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| www..com Data Sheet No. PD60284 IR3314(S)PbF PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH Features * * * * * * * * Load current feedback Programmable over current shutdown Active clamp ESD protection Input referenced to Vcc Over temperature shutdown Reverse battery protection Lead-Free Product Summary Rds(on) 12 m max. Vcc op. 6 to 32V Current Ratio 5300 Prog. Ishutdown 6 to 58A Vclamp 40V Packages Description The IR3314(S)PbF 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. TO-220 IR3314PBF DPak Pin 4 and 5 fused IR3314SPbF Typical Connection Vcc IN Ifb IR3314 Battery Out Current feeback Input On Off 10k Rifb Logic Ground Power Ground Load www.irf.com 1 www..com IR3314(S)PbF 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 32 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 Rth3 Parameter Thermal resistance junction to ambient D-Pak Std footprint Thermal resistance junction to case D-Pak Thermal resistance junction to case TO-220 Typ. 60 1.2 1.2 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. 18 5 3.5 Units A k ms Hz Continuous output current Tambient=85C, Rth=5C/W, Tj=125C 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 www..com IR3314(S)PbF Protection Characteristics Tj=25C, Rifb=500 to 3.5k 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 35 72 24 50 400 1 10 Max. 5.6 Units V C V A s ms m Test Conditions See fig. 5 Vifb 200 0.4 6 39 90 31 500 1200 2 18 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. 32 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 5 9 12 Iout=20A, Vcc-Vin=14V On state resistance (5) Tj=25C 5 9.5 17 Iout=15A, Vcc-Vin=6V m On state resistance (5) Tj=150C 10 17 23 Iout=20A, Vcc-Vin=14V Iout=50mA V clamp1 Vcc to Vout clamp voltage 1 36 39 V 40 43 Iout=20A 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. 5 2 7 Typ. 21 8 27 4.5 55 20 2 Max. 55 20 70 Units s mJ s mJ Test Conditions See figure 2 13 5 140 55 www.irf.com 3 www..com IR3314(S)PbF 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. 4,500 -5 -0.18 Typ. 5,300 Max. 6,300 +5 +0.15 Units Test Conditions Tj=25C, Rfb=500, Iout=40A 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 35V Q 43V Latch Wait timer 1 ms 4.7V timer 400s 80 + Iout > 72A Tj > 165C Min. Pulse + reverse battery protection IN IFB OUT www.irf.com 4 www..com IR3314(S)PbF Lead Assignments 3- Vcc 3- Vcc 1- In 2- Ifb 3- Vcc (tab) 4- Out 5- Out 12345 12 45 DPak TO220 Vcc-Vin Vih Vil Vhyst IN Iin Ifb 90% Icc Vcc IR3314 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 www..com IR3314(S)PbF 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 www..com IR3314(S)PbF All curves are typical characteristics. Operation in hatched areas is not recommended. Tj=25C, Rifb=500ohm, Vcc=14V (unless otherwise specified). 1 0 6 Icc off, supply leakage current (A) 0 1 0 20 30 40 50 8 5 4 3 2 1 0 -50 0 50 100 150 Icc, supply current (mA) 6 4 2 0 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 www..com IR3314(S)PbF 1 0 100 With calibration 6 Isd, over current shutdown (A) 8 Spec. Max. Error (+/-A) 10 4 2 0 0 20 40 60 1 100 1000 10000 I load, load current (A) Figure 10 - Error (+/- A) Vs I load (A) Rifb, feedback resistor () Figure 11 - Ids (A) Vs Rifb () 20 60C/W 35C/W 100 Max. output current (A) 10 Max. output current (A) -50 0 50 100 150 10 0 1 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 www..com IR3314(S)PbF 100 Tamb=25C Tamb=100C 100 Zth, transient thermal impedance (C/W) 50C/W free air Ids, output current (A) 10 5C/W 10 1 1 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 www..com IR3314(S)PbF Case Outline 5 Leads - TO220 - Automotive Q100 PbF qualified www.irf.com 10 www..com IR3314(S)PbF Case Outline - D2PAK 5 leads - Automotive Q100 PbF MSL1 qualified www.irf.com 11 www..com IR3314(S)PbF 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 12 |
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