© Semiconductor Components Industries, LLC, 2014
June, 2014 − Rev. 8 1Publication Order Number:
NCP3712ASNT1/D
NCP3712ASN,
SZNCP3712ASN
Over Voltage Protected
High Side Switch
This switch is primarily intended to protect loads from transients by
isolating the load from the transient energy rather than absorbing it.
Features
Capable of Switching Loads of up to 200 mA without External
Rboost
Switch Shuts Off in Response to an Over Voltage Input Transient
Features Active Turn Off for Fast Input Transient Protection
Flexible Over Voltage Protection Threshold Set with External Zener
Automatic Recovery after Transient Decays Below Threshold
Withstands Input Transients up to 105 V Peak
Guaranteed Off State with Enbl Input
ESD Resistant in Accordance with the 2000 V Human Body Model
Extremely Low Saturation Voltage
SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable
These are Pb−Free Devices
Applications Include:
High Voltage Transient Isolation
Power Switching to Electronic Modules
DC Power Distribution in Line Operated Equipment
Buffering Sensitive Circuits from Poorly Regulated Power Supplies
Pre−conditioning of Voltage Regulator Input Voltage
Figure 1. Typical Application Circuit
NCP3712ASN
Ropt
P. S.
+
L
O
A
D
Rboost
SW
Enbl
Vin Vout
VZ
1 k (min)
or
SC−74
CASE 318F
INTERNAL CIRCUIT DIAGRAM/
PIN CONFIGURATION
Enbl(1)VZ
(4)
(3)
(6)
(2)
(5)
Vin Vout
N.C.
Rboos
t
R2
R1 R3
R4
Q1
Q2
MARKING
DIAGRAM
Device Package Shipping
ORDERING INFORMATION
BAG = Device Code
M = Date Code
G= Pb−Free Package
NCP3712ASNT1G
SZNCP3712ASNT1G SC−74
(Pb−Free) 3000 / Tape &
Reel
NCP3712ASNT3G
SZNCP3712ASNT3G
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer t o our Tape and Reel Packaging Specification
s
Brochure, BRD8011/D.
http://onsemi.com
1
6BAG MG
G
(Note: Microdot may be in either location)
SC−74
(Pb−Free) 10,000 / Tape &
Reel
NCP3712ASN, SZNCP3712ASN
http://onsemi.com
2
MAXIMUM RATINGS (TJ = 25°C unless otherwise noted) (Note 1)
Rating Symbol Value Unit
Input−to−Output Voltage Vio 105 V
Reverse Input−to−Vz. Voltage Vin(rev) −9.0 V
Reverse Input−to−Rboost Voltage Vin(rev) 5.0 V
Output Load Current Continuous Iload −300 mA
Enbl Input Current − Continuous Ienbl 5.0 mA
Vz Input Current − Continuous Iz3.0 mA
Rboost Input Current − Continuous Iboost 10 mA
Junction Temperature TJ125 °C
Operating Ambient Temperature Range TA40 to +85 °C
Storage Temperature Range Tstg 65 to +150 °C
Device Power Dissipation (Minimum Footprint) PD300 mW
Derate Above 25°C 2.4 mW/°C
Latchup Performance: Positive
Negative ILatchup 200
200 mA
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device contains ESD protection and exceeds the following tests:
Human Body Model 1500 V per MIL−STD−883, Method 3015.
Machine Model Method 150 V.
Figure 2. Typical Applications Circuit for Load Dump Transient Protection
NCP3712
ASN
A+
A−
1N4004
FB*
*FB = MMZ2012 Y601B
FB*
0.01 mF
TYP 0.027 mF
TYP 18 V
TYP Ropt Rload
Enbl
Iboost
Rboost
Ienbl
IZ
Vout
Iload
N.C. Vin
VZ1.0 k TYP
Renbl
0−500 W
KEY
3
1
2
6
5
4
Von
Figure 3. Enable NOT Switching Waveforms Figure 4. Load Dump Waveforms
30 500 TIME (ms)
15
10
TIME (ms) 35
0
0
80
40
20
0
13.5 V SUPPLY RAIL
AMPLITUDE (V)
AMPLITUDE (V)
5
0155 10 20 25 35 40 250 30050 100 200150
60
100
120
45
50%
AMPLITUDE
LOAD
DEPENDENT
EXP DECAY
DEVICE OUTPUT
VOLTAGE
“ENABLE
NOT”
INPUT
tpLH
Voff
13.5 V
SUPPLY
RAIL
TYPICAL
INPUT
TRANSIENT
LOAD
DEPENDENT
OUTPUT
EXP DECAY
NCP3712ASN, SZNCP3712ASN
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (Vin = 12.5 VDC Ref to Gnd, TA = 25°C unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
OFF CHARACTERISTICS
Input−Output Breakdown Voltage
(@ Iout = 200 mA) V(BRio) 105 Vdc
Output Reverse Breakdown Voltage
(@ Iout = −1.0 mA Pulse) V(−BRout) 0.7 Vdc
Output Leakage Current
(Vin = Venbl = 30 V, TA = 25°C) Iload(off) −100 mAdc
Guaranteed “Off” State “ENBL NOT” Voltage
(IO 100 mA) Venbl(off) 13 Vdc
Required “Off” State Iz Current
(Rload = 100 W)Iz(off) 150 mAdc
Vin(off)
(Vz = 16 V, Iload = 100 mA, Renbl = 1500 W)Voff 15.5 18.7 Vdc
ON CHARACTERISTICS
Input−Output On Voltage
(Io = 100 mA, Ienbl = −3.0 mA) Vio(on) 0.2 0.5 Vdc
Output Load Current Continuous
(Ienbl = −3.0 mA, Vio(on) = 0.5 Vdc)
(Iboost = −9.0 mA, Vio(on) = 0.5 Vdc)
(Iboost = −9.0 mA, Vio(on) = 0.6 Vdc)
Io(on)
−200
−200
−300
mAdc
Vin(on)
(Vz = 16 V, Iload = 100 mA, Renbl = 1500 W)Von 8.5 10.5 Vdc
“ENBL NOT” Input Current
(Io = 100 mA, Vio(on) = 0.35 Vdc, Renbl = 1500 W)Ienbl −1.0 mAdc
SWITCHING CHARACTERISTICS
Propagation Delay Time:
Hi to Lo Prop Delay; Fig. 3 (Vin = Venbl = 13.5 V)
Lo to Hi Prop Delay; Fig. 3 (Vin = 13.5 V, Venbl = 0 V) tPHL
tPLH
1.5
1.5
mS
Transition Times:
Fall Time; Fig. 4 (Vin = Venbl = 13.5 V)
Rise Time; Fig. 4 (Vin = Venbl = 0 V) tf
tr
75
400
hS
INTERNAL RESISTORS
Input Leakage Resistor R2 7.0 10 13 kW
Input Resistor R1 3.3 4.7 6.1 kW
Output Leakage Resistor R4 1.4 2.4 3.2 kW
Enable Input Resistor R3 1.4 2.4 3.2 kW
Figure 5. Q2 Base Current vs Temperature with Pin 4 Open
TEMPERATURE (°C) 100−40
2.8
2.6
2.5
2.45 60 80−20 0 4020
2.7
2.9
2.95
IBASE, BASE CURRENT (mA)
2.55
2.65
2.75
2.85
IC − 300 mA
VCE − 600 mV
NCP3712ASN, SZNCP3712ASN
http://onsemi.com
4
PACKAGE DIMENSIONS
SC−74
CASE 318F−05
ISSUE N
23
456
D
1
eb
E
A1
A
0.05 (0.002)
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH
THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM
THICKNESS OF BASE MATERIAL.
4. 318F−01, −02, −03, −04 OBSOLETE. NEW STANDARD 318F−05.
C
L
0.7
0.028
1.9
0.074
0.95
0.037
2.4
0.094
1.0
0.039
0.95
0.037
ǒmm
inchesǓ
SCALE 10:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
HEDIM
AMIN NOM MAX MIN
MILLIMETERS
0.90 1.00 1.10 0.035
INCHES
A1 0.01 0.06 0.10 0.001
b0.25 0.37 0.50 0.010
c0.10 0.18 0.26 0.004
D2.90 3.00 3.10 0.114
E1.30 1.50 1.70 0.051
e0.85 0.95 1.05 0.034
0.20 0.40 0.60 0.008
0.039 0.043
0.002 0.004
0.015 0.020
0.007 0.010
0.118 0.122
0.059 0.067
0.037 0.041
0.016 0.024
NOM MAX
2.50 2.75 3.00 0.099 0.108 0.118
HE
L
0°10°0°10°
q
q
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to any products herein. SCILLC makes no warranty , representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
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NCP3712ASNT1/D
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