ws3202e over voltage and over current protection ic descriptions the ws3202e 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 ws3202e is available in sot-23-6l package. standard products are pb-free and halogen-free. features high voltage technology maximum input voltage : 25v output power on time : 8ms (typ.) ovp threshold : 6.1v (typ.) ovp response time : <1us ocp threshold : 2a (min.) output discharge package : sot-23-6l applications gps pmp mid pad digital cameras digital videos sot-23-6l pin configuration (top view) ws61 = device code t = series code y = year ww = week marking order information device package shipping ws3202e61-6/tr sot-23-6l 3000/reel&tape 123 4 5 6 gnd gnd gnd gnd in out 1 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
typical applications block diagram pin descriptions pin no. symbol descriptions 1, 2, 5, 6 gnd power ground 3 in input pin, connect to ac adaptor or vbus. a 1uf low esr ceramic capacitor or larger must be connected as close as to this pin. it is recommended to use 50v capacitor or according to application. 4 out output pin, connect to load. vref gnd in out otp control logic ocp charge pump ws3202e 2 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
absolute maximum ratings parameter symbol value unit input voltage (in pin) v in -0.3 ~ 25 v output voltage (out pin) v out -0.3 ~ 6.5 v power dissipation * 1 * 3 0.5 w power dissipation * 2 * 3 p d 0.3 w thermal resistance * 1 250 o c/w thermal resistance * 2 r ja 416 o c/w junction temperature t j 150 o c lead temperature(10s) t l 260 o c storage temperature tstg -55 ~ 150 o c hbm 8000 v esd ratings mm 1000 v 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 symbol value unit input voltage v in 3 ~ 24 v output current i out 1.5 a ambient operating temperature topr -40 ~ 85 o c ws3202e 3 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
electronics characteristics (ta=25 o c, unless otherwise noted) *3: single pulse, pulse width=10ms parameter symbol test conditions min. typ. max. unit dc characteristics and power-on-reset input quiescent current i q v in =5v, i out =0a 280 350 ua in-to-out on resistance * 3 r on v in =5v, i out =0.7a 190 220 m output discharge resistance r discharge 500 under voltage lock out threshold uvlo v in increasing from 0~3v 2.3 2.8 v under voltage lock out hysteresis v hys-uvlo v in decreasing from 3~0v 200 250 300 mv output power-on time t on v in = 0 -> 5v to output on 6 8 10 ms input over-voltage-protection (ovp) ovp threshold v ovp v in increasing from 5~7v 5.8 6.1 6.4 v ovp hysteresis v hys-ovp v in decreasing from 7~5v 200 300 400 mv ovp active time t ovp v in = 5 -> 10v 1 us ovp recovery time t on(ovp) v in = 10 -> 5v to output on 6 8 10 ms input over-current-protection (ocp) ocp threshold i ocp 2.0 2.5 3.3 a ocp active time t ocp 176 us ocp recovery time t on(ocp) 1 s over-temperature-protection (otp) otp threshold 165 o c otp hysteresis 40 o c ws3202e 4 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
typical characteristics (ta=25 o c, unless otherwise noted) ovp threshold vs. temperature uvlo threshold vs. temperature output voltage vs. output current ocp threshold vs. temperature in-to-out on resistance vs. temperature on resistance vs. output current -50 -25 0 25 50 75 100 125 5.7 5.8 5.8 5.9 6.0 6.1 6.2 v in decreasing ovp threshold, v ovp (v) temperature, t a ( o c) v in increasing -50 -25 0 25 50 75 100 125 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 ocp threshold, i ocp (a) temperature, t a ( o c) -50 -25 0 25 50 75 100 125 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 v in decreasing uvlo threshold, v uvlo (v) temperature, t a ( o c) v in increasing -50 -25 0 25 50 75 100 125 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 i out = 0.7a dc on resistance, r on ( ) temperature, t a ( o c) 0 500 1000 1500 2000 2500 3.0 3.5 4.0 4.5 5.0 5.5 6.0 t a =-40 o c t a =85 o c t a =25 o c output voltage, v out (v) load current, i out (ma) v in =5v i out =dc current 0 500 1000 1500 2000 2500 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.34 t a =-40 o c t a =85 o c v in =5v i out =dc current t a =25 o c on resistance, r on ( ) load current, i out (ma) ws3202e 5 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
normally power on ovp active time ocp active time power on with input overvoltage ovp recovery time ocp recovery time ws3202e 6 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
normally power off ws3202e 7 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
package outline dimensions sot-23-6l dimensions in millimeters symbol min. typ. max. a 1.050 - 1.250 a1 0.000 - 0.100 a2 1.050 - 1.150 b 0.300 0.400 0.500 c 0.100 - 0.200 d 2.820 2.900 3.020 e 1.500 1.600 1.700 e1 2.650 2.800 2.950 e 0.950 typ. e1 1.800 1.900 2.000 l 0.300 - 0.600 0 o - 8 o ws3202e 8 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
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