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S3515L-S14-R Datasheet(PDF) 2 Page - Unisonic Technologies

Part # S3515L-S14-R
Description  PC POWER SUPPLY SUPERVISORS
Download  8 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

S3515L-S14-R Datasheet(HTML) 2 Page - Unisonic Technologies

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S3515
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
2 of 8
www.unisonic.com.tw
QW-R502-073,B
PIN CONFIGURATION
1
2
3
4
5
6
78
9
10
11
12
13
14
PGO
VDD
VS5
VS33
VS12
IS33
IS5
PGI
GND
FPO
PSON
IS12
RI
VS12B
PIN DESCRIPTION
PIN NO
PIN NAME
TYPE
DESCRIPTION
1
PGI
input
Power good input.
3
FPO
output
Fault protection output, open drain output stage.
4
PSON
input
Power on/off control signal sends from CPU or main-board. The power
supply will be turned on/off after 38mS/115mS respectively.
8
IS5
input
5V over current protection.
9
IS33
input
3.3V over current protection.
5
IS12
input
12V over current protection. Regarding typical application, this pin is
connected to the positive end of a current shunt through one resistor.
When the voltage on IS12 is higher than that of VS12 by 5mV, OCP
will be enabled. One current sink, 8 x IREF, is used to determine the
voltage drop between the positive end of the current shunt and VS12.
Adjusting the value of the external resistor can adjust the threshold for
OCP accordingly. The operation for IS5 or IS33 is the same.
6
RI
input
Current sense setting. An external resistor Ri is connected between RI
pin and GND pin will adjust a reference current, IREF = 1.15/Ri, for OCP
function.
12
VS5
input
5V over/under-voltage protection.
7
VS12B
input
Second 12V over/under-voltage protection.
10
VS12
input
12V over/under-voltage protection.
11
VS33
input
3.3V over/under-voltage protection.
13
VDD
power
Supply voltage. 4V ~ 15V.
14
PGO
output
Power good logic output, open drain output stage. The power good
delay is 300mS from PGI to PGO.
2
GND
power
Ground.


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