UNISONIC TECHNOLOGIES CO., LTD
3511
PC POWER SUPPLY
SUPERVISORS
DESCRIPTION
DIP-8
CMOS IC
The UTC
3511
is designed to provide the voltage, and current
supervisor function, power good output (PGO), fault protection
latch (FPL_N), and protection detector function (PDON_N) control
for switching power systems.
For supervisor function, it provides the over voltage detector
(OVD) monitoring for 3.3V, 5V, 12V; the under voltage detector
(UVD) monitoring for 3.3V, 5V. When 3.3V or 5V voltage is
decreasing to 2.69V, 4.3V respectively, the under voltage
detector (UVD) function will be enabled to reset the PGO signal
from high to low,and the FPL_N is latched HIGH. When 3.3V, 5V
or 12V voltage is increasing to 3.9V, 6.1V or 13.4V respectively,
the over voltage detector (OVD) function will be enabled to reset
the PGO signal from high to low, and the FPL_N is latched HIGH.
To achieve better immunity for lighting surge glitch and to
prevent accidental power shut down during dynamic loading
condition, the de-bounce time for UVD and OVD is 73us. The
power supply is turned on after 38mS de-bounce time when
FPL_N signal is set from high to low.
SOP-8
FEATURES
* Over Voltage Detector (OVD) for 3.3V, 5V, 12V.
* Under Voltage Detector (UVD) for 3.3V, 5V.
* Open Drain Output for PGO and FPL_N.
* 300 ms power good delay.
* 75 ms delay for 3.3V and 5V turn on.
* 38 ms PDON_N control De-bounce.
* 2.4 ms PDON_N control to FPL_N turn-off delay.
* De-bounce time 73
μs
for UVD/OVD.
* Wide supply voltage range from 4V ~ 15V.
■
ORDERING INFORMATION
Ordering Number
Lead Free
3511L-D08-T
-
Halogen Free
3511G-D08-T
3511G-S08-R
Package
DIP-8
SOP-8
Packing
Tube
Tape Reel
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 8
QW-R502-015.D
3511
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
V
DD
V
IN
CMOS IC
RATINGS
UNIT
Supply Voltage
-0.3 ~ 16
V
Input Voltage
PDON_N, V
5
, V
33
, PGI
-0.3 ~ 7
V
FPL_N
-0.3 ~ 16
Output Voltage
V
OUT
V
PGO
-0.3 ~ 7
Operating Temperature
T
OPR
-40 ~ 125
°C
Storage Temperature
T
STG
-55 ~ 150
°C
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Stresses above those listed may cause permanent damage to the devices
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
V
DD
V
IN
V
OUT
I
OSINK
T
RS
1
MIN
3.8
TYP
12
MAX
15
7
15
7
30
10
UNIT
V
V
V
V
mA
mA
ms
Supply Voltage
Input Voltage
PDON_N, V
5
, V
33
, PGI
FPL_N
Output Voltage
PGO
FPL_N
Output Sink Current
PGO
Supply Voltage Rising Time
ELECTRICAL CHARACTERISTICS
(T
A
=25°C, V
DD
=5V)
SYMBOL
V
33
V
5
V
DD
/ V
12
V
OL
I
LEAKAGE
V
33
V
5
V
PGI
V
OL
I
LEAKAGE
V
IH
V
IL
I
l
V
DD
I
CC
t
DB1
t
DELAY
t
DB2
t
DELAY2
t
DELAY3
t
G
I
SINK
=10mA
I
SINK
=30mA
FPL_N=5V
2.55
4.1
1.16
I
SINK
=10mA
PGO=5V
2.4
1.2
PDON_N=0V
150
3
PDON_N=5V
T
A
= -40℃ ~ 125℃
1
32
38
61
200
300
490
32
38
61
T
DB2
+2.0 T
DB2
+2.4 T
DB2
+3.8
65
63
75
73
122
120
TEST CONDITIONS
MIN
3.7
5.7
12.8
TYP.
3.9
6.1
13.4
0.3
0.7
5
2.69
4.3
1.20
0.4
5
MAX
4.1
6.5
13.9
UNIT
PARAMETER
OVER VOLTAGE DETECTION
Over Voltage Threshold
Low Level Output Voltage (FPL_N)
Leakage Current (FPL_N)
PGI AND PGO
Under Voltage Threshold
Input Threshold Voltage (PGI)
Low Level Output Voltage (PGO)
Leakage Current (PGO)
PDON_N
High-Level Input Voltage
Low-Level Input Voltage
Input Pull-Up Current
TOTAL DEVICE
Low Voltage
Supply Current
De-Bounce Time (PDON_N)
Delay Time (PGI to PGO)
De-Bounce Time (PDON_N)
PDON_N to FPL_N delay Time
Internal UVD Delay Time
De-Glitch Time
V
V
μA
2.83
4.47
1.24
V
V
μA
V
V
μA
V
mA
ms
ms
ms
ms
ms
us
FPL_N go low & every
Time PGI>1.2V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 8
QW-R502-015.D
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