.007
0.003
0.005
0.007
1.264
1.28
1.289
1.403
1.42
1.430
0.004
0.006
0.009
0.004
0.007
0.010
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
1.116
1.13
1.138
1.353
1.37
1.380
0.003
0.006
0.008
0.004
0.007
0.010
2.963
3.00
3.022
3.555
3.60
3.627
0.008
0.015
0.022
0.009
0.018
0.027
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
3.002
3.04
3.062
3.526
3.57
3.596
0.008
0.015
0.022
0.009
0.018
0.026
3.002
3.04
3.062
3.526
3.57
3.596
0.008
0.015
0.022
0.009
0.018
0.026
0.909
0.92
0.926
1.077
1.09
1.098
0.003
0.005
0.006
0.003
0.005
0.008
0.909
0.92
0.926
1.077
1.09
1.098
0.003
0.005
0.006
0.003
0.005
0.008
4.503
4.56
4.594
5.382
5.45
5.490
0.012
0.023
0.034
0.014
0.027
0.040
2.973
3.01
3.032
3.555
3.60
3.627
0.008
0.015
0.022
0.009
0.018
0.027
1.126
1.14
1.148
1.343
1.36
1.370
0.003
0.006
0.008
0.004
0.007
0.010
1.156
1.17
1.178
1.393
1.41
1.420
0.003
0.006
0.008
0.004
0.007
0.010
2.706
2.74
2.760
3.239
3.28
3.304
0.007
0.014
0.020
0.009
0.016
0.024
1.620
1.64
1.652
1.946
1.97
1.984
0.005
0.008
0.012
0.005
0.010
0.014
0.958
0.97
0.977
1.225
1.24
1.249
0.003
0.005
0.007
0.004
0.006
0.009
2.973
3.01
3.032
3.555
3.60
3.627
0.008
0.015
0.022
0.009
0.018
0.027
9
R3500S
No. EC-521-210927
VDD = 14 V, CD = 0.01 µF, pulled-up to 5 V with 100 kΩ, unless otherwise specfied.
R3500S (-KE) Product-specific Electrical Characteristics
Product name
1ch
R3500S001A
2ch
3ch
4ch
1ch
R3500S002A
2ch
3ch
4ch
1ch
R3500S003A
2ch
3ch
4ch
1ch
R3500S004A
2ch
3ch
4ch
1ch
R3500S005A
2ch
3ch
4ch
1ch
R3500S006A
2ch
3ch
4ch
1ch
R3500S007A
2ch
3ch
4ch
1ch
R3500S008A
2ch
3ch
4ch
1ch
R3500S009A
2ch
3ch
4ch
1ch
R3500S010A
2ch
3ch
4ch
1ch
R3500S011A
2ch
3ch
4ch
(Ta = 25°C)
Min.
VUVDET (V)
Typ.
Max.
Min.
VOVDET (V)
Typ.
Max.
4.796
4.82
4.844
5.184
5.21
5.236
3.165
3.18
3.195
3.413
3.43
3.447
1.732
1.74
1.748
1.861
1.87
1.879
1.055
1.06
1.065
1.135
1.14
1.145
4.796
4.82
4.844
5.184
5.21
5.236
3.165
3.18
3.195
3.413
3.43
3.447
1.732
1.74
1.748
1.861
1.87
1.879
1.155
1.16
1.165
1.244
1.25
1.256
4.796
4.82
4.844
5.184
5.21
5.236
3.165
3.18
3.195
3.413
3.43
3.447
1.443
1.45
1.457
1.553
1.56
1.567
0.966
0.97
0.974
1.035
1.04
1.045
4.796
4.82
4.844
5.184
5.21
5.236
3.165
3.18
3.195
3.413
3.43
3.447
2.398
2.41
2.422
2.587
2.60
2.613
1.055
1.06
1.065
1.135
1.14
1.145
0.966
0.97
0.974
1.025
1.03
1.035
1.702
1.71
1.718
1.881
1.89
1.899
1.702
1.71
1.718
1.881
1.89
1.899
3.125
3.14
3.155
3.453
3.47
3.487
0.946
0.95
0.954
1.045
1.05
1.055
1.155
1.16
1.165
1.244
1.25
1.256
1.702
1.71
1.718
1.881
1.89
1.899
3.125
3.14
3.155
3.453
3.47
3.487
0.946
0.95
0.954
1.045
1.05
1.055
1.274
1.28
1.286
1.413
1.42
1.427
1.702
1.71
1.718
1.881
1.89
1.899
3.125
3.14
3.155
3.453
3.47
3.487
1.125
1.13
1.135
1.364
1.37
1.376
2.985
3.00
3.015
3.582
3.60
3.618
3.125
3.14
3.155
3.453
3.47
3.487
3.125
3.14
3.155
3.453
3.47
3.487
3.025
3.04
3.055
3.553
3.57
3.587
3.025
3.04
3.055
3.553
3.57
3.587
0.916
0.92
0.924
1.085
1.09
1.095
0.916
0.92
0.924
1.085
1.09
1.095
4.538
4.56
4.582
5.423
5.45
5.477
2.995
3.01
3.025
3.582
3.60
3.618
1.135
1.14
1.145
1.354
1.36
1.366
1.165
1.17
1.175
1.403
1.41
1.417
2.727
2.74
2.753
3.264
3.28
3.296
1.632
1.64
1.648
1.961
1.97
1.979
0.966
0.97
0.974
1.234
1.24
1.246
2.995
3.01
3.025
3.582
3.60
3.618
10
R3500S
No. EC-521-210927
VDD = 14 V, CD = 0.01 µF, pulled-up to 5 V with 100 kΩ, unless otherwise specfied.
R3500S (-KE) Product-specific Electrical Characteristics
Product name
1ch
R3500S001A
2ch
3ch
4ch
1ch
R3500S002A
2ch
3ch
4ch
1ch
R3500S003A
2ch
3ch
4ch
1ch
R3500S004A
2ch
3ch
4ch
1ch
R3500S005A
2ch
3ch
4ch
1ch
R3500S006A
2ch
3ch
4ch
1ch
R3500S007A
2ch
3ch
4ch
1ch
R3500S008A
2ch
3ch
4ch
1ch
R3500S009A
2ch
3ch
4ch
1ch
R3500S010A
2ch
3ch
4ch
1ch
R3500S011A
2ch
3ch
4ch
Min.
VUVDET (V)
Typ.
Max.
Min.
VOVDET (V)
Typ.
Max.
(−40°C ≤ Ta ≤ 125°C)
Min.
VUVHYS (V)
Typ.
Max.
Min.
VOVHYS (V)
Typ.
Max.
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
1.719
1.74
1.753
1.847
1.87
1.884
0.005
0.009
0.013
0.005
0.009
0.014
1.047
1.06
1.067
1.126
1.14
1.148
0.003
0.005
0.007
0.003
0.006
0.008
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
1.719
1.74
1.753
1.847
1.87
1.884
0.005
0.009
0.013
0.005
0.009
0.014
1.146
1.16
1.168
1.235
1.25
1.259
0.003
0.006
0.008
0.004
0.006
0.009
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
1.432
1.45
1.460
1.541
1.56
1.571
0.004
0.007
0.010
0.004
0.008
0.011
0.958
0.97
0.977
1.027
1.04
1.047
0.003
0.005
0.007
0.003
0.005
0.007
4.760
4.82
4.856
5.145
5.21
5.249
0.013
0.024
0.036
0.014
0.026
0.039
3.141
3.18
3.203
3.388
3.43
3.455
0.008
0.016
0.023
0.009
0.017
0.025
2.380
2.41
2.428
2.568
2.60
2.619
0.007
0.012
0.018
0.007
0.013
0.019
1.047
1.06
1.067
1.126
1.14
1.148
0.003
0.005
0.007
0.003
0.006
0.008
0.958
0.97
0.977
1.018
1.03
1.037
0.003
0.005
0.007
0.003
0.005
0.007
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
0.939
0.95
0.957
1.037
1.05
1.057
0.003
0.005
0.007
0.003
0.005
0.007
1.146
1.16
1.168
1.235
1.25
1.259
0.003
0.006
0.008
0.004
0.006
0.009
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
0.939
0.95
0.957
1.037
1.05
1.057
0.003
0.005
0.007
0.003
0.005
0.007
1.264
1.28
1.289
1.403
1.42
1.430
0.004
0.006
0.009
0.004
0.007
0.010
1.689
1.71
1.722
1.867
1.89
1.904
0.005
0.009
0.012
0.005
0.009
0.014
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
1.116
1.13
1.138
1.353
1.37
1.380
0.003
0.006
0.008
0.004
0.007
0.010
2.963
3.00
3.022
3.555
3.60
3.627
0.008
0.015
0.022
0.009
0.018
0.027
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
3.101
3.14
3.163
3.427
3.47
3.496
0.008
0.016
0.023
0.009
0.017
0.026
3.002
3.04
3.062
3.526
3.57
3.596
0.008
0.015
0.022
0.009
0.018
0.026
3.002
3.04
3.062
3.526
3.57
3.596
0.008
0.015
0.022
0.009
0.018
0.026
0.909
0.92
0.926
1.077
1.09
1.098
0.003
0.005
0.006
0.003
0.005
0.008
0.909
0.92
0.926
1.077
1.09
1.098
0.003
0.005
0.006
0.003
0.005
0.008
4.503
4.56
4.594
5.382
5.45
5.490
0.012
0.023
0.034
0.014
0.027
0.040
2.973
3.01
3.032
3.555
3.60
3.627
0.008
0.015
0.022
0.009
0.018
0.027
1.126
1.14
1.148
1.343
1.36
1.370
0.003
0.006
0.008
0.004
0.007
0.010
1.156
1.17
1.178
1.393
1.41
1.420
0.003
0.006
0.008
0.004
0.007
0.010
2.706
2.74
2.760
3.239
3.28
3.304
0.007
0.014
0.020
0.009
0.016
0.024
1.620
1.64
1.652
1.946
1.97
1.984
0.005
0.008
0.012
0.005
0.010
0.014
0.958
0.97
0.977
1.225
1.24
1.249
0.003
0.005
0.007
0.004
0.006
0.009
2.973
3.01
3.032
3.555
3.60
3.627
0.008
0.015
0.022
0.009
0.018
0.027
11
R3500S
No. EC-521-210927
TYPICAL APPLICATION CIRCUIT
Battery
DCDC
Vin1
VDD
DCDC
Vin2
DCDC
Vin3
LDO
Vin4
SOC
SENSE1
SENSE2
SENSE3
SENSE4
R3500S
CD
R4 R3 R2 R1 RVCCDET
VDD
CD1
VCCDET
GPI0
CD2
DOUT1
GPI1
CD3
DOUT2
GPI2
CD4
DOUT3
GPI3
MR
DOUT4
GPI4
GPO
GND
R3500S Typical Application
External Components
Symbol
CD
Rn
RVCCDET
Description
Capacitors should be selected corresponding to the set Release Delay Time. Refer to “Delay
in Operation and Release Delay Time (tDELAY)” in THEORY OF OPERATION for details. When
the Release Delay Time is unnecessary, layout the circuit without any capacitors.
The on-resistance of the driver is max. 270 Ω calculated from the DOUTn (n=1 to 4) pin driver
output current shown in “Electrical Characteristics”. The maximum voltage at DOUTn=“Low”
is determined by the maximum on-resistance, pull-up voltage and Rn. The off-resistance of
the driver is min. 5.5 MΩ calculated from the driver leakage current shown in “Electrical
Characteristics”. The minimum voltage at DOUTn=“High” is determined by the minimum offresistance, pull-up voltage and Rn. Set the VCCDET pin in the same way.
“Electrical Characteristic” is evaluated in conditions that Pull-up voltage = 5 V and Rn = 100
kΩ. SENSEn and DOUTn pins should be set to open when they are not connected.
12
R3500S
No. EC-521-210927
THEORY OF OPERATION
UVLO Release Voltage: VUVLO+VUVLOHYS
VUVLO+VUVLOHYS
VDD
VSENSEn
VUVRELn
VUVLO UVLO Detection Voltage: V
UVLO
VOVDETn
Overvoltage Detection Voltage: VOVDETn
Overvoltage Release Voltage： VOVRELn
Undervoltage Release Voltage： VUVRELn
Undervoltage Detection Voltage： VUVDETn
VOVRELn
(n=1 to 4)
VUVDETn
VUVRELn
CDn
tDELAYn depends on the capacity
connected to the CDn pin.
tDELAY n
tDELAY n
tDELAY n
DOUTn
(1)
(2)
(3)
(4)
(1)
(5)
R3500S Timing Chart
(1) When the SENSEn pin voltage (VSENSEn) exceeds the undervoltage release voltage (VUVRELn), the DOUTn
pin outputs “High” after the release delay time (tDELAYn).
(2) When VSENSEn exceeds the overvoltage detection voltage (VOVDETn), the DOUTn pin outputs “Low” after
the detection delay time (Typ.20 µs) and this triggers the overvoltage detecting state.
(3) When VSENSEn drops below the overvoltage release voltage (VOVRELn), the DOUTn pin outputs “High” after
the release delay time (tDELAYn).
(4) When VSENSEn drops further below the undervoltage detection voltage (VUVDETn), the DOUTn pin outputs
“Low” after the detection delay time (Typ.20 µs) and this triggers the undervoltage detecting state.
(5) When the VDD pin voltage (VDD) drops below the UVLO detection voltage (VUVLO), the DOUTn pin outputs
“Low”. Note that DOUTn cannot maintain "Low" when the VDD pin voltage drops further and becomes
lower than VDDLDOUTn.
13
R3500S
No. EC-521-210927
Delay Operation and Release Delay Time (tDELAY)
At Undervoltage Detection
A higher voltage than the undervoltage release voltage (VUVRELn) supplied to the SENSEn pin triggers charging
of the external capacitor then the CDn pin voltage (VCDn) increases. The DOUTn pin voltage (VDOUTn) maintains
“Low” until VCDn reaches the CDn pin threshold voltage (VTCDn). When VCDn exceeds VTCDn, VDOUTn transitions
from “Low” to “High”. The release delay time (tDELAYn) is the period until VDOUTn transitions to “High” after the
SENSEn pin voltage (VSENSEn) exceeds VUVRELn. The output voltage transitions from “Low” to “High” and it leads
to discharging of the external capacitor. Without CD capacitors, the release delay time (Typ. 20 µs) becomes
short depending on the circuit delay and CDn pin stray capacitance. When the lower voltage than VUVDETn is
supplied to the SENSEn pin, the detection delay time (tPHLn) for which VDOUTn transitions from “High” to “Low”
is independent from the external capacitor and will be constant.
VUVRELn
VUVDETn
SENSEn Pin
VTCDn
CDn Pin Voltage
GND
DOUTn Pin
GND
Release Delay Time
(tDELAYn)
Detection Delay Time
(tPHLn)
Undervoltage Release Delay Timing Diagram
Calculation of Release Delay Time (tDELAY)
The typical value of the release delay time (tDELAYn) with the capacitance of the external capacitor (CD) is
calculated in the following equation:
tDELAYn (s) = 0.73 × CD (F) / (1.8×10-6)
tDELAYn is the period until the DOUTn pin voltage (VDOUTn) reaches 2.5 V after the pulse voltage of
(VUVDETn+VOVDETn) /2 V increased from (VUVDETn x 0.97) V is supplied to the SENSEn pin when VDOUTn is pulled
up to 5 V with 100 kΩ.
SENSEn Pin
(VUVDETn + VOVDETn) / 2 V
VUVRELn
VUVDETn
(VUVDETn⋅x 0.97) V
GND
5.0 V
DOUTn Pin
2.5 V
GND
tPHLn
tDELAYn
14
R3500S
No. EC-521-210927
At Overvoltage Detection
A lower voltage than the overvoltage release voltage (VOVRELn) supplied to the SENSEn pin triggers charging
of the external capacitor then the CDn pin voltage (VCDn) increases. The DOUTn pin voltage (VDOUTn) maintains
“Low” until VCDn reaches the CDn pin threshold voltage (VTCDn). When VCDn exceeds VTCDn, VDOUTn transitions
from “Low” to “High”. The release delay time (tDELAYn) is the period until VDOUTn transitions to “High” after the
SENSEn pin voltage (VSENSEn) exceeds VOVRELn. The output voltage transitions from “Low” to “High” and it leads
to discharging of the external capacitor. Without CD capacitors, the release delay time (Typ. 20 µs) becomes
short depending on the circuit delay and CDn pin stray capacitance. When the higher voltage than VOVDETn is
supplied to the SENSEn pin, the detection delay time (tPHLn) for which VDOUTn transitions from “High” to “Low”
is independent from the external capacitor and will be constant.
VOVDETn
VOVRELn
SENSEn Pin
VTCDn
CDn Pin Voltage
GND
DOUTn Pin
GND
Detection Delay Time
(tPHLn)
Release Delay Time
(tDELAYn)
Overvoltage Release Delay Timing Diagram
Calculation of Release Delay Time (tDELAY)
The typical value of the release delay time (tDELAYn) with the capacitance of the external capacitor (CD) is
calculated in the following equation:
tDELAYn (s) = 0.73 × CD (F) / (1.8×10-6)
tDELAYn is the period until the DOUTn pin voltage (VDOUTn) reaches 2.5 V after the pulse voltage of
(VUVDETn+VOVDETn) /2 V decreased from (VOVDETn x 1.03) V is supplied to the SENSEn pin when VDOUTn is pulled
up to 5 V with 100 kΩ.
(VOVDETn x 1.03) V
VOVDETn
VOVRELn
(VUVDETn + VOVDETn) / 2 V
SENSEn Pin
GND
5.0 V
DOUTn Pin
2.5 V
GND
tPHLn
tDELAYn
15
R3500S
No. EC-521-210927
Manual Reset Function with MR Pin
The manual reset function is to set DOUTn to "Low" by inputting "Low" to the MR pin even when VSENSEn is
within a range of the release voltage. In other cases, set the MR pin voltage to "High" or open. In a system
without using the manual reset function, set the MR pin voltage to "High" or open.
(Pull-up resistance: Typ. 100 kΩ)
VOVREL
VSENSEn VUVREL
VUVDET
VMR
VMRH
VMRL
tDELAYn
VCDn
tDELAYn
VTCD
VDOUTn
(1)
(2)
(3)
Manual Reset Timing Chart
(1) When inputting “Low” to the MR pin, DOUTn is fixed to "Low" after the manual reset detection delay time
(Typ. 20 µs) even if the SENSEn pin voltage (VSENSEn) is within a range of the release voltage. The “Low”
signal should be 50 µs or more.
(2) When the MR pin transitions from "Low" to "High", DOUTn becomes "High" after the release delay time
(tDELAYn). At this time, the MR pin should maintain "High" for the release delay time or longer. Even if the
external capacitor (CDn capacitance) is not connected, it should maintain "High" for 50 µs or more.
(3) When VSENSEn is lower than VUVDETn or higher than VOVDETn, and DOUTn is "Low", DOUTn does not
transition even when the MR pin is set to "Low".
16
R3500S
No. EC-521-210927
APPLICATION INFORMATION
Internal Supply Voltage Monitoring with VCCDET
The R3500 has a voltage regulator (INT regulator) inside the IC. Major functions of the IC are operated by
VCC (Typ. 3.3V) generated by INT regulator from input voltage, VDD. The overvoltage detection circuit, OVLO
and the undervoltage detection circuit, UVLO monitor the VCC being within the normal voltage range. When
VCC is out of the normal range, NMOS driver connected to VCCDET pin turns on. By pulling up VCCDET pin,
when OVLO or UVLO detects an abnormal VCC voltage, the output of VCCDET pin becomes “L”. By
monitoring VCC, UVLO also monitors undervoltage of VDD indirectly.
Even if pulled up VCCDET pin becomes “L”, the R3500 doesn’t lose the voltage detector function immediately.
VCCDET pin should be set to open when it is unused.
R3500 Fault Detection Utilizing the Manual Reset Function
When a DOUTn pin output is ”H”, it’s very important to know whether it’s a result of normal voltage detector
function or malfunction.
Utilizing the R3500 manual reset function, one part of IC faults can be detected. By the manual reset function,
when “L” signal is input to MR pin, DOUTn pin output is fixed to ”L” forcibly. If DOUTn pin doesn’t become ”L”
even though SENSE pin voltage is within the released voltage range and ”L” is input to MR pin, this can be
determined as an IC fault.
When DOUTn is fixed to ”H” due to an IC fault, DOUTn pin doesn’t become ”L” even "L" signal is input to MR
pin. The faults can be detected with the manual reset function of the R3500 by checking DOUTn pin condition
as above, are a wire open fault of DOUTn pin or an open fault of the output driver.
When detect IC faults with the manual reset function, follow the “Manual Reset Function with MR Pin” noted
previously.
The system which usually receives output from DOUTn pin should not receive output from DOUTn pin during
a fault detection test.
17
R3500S
No. EC-521-210927
The concept of “H” level of MR pin
The R3500 has a voltage regulator (INT regulator) inside the IC. Major functions of the IC are operated by
VCC (Typ. 3.3V) generated by INT regulator from input voltage, VDD.
MR pin is pulled up to VCC voltage via 100kΩ as it can be set to open when MR pin is unused.
When the manual reset function is in use, when input “L” signal to MR pin, then DOUTn pin becomes “L”. But
when the manual reset function is in no use, if “H” voltage is input to MR pin, the current which is determined
by the following equation flows continuously. This makes the supply current increase.
(VCC – MR ”H” voltage) /100kΩ
(VCC＞MR ”H” voltage)
Unless there’s a specific reason to avoid an OPEN pin condition, it’s recommended to be left OPEN when
MR pin is not used.
As the circuit configuration prevents a reverse current from MR pin to VCC, even when being used in condition
of MR “H” voltage＞VCC, supply current doesn’t increase and VCC voltage doesn’t vary.
18
R3500S
No. EC-521-210927
TYPICAL CHARACTERISTICS
Note: Typical Characteristics are intended to be used as reference data; they are not guaranteed.
14
14
12
12
Supply Current ISS[uA]
Supply Current ISS[uA]
1) Supply Current vs. Input Voltage
VUVSET = 4.82V / VOVSET = 5.21V, VUVSET = 3.18V / VOVSET = 3.43V, VUVSET = 1.74V / VOVSET = 1.87V,
VUVSET = 0.97V / VOVSET = 1.04V
10
8
6
-40℃
4
25℃
105℃
2
0
125℃
0
6
12
18
24
30
36
42
10
8
6
-40℃
4
25℃
105℃
2
0
125℃
0
2
4
6
Input Voltage VDD [V]
Input Voltage VDD [V]
2) SENSE Current vs. Input Voltage
VUVSET = 3.18V / VOVSET = 3.43V
0.7
ISENSE[uA]
0.6
0.5
0.4
0.3
0.2
0.1
0
-40℃
25℃
105℃
125℃
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Input Voltage VSENSE [V]
19
R3500S
No. EC-521-210927
3) UV / OV Detection・Release Voltage vs. Temperature
VDD = 14V, VOVSET = 5.21V / VUVSET = 4.82V
5.220
4.870
5.210
4.830
4.810
4.790
UVREL
4.770
4.750
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
4.850
UVDET
-40 -20
0
5.200
5.190
5.180
5.170
5.160
OVDET
5.150
OVREL
5.140
20 40 60 80 100 120
-40 -20
0
Ta [℃]
20 40 60 80 100 120
Ta [℃]
3.200
3.440
3.190
3.430
3.180
3.170
3.160
UVDET
3.150
3.140
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
VDD = 14V, VOVSET = 3.43V / VUVSET = 3.18V
0
3.410
3.400
3.390
OVDET
3.380
UVREL
-40 -20
3.420
3.370
20 40 60 80 100 120
OVREL
-40 -20
0
20 40 60 80 100 120
Ta [℃]
Ta [℃]
1.755
1.875
1.750
1.870
1.745
1.740
1.735
UVDET
1.730
1.725
UVREL
-40 -20
0
20 40 60 80 100 120
Ta [℃]
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
VDD = 14V, VOVSET = 1.87V / VUVSET = 1.74V
1.865
1.860
1.855
OVDET
1.850
1.845
OVREL
-40 -20
0
20 40 60 80 100 120
Ta [℃]
20
R3500S
No. EC-521-210927
0.976
1.042
0.974
1.040
0.972
1.038
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
VDD = 14V, VOVSET = 1.04V / VUVSET = 0.97V
0.970
0.968
0.966
UVDET
0.964
0.962
UVREL
-40 -20
0
1.036
1.034
1.032
1.030
OVDET
1.028
OVREL
1.026
20 40 60 80 100 120
-40 -20
0
20 40 60 80 100 120
Ta [℃]
Ta [℃]
4.860
5.220
4.850
5.210
4.840
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
4) UV / OV Detection・Release Voltage vs. Input Voltage
VDD = 14V, VOVSET = 5.21V / VUVSET = 4.82V
4.830
4.820
4.810
4.800
4.790
4.780
5.200
5.190
5.180
5.170
5.160
5.150
0
6
12
18
24
30
36
5.140
42
0
6
Input Voltage VDD [V]
12
18
24
30
36
42
36
42
Input Voltage VDD [V]
VDD = 14V, VOVSET = 3.43V / VUVSET = 3.18V
3.200
3.190
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
3.195
3.185
3.180
3.175
3.170
3.165
3.160
0
6
12
18
24
30
Input Voltage VDD [V]
36
42
3.435
3.430
3.425
3.420
3.415
3.410
3.405
3.400
3.395
3.390
0
6
12
18
24
30
Input Voltage VDD [V]
21
R3500S
No. EC-521-210927
VDD = 14V, VOVSET = 1.87V / VUVSET = 1.74V
1.745
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
1.750
1.740
1.735
1.730
1.725
0
6
12
18
24
30
36
42
1.872
1.870
1.868
1.866
1.864
1.862
1.860
1.858
1.856
1.854
1.852
Input Voltage VDD [V]
0
6
12
18
24
30
36
42
36
42
Input Voltage VDD [V]
VDD = 14V, VOVSET = 1.04V / VUVSET = 0.97V
1.042
1.040
0.974
VOVDET/VOVREL[V]
VUVDET/VUVREL[V]
0.976
0.972
0.970
0.968
0.966
0.964
1.038
1.036
1.034
1.032
1.030
1.028
0
6
12
18
24
30
36
42
Input Voltage VDD [V]
1.026
0
6
12
18
24
30
Input Voltage VDD [V]
5) DOUT Pin Voltage vs. Input Voltage
VSENSE = (VOVSET+VUVSET)/2, Pull-up Voltage = 5V
6
VDOUT2 [V]
5
4
3
2
1
0
0
2
4
6
8
10
12
14
VDD [V]
22
R3500S
No. EC-521-210927
6) DOUT Pin Voltage vs. SENSE Pin Voltage
VUVSET = 4.82V / VOVSET = 5.21V,
VUVSET = 0.97V / VOVSET = 1.04V, Pull-up Voltage= 5V
6
VDOUT1
VDOUT [V]
5
VDOUT4
4
3
2
1
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
VSENSE [V]
Driver Output Current[mA]
7) Driver Output Current vs. Input Voltage
VSENSE = 0V, VDOUT2 = 0.1V
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40℃
25℃
105℃
125℃
0
6
12
18
24
30
36
42
Input Voltage VDD [V]
DOUT4
16
Driver Output Current[mA]
Driver Output Current[mA]
8) Driver Output Current vs. VDS
VSENSE = 0V, VDOUT1/4 = 0V → 14V
DOUT1
14
12
10
8
6
VDD=2.9V
4
VDD=14V
2
0
VDD=42V
0
2
4
6
8
VDS [V]
10
12
14
16
14
12
10
8
6
VDD=2.9V
4
VDD=14V
2
0
VDD=42V
0
2
4
6
8
10
12
14
VDS [V]
23
R3500S
No. EC-521-210927
Output delay time for Release[ms]
9) Release Delay Time vs. Temperature
VSENSE = 0V → (VUVSET + VOVSET)/2 (UV)
VSENSE = 5.5V → (VUVSET + VOVSET)/2 (OV), CD = 10nF
5.5
UV Release
5.0
OV Release
4.5
4.0
3.5
3.0
-40 -20
0
20
40
60
80 100 120
Ta [℃]
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
OV Release
-40℃
25℃
105℃
125℃
0
6
12
18
24
30
36
42
Output Delay time for Release[ms]
Output delay time for Release[ms]
10) Release Delay Time vs. Input Voltage
CD = 10nF
UV Release
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
Input Voltage VDD [V]
-40℃
25℃
105℃
125℃
0
6
12
18
24
30
36
42
Input Voltage VDD [V]
11) Release Delay Time vs. External Capacitor for CD Pin
VDD = 14V
Output Delay time for Release[ms]
1000
100
10
1
0.1
UV Release
0.01
0.001
0.001 0.01
OV Release
0.1
1
10
100 1000
CD[nF]
24
R3500S
No. EC-521-210927
VSENSE=(VUVSET +VOVSET)/2→VUVSET×0.97V (UV),
VSENSE=(VUVSET + VOVSET)/2→VOVSET×1.03V (OV)
35
30
OV Detection
25
UV Detection
Output Delay time for Reset[ms]
Output Delay time for Reset[us]
12) Detection Delay Time vs. Temperature
VDD = 14V,
VSENSE = (VUVSET + VOVSET)/2 → 0V (UV),
VSENSE = (VUVSET + VOVSET)/2 → 5.5V (OV)
20
15
10
5
0
-40 -20
0
20
40
60
80 100 120
50
OV Detection
45
UV Detection
40
35
30
25
20
-40 -20
0
20
Ta [℃]
40
60
80 100 120
Ta [℃]
13) SENSE Pulse Width vs. Over Drive Voltage
VDD = 14V, VSENSE = (VUVSET+VOVSET)/2 → (VUVSET -Over Drive Voltage) (UV),
VSENSE = (VUVSET+VOVSET)/2 → (VOVSET +Over Drive Voltage) (OV)
Occurrence of reset signal
in the area crossing OV and
UV thresholds
Pulse Width [μs]
140
120
100
80
60
40
20
0
UV
OV
10
100
1000
Over Drive Voltage [mV]
4.8
0
4.6
4.4
4.2
0
100
200
Time[ms]
300
400
Input Voltage
5.0
4.8
4.6
4.4
4.2
10
5
6.200
20
5.700
1
0
5.200
4.700-40℃0
4.200
-10
25℃
400
300
200
100
0
125℃
Tim
300
400
0
100
200
Time[μs]
Input Voltage[V]
Dout Voltage[V]
10
5.0
15
In…
20
Input Voltage
20
D…
30
15) Cranking
VDD = 15V → 4V → 15V (Tr = Tf = 1μs),
Pull-up Voltage = 5V
Dout Voltage[V]
40
-40℃
25℃
125℃
Input Voltage[V]
14) Load Dump
VDD = 12V → 35V (Tr = 1ms) → 12V (Tf = 170ms),
Pull-up Voltage = 5V
0
25
POWER DISSIPATION
HSOP-18
PD-HSOP-18-(125150)-JE-B
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
0.3 mm × 21 pcs
Measurement Result
(Ta = 25°C, Tjmax = 150°C)
Item
Measurement Result
Power Dissipation
3900 mW
ja = 32°C/W
Thermal Resistance (ja)
Thermal Characterization Parameter (ψjt)
ψjt = 8°C/W
ja: Junction-to-Ambient Thermal Resistance
ψjt: Junction-to-Top Thermal Characterization Parameter
4000
3900
Power Dissipation PD (mW)
3500
3000
2500
2000
1500
1000
500
0
0
25
50
75
100
125
150
Ambient Temperature (°C)
Power Dissipation vs. Ambient Temperature
Measurement Board Pattern
i
PACKAGE DIMENSIONS
HSOP-18
DM-HSOP-18-JE-B
∗
HSOP-18 Package Dimensions
i
1. The products and the product specifications described in this document are subject to change or discontinuation of
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.
2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written
consent of Ricoh.
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.
5. The products in this document are designed for automotive applications. However, when using the products for
automotive applications, please make sure to contact Ricoh sales representative in advance due to confirming the
quality level.
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/
工商网监
湘ICP备2023018690号
