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S3515 PDF даташит

Спецификация S3515 изготовлена ​​​​«Unisonic Technologies» и имеет функцию, называемую «PC POWER SUPPLY SUPERVISORS».

Детали детали

Номер произв S3515
Описание PC POWER SUPPLY SUPERVISORS
Производители Unisonic Technologies
логотип Unisonic Technologies логотип 

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S3515 Даташит, Описание, Даташиты
UNISONIC TECHNOLOGIES CO., LTD
S3515
PC POWER SUPPLY
SUPERVISORS
„ DESCRIPTION
The UTC S3515 is specially designed for switching power supply
system. It provides over-voltage protection, over-current protection,
under-voltage protection, on/off control and power good signal generating.
OVP/UVP (Over/Under-Voltage Protection) monitors 3.3V, 5V and
double 12V to protect our power supply and PC, FPO goes to high when
one of these supply voltages exceeds their normal operation voltage
range.
OCP (Over Current Protection) monitors IS33, IS5, IS12 input
current. The voltage difference across external current shunt is used for
OCP functions. An external resistor which is connected between the RI
pin and the GND pin can be used to adjust protection threshold. To
achieve better immunity for lighting surge glitch and to prevent
accidental power shut down during dynamic loading condition, the
de-bounce time for UVP/OCP is 73us respectively. The deglitch time for
OVP is 73uS for better noise immunity.
The power supply is turned on after 38mS de-bounce time when
PSON signal is set from high to low. To turn off power supply, PSON
signal is set from low to high and the de-bounce time is 115mS. When
PGI input voltage level is lower than the internal 1.15V reference
voltage, after 73uS de-bounce time, the PGO signal is pulled low.
„ FEATURES
* Over/Under-Voltage Protection for 3.3V, 5V, and Two 12V
* Over-Current Protection for 3.3V, 5V, and Two 12V
* PGO and FPO pins with Open Drain Output Stage
* 300mS Power Good Delay from PGI to PGO
* 75mS Delay for 3.3V, 5V and 12V Power Turn on
* 2.8mS Delay for PSON Control to FPO Turn off
* 38mS / 115mS PSON on/off De-Bounce Time
* 73uS width Noise Deglitches
* 73uS De-Bounce Time for UVP and OCP
* Wide Supply Voltage Range
„ ORDERING INFORMATION
Ordering Number
Lead Free Plating
Halogen Free
S3515L-D14-T
S3515G-D14-T
S3515L-S14-R
S3515G-S14-R
S3515L-S14-T
S3515G-S14-T
Package
DIP-14
SOP-14
SOP-14
CMOS IC
DIP-14
SOP-14
Packing
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
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S3515 Даташит, Описание, Даташиты
S3515
„ PIN CONFIGURATION
PGI 1
GND 2
FPO 3
PSON 4
IS12
RI
5
6
VS12B
7
14 PGO
13 VDD
12 VS5
11 VS33
10 VS12
9 IS33
8 IS5
CMOS IC
„ PIN DESCRIPTION
PIN NO
1
3
PIN NAME
PGI
FPO
TYPE
input
output
4 PSON
input
8 IS5
9 IS33
input
input
5 IS12
input
6 RI
12 VS5
7 VS12B
10 VS12
11 VS33
13 VDD
14 PGO
2 GND
input
input
input
input
input
power
output
power
DESCRIPTION
Power good input.
Fault protection output, open drain output stage.
Power on/off control signal sends from CPU or main-board. The power
supply will be turned on/off after 38mS/115mS respectively.
5V over current protection.
3.3V over current protection.
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.
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.
5V over/under-voltage protection.
Second 12V over/under-voltage protection.
12V over/under-voltage protection.
3.3V over/under-voltage protection.
Supply voltage. 4V ~ 15V.
Power good logic output, open drain output stage. The power good
delay is 300mS from PGI to PGO.
Ground.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-073,B









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S3515 Даташит, Описание, Даташиты
S3515
„ BLOCK DIAGRAM
PSON
PWR
38ms /115ms
debounce
VS33
VS 5
VS12A
VS12 B
+-UN
-
+OV
+-UN
-
+OV
-+UN
-
+OV
+-UN
-
+OV
PGI
IS 33
IS 5
IS12
VREF
-
+UN
V12A
-
+
IREF×8
V12A
-
+
IREF×8
V12A
-
+
V12A
-
+
IREF×8
CMOS IC
Power On Reset
2.4 ms
Clrdelay
RST
Clr
75ms
delay
PWR
Bandgap
Reference
VREF=1.15 V
RST
73µs
debounce
RST
73µs
debounce
R
SQ
300ms
clr delay
FPO
PGO
VREF=1.15 V
+
-
I REF=VREF/ RI
RI
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-073,B










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