ANPEC APW1683JC-TU Datasheet
APW1683
3-Channel Power Supply Supervisor
Features General Description
• 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
• 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 Control to Turn-Off
Delay
• 38 ms
PSON FPO
Control Debounce
PSON
• 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
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
control.
PSON
FPO
and
OVP (over voltage protection) monitors 3.3V, 5 V,
and 12 V (12 V OV detects via V
terminal). UVP
CC
(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
to high.
from low to high resets the protection
PSON
latch. There is a 2.3ms turn-off delay from
to
. There is no delay during turn on.
FPO
FPO
is latched
PSON
Power good feature monitors PGI, 3.3V and 5V under voltages, and issues a power good signal when
they are ready.
Pin Description
PGI
GND
1
2
8
7
PGO
VCC
FPO
3
6
VS5
Applications
VS33
• PC Switching Power Supply
PSON
4
5
Ordering Information
APW1683
Handling Code
Temp. Range
Package Code
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
Package Code
J : DIP - 8
Temp. Range
C : 0 to 70 C
Handling Code
TU : Tube
°
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APW1683
T
Block Diagram
V
CC
V
REF
+
RL=100k
12 OV
-
Ω
Reset
POR
Vreg
=3.5V
V
DD
Bandgap
Reference
V
1.192V
REF
V
V
S33
PGI
S5
REF
REF
=100k
L
REF
REF
5 OV
+
Ω
3.3 OV
-
+
Ω
-
+
+
-
+
-
+
3.3 UV
5 UV
PGI1
PGI2
73µs
Debounce
150µs Debounce
and 4.8ms delay
V
RL=100k
V
R
V
V
1.15V
0.95V
R
73µs
Debounce
R
75ms
Delay EN
Counter
2.3 ms
Delay
EN
R
73µs
Debounce
R
R
S
Q
Reset
Dominent
Latch
R
300ms
EN Delay
Counter
RT
Reset
38ms
Debounce
FPO
V
DD
PSON
PGO
GND
Absolute Maximum Ratings
Symbol Parameter Rating Unit
V
CC
VS5, VS33 5V and 3.3V Input Voltage(Note 1) 8 V
FPO Fault Protection Output Voltage 16 V
PSON ON/OFF Control Input Voltage(Note 1) 8 V
PGI Power Good Input Voltage(Note 1) 8 V
PGO Power Good O utput Voltage(Note 1) 8 V
T
T
STG
T
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
Supply Voltage 16 V
Ambient Temperature Range 0 to 70
A
Storage Temperature Range -65 to +150
Lead Temperature (Soldering, 10 second) 260
L
C
°
C
°
C
°
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APW1683
Pin Function Description
Terminal
Name
V
S33
V
S5
GND 2 Ground
FPO
PGI 1 I Power good input signal pin
PGO 8 O Power good output signal pin, open drain output stage
PSON
V
CC
NO. I/O Terminal Function Description
5 I 3.3 V over/under voltage protection input pin
6 I 5 V over/under voltage protection input pin
3 O Inverted fault protection output, open drain output stage
4 I ON/OFF contr ol inp ut pin
7 I Supply voltage/12 V over voltage protection input pin
Function Table
PGI
<0.95V L no no L L
<0.95V L no yes H L
<0.95V L yes no L L
0.95V<PGI<1.15V L no no L L
0.95V<PGI<1.15V L no yes H L
0.95V<PGI<1.15V L yes no H L
PGI>1.15V L no no L H
PGI>1.15V L no yes H L
PGI>1.15V L yes no H L
XHX XHL
PSON
UV Condition
( 3.3 V or 5V )
OV Condition
( 3.3V, 5V, or 12V )
FPO
PGO
X = don’t care
= L means: fault is NOT latched
FPO
= H means: fault is latched
FPO
PGO = L means: fault
PGO = H means: NO fault
Thermal Characteristics
Symbol Parameter Value Unit
R
THJA
Copyright ANPEC Electronics Corp.
Rev. P.2 - Aug., 2001
Thermal Resistance from Junction to Ambient in Free Air
DIP-8 129 K/W
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