SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET PRODUCT SUMMARY VDS (V) 40 RDS(on) () at VGS = 10 V 0.009 FEATURES RDS(on) () at VGS = 4.5 V 0.012 ID (A) 20.7 • Halogen-free According to IEC 61249-2-21 Definition Configuration • TrenchFET® Power MOSFET Single • AEC-Q101 Qualified D • 100 % Rg and UIS Tested SO-8 • Compliant to RoHS Directive 2002/95/EC S 1 8 D S 2 7 D S 3 6 D G 4 5 D G S Top View N-Channel MOSFET ORDERING INFORMATION Package SO-8 Lead (Pb)-free and Halogen-free SQ4840EY-T1-GE3 ABSOLUTE MAXIMUM RATINGS (TC = 25 °C, unless otherwise noted) PARAMETER SYMBOL LIMIT Drain-Source Voltage VDS 40 Gate-Source Voltage VGS ± 20 Continuous Drain Current TC = 25 °C TC = 125 °C Continuous Source Current (Diode Conduction) Pulsed Drain Currenta Single Pulse Avalanche Current Single Pulse Avalanche Energy Maximum Power Dissipationa L = 0.1 mH TC = 25 °C TC = 125 °C Operating Junction and Storage Temperature Range ID 12 IS 6.5 82 IAS 30 PD V 20.7 IDM EAS UNIT 45 7.1 2.4 A mJ W TJ, Tstg - 55 to + 175 °C SYMBOL LIMIT UNIT RthJA 85 RthJF 21 THERMAL RESISTANCE RATINGS PARAMETER Junction-to-Ambient Junction-to-Foot (Drain) PCB Mountb °C/W Notes a. Pulse test; pulse width 300 μs, duty cycle 2 %. b. When mounted on 1" square PCB (FR-4 material). 1 / 10 www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET SPECIFICATIONS (TC = 25 °C, unless otherwise noted) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT Static Drain-Source Breakdown Voltage Gate-Source Threshold Voltage Gate-Source Leakage VGS = 0 , ID = 250 μA 40 - - VDS = VGS, ID = 250 μA 1.5 2.0 2.5 VDS = 0 V, VGS = ± 20 V IGSS Zero Gate Voltage Drain Current IDSS On-State Drain Currenta ID(on) Drain-Source On-State Resistancea Forward Transconductanceb VDS VGS(th) RDS(on) gfs - - ± 100 VGS = 0 V VDS = 40 V - - 1.0 VGS = 0 V VDS = 40 V, TJ = 125 °C - - 50 VGS = 0 V VDS = 40 V, TJ = 175 °C - - 150 VGS = 10 V VDS5 V 30 - - VGS = 10 V ID = 14 A - 0.0075 0.009 VGS = 10 V ID = 14 A, TC = 125 °C - - 0.014 VGS = 10 V ID = 14 A, TC = 175 °C - - 0.018 VGS = 4.5 V ID = 12 A - 0.010 0.012 - 45 - - 1950 2440 VDS = 15 V, ID = 14 A V nA μA A S Dynamicb Input Capacitance Ciss VGS = 0 V Output Capacitance Coss - 505 630 Reverse Transfer Capacitance Crss - 220 280 Total Gate Chargec Qg - 41 62 - 5.5 - - 8.7 - 0.2 - 1.6 - 14 21 - 11 17 - 45 68 - 17 26 - - 82 A - 0.75 1.1 V Gate-Source Chargec Gate-Drain Chargec Gate Resistance Turn-On Delay Timec Rise Timec Turn-Off Delay Qgs Fall Timec Source-Drain Diode Ratings and VGS = 10 V VDS = 20 V, ID = 14 A Qgd Rg f = 1 MHz td(on) tr Timec VDS = 20 V, f = 1 MHz td(off) VDD = 20 V, RL = 20 ID 1 A, VGEN = 10 V, Rg = 6 tf pF nC ns Characteristicsb Pulsed Currenta ISM Forward Voltage VSD IF = 2.8 A, VGS = 0 Notes a. Pulse test; pulse width 300 μs, duty cycle 2 %. b. Guaranteed by design, not subject to production testing. c. Independent of operating temperature. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 / 10 www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET TYPICAL CHARACTERISTICS (TA = 25 °C, unless otherwise noted) 50 50 V GS = 10 V thru 4 V 40 I D - Drain Current (A) I D - Drain Current (A) 40 30 20 V GS = 3 V 10 30 20 T C = 25 °C 10 T C = 125 °C T C = - 55 °C 0 0 0 2 4 6 8 V DS - Drain-to-Source Voltage (V) 0 10 1 2 3 4 V GS - Gate-to-Source Voltage (V) Transfer Characteristics Output Characteristics 80 0.025 64 R DS(on) - On-Resistance (Ω) g fs - Transconductance (S) 5 T C = - 55 °C 48 T C = 25 °C 32 T C = 125 °C 16 0 0.020 0.015 V GS = 4.5 V 0.010 V GS = 10 V 0.005 0.000 0 4 8 12 16 20 24 28 ID - Drain Current (A) 0 10 20 30 ID - Drain Current (A) 40 50 Transconductance On-Resistance vs. Drain Current 10 3000 ID = 14 A VGS - Gate-to-Source Voltage (V) 2500 C - Capacitance (pF) Ciss 2000 1500 Coss 1000 500 8 V DS = 20 V 6 4 2 Crss 0 0 0 10 20 30 V DS - Drain-to-Source Voltage (V) Capacitance 3 / 10 40 0 5 10 15 20 25 30 35 Qg - Total Gate Charge (nC) 40 45 Gate Charge www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET TYPICAL CHARACTERISTICS (TA = 25 °C, unless otherwise noted) 100 ID = 14 A V GS = 10 V 10 1.7 1.4 I S - Source Current (A) R DS(on) - On-Resistance (Normalized) 2.0 V GS = 4.5 V 1.1 T J = 150 °C 1 T J = 25 °C 0.1 0.01 0.8 0.5 - 50 - 25 0 25 50 75 100 125 150 175 0.001 0.0 0.2 T J - Junction Temperature (°C) On-Resistance vs. Junction Temperature 1.2 Source Drain Diode Forward Voltage 0.10 0.4 0.08 VGS(th) Variance (V) 0 0.06 0.04 TJ = 125 °C - 0.4 ID = 5 mA - 0.8 0.02 ID = 250 μA TJ = 25 °C 0 0 1 2 3 4 5 6 7 8 VGS - Gate-to-Source Voltage (V) 9 10 - 1.2 - 50 - 25 0 On-Resistance vs. Gate-to-Source Voltage 25 50 75 100 T J - Temperature (°C) 125 150 175 Threshold Voltage 54 VDS - Drain-to-Source Voltage (V) R DS(on) - On-Resistance (Ω) 0.4 0.6 0.8 1.0 V SD - Source-to-Drain Voltage (V) ID = 1 mA 52 50 48 46 44 - 50 - 25 0 25 50 75 100 125 TJ - Junction Temperature (°C) 150 175 Drain Source Breakdown vs. Junction Temperature 4 / 10 www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET THERMAL RATINGS (TA = 25 °C, unless otherwise noted) IDM Limited 100 ID - Drain Current (A) Limited by RDS(on)* 100 µs 10 1 ms 10 ms 1 100 ms 1s 10 s, DC 0.1 TC = 25 °C Single Pulse 0.01 0.01 BVDSS Limited 0.1 1 10 100 VDS - Drain-to-Source Voltage (V) * VGS > minimum VGS at which RDS(on) is specified Safe Operating Area 1 Normalized Effective Transient Thermal Impedance Duty Cycle = 0.5 0.2 0.1 Notes: 0.1 PDM 0.05 t1 t2 1. Duty Cycle, D = t1 t2 2. Per Unit Base = R thJA = 85 °C/W 0.02 3. T JM - TA = PDMZthJA(t) Single Pulse 0.01 10 -4 10 -3 4. Surface Mounted 10 -2 10 -1 1 Square Wave Pulse Duration (s) 100 10 1000 Normalized Thermal Transient Impedance, Junction-to-Ambient 5 / 10 www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET THERMAL RATINGS (TA = 25 °C, unless otherwise noted) 1 Normalized Effective Transient Thermal Impedance Duty Cycle = 0.5 0.2 0.1 0.1 0.05 0.02 Single Pulse 0.01 10 -4 10 -3 10 -2 10 -1 1 10 Square Wave Pulse Duration (s) Normalized Thermal Transient Impedance, Junction-to-Foot Note • The characteristics shown in the two graphs - Normalized Transient Thermal Impedance Junction-to-Ambient (25 °C) - Normalized Transient Thermal Impedance Junction-to-Foot (25 °C) are given for general guidelines only to enable the user to get a “ball park” indication of part capabilities. The data are extracted from single pulse transient thermal impedance characteristics which are developed from empirical measurements. The latter is valid for the part mounted on printed circuit board - FR4, size 1" x 1" x 0.062", double sided with 2 oz. copper, 100 % on both sides. The part capabilities can widely vary depending on actual application parameters and operating conditions. 6 / 10 www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET SOIC (NARROW): 8-LEAD JEDEC Part Number: MS-012 8 6 7 5 E 1 3 2 H 4 S h x 45 D C 0.25 mm (Gage Plane) A B e All Leads q A1 L 0.004" MILLIMETERS DIM Min INCHES Max Min Max A 1.35 1.75 0.053 0.069 A1 0.10 0.20 0.004 0.008 B 0.35 0.51 0.014 0.020 C 0.19 0.25 0.0075 0.010 D 4.80 5.00 0.189 0.196 E 3.80 4.00 0.150 e 0.101 mm 1.27 BSC 0.157 0.050 BSC H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.50 0.93 0.020 0.037 q 0° 8° 0° 8° S 0.44 0.64 0.018 0.026 ECN: C-06527-Rev. I, 11-Sep-06 DWG: 5498 7 / 10 www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET Mounting LITTLE FOOT®, SO-8 Power MOSFETs Wharton McDaniel Surface-mounted LITTLE FOOT power MOSFETs use integrated circuit and small-signal packages which have been been modified to provide the heat transfer capabilities required by power devices. Leadframe materials and design, molding compounds, and die attach materials have been changed, while the footprint of the packages remains the same. See Application Note 826, Recommended Minimum Pad Patterns With Outline Drawing Access for Vishay Siliconix MOSFETs, ( www.freescale.net.cn ), for the basis of the pad design for a LITTLE FOOT SO-8 power MOSFET. In converting this recommended minimum pad to the pad set for a power MOSFET, designers must make two connections: an electrical connection and a thermal connection, to draw heat away from the package. In the case of the SO-8 package, the thermal connections are very simple. Pins 5, 6, 7, and 8 are the drain of the MOSFET for a single MOSFET package and are connected together. In a dual package, pins 5 and 6 are one drain, and pins 7 and 8 are the other drain. For a small-signal device or integrated circuit, typical connections would be made with traces that are 0.020 inches wide. Since the drain pins serve the additional function of providing the thermal connection to the package, this level of connection is inadequate. The total cross section of the copper may be adequate to carry the current required for the application, but it presents a large thermal impedance. Also, heat spreads in a circular fashion from the heat source. In this case the drain pins are the heat sources when looking at heat spread on the PC board. 0.288 7.3 0.050 1.27 0.196 5.0 0.027 0.69 0.078 1.98 0.2 5.07 Figure 1. Single MOSFET SO-8 Pad Pattern With Copper Spreading 8 / 10 0.288 7.3 0.050 1.27 0.088 2.25 0.088 2.25 0.027 0.69 0.078 1.98 0.2 5.07 Figure 2. Dual MOSFET SO-8 Pad Pattern With Copper Spreading The minimum recommended pad patterns for the single-MOSFET SO-8 with copper spreading (Figure 1) and dual-MOSFET SO-8 with copper spreading (Figure 2) show the starting point for utilizing the board area available for the heat-spreading copper. To create this pattern, a plane of copper overlies the drain pins. The copper plane connects the drain pins electrically, but more importantly provides planar copper to draw heat from the drain leads and start the process of spreading the heat so it can be dissipated into the ambient air. These patterns use all the available area underneath the body for this purpose. Since surface-mounted packages are small, and reflow soldering is the most common way in which these are affixed to the PC board, “thermal” connections from the planar copper to the pads have not been used. Even if additional planar copper area is used, there should be no problems in the soldering process. The actual solder connections are defined by the solder mask openings. By combining the basic footprint with the copper plane on the drain pins, the solder mask generation occurs automatically. A final item to keep in mind is the width of the power traces. The absolute minimum power trace width must be determined by the amount of current it has to carry. For thermal reasons, this minimum width should be at least 0.020 inches. The use of wide traces connected to the drain plane provides a low impedance path for heat to move away from the device. www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET RECOMMENDED MINIMUM PADS FOR SO-8 0.172 (4.369) 0.028 0.022 0.050 (0.559) (1.270) 0.152 (3.861) 0.047 (1.194) 0.246 (6.248) (0.711) Recommended Minimum Pads Dimensions in Inches/(mm) Return to Index Return to Index 9 / 10 www.freescale.net.cn SQ4840EY Automotive N-Channel 40 V (D-S) 175 °C MOSFET Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. freestyle Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on it s or their behalf (collectively, “freestyle”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. freestyle makes no warranty, representation or guarantee regarding the suitabilit y of the products for any particular purpose or the continuing production of any product. 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