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| Data Sheet No. PD60286 IR3316S LOW EMI CURRENT SENSE HIGH SIDE SWITCH Features * * * * * * * * Load current feedback Programmable over current shutdown Active clamp ESD protection Input referenced to Vcc Over temperature shutdown Switching time optimized for low EMI Reverse battery protection Product Summary Rds(on) 7 m max. Vcc op. 6 to 26V Current Ratio 8800 Prog. Ishutdown 10 to 90A Vclamp 40V Packages Description The IR3316S is a fully protected 4 terminals high side switch. The input signal is referenced to Vcc. When the input voltage Vcc - Vin is higher than the specified threshold, the output power Mosfet is turned on. When the Vcc - Vin is lower than the specified Vil threshold, the output Mosfet is turned off. A current proportional to the power Mosfet current is sourced to the Ifb pin. Over current shutdown occurs when Vst-Vin > 4.5V. The current shutdown threshold is adjusted by selecting the proper RIfb. Either over current and over temperature latches off the switch. The device is reset by pulling the input pin high. Other integrated protections (ESD, reverse battery, active clamp) make the switch very rugged in automotive environment. DPak Pin 4 and 5 fused IR3316S Typical Connection Vcc IN Ifb IR3316S Battery Out Current feeback Input On Off 10k Rifb Logic Ground Power Ground Load www.irf.com 1 IR3316S Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are referenced to Vcc lead. (Tambient=25C unless otherwise specified). Symbol Parameter Min. -16 -16 -16 -0.3 Max. 37 26 33 37 2.8 100 2 4 0.5 150 Units V Vcc-Vin Maximum Vcc voltage Vcc-Vin cont. Maximum continuous Vcc voltage Vcc-Vfb Maximum Ifb voltage Vcc-Vout Maximum output voltage Ids cont. Maximum body diode continuous current Rth=60C/W (1) Ids pulsed Maximum body diode pulsed current (1) Pd Maximum power dissipation Rth=60C/W ESD1 Electrostatic discharge voltage (Human body) C=100pF, R=1500 ESD2 Electrostatic discharge voltage (Machine Model) C=200pF,R=0 Tj max. Max. storage & operating temperature junction temperature Min Rfb Minimum on the resistor on Ifb pin Ifb max. Max. Ifb current (1) Limited by junction temperature. Pulsed is also limited by wiring A W kV C k mA -40 0.3 -50 50 Thermal Characteristics Symbol Rth1 Rth2 Parameter Thermal resistance junction to ambient D-Pak Std footprint Thermal resistance junction to case D-Pak Typ. 60 0.7 Max. Units C/W Recommended Operating Conditions These values are given for a quick design. For operation outside these conditions, please consult the application notes. Symbol Iout Parameter Min. Max. 7 3.5 Units A k ms Hz Continuous output current Tambient=85C, Rth=60C/W, Tj=125C Rifb Recommended Ifb resistor (2)(3) Pulse min. Minimum turn-on pulse width Fmax. Maximum operating frequency 2) If Rifb is too low, the device can be damaged. 3) If Rifb is too high, the device may not switch on. 0.5 1 200 www.irf.com 2 IR3316S Protection Characteristics Tj=25C, Rifb=500 to 5k Symbol Vifb-Vin@Isd Tsd OV Isdf Isd_1k Treset Min. pulse WAIT Rds(on) rev. Parameter Over-current shutdown threshold Over temperature threshold Over voltage protection (not latched) Fixed over current shutdown Programmable over current shutdown 1k Time to reset protection Min. pulse width (no WAIT state) WAIT function timer Reverse battery On state resistance Min. 4 Typ. 4.7 165 29 120 40 50 900 1 6.7 Max. 5.6 Units V C V A s ms m Test Conditions See fig. 5 Vifb 400 0.4 4 33 140 50 500 2000 2 10 Static Electrical Characteristics Tj=25C, Vcc=14V (unless otherwise specified) Symbol Vcc op. Icc off Iin, on Vih Vil Vhyst Iout Parameter Operating Voltage range Supply leakage current On state IN positive current High level Input threshold voltage (4) Low level Input threshold voltage (4) Input hysteresis Vih-Vil Drain to source leakage current Min. 6 Typ. Max. 26 5 6 6.2 5.8 1 5 Units V A mA V A Test Conditions Vin=Vcc, Vcc-Vout=14V, Vcc-Vifb=14V Vcc-Vin=14V 1.5 3 5.4 4.9 0.4 1.2 1.5 4 0.2 Vin=Vcc, Vcc-Vifb=0V, Vcc-Vout=14V Rds(on) On state resistance (5) Tj=25C 4 5.5 7 Iout=30A, Vcc-Vin=14V On state resistance (5) Tj=25C 4 6 10 Iout=17A, Vcc-Vin=6V m On state resistance (5) Tj=150C 7 10.5 13.5 Iout=30A, Vcc-Vin=14V Iout=50mA V clamp1 Vcc to Vout clamp voltage 1 36 39 V 40 43 Iout=30A V clamp2 Vcc to Vout clamp voltage 2 (4) Input thresholds are measured directly between the input pin and the tab. Any parasitic resistance in common between the load current path and the input signal path can significantly affect the thresholds. (5) Rdson is measured between the tab and the Out pin, 5mm away from the package. Switching Electrical Characteristics Vcc=14V, Resistive load=0.5, Tj=25C Symbol Tdon Tr1 Tr2 Eon Tdoff Tf Eoff Parameter Turn on delay time to 10% Vcc Rise time to Vcc-Vout=5V Rise time to Vcc-Vout=0.1Vcc Turn on energy Turn off delay time Fall time to Vout=10% of Vcc Turn off energy Min. 30 20 30 Typ. 120 50 80 14 140 100 7 Max. 300 125 200 Units s mJ s mJ Test Conditions See figure 2 30 35 350 250 www.irf.com 3 IR3316S Current Sense Characteristics Symbol Ratio Ratio_TC Offset Trst Parameter I Load/Iifb current ratio I Load/Iifb variation aver temperature Load current diagnostic offset Ifb response time (low signal) Min. 7,500 -5 -0.22 Typ. 8,800 Max. 9,950 +5 +0.2 Units Test Conditions Tj=25C, Rfb=500, Iout=60A Tj=-40C to 150C Iout=2A 90% of the Iout step 0 1 % A s Functional Block Diagram All values are typical VCC Charge Pump Driver On/Off Fast turn-off 43V 38V 43V 3mA + + Reset Set 29V Q 43V Latch Wait timer 1 ms 4.7V timer 400s 80 + Iout > 120A Tj > 165C Min. Pulse + reverse battery protection IN IFB OUT www.irf.com 4 IR3316S Lead Assignments 3- Vcc 12 45 1- In 2- Ifb 3- Vcc (tab) 4- Out 5- Out DPak Vcc-Vin Vih Vil Vhyst IN Iin Ifb 90% Icc Vcc IR3316 Out Vcc-Vout Vclamp1 Vclamp2 Vcc-Vin 10% Tr-in 90% Vcc-5V Vout 10% Ifb Iout Isd Td on Tr1 Tr2 Td off Tf Figure 1 - Voltages and current definitions Figure 2 - Switching time definitions www.irf.com 5 IR3316S Vin T clamp Vcc-Vin Iout Vcc T min. pulse T min. pulse Iout Wait Vout Vcc - V clamp See Application Notes to evaluate power dissipation Figure 3 - Active clamp waveforms Figure 4 - Min. pulse and Wait function Vcc-Vin t < T reset t > T reset Wait t < T reset t > T reset Wait Over-current shutdown Iout Over-temperature shutdown Tj Figure 5 - Protection Timing Diagrams www.irf.com 6 IR3316S All curves are typical characteristics. Operation in hatched areas is not recommended. Tj=25C, Rifb=500ohm, Vcc=14V (unless otherwise specified). 10 6 Icc off, supply leakeage current (A) 8 5 4 3 2 1 0 -50 0 50 100 150 Icc, supply current (mA) 6 4 2 0 0 10 20 30 40 50 Vcc-Vin, supply voltage (V) Figure 6 - Icc (mA) Vs Vcc-Vin (V) Tj, junction temperature (C) Figure 7 - Icc off (A) Vs Tj (C) 200% 6 5 Rds(on), Drain-to-Source On Resistance (Normalized) 150% Vih, Vil and Vifb-Vin@Isd (V) 4 3 2 1 0 Vifb-Vin@Isd VIH VIL 100% 50% -50 0 50 100 150 -50 -25 0 25 50 75 100 125 150 Tj, junction temperature (C) Figure 8 - Normalized Rds(on) (%) Vs Tj (C) Tj, junction temperature (C) Figure 9 - Vih, Vil and Vifb-Vin@Isd (V) Vs Tj (C) www.irf.com 7 IR3316S 18 16 14 12 100 With calibration Spec. Max. Isd, over current shutdown (A) 10 0 20 40 60 80 100 100 1000 10000 Error (+/-A) 10 8 6 4 2 0 I load, load current (A) Figure 10 - Error (+/- A) Vs I load (A) Rifb, feedback resistor () Figure 11 - Ids (A) Vs Rifb () 30 60C/W 35C/W 100 Max. output current (A) 20 10 0 -50 0 50 100 150 Max. output current (A) 10 10 100 1000 Tamb., ambient temperature (C) Figure 12 - Max. Iout (A) Vs Tamb. (C) Inductance (H) Figure 13 - Max. Iout (A) Vs inductance (H) www.irf.com 8 IR3316S 100 Tamb=25C Tamb=100C 100 Zth, transient thermal impedance (C/W) 50C/W free air Ids, output current (A) 10 5C/W 1 10 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 0.1 1.E-4 1.E-3 1.E-2 1.E-1 1.E+0 1.E+1 1.E+2 Protection response time (s) Figure 14 - Ids (A) Vs over temperature protection response time (s) Time (s) Figure 15 - Transient thermal impedance (C/W) Vs time (s) www.irf.com 9 IR3316S Case Outline 5 Lead - D2PAK www.irf.com 10 IR3316S Tape & Reel 5 Lead - D2PAK D2Pak is MSL1 qualified. This product has been designed and qualified for the Automotive [Q100] market. Qualification standards can be found at www.irf.com IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 Data and specifications subject to change without notice. 9/6/2006 www.irf.com 11 |
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