WS3202K
WS3202K
Http//:www.willsemi.com
Over voltage and over current protection IC
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
SOT-89-3L
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.
Features
Pin configuration (Top view)
z
High voltage technology
z
Maximum input voltage
: 30V
z
Maximum output current
: 2A
z
Output power ON time
: 8ms (Typ.)
z
OVP threshold
: 6.1V (Typ.)
z
OVP response time
: 5V to output ON
OVP threshold
VOVP
OVP hysteresis
VHYS-OVP
OVP active time
TOVP
Output power-on time
2.8
V
250
300
mV
6
8
10
ms
VIN increasing from 5~7V
5.8
6.1
6.4
V
VIN decreasing from 7~5V
200
300
400
mV
1
us
Input Over-Voltage-Protection (OVP)
OVP recovery time
TON(OVP)
VIN = 5 -> 10V
VIN = 10 -> 5V to output ON
6
8
10
ms
2.0
2.5
3.3
A
Input Over-Current-Protection (OCP)
OCP threshold
IOCP
OCP active time
TOCP
176
us
TON(OCP)
1
s
OCP recovery time
Over-Temperature-Protection (OTP)
OTP threshold
OTP hysteresis
165
o
40
o
*3: Single Pulse, Pulse width=10ms
Will Semiconductor Ltd.
4
u
J l, 2016 - Rev. 1.6
C
C
WS3202K
Typical Characteristics (Ta=25oC, unless otherwise noted)
2.8
2.7
VIN Increasing
6.1
OCP Threshold, IOCP (A)
OVP Threshold, VOVP (V)
6.2
6.0
5.9
VIN Decreasing
5.8
5.8
5.7
-50
-25
0
25
50
75
100
2.6
2.5
2.4
2.3
2.2
2.1
2.0
-50
125
-25
0
o
2.7
0.28
2.6
VIN Increasing
2.4
VIN Decreasing
2.2
2.1
0
25
50
75
100
0.24
0.22
0.20
0.18
0.16
0.14
IOUT = 0.7ADC
0.12
0.10
-50
125
-25
0
25
50
75
100
125
o
o
Temperature, TA ( C)
Temperature, TA ( C)
UVLO threshold vs. Temperature
IN-to-OUT ON resistance vs. Temperature
0.34
6.0
0.32
VIN=5V
IOUT=DC Current
5.0
O
TA=-40 C
4.5
O
TA=25 C
4.0
VIN=5V
IOUT=DC Current
0.30
O
TA=85 C
3.5
ON Resistance, RON (:)
5.5
Output Voltage, VOUT (V)
125
0.26
ON Resistance, RON (:)
UVLO Threshold, VUVLO (V)
0.30
-25
100
OCP threshold vs. Temperature
2.8
2.0
-50
75
Temperature, TA ( C)
OVP threshold vs. Temperature
2.3
50
o
Temperature, TA ( C)
2.5
25
O
TA=85 C
0.28
0.26
0.24
O
TA=25 C
0.22
0.20
0.18
O
TA=-40 C
0.16
0.14
3.0
0
500
1000
1500
2000
2500
0.12
Load Current, IOUT (mA)
500
1000
1500
2000
2500
Load Current, IOUT (mA)
ON resistance vs. Output current
Output voltage vs. Output current
Will Semiconductor Ltd.
0
5
u
J l, 2016 - Rev. 1.6
WS3202K
Normally Power ON
Power ON with Input Overvoltage
OVP Active Time
OVP Recovery Time
OCP Active Time
OCP Recovery Time
Will Semiconductor Ltd.
6
u
J l, 2016 - Rev. 1.6
WS3202K
Normally Power OFF
Will Semiconductor Ltd.
7
u
J l, 2016 - Rev. 1.6
WS3202K
Package outline dimensions
SOT-89-3L
Symbol
Dimensions in millimeter
Min.
Typ.
Max.
A
1.400
1.500
1.600
b
0.320
0.420
0.520
b1
0.400
0.490
0.580
c
0.350
-
0.440
D
4.400
4.500
4.600
D1
1.550 Ref.
E
2.300
2.450
2.600
E1
3.940
4.100
4.250
e
1.500 Typ.
e1
3.000 Typ.
L
Will Semiconductor Ltd.
0.900
-
8
1.200
u
J l, 2016 - Rev. 1.6
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