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| AO7408 N-Channel Enhancement Mode Field Effect Transistor General Description The AO7408 uses advanced trench technology to provide excellent RDS(ON), low gate charge and operation with gate voltages as low as 1.8V, in the small SOT323 footprint. It can be used for a wide variety of applications, including load switching, low current inverters and low current DC-DC converters. Standard Product AO7408 is Pb-free (meets ROHS & Sony 259 specifications). AO7408L is a Green Product ordering option. AO7408 and AO7408L are electrically identical. Features VDS (V) = 20V ID = 2.2 A (VGS = 4.5V) RDS(ON) < 82m (VGS = 4.5V) RDS(ON) < 95m (VGS = 2.5V) RDS(ON) < 120m (VGS = 1.8V) SC-70-6 (SOT-323) Top View D D G D D S D G S 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 B TA=25C Power Dissipation A TA=70C Junction and Storage Temperature Range Thermal Characteristics Parameter Maximum Junction-to-Ambient Maximum Junction-to-Ambient Maximum Junction-to-Lead C TA=25C TA=70C ID IDM PD TJ, TSTG Maximum 20 8 2.2 1.75 10 0.625 0.4 -55 to 150 Units V V A W C Symbol A A t 10s Steady-State Steady-State RJA RJL Typ 160 180 130 Max 200 220 160 Units C/W C/W C/W Alpha Omega Semiconductor, Ltd. AO7408 Electrical Characteristics (T J=25C unless otherwise noted) Symbol Parameter Conditions ID=250A, VGS=0V VDS=16V, VGS=0V TJ=55C VDS=0V, VGS=8V VDS=VGS ID=250A VGS=4.5V, VDS=5V VGS=4.5V, ID=2.2A RDS(ON) Static Drain-Source On-Resistance TJ=125C VGS=2.5V, ID=2.0A VGS=1.8V, ID=1A gFS VSD IS Forward Transconductance VDS=5V, ID=1.6A Diode Forward Voltage IS=1A,VGS=0V Maximum Body-Diode Continuous Current 0.4 10 67 99 78 96 6.7 0.69 1 0.91 499 VGS=0V, VDS=10V, f=1MHz VGS=0V, VDS=0V, f=1MHz 65 56 3 6.02 VGS=4.5V, VDS=10V, ID=2.2A 0.41 1.35 6.5 VGS=5V, VDS=10V, RL=4.5, RGEN=6 IF=2.2A, dI/dt=100A/s 8 61 16 23.2 8.6 82 125 95 120 0.6 Min 20 1 5 100 0.8 Typ Max Units V A nA V A m m m S V A pF pF pF nC nC nC ns ns ns ns ns nC STATIC PARAMETERS BVDSS Drain-Source Breakdown Voltage IDSS IGSS VGS(th) ID(ON) Zero Gate Voltage Drain Current Gate-Body leakage current Gate Threshold Voltage On state drain current DYNAMIC PARAMETERS Ciss Input Capacitance Coss Crss Rg Output Capacitance Reverse Transfer Capacitance Gate resistance SWITCHING PARAMETERS Qg Total Gate Charge Qgs Gate Source Charge Qgd tD(on) tr tD(off) tf trr Qrr 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 IF=2.2A, dI/dt=100A/s 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 6,12,14 are obtained using 80s 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 2 : June 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. AO7408 TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS 16 10 8V 4.5V 8 2V ID(A) 3V 2.5V 6 4 4 VGS=1.5V 2 0 0 1 2 3 4 5 0 0.5 1 1.5 2 2.5 3 VDS (Volts) Fig 1: On-Region Characteristics 140 Normalized On-Resistance 1.8 1.6 1.4 1.2 1 0.8 0 2 4 6 8 0 25 50 75 100 125 150 175 ID (A) Figure 3: On-Resistance vs. Drain Current and Gate Voltage 180 160 ID=2.2A 140 RDS(ON) (m) IS (A) 120 100 80 60 1 2 3 4 5 6 7 8 VGS (Volts) Figure 5: On-Resistance vs. Gate-Source Voltage 25C 1E-01 1E-02 25C 1E-03 1E-04 1E-05 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 VSD (Volts) Figure 6: Body-Diode Characteristics 1E+01 1E+00 125C Temperature (C) Figure 4: On-Resistance vs. Junction Temperature VGS(Volts) Figure 2: Transfer Characteristics VDS=5V 25C 125C 12 ID (A) 8 0 VGS=2.5V ID=2.0A VGS=1.8V ID=1.0A VGS=4.5V ID=2.2A 120 RDS(ON) (m) VGS=1.8V 100 VGS=2.5V 80 VGS=4.5V 60 125C Alpha Omega Semiconductor, Ltd. AO7408 TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS 5 4 VGS (Volts) 3 2 1 0 0 1 2 3 4 5 6 7 Qg (nC) Figure 7: Gate-Charge Characteristics VDS=10V ID=2.2A Capacitance (pF) 1000 800 Ciss 600 400 Coss 200 0 0 5 10 15 20 VDS (Volts) Figure 8: Capacitance Characteristics Crss 100.0 TJ(Max)=150C TA=25C 10.0 RDS(ON) limited 0.1s 1.0 10ms 1ms 100s 16 TJ(Max)=150C TA=25C 12 10s Power (W) ID (Amps) 8 4 1s 0.1 0.1 10s DC 1 VDS (Volts) 10 100 0 0.001 0.01 0.1 1 10 100 1000 Figure 9: Maximum Forward Biased Safe Operating Area (Note E) Pulse Width (s) Figure 10: Single Pulse Power Rating Junction-toAmbient (Note E) 10 ZJA Normalized Transient Thermal Resistance D=Ton/T TJ,PK=TA+PDM.ZJA.RJA RJA=360C/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 T 0.01 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1000 Pulse Width (s) Figure 11: Normalized Maximum Transient Thermal Impedance Alpha Omega Semiconductor, Ltd. |
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