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| AO4822A Dual N-Channel Enhancement Mode Field Effect Transistor General Description The AO4822A uses advanced trench technology to provide excellent RDS(ON) and low gate charge. This device is suitable for use as a load switch or in PWM applications. Standard Product AO4822A is Pb-free (meets ROHS & Sony 259 specifications). AO4822AL is a Green Product ordering option. AO4822A and AO4822AL are electrically identical. Features VDS (V) = 30V ID = 8.5A (VGS = 10V) RDS(ON) < 16m (VGS = 10V) RDS(ON) < 26m (VGS = 4.5V) D1 S2 G2 S1 G1 D2 D2 D1 D1 D2 1 2 3 4 8 7 6 5 G1 S1 G2 S2 SOIC-8 Absolute Maximum Ratings TA=25C unless otherwise noted Parameter Symbol VDS Drain-Source Voltage VGS Gate-Source Voltage Continuous Drain Current A Pulsed Drain Current Power Dissipation B Maximum 30 20 8.5 6.6 30 2 1.28 -55 to 150 Units V V A TA=25C TA=70C TA=25C TA=70C ID IDM PD TJ, TSTG W C Junction and Storage Temperature Range Thermal Characteristics Parameter Maximum Junction-to-Ambient A Maximum Junction-to-Ambient A Maximum Junction-to-Lead C Symbol t 10s Steady-State Steady-State RJA RJL Typ 48 74 35 Max 62.5 110 40 Units C/W C/W C/W Alpha & Omega Semiconductor, Ltd. AO4822A Electrical Characteristics (T J=25C unless otherwise noted) Parameter Symbol STATIC PARAMETERS BVDSS Drain-Source Breakdown Voltage IDSS IGSS VGS(th) ID(ON) RDS(ON) gFS VSD IS Zero Gate Voltage Drain Current Gate-Body leakage current Gate Threshold Voltage On state drain current Static Drain-Source On-Resistance VGS=4.5V, ID=6A Forward Transconductance VDS=5V, ID=8.5A IS=1A,V GS=0V Diode Forward Voltage Maximum Body-Diode Continuous Current Conditions ID=250A, VGS=0V VDS=24V, V GS=0V TJ=55C VDS=0V, VGS= 20V VDS=VGS ID=250A VGS=10V, V DS=5V VGS=10V, ID=8.5A TJ=125C 1 30 13.4 20 19.5 23 0.75 1 3 955 VGS=0V, VDS=15V, f=1MHz VGS=0V, VDS=0V, f=1MHz 145 112 0.5 17 VGS=10V, V DS=15V, ID=8.5A 9 3.4 4.7 5 VGS=10V, V DS=15V, R L=1.8, RGEN=3 IF=8.5A, dI/dt=100A/s IF=8.5A, dI/dt=100A/s 6 19 4.5 16.7 6.7 6.5 7.5 25 6 21 10 0.85 24 12 1250 16 25 26 1.7 Min 30 1 5 100 3 Typ Max Units V A nA V A m m S V A pF pF pF nC nC nC nC ns ns ns ns ns nC DYNAMIC PARAMETERS Ciss Input Capacitance Coss Crss Rg Output Capacitance Reverse Transfer Capacitance Gate resistance SWITCHING PARAMETERS Qg(10V) Total Gate Charge Qg(4.5V) Total Gate Charge Qgs Qgd tD(on) tr tD(off) tf trr Qrr Gate Source Charge Gate Drain Charge Turn-On DelayTime Turn-On Rise Time Turn-Off DelayTime Turn-Off Fall Time Body Diode Reverse Recovery Time Body Diode Reverse Recovery Charge A: The value of R JA is measured with the device mounted on 1in2 FR-4 board with 2oz. Copper, in a still air environment with TA=25C. The value in any given application depends on the user's specific board design. The current rating is based on the t 10s thermal resistance rating. B: Repetitive rating, pulse width limited by junction temperature. C. The R JA is the sum of the thermal impedence from junction to lead RJL and lead to ambient. D. The static characteristics in Figures 1 to 6 are obtained using 80 s pulses, duty cycle 0.5% max. E. These tests are performed with the device mounted on 1 in2 FR-4 board with 2oz. Copper, in a still air environment with TA=25C. The SOA curve provides a single pulse rating. Rev 0: Aug 2005 THIS PRODUCT HAS BEEN DESIGNED AND QUALIFIED FOR THE CONSUMER MARKET. APPLICATIONS OR USES AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS ARE NOT AUTHORIZED. AOS DOES NOT ASSUME ANY LIABILITY ARISING OUT OF SUCH APPLICATIONS OR USES OF ITS PRODUCTS. AOS RESERVES THE RIGHT TO IMPROVE PRODUCT DESIGN, FUNCTIONS AND RELIABILITY WITHOUT NOTICE. Alpha & Omega Semiconductor, Ltd. AO4822A TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS 30 25 20 ID (A) 15 10 5 0 0 1 2 3 4 5 VDS (Volts) Fig 1: On-Region Characteristics 26 24 22 RDS(ON) (m) 20 18 16 14 12 10 0 5 10 15 20 0.8 0 25 50 75 100 125 150 175 Temperature (C) Figure 4: On-Resistance vs. Junction Temperature 1.0E+01 1.0E+00 40 RDS(ON) (m) ID=8.5A IS (A) 1.0E-01 125C 1.0E-02 25C 1.0E-03 20 25C 10 2 4 6 8 10 VGS (Volts) Figure 5: On-Resistance vs. Gate-Source Voltage 1.0E-04 1.0E-05 0.0 0.2 0.4 0.6 0.8 1.0 VSD (Volts) Figure 6: Body-Diode Characteristics ID (A) Figure 3: On-Resistance vs. Drain Current and Gate Voltage 50 VGS=10V Normalized On-Resistance VGS=4.5V 1.6 VGS=10V ID=8.5A 1.4 VGS=4.5V 1.2 4V 10V 4.5V 3.5V 21 ID(A) 125C 14 VGS=3V 7 35 28 VDS=5V 13.4 22 0 1.5 2 2.5 30.76 3.5 25C 16 26 4 4.5 VGS(Volts) Figure 2: Transfer Characteristics 1 30 125C Alpha & Omega Semiconductor, Ltd. AO4822A TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS 10 8 VGS (Volts) 6 4 2 0 0 4 8 12 16 20 Qg (nC) Figure 7: Gate-Charge Characteristics 1500 VDS=15V ID=8.5A Capacitance (pF) 1250 Ciss 1000 750 500 250 0 0 Crss 5 10 Coss 13.4 22 16 26 30 15 20 25 0.76 VDS (Volts) Figure 8: Capacitance Characteristics 100.0 RDS(ON) limited 1ms 10ms 0.1s 100s 10s Power (W) 50 40 30 20 10 0 0.001 TJ(Max)=150C TA=25C ID (Amps) 10.0 1.0 TJ(Max)=150C TA=25C 0.1 0.1 1 1s 10s DC 10 VDS (Volts) Figure 9: Maximum Forward Biased Safe Operating Area (Note E) 100 0.01 0.1 1 10 100 1000 Pulse Width (s) Figure 10: Single Pulse Power Rating Junction-toAmbient (Note E) 10 ZJA Normalized Transient Thermal Resistance D=T on/T TJ,PK=T A+PDM.ZJA.RJA RJA=62.5C/W In descending order D=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse 1 0.1 PD Ton Single Pulse 0.01 0.00001 0.0001 0.001 0.01 0.1 1 T 10 100 1000 Pulse Width (s) Figure 11: Normalized Maximum Transient Thermal Impedance Alpha & Omega Semiconductor, Ltd. |
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