WS3202K
WS3202K
Over voltage and over current protection IC
Http//:www.willsemi.com
Descriptions
The WS3202K is an Over-Voltage-Protection (OVP)
and Over-Current-Protection (OCP) device. The device
will switch off internal MOSFET to disconnect IN to
OUT to protect load when any of input voltage, input
current over the threshold. The Over temperature
protection (OTP) function monitors chip temperature to
protect the device.
The WS3202K is available in SOT-89-3L package.
Standard products are Pb-free and Halogen-free.
SOT-89-3L
Features
Pin configuration (Top view)
z
z
z
z
z
z
z
z
z
High voltage technology
Maximum input voltage
Maximum output current
Output power ON time
OVP threshold
OVP response time
OCP threshold
Output discharge
Package
: SOT-89-3L
WS3202 = Device code
YY
WW
= Year
= Week
Marking
: 30V
: 2A
: 8ms (Typ.)
: 6.1V (Typ.)
: <1us
: 2A (Min.)
1
WS3202
YYWW
2
3
Applications
z
z
z
z
z
z
GPS
PMP
MID
PAD
Digital cameras
Digital Videos
Device
WS3202K-3/TR
Order information
Package
SOT-89-3L
Shipping
1000/Reel&Tape
Will Semiconductor Ltd.
1
Sep, 2013 - Rev. 1.5
WS3202K
Typical applications
Pin descriptions
Pin No.
1
2
Symbol
OUT
GND
Descriptions
Output pin, connect to load
Power ground
Input pin, connect to AC
adaptor or VBUS. A 1uF low
ESR ceramic capacitor or
3
IN
larger must be connected as
close as to this pin. It is
recommended to use 50V
capacitor or according to
application.
Block diagram
Will Semiconductor Ltd.
2
Sep, 2013 - Rev. 1.5
WS3202K
Absolute maximum ratings
Parameter
Input voltage (IN pin)
Output voltage (OUT pin)
Output current
Power dissipation *
1
*
3
Power dissipation *
2
*
3
Thermal resistance *
1
Thermal resistance *
2
Junction temperature
Lead temperature(10s)
Storage temperature
ESD Ratings
Symbol
V
IN
V
OUT
I
OUT
P
D
R
Value
-0.3 ~ 30
-0.3 ~ 6.5
2.0
1.0
0.5
125
JA
o
o
Unit
V
V
A
W
W
C/W
C/W
o
o
o
250
150
260
-55 ~ 150
±8
±1
T
J
T
L
Tstg
HBM
MM
C
C
C
KV
KV
Note:
These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum
Ratings” may cause substantial damage to the device. Functional operation of this device at other conditions
beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may
affect device reliability.
*1:
Surface mounted on FR-4 Board using 1 square inch pad size, dual side, 1oz copper
*2:
Surface mounted on FR-4 board using minimum pad size, 1oz copper
*3:
Power dissipation is calculated by P
D
= (V
IN
-V
OUT
) x I
OUT
Recommend operating conditions
(Ta=25
o
C, unless otherwise noted)
Parameter
Input voltage
Output current
Ambient operating temperature
Symbol
V
IN
I
OUT
Topr
Value
3 ~ 26
1.5
-40 ~ 85
Unit
V
A
o
C
Will Semiconductor Ltd.
3
Sep, 2013 - Rev. 1.5
WS3202K
Electronics Characteristics
(Ta=25
o
C, unless otherwise noted)
Parameter
Input quiescent current
IN-to-OUT ON resistance *
3
Output discharge resistance
Under voltage lock out threshold
Under voltage lock out hysteresis
Output power-on time
Input Over-Voltage-Protection (OVP)
OVP threshold
OVP hysteresis
OVP active time
OVP recovery time
OCP threshold
OCP active time
OCP recovery time
Over-Temperature-Protection (OTP)
OTP threshold
OTP hysteresis
*3: Single Pulse, Pulse width=10ms
165
40
o
o
Symbol
I
Q
R
ON
R
DISCHARGE
UVLO
V
HYS-UVLO
T
ON
V
OVP
V
HYS-OVP
T
OVP
T
ON(OVP)
I
OCP
T
OCP
T
ON(OCP)
Test conditions
V
IN
=5V, I
OUT
=0A
V
IN
=5V, I
OUT
=0.7A
V
IN
increasing from 0~3V
V
IN
decreasing from 3~0V
V
IN
= 0 -> 5V to output ON
V
IN
increasing from 5~7V
V
IN
decreasing from 7~5V
V
IN
= 5 -> 10V
V
IN
= 10 -> 5V to output ON
Min.
Typ.
280
190
500
Max.
350
220
2.8
Unit
uA
m
V
mV
ms
V
mV
us
ms
A
us
s
C
C
DC characteristics and Power-ON-Reset
2.3
200
6
5.8
200
6
2.0
250
8
6.1
300
8
2.5
176
1
300
10
6.4
400
1
10
3.3
Input Over-Current-Protection (OCP)
Will Semiconductor Ltd.
4
Sep, 2013 - Rev. 1.5
WS3202K
Typical Characteristics
(Ta=25
o
C, unless otherwise noted)
6.2
6.1
6.0
5.9
5.8
5.8
5.7
-50
V
IN
Increasing
2.8
2.7
OVP Threshold, V
OVP
(V)
OCP Threshold, I
OCP
(A)
50
75
o
2.6
2.5
2.4
2.3
2.2
2.1
2.0
-50
-25
0
25
50
75
o
V
IN
Decreasing
-25
0
25
100
125
100
125
Temperature, T
A
( C)
OVP threshold vs. Temperature
2.8
Temperature, T ( C)
A
OCP threshold vs. Temperature
0.30
0.28
UVLO Threshold, V
UVLO
(V)
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
-50
-25
0
25
50
75
o
ON Resistance, R
ON
(
:
)
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
0.10
-50
-25
0
25
50
I
OUT
= 0.7A
DC
75
o
V
IN
Increasing
V
IN
Decreasing
100
125
100
125
Temperature, T
A
( C)
UVLO threshold vs. Temperature
6.0
5.5
V
IN
=5V
I
OUT
=DC Current
Temperature, T
A
( C)
IN-to-OUT ON resistance vs. Temperature
0.34
0.32
0.30
V
IN
=5V
I
OUT
=DC Current
Output Voltage, V
OUT
(V)
ON Resistance, R
ON
(
:
)
0.28
0.26
0.24
0.22
0.20
0.18
0.16
0.14
0.12
T
A
=85 C
O
5.0
T
A
=-40 C
4.5
4.0
3.5
3.0
T
A
=25 C
O
O
O
T
A
=25 C
O
T
A
=85 C
T
A
=-40 C
O
0
500
1000
1500
2000
2500
0
500
1000
1500
2000
2500
Load Current, I
OUT
(mA)
Output voltage vs. Output current
Load Current, I
OUT
(mA)
ON resistance vs. Output current
Will Semiconductor Ltd.
5
Sep, 2013 - Rev. 1.5
FPGA/CPLD
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