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System General
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SG6510X1 Datasheet Preview

SG6510X1 Datasheet

PC Power Supply Supervisors

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SG6510X1 pdf
PC Power Supply Supervisors
Product Specification
SG6510X1
FEATURES
Over-voltage protection (OVP) for 3.3V, 5V and
12V
Under-voltage sense (UVS) and protection (UVP)
for 3.3V, 5V
Open drain output for PGO and FPO pins
300mS power good delay
75mS turn on delay for 3.3V and 5V
2.8mS PSON control to FPO turn-off delay
38mS /38mS PSON control De-bounce
350uS width noise deglitches
2mS UVP De-bounce time
1mS UVS De-bounce time
No lockup during the fast AC power on/off
Brownout protection function for 3.3V and 5V
Wide supply voltage range from 4V to 15V
DESCRIPTION
SG6510 is designed to provide the voltage
supervisor function, remote on/off PSON function, power
good (PGO) indicator function, and fault protection (FPO)
function for switching power systems.
For supervisor function, it provides the over voltage
protection (OVP) monitoring for 3.3V, 5V and 12V (12V
via VDD pin); under voltage sense (UVS) monitoring for
3.3V and 5V; and under voltage protection (UVP)
monitoring for 3.3V and 5V. When 3.3V or 5V voltage is
decreasing to 2.8V and 4.2V respectively, the under
voltage sense (UVS) function will be enabled to reset the
PGO signal from high to low. If 3.3V or 5V voltage is
further decreasing to 2.5V and 3.6V respectively, FPO
will be set to high to turn off the PWM controller IC. 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 and UVS
is 2mS/1mS respectively. The deglitch time for OVP is
75uS for better noise immunity. During AC sag or
brownout situation, the UVP functions still can be enabled
to protect power supply in case of output short circuit.
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 38mS. The PGI circuitry provides a
sufficient power-down warning signal for PGO. When
PGI input is lower than the internal 1.2V reference
voltage, after 350uS de-bounce time, the PGO signal is
pulled low.
TYPICAL APPLICATION
5V 5V
PGI
PSON
SG6510
1 PGI
2 GND
3 FPO
4 PSON
PGO
VDD
VS5
VS33
8
7
6
5
5V
3.3V
© System General Corp.
Version 1.0 ( IRO33.0025.B0)
-1-
12V
5VSB
www.sg.com.tw
Feb.27,2004
Free Datasheet http://www.datasheet4u.com/



System General
System General

SG6510X1 Datasheet Preview

SG6510X1 Datasheet

PC Power Supply Supervisors

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SG6510X1 pdf
PC POWER SUPPLY SUPERVISORS
MARKING INFORMATION
Product Specification
SG6510X1
PIN CONFIGURATION
8
SG6510T1
XXXXXXXYYWWV
1
T: D = DIP
XXXXXXX: Wafer Lot
YY: Year; WW: Week
V: Assembly Location
PGI
GND
FPO
PSON
1
2
3
4
8 PGO
7 VDD
6 VS5
5 VS33
ORDERING INFORMATION
Part Number
Package Type
SG6510D1
8 pins DIP Plastic
PIN DESCRIPTIONS
Pin No. Pin Name Type
1 PGI
Analog input
2 GND
Supply
3 FPO
Logic output
4
PSON
Logic input
5 VS33 Analog input
6 VS5
Analog input
7 VDD
Supply
8 PGO
Logic output
Description
Power good input. For ATX SMPS, it detects main AC voltage under-voltage and/or failure.
Ground.
Fault protection output (invert). Output signal to control the PWM IC. For example it
controls the PWM IC of primary side through an opto-coupler. When FPO is low, the
main SMPS is operational.
Remote On/Off logic input from CPU or main-board. Turn on/off the PWM output after
38mS / 38mS delay.
3.3 V over/under-voltage control sense input.
5 V over/under-voltage control sense input.
Supply voltage. 4V ~ 15V. For ATX SMPS, it is connected to 5V-standby and 12V through
diodes respectively.
Power good logic output, 0 or 1(open-drain). Power good=1 means that the power is
good for operation. The power good delay is 300mS.
© System General Corp.
Version 1.0 ( IRO33.0025.B0)
-2-
www.sg.com.tw
Feb.27,2004
Free Datasheet http://www.datasheet4u.com/


Part Number SG6510X1
Description PC Power Supply Supervisors
Maker System General
Total Page 10 Pages
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SG6510X1 pdf
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