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| PD - 94269 IPS511E FULLY PROTECTED HIGH SIDE POWER MOSFET SWITCH Features * * * * * * * Over temperature protection (with auto-restart) Short-circuit protection (current limit ) Active clamp E.S.D protection Status feedback Open load detection Logic ground isolated from power ground Product Summary Rds(on) V clamp I Limit V open load 150m (max) 50V 5A 3V Description The IPS511E is fully protected five terminal high side switch with built in short circuit, over-temperature, ESD protection, inductive load capability and diagnostic feedback. The output current is controlled when it reaches Ilim value. The current limitation is activated until the thermal protection acts. The over-temperature protection turns off the high side switch if the junction temperature exceeds Tshutdown. It will automatically restart after the junction has cooled 7oC below Tshutdown. A diagnostic pin is provided for status feedback of short-circuit, over-temperature and open load detection. The double level shifter circuitry allows large offsets between the logic ground and the load ground. Truth Table Op. Conditions Normal Normal Open load Open load Over current Over current Over-temperature Over-temperature In Out H H L L H H L H H L (limiting) L L H L (cycling) L L Dg H L H H L L L L Typical Connection + VCC + 5v 15K Status feedback Rdg Rin Output pull-up resistor Packages Vcc Dg Logic control Out In Gnd Logic signal Load Logic Gnd Load Gnd LCC 18 1 6/18/01 www.irf.com IPS511E Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are referenced to GROUND lead. (Tj = 25oC unless otherwise specified). Symbol Parameter Vout Voffset Vin Vcc max Iin, max. Vdg Idg, max Isd cont. Min. Max. Vcc+0.3 Vcc+0.3 5.5 50 10 5.5 10 2.2 10 4 0.5 20 +150 300 Units Test Conditions Maximum output voltage Vcc-50 Maximum logic ground to load ground offset Vcc-50 Maximum Input voltage Maximum Vcc voltage Maximum IN current Maximum diagnostic output voltage Maximum diagnostic output current Diode max. permanent current (1) -0.3 -- -5 -0.3 -1 -- -- -- -- -- -40 -- V mA V mA A C=100pF, R=1500, kV W o Isd pulsed Diode max. pulsed current (1) ESD1 Electrostatic discharge voltage (Human Body) ESD2 Pd T j max. T lead Electrostatic discharge voltage (Machine Model) Maximum power dissipation(1) Max. storage & operating junction temp. Lead temperature (soldering 10 seconds) C=200pF, R=0, L=10H C Thermal Characteristics Symbol Parameter Rth 1 Rth 2 Thermal resistance junction to case Thermal resistance junction to ambient Min. -- -- Typ. 6.25 90 Max. Units Test Conditions -- -- o C/W (1) Limited by junction temperature (pulsed current limited also by internal wiring) 2 www.irf.com IPS511E Recommended Operating Conditions These values are given for a quick design. For operation outside these conditions, please consult the application notes. Symbol Parameter Vcc VIH VIL I out Continuous Vcc voltage High level input voltage Low level input voltage Continuous output current (TAmbient = 85oC, Tj = 125oC, Rth < 60oC/W) (TAmbient = 85oC, Tj = 125oC, Rth = 80oC/W) Recommended resistor in series with IN pin Recommended resistor in series with DG pin Min. 5.5 4 -0.3 -- -- 4 10 Max. 35 5.5 0.9 1.7 1.5 6 20 Units V A k Rin Rdg Static Electrical Characteristics (Tj = 25oC, Vcc = 14V unless otherwise specified.) Symbol Parameter R ds(on) R ds(on) R ds(on) Vcc oper. V clamp 1 V clamp 2 Vf Icc off Icc on Icc ac V dgl I oh I ol Idg leakage Min. -- -- -- 5.5 50 -- -- -- -- -- -- -- 0 -- -- 1 -- 0.1 Typ. 125 125 215 -- 56 58 0.9 16 0.7 20 0.15 60 -- -- 2.3 1.95 70 0.25 Max. Units Test Conditions 150 150 -- 35 -- 65 1.2 50 2 -- 0.4 110 25 10 3 -- 200 0.5 m Vin = 5V, Iout = 2.5A Tj = 25oC Vin = 5V, Iout = 1A Vcc = 6V Vin = 5V, Iout = 2.5A Tj = 150oC Id = 10mA (see Fig.1 & 2) Id = Isd (see Fig.1 & 2) Id = 2.5A, Vin = 0V Vin = 0V, Vout = 0V Vin = 5V Vin = 5V Idg = 1.6 mA Vout = 6V Vout = 0V Vdg = 5.5V V A V Vin = 5V ON state resistance ON state resistance ON state resistance Operating voltage range Vcc to OUT clamp voltage 1 Vcc to OUT clamp voltage 2 Body diode forward voltage Supply current when OFF Supply current when ON Ripple current when ON (AC RMS) Low level diagnostic output voltage Output leakage current Output leakage current Diagnostic output leakage current IN high threshold voltage IN low threshold voltage On state IN positive current Input hysteresis V A mA A V A V ih V il Iin, on In hyst. www.irf.com 3 IPS511E Switching Electrical Characteristics Vcc = 14V, Resistive Load = 5.6, Tj = 25oC, (unless otherwise specified). Symbol Parameter Tdon Turn-on delay time Tr1 Rise time to Vout = Vcc - 5V Tr2 Rise time Vcc - 5V to Vout = 90% of Vcc dV/dt (on) Turn ON dV/dt Eon Turn ON energy T doff Turn-off delay time Tf Fall time to Vout = 10% of Vcc dV/dt (off) Turn OFF dV/dt Eoff Turn OFF energy Tdiag Vout to Vdiag propagation delay Min. -- -- -- -- -- -- -- -- -- -- Typ. Max. Units Test Conditions 7 10 45 1.3 400 15 10 2 80 5 50 50 100 4 -- 50 50 6 -- 15 s See figure 3 V/s J s V/s J s See figure 4 See figure 6 Protection Characteristics Symbol Parameter I lim Internal current limit T sd+ Over-temp. positive going threshold T sdOver-temp. negative going threshold V sc Short-circuit detection voltage (3) Vopen load Open load detection threshold (3) Referenced to Vcc Min. 3 -- -- 2 2 Typ. 5 165 158 3 3 Max. Units Test Conditions 7 -- -- 4 4 A C o C V V o Vout = 0V See fig. 2 See fig. 2 See fig. 2 Pad Assignments NC NC NC NC NC VCC NC VCC VCC GND NC IN DG NC SOURCE NC NC SOURCE 4 www.irf.com IPS511E Functional Block Diagram All values are typical VCC 50V Over temperature 165C 158C Tj 62 V Charge pump 2.7 V IN 7V 200 K Level 2.2 V shift driver - DG 7V 20 + Open load 3V Current limit + 5A + Short-circuit - 3V GND VOUT T clamp Vin Vin 5V 0V Iout Ilim. limiting T shutdown cycling Iout ( + Vcc ) Out 0V V clamp T Tsd+ Tsd- ) (160 ( see Appl . Notes to evaluate power dissipation ) Figure 1 - Active clamp waveforms Figure 2 - Protection timing diagram www.irf.com 5 IPS511E Vin Vcc 90% Vcc - 5V Vin dV/dt on Vout 10% Td on 90% Tr 1 dV/dt off Tr 2 E1(t) Vout 10% Iout2 E2 (t) Inductive load Iout1 Eon1 Resistive load Td off Tf Eon2 Figure 3 - Switching times definition (turn-on) Turn on energy with a resistive or an inductive load Figure 4 - Switching times definition (turn-off) V in Dg Vcc IN Out Gnd + V cc V c c -V sc Vin Vout L 14 V - V o ut Vol R V d iag Iout D ia g o n b la nk in g D ia g o ff b la n k in g T d ia g 5v 0v Rem : V load is negative during demagnetization Figure 5 - Active clamp test circuit Figure 6 - Diagnostic delay definitions 6 www.irf.com IPS511E 150 200% 100 150% 50 100% 0 0 5 10 15 20 25 30 35 50% -5 0 0 50 100 150 Figure 7 - Rds(on) (m) Vs Vcc (V) Figure 8 - Normalized Rds(on) (%) Vs Tj (oC) 150 10 100 1 50 0.1 0 0 1 2 3 4 5 Figure 9 - Rds(on) (m) Vs Iout (A) Figure 10 - Max. Iout (A) Vs Load Inductance (uH) www.irf.com 7 IPS511E 5 Rthja= 20C/W Rthja= 10C/W 5 4 Rthja= 40C/W 4 1inch footprint Rthja= 35C/W 3 Free air 3 2 2 Std. footprint Rthja= 60C/W 1 1 0 25 50 75 100 125 150 0 25 50 75 100 125 150 Figure 11a - Max load current (A) Vs Tamb (oC) Figure 11b - Max load current (A) Vs Tamb (oC) 100 6 5 10 4 1 3 2 0 .1 1 0 .0 1 0 -50 0 50 100 150 Figure 12 - Transient Thermal Impedance (oC/W) Vs Time (S) Figure 13 - Ilim (A) Vs Tj (oC) 8 www.irf.com IPS511E 600 Resistive load 10000 1000 Eon 400 Eoff 100 I=Imax vs Induct.(see fig.10) I=1.5A 10 200 1 0 0 1 2 3 1E+01 1E+02 1E+03 1E+04 1E+05 Figure 14 - Eon, Eoff (J) (A) Vs Iout (A) Figure 15 - Eon (J) Vs Load Inductance (H) (see Fig. 3) 150 125 Diag on blanking 100 75 50 25 Diag off blanking 0 0 1 2 3 1.00E-03 1.00E-04 1.00E-05 1.00E-06 0 5 10 15 20 25 30 35 Figure 16 - Diag Blanking time (S) Vs Iout (A) (resistive load - see Fig. 6) Figure 17 - Icc (mA) Vs Vcc (V) www.irf.com 1E+06 0.1 9 IPS511E 150 125 100 75 50 25 0 -50 -25 0 25 50 75 100 125 150 Figure 18 - Iin @ Vin = 5V (A) Vs Tj (oC) Case Outline LCC-18 IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7903 Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 06/01 10 www.irf.com |
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