APW1683
3-Channel Power Supply Supervisor
Features
Over Voltage Protection and Lock Out for
!
3.3 V, 5 V, and 12 V
Under Voltage Protection and Lock Out for
!
3.3 V and 5 V
General Description
The APW1683 is designed to minimize the external
components of personal-computer switching power
supply systems. It provides protection circuits, power
good indicator, fault protection output
FPO
and
PSON
control.
OVP (over voltage protection) monitors 3.3V, 5 V,
and 12 V (12 V OV detects via V
CC
terminal). UVP
(under voltage protection) monitors 3.3V and 5V.
When an OV or UV condition is detected, the PGO
(power good output) is set to low and
FPO
is latched
to high.
PSON
from low to high resets the protection
latch. There is a 2.3ms turn-off delay from
PSON
to
FPO
. There is no delay during turn on.
Power good feature monitors PGI, 3.3V and 5V un-
der voltages, and issues a power good signal when
they are ready.
•
•
•
•
•
•
•
•
•
•
•
Fault Protection Output with Open Drain
Output Stage
Open Drain Power Good Output Signal for
!
Power Good Input, 3.3 V and 5 V
300 ms Power Good Delay
2.3 ms
PSON
Control to
FPO
Turn-Off
Delay
38 ms
PSON
Control Debounce
75 ms Delay for 3.3V and 5V Under Voltage
!
Protection
73
µs
Width Noise Deglitches
Wide Power Supply Voltage Range
from 4 V to 15 V
Intelligent Under Voltage Protection to Pre
vent Instantaneously AC Power Black Out
Pin Description
PGI
GND
1
2
3
4
8
7
6
5
PGO
VCC
VS5
VS33
Applications
•
PC Switching Power Supply
FPO
PSON
Ordering Information
APW1683
Handling Code
Temp. Range
Package Code
Package Code
J : DIP - 8
Temp. Range
C : 0 to 70
°
C
Handling Code
TU : Tube
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
ANPEC Electronics Corp.
Rev. P.2 - Aug., 2001
1
www.anpec.com.tw
APW1683
Block Diagram
V
CC
V
REF
-
+
12 OV
POR
Reset
Vreg
V
DD
=3.5V
Bandgap
Reference
V
REF
1.192V
R
L
=100kΩ
V
S5
R
R R
5 OV
73µs
Debounce
73µs
Debounce
S Q
Reset
Dominent
Latch
RTT
FPO
V
REF
-
+
R
L
=100kΩ
V
S33
R
V
DD
Reset
38ms
Debounce
PSON
2.3 ms
Delay
EN
V
REF
3.3 OV
-
+
75ms
Delay
EN
Counter
3.3 UV
R
R
R
L
=100kΩ
V
REF
-
+
-
+
-
+
PGO
EN
300ms
Delay
Counter
GND
V
REF
5 UV
73µs
Debounce
1.15V
PGI
0.95V
PGI1
-
+
PGI2 150µs Debounce
and 4.8ms delay
Absolute Maximum Ratings
Sym bol
V
CC
VS5, VS33
FPO
PSO N
PG I
PG O
T
A
T
STG
T
L
Param eter
Supply Voltage
5V and 3.3V Input Voltage(Note 1)
Fault Protection O utput Voltage
O N/O FF Control Input Voltage(Note 1)
Power G ood Input Voltage(Note 1)
Power G ood O utput Voltage(Note 1)
Am bient Tem perature Range
Storage Tem perature R ange
Lead Tem perature (Soldering, 10 second)
Rating
16
8
16
8
8
8
0 to 70
-65 to +150
260
Unit
V
V
V
V
V
V
°C
°C
°
C
Note 1: For a short period (<1 sec) over voltage test, these pins can withstand up to 12V.
Copyright
ANPEC Electronics Corp.
Rev. P.2 - Aug., 2001
2
www.anpec.com.tw
APW1683
Pin Function Description
Terminal
Name
V
S33
V
S5
GND
FPO
PGI
PGO
PSON
V
CC
5
6
2
3
1
8
4
7
O
I
O
I
I
I
I
3.3 V over/under voltage protection input pin
5 V over/under voltage protection input pin
Ground
Inverted fault protection output, open drain output stage
Power good input signal pin
Power good output signal pin, open drain output stage
ON/OFF control input pin
Supply voltage/12 V over voltage protection input pin
NO.
I/O
Terminal Function Description
Function Table
PGI
<0.95V
<0.95V
<0.95V
0.95V<PGI<1.15V
0.95V<PGI<1.15V
0.95V<PGI<1.15V
PGI>1.15V
PGI>1.15V
PGI>1.15V
X
PSON
L
L
L
L
L
L
L
L
L
H
UV Condition
( 3.3 V or 5V )
no
no
yes
no
no
yes
no
no
yes
X
OV Condition
( 3.3V, 5V, or 12V )
no
yes
no
no
yes
no
no
yes
no
X
FPO
L
H
L
L
H
H
L
H
H
H
PGO
L
L
L
L
L
L
H
L
L
L
X = don’t care
FPO
= L means: fault is NOT latched
FPO
= H means: fault is latched
PGO = L means: fault
PGO = H means: NO fault
Thermal Characteristics
Symbol
R
THJA
Parameter
Thermal Resistance from Junction to Ambient in Free Air
DIP-8
Value
129
Unit
K/W
Copyright
ANPEC Electronics Corp.
Rev. P.2 - Aug., 2001
3
www.anpec.com.tw
APW1683
Electrical Characteristics
Symbol
Parameter
Test Conditions
Min.
Over Voltage Protection
Over Voltage Threshold
V
S33
V
S5
V
CC
I
LKG
V
OL
V
OH
Leakage Current ( FPO )
Low Level Output Voltage ( FPO )
FPO Pin Pull High Voltage
Input Threshold Voltage (PGI) PGI1
PGI2
Under Voltage threshold
V
S33
V
S5
Under Voltage Protection Delay Time
(3.3V and 5V)
I
LKG
V
OL
V
OH
Leakage Current (PGO)
Low Level Output Voltage (PGO)
PGO Pin Pull High Voltage
Input Pull-Up Current
High-Level Input Voltage
Low-Level Input Voltage
Total Device
V
CC
I
CC
t
d1
t
b
T
dg
t
d2
Supply Voltage
Supply Current
Delay time (PGI to PGO)
Debounce Time ( PSON )
Noise Deglitch Time
Delay Time ( PSON to FPO )
PSON =5V
200
24
47
300
38
73
4
15
1
450
57
110
t
b
+4
V
mA
ms
ms
µs
ms
PSON = 0V
2.4
1.2
150
PGO=5V
Sink Current = 10mA
1.1
0.9
2.0
3.3
49
1.15
0.95
2.2
3.5
75
V( FPO )=5V
I
SINK
= 10mA
I
SINK
= 30mA
PGI and PGO
1.2
1.0
2.4
3.7
114
5
0.4
7
ms
µA
V
V
µA
V
V
V
V
3.7
5.7
13.2
3.9
6.1
13.8
4.1
6.5
14.4
5
0.3
0.7
15
V
µA
V
V
APW1683
Typ.
Max.
Unit
PSON Control
Switching Characteristics
t
b
+1.1 t
b
+
2.3
Copyright
ANPEC Electronics Corp.
Rev. P.2 - Aug., 2001
4
www.anpec.com.tw
APW1683
Typical Application Circuit
5 V
SB
PGI
PGO
APW1683
12 V
1
PGI
PGO
8
0.5V
Drop
5 V
SB
2
GND
VCC
7
3
FPO
VS5
6
5V
PSON
4
PSON
VS33
5
3.3 V
Custormer Service
Anpec Electronics Corp.
Head Office :
5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
Tel : 886-2-89191368
Fax : 886-2-89191369
Copyright
ANPEC Electronics Corp.
Rev. P.2 - Aug., 2001
5
www.anpec.com.tw
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