SI4700DY Datasheet PDF - Vishay Siliconix
| Part Number | SI4700DY | |
| Description | Power Selector Switch | |
| Manufacturers | Vishay Siliconix | |
| Logo |  |
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Power Selector Switch
Si4700DY
Vishay Siliconix
FEATURES
APPLICATIONS
D MOSFETs Configured To Give Spdt Switch
With One Control Input
D 2.5- to 8-V Ground Referenced Control Input
D 30-mW Main Switch On-Resistance
D 70-mW Alternate Switch On-Resistance
D SOIC-8 Package
D 3000-V ESD Protection On Control Input
D Zero Power Consumption In Alternate Power
Mode
D ACPI Power Switching In Desktop
Computers
DESCRIPTION
The Si4700DY consists of two MOSFETs configured for use as
a single-pole, double-throw (SPDT) switch. A single ground
referenced input, controls which switch is on. The Si4700DY
is intended for use in applications where two power sources
are available and the circuit must select one of the two
depending on the conditions. An example of such a circuit is
ACPI implementation in computers where part of a circuit must
switch to an “always-on” power supply when the computer is
in suspend mode, but runs off the main power supply for
normal operation.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
VS2
RG
VG
4
8
3
VS1
Q1
Q2
ON/OFF
1
Document Number: 71110
S-00025—Rev. A, 24-Jan-00
Q3
2
5, 6, 7
VD
CO
GND
www.vishay.com S FaxBack 408-970-5600
2-1
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New Product
Si4700DY
Vishay Siliconix
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TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
P-CHANNEL
0.30
0.24
0.18
0.12
0.06
VDROP vs. S1
VON/OFF = 2.5 V
IL = 1 A
VDROP Variance vs. Junction Temperature
0.04
0.03
0.02
VON/OFF = 2.5 V
VS1 = 4.5 V
IL = 1 A
0.01
0.00
–0.01
0
0
0.30
2 4 6 8 10
VS2 (V)
rDS(on) Variation with Input Voltage
0.24
0.18
0.12
VON/OFF = 2.5 V
IL = 1 A
–0.02
–50 –25
0
25 50 75 100 125 150
TJ – Junction Temperature (_C)
Normalized rDS(on) vs. Junction Temperature
1.6
VON/OFF = 2.5 V
1.4 VS2 = 4.5 V
IL = 1 A
1.2
1.0
0.06
0.8
0
02468
VS2 (V)
td(on) Variation with RG/VS1
1.5
VON/OFF = 3 V
1.2 VG = 12 V
CO = 10 mF
IL = 1 A
0.9
VS! = 2.5 V
VS! = 3.3 V
0.6
VS! = 5 V
0.3
10
0
0 20 40 60 80 100
RG (kW)
0.6
–50 –25
0
25 50 75 100 125 150
TJ – Junction Temperature (_C)
trise Variation with RG/VS1
8
VS! = 2.5 V
6
VS! = 3.3 V
4
VS! = 5 V
2
VON/OFF = 3 V
VG = 12 V
CO = 10 mF
IL = 1 A
0
0 20 40
60
RG (kW)
80
100
Document Number: 71110
S-00025—Rev. A, 24-Jan-00
www.vishay.com S FaxBack 408-970-5600
2-5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for SI4700DY electronic component. |
| Information | Total 8 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ SI4700DY.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| SI4700DY | The function is Power Selector Switch. Vishay Siliconix | |
| SI4700DY | The function is Power Selector Switch. Vishay Siliconix | |
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