UNISONIC TECHNOLOGIES CO., LTD UT4957 Power MOSFET P-CHANNEL ENHANCEMENT MODE POWER MOSFET DESCRIPTION The UT4957 uses advanced trench technology to provide excellent RDS(ON), low gate charge and operation with low gate voltages. This device is suitable for use as a load switch or in PWM applications. FEATURES * RDS(ON)<24mΩ @VGS=-10V * RDS(ON)<36mΩ @VGS=4.5V * Low capacitance * Low gate charge * Fast switching capability * Avalanche energy specified Lead-free: UT4957L Halogen-free: UT4957G SYMBOL (7) (8) D1 (5) (6) D2 (4) G2 (2) G1 S1 (1) S2 (3) ORDERING INFORMATION Normal UT4957-S08-R UT4957-S08-T Ordering Number Lead Free UT4957L-S08-R UT4957L-S08-T www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., Ltd Halogen Free UT4957G-S08-R UT4957G-S08-T Package Packing SOP-8 SOP-8 Tape Reel Tube 1 of 4 QW-R502-279.A UT4957 Power MOSFET PIN CONFIGURATION UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R502-279.A UT4957 Power MOSFET ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Drain-Source Voltage VDSS -30 V Gate-Source Voltage VGSS ±20 V Continuous Drain Current ID -7.7 A Pulsed Drain Current (Note 2) IDM -30 A Power Dissipation Ta=25°C PD 2 W Junction Temperature TJ +150 °C Storage Temperature TSTG -55 ~ +150 °C Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. Pulse width limited by TJ(MAX) THERMAL DATA PARAMETER Junction-to-Ambient SYMBOL θJA MIN TYP MAX 62.5 UNIT °C/W ELECTRICAL CHARACTERISTICS (TJ =25°C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS OFF CHARACTERISTICS Drain-Source Breakdown Voltage BVDSS VGS=0V, ID=-250µA Breakdown Voltage Temperature ΔBVDSS/ΔTJ Reference to 25°C, ID=-1mA Coefficient Drain-Source Leakage Current IDSS VDS=-30V, VGS=0V Gate-Source Leakage Current IGSS VGS=±20V, VDS=0V ON CHARACTERISTICS Gate Threshold Voltage VGS(TH) VDS=VGS, IDS=-250µA Static Drain-Source On-Resistance VGS=-10V, ID=-7A RDS(ON) (Note) VGS=4.5V, ID=-5A DYNAMIC PARAMETERS Input Capacitance CISS VDS=-25V, VGS=0V, f=1.0MHz Output Capacitance COSS Reverse Transfer Capacitance CRSS SWITCHING PARAMETERS Turn-ON Delay Time (Note) tD(ON) VDS=-15V, ID=-1A, VGS=-10V Turn-ON Rise Time tR RG=3.3Ω, RD=15Ω Turn-OFF Delay Time tD(OFF) Turn-OFF Fall-Time tF Total Gate Charge (Note) QG VDS=-24V, VGS=-4.5V, ID=-7A Gate Source Charge QGS Gate Drain Charge QGD SOURCE- DRAIN DIODE RATINGS AND CHARACTERISTICS Diode Forward Voltage VSD IS=-1.7A, VGS=0V Body Diode Reverse Recovery Time tRR IS=-7A, VGS=0V, dI/dt=100A/μs Body Diode Reverse Recovery QRR Charge Note: Pulse width <300us , duty cycle <2%. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX -30 UNIT V -0.02 -1 20 30 1670 530 435 14 11 38 25 27 5 18 V/°C -1 ±100 µA nA -3 24 36 V 2670 45 -1.2 mΩ pF pF pF ns ns ns ns nC nC nC 35 V ns 34 nC 3 of 5 QW-R502-279.A UT4957 Power MOSFET TYPICAL CHARACTERISTICS Drain Current vs. Gate Threshold Voltage 450 300 400 250 350 300 200 250 150 200 100 150 100 50 0 Drain Current vs. Drain-Source Breakdown Voltage 50 0 1.0 1.5 0.5 Gate Threshold Voltage, VTH (V) 2.0 0 0 10 20 30 40 Drain-Source Breakdown Voltage, BVDSS(V) Drain-Source On-State Resistance Characteristics 12 10 8 VGS=-10V, ID=-7A 6 4 VGS=-5V, ID=-4.5A 2 0 0 50 100 150 200 Drain to Source Voltage, VDS (mV) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R502-279.A UT4957 Power MOSFET UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R502-279.A