Product Specification
SG6516
PC Power Supply Supervisors
power-good (PGO) indicator function, and fault
protection (FPO) function for switching power systems.
FEATURES
Two 12V sense input pins: VS12 and VS12B
Over-Voltage Protection (OVP) for 3.3V, 5V,
and two 12V
Over-Current Protection (OCP) for 3.3V, 5V,
and two 12V
Under-Voltage Protection (UVP) for 3.3V, 5V,
and two 12V
Open-drain output for PGO and FPO pins
300ms power-good delay
300ms turn-on delay for 3.3V, 5V, and two 12V
2.8ms PSON control to FPO turn-off delay
48ms PSON control delay
No lockup during the fast AC power on/off
Wide supply voltage range from 4V to 15V
For supervisor, it provides over-voltage protection (OVP)
for 3.3V, 5V, and two 12V; over-current protection (OCP)
for 3.3V, 5V, and two 12V; under-voltage protection
(UVP) for 3.3V, 5V, and two 12V. When 3.3V, 5V, or
12V voltage decreases to 2.3V, 3.5V, and 9V respectively,
the under-voltage protection (UVP) function is enabled.
FPO is set to high to turn off the PWM controller IC. The
voltage difference across external current shunt is used for
OCP functions. An external resistor can be used to adjust
protection threshold.
DESCRIPTION
SG6516 is designed to provide the voltage and current
supervisor function, remote on/off (PSON) function,
The power supply is turned on after a 48ms delay time
when PSON signal is set from high to low. To turn off the
power supply, the PSON signal is set from low to high
with the delay time 48ms. The PGI circuitry provides a
power-down warning signal for PGO. When PGI input is
lower than the internal 1.25V reference voltage, the PGO
signal is pulled low.
TYPICAL APPLICATION
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
-1-
www.sg.com.tw • www.fairchildsemi.com
September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
MARKING INFORMATION
PIN CONFIGURATION
PGI
GND
FPO
T: D = DIP, S = SOP
P: Z = Lead Free
Null=regular package
SG6516TP
PSON
XXXXXXXX: Wafer Lot
XXXXXXXXYWWV
IS12
RI
Y: Year; WW: Week
V: Assembly Location
VS12B
PGO
VDD
VS5
VS33
VS12
IS33
IS5
ORDERING INFORMATION
Part Number
Pb-Free
Package Type
SG6516DZ
14 pin DIP Plastic
SG6516SZ
14 pin SOP Plastic
PIN DESCRIPTIONS
Pin
No.
Pin Name
Type
Description
1
PGI
Analog input
Power-good input. For ATX SMPS, it detects AC line voltage through the main
transformer.
2
GND
Supply
Ground.
3
FPO
Logic output
Fault protection output. Output signal to control the primary PWM IC through an
opto-coupler. When FPO is low, the PWM IC is enabled.
4
PSON
Logic input
Remote on/off logic input from CPU or main board. The power supply is turned on/off after
a 48ms delay.
5
IS12
Analog input
12V over-current protection sense input. For 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 is enabled.
6
RI
Analog input
Reference setting. One external resistor, RI, connected between the RI and GND pins
determines a reference current, IREF = 1.25/RI, for OCP programming.
7
VS12B
Analog input
Second 12V over/under-voltage control sense input.
8
IS5
Analog input
5V over-current protection sense input.
9
IS33
Analog input
3.3V over-current protection sense input.
10
VS12
Analog input
12V over/under-voltage control sense input.
11
VS33
Analog input
3.3V over/under-voltage control sense input.
12
VS5
Analog input
5V over/under-voltage control sense input.
13
VDD
Supply
Supply voltage. 4V ~ 15V. For ATX SMPS, it is connected to 5V-standby and 12V through
diodes respectively.
14
PGO
Logic output
Power-good logic output, 0 or 1(open-drain). Power good=1, the power supply is good for
operation. The power-good delay is 300ms.
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
-2-
www.sg.com.tw • www.fairchildsemi.com
September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
BLOCK DIAGRAM
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
-3-
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September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
FUNCTION TABLE
PGI
PSON
UVP 12V & OCP OVP
FPO
PGO
PGI<1.25V
L
No
L
L
No
PGI<1.25V
L
No
Yes
H
L
PGI<1.25V
L
Yes
No
L
L
PGI<1.25V
L
Yes
Yes
H
L
PGI>1.25V
L
No
No
L
H
PGI>1.25V
L
No
Yes
H
L
PGI>1.25V
L
Yes
No
H
L
PGI>1.25V
L
Yes
Yes
H
L
X
H
X
X
H
L
x = Don’t care
FPO = L: Fault IS NOT latched
FPO = H: Fault IS latched
PGO = L: Fault
PGO = H: No fault
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
-4-
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September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
TIMING DIAGRAM
PSON On/Off and 3.3V, 5V OVP Function
12V OVP/UVP and OCP Function
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
-5-
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September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VDD
DC Supply Voltage
16
V
VIN
Input Voltage
VOUT
PD
Output Voltage
Power Dissipation
TJ
TSTG
TL
ESD
PSON, VS33, VS5, PGI, IS33, IS5
-0.3 to 7.0
V
VS12, VS12B, IS12
-0.3 to 15.0
V
FPO, PGO
8
400
mW
Operating Free Junction Temperature Range
-40 to +125
°C
Storage Temperature Range
-55 to +150
°C
Lead Temperature (Wave Soldering, 10 Seconds)
260
°C
V
Electrostatic Discharge Capability, Human Body Model
4.5
KV
Electrostatic Discharge Capability, Machine Model
200
V
* All voltage values, except differential voltages, are given with respect to GND pin.
*Stresses above those listed may cause permanent damage to the device.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VDD
DC Supply Voltage
Test Conditions
Value
4 to 15
Unit
V
TOPER
Operating Ambient Temperature Range
-25 to +85
°C
ELECTRICAL CHARACTERISTICS
VDD=12V, TA=25°C, unless otherwise noted.
VDD Section
Symbol
Parameter
Test Conditions
Typ.
Max.
IDD1
Supply Current
PSON = Low
1.7
2.6
mA
IDD2
Supply Current
PSON = High
1.0
1.5
mA
TR
Supply Voltage Rising Time
VST
VDD Start Threshold Voltage
Min.
1
Unit
ms
4.0
V
Unit
Over-Voltage and Over-Current Protection
Symbol
Min.
Typ.
Max.
Over-Voltage Protection VS33
3.7
3.9
4.1
Over-Voltage Protection VS5
5.7
6.1
6.5
Over-Voltage Protection VS12, VS12B
13.2
13.8
14.4
Ratio of Current Sense Sink Current to Current
RI = 30KΩ, 0.1% Resistor
Sense Setting Pin (RI) Source Current
7.6
8.0
8.4
VOFFSET
OCP Comparator Input Offset Voltage
-5
ILKG
Leakage Current (FPO)
V(FPO) = 5V
VOLFPO
Low-Level Output Voltage (FPO)
ISINK 20mA
TOVP
OVP Delay Time
VOVP
IREF
Parameter
Test Conditions
33
75
1.250
TOCP
OCP Delay Time
VRI
RI Pin Voltage
1.237
IRI
Output Current RI
12.5
ILKG12
Leakage Current VS12,VS12B
TST-OCP
Start-up OCP / UVP Protection Time
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
5
mV
5
µA
0.4
V
110
µs
1.262
V
20
ms
62.5
93
PGI < 1.25V, FPO=Low
-6-
200
300
V
µA
µA
450
ms
www.sg.com.tw • www.fairchildsemi.com
September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
Under-Voltage Protection and PGI, PGO
Symbol
Parameter
Min.
Typ.
Max.
Unit
VPGI
Input Threshold Voltage PGI
1.225
1.250
1.275
V
Under-Voltage Protection VS33
2.1
2.3
2.5
Under-Voltage Protection VS5
3.3
3.5
3.7
Under-Voltage Protection VS12, VS12B
8.5
9.0
9.5
VUVP
Test Conditions
TOND
Under-Voltage Turn-on Delay Time
TUVP
UVP Delay Time
PGI > 1.25V
ILKG-PGO
Leakage Current (PGO)
VOL-PGO
Low-Level Output Voltage (PGO)
TPG
Timing PG Delay
PGI to PGO
200
TND1
Noise Deglitch Time
PGI to PGO
90
Min.
V
49
75
114
ms
175
275
375
µs
PGO = 5V
5
µA
VDD = 12V, ISINK 10mA
0.4
V
300
450
ms
150
210
µs
Typ.
Max.
Unit
PSON Control
Symbol
Parameter
Test Conditions
IPSON
Input Pull-up Current
PSON = 0V
VIH
High-Level Input Voltage
VIL
Low-Level Input Voltage
TPSON
Timing PSON to On/Off
TPSOFF
120
V
0.8
On (PSON Low to FPO Low)
34
48
67
Off (PSON High PGO Low)
34
48
67
1.6
2.8
4.5
Timing PGO Low to FPO high
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
µA
2
-7-
V
ms
ms
www.sg.com.tw • www.fairchildsemi.com
September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
TYPICAL CHARACTERISTICS
Ratio of current sense sink current to current sense setting pin (RI) source
current vs. Temperature
Supply Current (I DD1) vs. Temperature
1.850
8.50
1.800
8.40
8.30
1.750
8.10
IREF
ICCQ
8.20
1.700
1.650
8.00
7.90
7.80
1.600
7.70
1.550
7.60
7.50
1.500
-40℃
-25℃
-10℃
5℃
20℃
35℃
50℃
65℃
80℃
95℃
-40℃
110℃ 125℃
-25℃
-10℃
5℃
20℃
35℃
50℃
65℃
80℃
95℃
110℃ 125℃
80℃
95℃
110℃ 125℃
temperature(℃)
temperature(℃)
OCP delay time vs. Temperature
OCP comparator input offset voltage vs. Temperature
30.00
3.00
28.00
2.00
26.00
24.00
22.00
T OC P
V OFFSET
1.00
0.00
20.00
18.00
-1.00
16.00
14.00
-2.00
12.00
10.00
-3.00
-40℃
-25℃
-10℃
5℃
20℃
35℃
50℃
65℃
80℃
95℃
-40℃
110℃ 125℃
-25℃
-10℃
5℃
20℃
35℃
50℃
65℃
temperature(℃)
temperature(℃)
RI Pin Voltage vs. Temperature
Input Threshold Voltage (PGI) vs. Temperature
1.2750
1.2600
1.2650
1.2550
1.2550
VRI
VPGI
1.2650
1.2500
1.2450
1.2450
1.2350
1.2400
1.2250
-40℃ -25℃ -10℃
5℃
20℃
35℃
50℃
65℃
80℃
95℃ 110℃ 125℃
Temperature (℃)
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
-40℃ -25℃ -10℃
5℃
20℃
35℃
50℃
65℃
80℃
95℃ 110℃ 125℃
Temperature (℃)
-8-
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September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
APPLICATION NOTE
Over-Current Protection (OCP)
very small offset voltage (±5mV). The sink currents of
IS33, IS5, and IS12 are eight times the current at the RI
pin. The current at the RI pin is VRI/RI. Below is an
example demonstrating how to set OCP.
The SG6516 provides over-current protection for the
3.3V, 5V, and two 12V rails. Whenever an OCP
condition occurs at any of the voltage rails, PGO is low
and FPO is open. The internal OCP comparators have a
If:
I1 • R1>(IRI • 8) • R2, then
(1)
OCP active.
To select an R2 resistor:
If
R1=5mΩ, RI=30K, and
(2)
OCP protection level is 35A, then
(3)
R2 = (I1 • R1) / (IRI • 8)
(4)
= (35A • 5mΩ) / {(1.25V/30K) • 8}
(5)
= 525Ω
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
-9-
www.sg.com.tw • www.fairchildsemi.com
September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
PACKAGE INFORMATION
14 PINS – DIP (D)
θ
D
14
8
E1
1
eB
E
7
A2
A
L
b1
e
A1
b
Dimension:
Symbol
A
A1
A2
b
b1
D
E
E1
e
L
eB
θ°
Millimeter
Min.
Typ.
Max.
Inch
Min.
Typ.
5.334
0.381
3.175
18.669
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
6.223
2.921
8.509
0°
3.302
1.524
0.457
19.050
7.620
6.350
2.540
3.302
9.017
7°
0.210
3.429
0.015
0.125
19.685
0.735
6.477
0.245
3.810
9.525
15°
0.115
0.335
0°
- 10 -
Max.
0.130
0.060
0.018
0.750
0.300
0.250
0.100
0.130
0.355
7°
0.135
0.775
0.255
0.150
0.375
15°
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September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
14 PINS – SOP (S)
14
8
E
1
H
Detail A
F
7
b
c
e
θ
D
A2
A
L
y
Detail A
A1
Dimension:
Symbol
Millimeter
Min.
Typ.
A
A1
A2
b
c
D
E
e
H
L
F
y
θ°
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
1.473
0.101
1.371
0.330
0.190
8.534
3.810
5.791
0.381
0°
1.626
0.406
0.203
8.661
3.912
1.270
5.994
0.635
0.381X45°
Max.
1.727
0.254
1.473
Inch
Min.
0.508
0.249
8.484
3.988
0.058
0.004
0.054
0.013
0.0075
0.336
0.150
5.690
1.270
0.228
0.015
0.101
8°
- 11 -
0°
Typ.
0.064
0.016
0.008
0.341
0.154
0.050
0.236
0.025
0.015X45°
Max.
0.068
0.010
0.058
0.020
0.0098
0.344
0.157
0.244
0.050
0.004
8°
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September 24, 2007
Product Specification
SG6516
PC Power Supply Supervisors
© System General Corp.
Version 1.0.1 (IAO33.0029.B1)
- 12 -
www.sg.com.tw • www.fairchildsemi.com
September 24, 2007