WTK9431 DRAIN SOURCE VOLTAGE 6 5 D 4 G -3.5 AMPERES D 7 3 S D S 2 Features: DRAIN CURRENT 8 S 1 P b Lead(Pb)-Free D Surface Mount P-Channel Enhancement Mode MOSFET -20 VOLTAGE * Super high dense * Cell design for low RDS(ON) * RDS(ON)<130mΩ@V GS = -4.5V * RDS(ON)<180mΩ@V GS = -2.5V * Simple Drive Requirement * Lower On-resistance * Fast Switching 1 SOP-8 Description: The WTK9431 provide the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. The SOP-8 package is universally preferred for all commercial-industrial surface mount applications and suited for low voltage applications such as DC/DC converters. Maximum Ratings (TA=25˚C Unless Otherwise Specified) Rating Symbol Value Unite Drain-Source Voltage VDS -20 V Gate-Source Voltage VGS ±8 V ID -3.5 -2.8 A Pulsed Drain Current(1,2) IDM -18 A Power Dissipation PD 2.5 W R θJA 50 °C/W TJ +150 °C Tstg -55 to +150 °C Continuous Drain Current(3) (TA =25°C) (TA =70°C) Maximax Junction-to-Ambient Operating Junction Temperature Range Storage Temperature Range Device Marking WTK9431=9431SC WEITRON http://www.weitron.com.tw 1/5 07-Nov-08 WTK9431 Electrical Characteristics(TA =25°C Unless otherwise noted) Symbol Min Typ Max Unit V(BR)DSS -20 - - V VGS (th) -0.4 - -1.0 V Gate-Source Leakage Current +8V VDS=0V, VGS=- IGSS - - +100 - nA Zero Gate Voltage Drain Current VDS=-16V, VGS=0V VDS=-12V, VGS=0V IDSS - - -1 -25 µA Static Characteristic Drain-Source Breakdown Voltage VGS=0V, ID=-250 µA Gate-Source Threshold Voltage VDS=VGS, ID=-250 µA Drain-Source On-Resistance(2) VGS=-10V, ID=-5.3A VGS=-4.5V, ID=-4.2A R DS(on) - - 130 180 mΩ Forward Transconductance(2) VDS=-5V, ID=-3.5A gfs - 6.5 - S Ciss - 405 - Coss - 170 - Crss - 45 - Turn-On Delay Time(2) VDD = -5V, ID = -1A, VGS = -4.5V, RG = 6Ω td(on) - 6.5 - nS Rise Time VDD = -5V, ID = -1A, VGS = -4.5V, RG = 6Ω tr - 20 - nS - 31 - nS Dynamic Input Capacitance VDS=-10V, VGS=0V, f=1MHZ Output Capacitance VDS=-10V, VGS=0V, f=1MHZ Reverse Transfer Capacitance VDS=-10V, VGS=0V, f=1MHZ PF Switching Turn-O Time VDD = -5V, ID = -1A, VGS = -4.5V, RG = 6Ω t ) Fall Time VDD = -5V, ID = -1A, VGS = -4.5V, RG = 6Ω tf - 21 - nS Total Gate Charge(2) VDS=-5V, ID=-5.3A,VGS=-4.5V Qg - 6 8.5 nc Gate-Source Charge VDS=-5V, ID=-5.3A,VGS=-4.5V Qgs - 0.8 - nc Gate-Drain Charge VDS=-5V, ID=-5.3A,VGS=-4.5V Qgd - 1.3 - nc VSD - - -1.2 V IS - - -2.1 A Drain-Source Diode Forward Voltage(2) VGS=0V, IS=-2.1A Continuous Source Current (Body Diode) VD=VG=0V, VS=-1.2V Notes: 1. Pulse width limited by Max. junction temperature. 2. Pulse width 300µs, duty cycle ≤ 2%. 3. Surface mounted on 1 in2 copper pad of FR4 board; 125°C/W when mounted on Min. copper pad. WEITRON http://www.weitron.com.tw 2/5 07-Nov-08 WTK9431 WEITRON Characteristics Curve WEITRON http://www.weitron.com.tw 3/5 07-Nov-08 WTK9431 WEITRON http://www.weitron.com.tw WEITRON 4/5 07-Nov-08 WTK9431 SOP-8 Package Outline Dimensions Unit:mm 1 L θ E1 D 7(4X) e B A1 2A A C 7 (4X) eB SYMBOLS A A1 B C D E1 Be e L θ WEITRON http://www.weitron.com.tw MILLIMETERS MAX MIN 1.75 1.35 0.20 0.10 0.45 0.35 0.18 0.23 4.69 4.98 3.56 4.06 5.70 6.30 1.27 BSC 0.60 0.80 0˚ 8˚ 5/5 07-Nov-08