WS3202K-3/TR

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