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Vishay Intertechnology Electronic Components Datasheet

SI4750DY Datasheet

Smart Power High-Side Switch

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SI4750DY pdf
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Smart Power High-Side Switch
Si4750DY
Vishay Siliconix
PRODUCT SUMMARY
Overvoltage Protection
Vbb(AZ) (V)
Operating Voltage
Vbb(on) (V)
41 5 15
On-State Resistance
RON (mW)
50
Nominal Load Current
IL(nom) (A)
2.0
FEATURES
D Overload Protection
D Current Limitation
D Short Circuit Protection
D Thermal Shutdown with Restart
D Overvoltage Protection (Including Load Dump)
D Reverse Battery Protection with External Resistor
D CMOS Compatible Input
D Start A Cold Filament Lamp
D ESD Protection
D Low Standby Current
APPLICATIONS
D All Types of Resistive, Inductive and Capacitive Loads
D mC Compatible Power Switch for 12-V dc Applications
D Replaces Electromechanical Relays and Discrete
Circuits
DESCRIPTION
The Si4750DY is an n-channel verticle power FET with charge
pump, ground referenced CMOS compatible input, and fully
protected by embedded protection functions.
FUNCTIONAL BLOCK DIAGRAM
VBAT
VST
IN
ESD
ESD
Controller IC
Voltage
Regulator
Controller
Charge Pump
and
Gate Drive
Overload
and
Short Circuit
Thermal Shutdown
with
Hysterisis
MOSFET Die
Load Source
Sense Diode
S
Load
Document Number: 72219
S-32411—Rev. B, 24-Nov-03
www.vishay.com
1


Vishay Intertechnology Electronic Components Datasheet

SI4750DY Datasheet

Smart Power High-Side Switch

No Preview Available !

SI4750DY pdf
Si4750DY
Vishay Siliconix
www.DataSheet4U.com
PIN CONFIGURATION
New Product
SO-8
18
27
36
45
Top View
Ordering Information: Si4750DY—E3
Si4750DY-T1—E3 (with Tape and Reel)
TRUTH TABLE
IN MOSFET
H ON
L OFF
Pin Number
1
2, 3, 4
5, 6
7
8
PIN DESCRIPTION
Symbol
Description
IN
VBAT
S
GND
VST
Input Logic Signal
VBAT/MOSFET Drain, Bypass Cap is Mandatory
MOSFET Source
Ground
Status Output Pin
ABSOLUTE MAXIMUM RATINGS (TA = 25_C UNLESS OTHERWISE NOTED)
Parameter
Symbol
Limit
Supply Voltage
Supply Voltage For Full Short Circuit Protection (TA = 40 to 150_C)
Continuous Input Voltage
Load Current (Short Circuit Current—see page 3)
Current Through Input Pin (dc)
Operating Temperature
Storage Temperature
Power Dissipationa
Inductive Load Switch-Off Energy Dissipation Single Pluse (TA = 25_C)
Load Dump Protectionb, c (td = 15 ms, VIN = low or high, Vbb = 14.5 V)
Electrostatic Discharge Voltage (Human Body Model)d
Input Pin
All Other Pins
Vbb
Vbb(SC)
VIN
IL
IIN
TA
Tstg
Ptot
EAS
VLOADDUMP
VESD
15
15
0.7 to 7.5
Self-Limit
"1
40 to 150
55 to 150
1.14
20
25
"1.2
"5
Unit
V
A
mA
_C
W
mJ
V
kV
THERMAL RESISTANCE RATINGS
Parameter
Symbol Minimum
Typical
Maximum
Unit
Junction-to-Ambient
Junction-to-Case (Drain)a
RthJA
RthJC
88 110
29 36 _C/W
Notes
a. When Mounted on 1” x 1” PCB FR4 Board.
b. Not tested, specified by design.
c. VLOADDUMP is setup without the DUT connected to the generator per ISO 7637-1 and DIN 40839. Supply voltages higher than Vbb(AZ) require an external
current limit for the GND pin, e.g. witha 150-W resistor in GND connection. A resistor for the protection of the input is integrated.
d. According to ANSI EOS/ESD-S5.1-1983 ESD STM5.1-1998.
www.vishay.com
2
Document Number: 72219
S-32411—Rev. B, 24-Nov-03


Part Number SI4750DY
Description Smart Power High-Side Switch
Maker Vishay Siliconix
Total Page 8 Pages
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