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| Previous Datasheet Index Next Data Sheet Data Sheet No. PD-6.018D IR2121 CURRENT LIMITING LOW SIDE DRIVER Features n Gate drive supply range from 12 to 18V n Undervoltage lockout n Current detection and limiting loop to limit driven power transistor current n Error lead indicates fault conditions and programs shutdown time n Output in phase with input Product Summary VOFFSET IO+/VOUT VCSth ton/off (typ.) 5V max. 1A / 2A 12 - 18V 230 mV 150 & 150 ns Description The IR2121 is a high speed power MOSFET and IGBT driver with over-current limiting protection circuitry. Latch immune CMOS technology enables ruggedized monolithic construction. Logic inputs are compatible with standard CMOS or LSTTL outputs. The output driver features a high pulse current buffer stage designed for minimum cross-conduction. The protection circuitry detects over-current in the driven power transistor and limits the gate drive voltage. Cycle-by-cycle shutdown is programmed by an external capacitor which directly controls the time interval between detection of the over-current limiting condition and latched shutdown. The output can be used to drive an N-channel power MOSFET or IGBT in the low side configuration. Package Typical Connection TO LOAD VCC IN V CC IN ERR COM V CC OUT CS VS To Order CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-91 Previous Datasheet Index Next Data Sheet IR2121 Absolute Maximum Ratings Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM. The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still air conditions. Symbol VCC VS VO VIN VERR VCS PD RJA TJ TS TL Parameter Definition Fixed Supply Voltage Gate Drive Return Voltage Output Voltage Logic Input Voltage Error Signal Voltage Current Sense Voltage Package Power Dissipation @ TA +25C Thermal Resistance, Junction to Ambient Junction Temperature Storage Temperature Lead Temperature (Soldering, 10 seconds) Value Min. -0.3 VCC - 25 VS - 0.3 -0.3 -0.3 VS - 0.3 -- -- -- -55 -- Max. 25 VCC + 0.3 VCC + 0.3 VCC + 0.3 VCC + 0.3 VCC + 0.3 1.0 125 150 150 300 Units V W C/W C Recommended Operating Conditions The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used within the recommended conditions. The VS offset rating is tested with all supplies biased at 15V differential. Symbol VCC VS VO VIN VERR VCS TA Parameter Definition Fixed Supply Voltage Gate Drive Return Voltage Output Voltage Logic Input Voltage Error Signal Voltage Current Sense Signal Voltage Ambient Temperature Value Min. VS + 10 -5 VS 0 0 VS -40 Max. VS + 20 5 VCC VCC VCC VCC 125 Units V C B-92 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL To Order Previous Datasheet Index Next Data Sheet IR2121 Dynamic Electrical Characteristics VBIAS (VCC) = 15V, CL = 3300 pF and TA = 25C unless otherwise specified. The dynamic electrical characteristics are defined in Figures 2 through 5. Symbol ton toff t sd tr tf t cs terr Parameter Definition Turn-On Propagation Delay Turn-Off Propagation Delay ERR Shutdown Propagation Delay Turn-On Rise Time Turn-Off Fall Time CS Shutdown Propagation Delay CS to ERR Pull-Up Propagation Delay Value Figure Min. Typ. Max. Units Test Conditions 7 8 9 10 11 12 13 -- -- -- -- -- -- -- 150 150 1.7 43 26 0.7 9.0 200 190 2.2 60 35 1.2 12 ns s ns s CERR = 270 pF Static Electrical Characteristics VBIAS (VCC) = 15V and TA = 25C unless otherwise specified. The V IN, VTH and IIN parameters are referenced to COM. The VO and IO parameters are referenced to VS . Symbol VIH VIL VCSTH+ VCSTHVOH VOL IQCC IIN+ IINICS+ I CSVCCUV+ VCCUVIERR IERR+ IERRI O+ IO- Parameter Definition Logic "1" Input Voltage Logic "0" Input Voltage CS Input Positive Going Threshold CS Input Negative Going Threshold High Level Output Voltage, VBIAS - VO Low Level Output Voltage, VO Quiescent VCC Supply Current Logic "1" Input Bias Current Logic "0" Input Bias Current "High" CS Bias Current "Low" CS Bias Current VCC Supply Undervoltage Positive Going Threshold VCC Supply Undervoltage Negative Going Threshold ERR Timing Charge Current ERR Pull-Up Current ERR Pull-Down Current Output High Short Circuit Pulsed Current Output Low Short Circuit Pulsed Current Value Figure Min. Typ. Max. Units Test Conditions 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2.2 -- 150 130 -- -- -- -- -- -- -- 8.3 7.3 65 8.0 16 1.0 2.0 -- -- 230 200 -- -- 1.1 4.5 -- 4.5 -- 8.9 8.0 100 15 30 1.6 3.3 -- 0.8 320 260 100 100 2.2 10 1.0 10 1.0 9.6 8.7 130 -- mA -- -- -- A V VCC = 12V to 18V VCC = 12V to 18V VCC = 12V to 18V VCC = 12V to 18V I O = 0A I O = 0A VIN = VCS = 0V or 5V VIN = 5V VIN = 0V VCS = 3V or 5V VCS = 0V mV mA A V A VIN = 5V, VCS = 3V ERR < VERR+ VIN = 5V, VCS = 3V ERR > VERR+ VIN = 0V VO = 0V, VIN = 5V PW 10 s VO = 15V, VIN = 0V PW 10 s To Order CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-93 Previous Datasheet Index Next Data Sheet IR2121 Functional Block Diagram V CC UV DETECT BUFFER VCC OUT IN PRE DRIVER 1.8V 0.23V ERROR TIMING + AMPLIFER 500 ns BLANK COMPARATOR CS VS ERR 1.8V COM Lead Definitions Lead Symbol Description VCC IN ERR COM OUT VS CS Logic and gate drive supply Logic input for gate driver output (OUT), in phase with OUT Serves multiple functions; status reporting, linear mode timing and cycle by cycle logic shutdown Logic ground Gate drive output Gate drive supply return Current sense input to current sense comparator Lead Assignments 8 Lead DIP IR2121 Part Number B-94 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL To Order Previous Datasheet Index Next Data Sheet IR2121 Device Information Process & Design Rule Transistor Count Die Size Die Outline HVDCMOS 4.0 m 410 104 X 111 X 26 (mil) Thickness of Gate Oxide Connections First Layer Second Layer Contact Hole Dimension Insulation Layer Passivation (1) Passivation (2) Method of Saw Method of Die Bond Wire Bond Leadframe Material Width Spacing Thickness Material Width Spacing Thickness Material Thickness Material Thickness Material Thickness Package Remarks: * Patent Pending Method Material Material Die Area Lead Plating Types Materials 800A Poly Silicon 4 m 6 m 5000A Al - Si (Si: 1.0% 0.1%) 6 m 9 m 20,000A 8 m X 8 m PSG (SiO2) 1.5 m PSG (SiO2) 1.5 m Proprietary* Proprietary* Full Cut Ablebond 84 - 1 Thermo Sonic Au (1.0 mil / 1.3 mil) Cu Ag Pb : Sn (37 : 63) 8 Lead PDIP EME6300 / MP150 / MP190 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-95 To Order Previous Datasheet Index Next Data Sheet IR2121 IN VCC CS OUT ERR 4 OUT IR2121 Figure 1. Input/Output Timing Diagram Figure 2. Switching Time Test Circuit 50% 50% 50% IN ton tr 90% t off 90% tf CS tcs OUT 90% OUT 10% 10% Figure 3. Switching Time Waveform Definitions Figure 4. ERR Shutdown Waveform Definitions 50% CS 50% t err 50% tcs CS HO ERR 90% dt 1.8V dt = C x Figure 5. CS Shutdown Waveform Definitions dV 1.8V = Cx IERR 100 uA Figure 6. CS to ERR Waveform Definitions B-96 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL To Order Previous Datasheet Index Next Data Sheet IR2121 500 500 400 Turn-On Delay Time (ns) Turn-On Time (ns) 400 300 300 Max. 200 Max. Typ. 200 Typ. 100 100 0 -50 -25 0 25 50 75 100 125 Temperature (C) 0 10 12 14 16 18 20 VBIAS Supply Voltage (V) Figure 7A. Turn-On Time vs. Temperature Figure 7B. Turn-On Time vs. Voltage 500 500 400 Turn-Off Delay Time (ns) Turn-Off Time (ns) 400 300 300 Max. 200 Max. Typ. 200 Typ. 100 100 0 -50 -25 0 25 50 75 100 125 Temperature (C) 0 10 12 14 16 18 20 VBIAS Supply Voltage (V) Figure 8A. Turn-Off Time vs. Temperature Figure 8B. Turn-Off Time vs. Voltage 5.00 ERR to Output Shutdown Delay Time (s) ERR to Output Shutdown Delay Time (s) 5.00 4.00 4.00 3.00 Max. 3.00 2.00 Typ. 2.00 Max. 1.00 1.00 Typ. 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 V BIAS Supply Voltage (V) Figure 9A. ERR to Output Shutdown vs. Temperature Figure 9B. ERR to Output Shutdown vs. Voltage To Order CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-97 Previous Datasheet Index Next Data Sheet IR2121 100 100 80 Turn-On Rise Time (ns) Turn-On Rise Time (ns) 80 Max. 60 Max. 60 Typ. 40 Typ. 40 20 20 0 -50 -25 0 25 50 75 100 125 Temperature (C) 0 10 12 14 16 18 20 V BIAS Supply Voltage (V) Figure 10A. Turn-On Rise Time vs. Temperature Figure 10B. Turn-On Rise Time vs. Voltage 100 100 80 Turn-Off Fall Time (ns) Turn-Off Fall Time (ns) 80 60 60 Max. 40 Max. Typ. 40 Typ. 20 20 0 -50 -25 0 25 50 75 100 125 Temperature (C) 0 10 12 14 16 18 20 V BIAS Supply Voltage (V) Figure 11A. Turn-Off Fall Time vs. Temperature Figure 11B. Turn-Off Fall Time vs. Voltage 2.00 CS to Output Shutdown Delay Time (s) CS to Output Shutdown Delay Time (s) 2.00 1.60 1.60 Max. 1.20 Max. 1.20 Typ. 0.80 Typ. 0.80 0.40 0.40 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VBIAS Supply Voltage (V) Figure 12A. CS to Output Shutdown vs. Temperature Figure 12B. CS to Output Shutdown vs. Voltage B-98 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL To Order Previous Datasheet Index Next Data Sheet IR2121 20.0 20.0 CS to ERR Pull-Up Delay Time (s) 16.0 Max. CS to ERR Pull-Up Delay Time (s) 16.0 12.0 Typ. 12.0 Max. T yp. 8.0 8.0 4.0 4.0 0.0 -50 -25 0 25 50 75 100 125 Temperature (C) 0.0 10 12 14 16 18 20 VBIAS Supply Voltage (V) Figure 13A. CS to ERR Pull-Up vs. Temperature Figure 13B. CS to ERR Pull-Up vs. Voltage 5.00 5.00 4.00 Logic "1" Input Threshold (V) Logic "1" Input Threshold (V) 4.00 3.00 Min. 3.00 Min. 2.00 2.00 1.00 1.00 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VCC Logic Supply Voltage (V) Figure 14A. Logic "1" Input Threshold vs. Temperature Figure 14B. Logic "1" Input Threshold vs. Voltage 5.00 5.00 4.00 Logic "0" Input Threshold (V) Logic "0" Input Threshold (V) Max. 4.00 3.00 3.00 2.00 2.00 1.00 1.00 Max. 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VCC Logic Supply Voltage (V) Figure 15A. Logic "0" Input Threshold vs. Temperature Figure 15B. Logic "0" Input Threshold vs. Voltage To Order CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-99 Previous Datasheet Index Next Data Sheet IR2121 500 500 CS Input Positive Going Threshold (mV) 400 Max. CS Input Positive Going Threshold (mV) 400 Max. 300 Typ. 300 Typ. 200 Min. 200 Min. 100 100 0 -50 -25 0 25 50 75 100 125 Temperature (C) 0 10 12 14 16 18 20 V BS Floating Supply Voltage (V) Figure 16A. CS Input Threshold (+) vs. Temperature Figure 16B. CS Input Threshold (+) vs. Voltage 500 CS Input Negative Going Threshold (mV) CS Input Negative Going Threshold (mV) 500 400 400 300 Max. 300 Max. 200 Typ. 200 Typ. Min. Min. 100 100 0 -50 -25 0 25 50 75 100 125 Temperature (C) 0 10 12 14 16 18 20 V BS Floating Supply Voltage (V) Figure 17A. CS Input Threshold (-) vs. Temperature Figure 17B. CS Input Threshold (-) vs. Voltage 1.00 1.00 0.80 High Level Output Voltage (V) High Level Output Voltage (V) Max. 0.80 0.60 0.60 0.40 0.40 0.20 0.20 Max. 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VBS Floating Supply Voltage (V) Figure 18A. High Level Output vs. Temperature Figure 18B. High Level Output vs. Voltage B-100 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL To Order Previous Datasheet Index Next Data Sheet IR2121 1.00 1.00 0.80 Low Level Output Voltage (V) Low Level Output Voltage (V) Max. 0.80 0.60 0.60 0.40 0.40 0.20 0.20 Max. 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VBS Floating Supply Voltage (V) Figure 19A. Low Level Output vs. Temperature Figure 19B. Low Level Output vs. Voltage 5.00 5.00 4.00 VCC Supply Current (mA) VCC Supply Current (mA) 4.00 3.00 3.00 2.00 Max. 2.00 Max. 1.00 Typ. 1.00 Typ. 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VCC Supply Voltage (V) Figure 20A. VCC Supply Current vs. Temperature Figure 20B. VCC Supply Current vs. Voltage 25 25 Logic "1" Input Bias Current (A) 15 Logic "1" Input Bias Current (A) 20 20 15 Max. 10 Max. 10 5 Typ. 5 Typ. 0 -50 0 -25 0 25 50 75 100 125 10 12 14 16 18 20 Temperature (C) V CC Logic Supply Voltage (V) Figure 21A. Logic "1" Input Current vs. Temperature Figure 21B. Logic "1" Input Current vs. Voltage To Order CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-101 Previous Datasheet Index Next Data Sheet IR2121 5.00 5.00 4.00 4.00 Logic "0" Input Bias Current (A) 3.00 Logic "0" Input Bias Current (A) 3.00 2.00 2.00 1.00 Max. 1.00 Max. 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VCC Logic Supply Voltage (V) Figure 22A. Logic "0" Input Current vs. Temperature Figure 22B. Logic "0" Input Current vs. Voltage 25.0 25.0 20.0 "High" CS Bias Current (A) "High" CS Bias Current (A) 20.0 15.0 15.0 10.0 Max. Typ. 10.0 Max. Typ. 5.0 5.0 0.0 -50 -25 0 25 50 75 100 125 Temperature (C) 0.0 10 12 14 16 18 20 VBS Floating Supply Voltage (V) Figure 23A. "High" CS Bias Current vs. Temperature Figure 23B. "High" CS Bias Current vs. Voltage 5.00 5.00 4.00 "Low" CS Bias Current (A) "Low" CS Bias Current (A) Max. 4.00 3.00 3.00 2.00 2.00 Max. 1.00 1.00 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VBS Floating Supply Voltage (V) Figure 24A. "Low" CS Bias Current vs. Temperature Figure 24B. "Low" CS Bias Current vs. Voltage B-102 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL To Order Previous Datasheet Index Next Data Sheet IR2121 11.0 11.0 10.0 Max. VCC Undervoltage Lockout + (V) 9.0 Typ. VCC Undervoltage Lockout - (V) 10.0 9.0 Max. Min. 8.0 8.0 Typ. Min. 7.0 7.0 6.0 -50 -25 0 25 50 75 100 125 Temperature (C) 6.0 -50 -25 0 25 50 75 100 125 Temperature (C) Figure 25. VCC Undervoltage (+) vs. Temperature Figure 26. VCC Undervoltage (-) vs. Temperature 250 250 ERR Timing Charge Current (A) 150 Max. ERR Timing Charge Current (A) 200 200 150 Max. 100 Typ. Typ. 100 Min. Min. 50 50 0 -50 -25 0 25 50 75 100 125 Temperature (C) 0 10 12 14 16 18 20 V CC Logic Supply Voltage (V) Figure 27A. ERR Timing Charge Current vs. Temperature Figure 27B. ERR Timing Charge Current vs. Voltage 25.0 25.0 20.0 ERR Pull-Up Current (A) ERR Pull-Up Current (A) Typ. 20.0 15.0 15.0 Typ. 10.0 Min. 10.0 Min. 5.0 5.0 0.0 -50 -25 0 25 50 75 100 125 Temperature (C) 0.0 10 12 14 16 18 20 VCC Logic Supply Voltage (V) Figure 28A. ERR Pull-Up Current vs. Temperature Figure 28B. ERR Pull-Up Current vs. Voltage To Order CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-103 Previous Datasheet Index Next Data Sheet IR2121 50 50 40 ERR Pull-Down Current (A) Typ. 40 ERR Pull-Down Current (A) 30 30 Typ. 20 Min. 20 Max. 10 10 0 -50 0 -25 0 25 50 75 100 125 10 12 14 16 18 20 Temperature (C) V CC Logic Supply Voltage (V) Figure 29A. ERR Pull-Down Current vs.Temperature Figure 29B. ERR Pull-Down Current vs. Voltage 2.50 2.50 2.00 Output Source Current (A) Typ. 2.00 Output Source Current (A) 1.50 Min. 1.50 1.00 1.00 Typ. Min. 0.50 0.50 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VBS Floating Supply Voltage (V) Figure 30A. Output Source Current vs.Temperature Figure 30B. Output Source Current vs. Voltage 5.00 5.00 4.00 Output Sink Current (A) Typ. 4.00 Output Sink Current (A) 3.00 Min. 3.00 Typ. 2.00 2.00 Min. 1.00 1.00 0.00 -50 -25 0 25 50 75 100 125 Temperature (C) 0.00 10 12 14 16 18 20 VBS Floating Supply Voltage (V) Figure 31A. Output Sink Current vs.Temperature Figure 31B. Output Sink Current vs. Voltage B-104 CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL To Order Previous Datasheet Index Next Data Sheet IR2121 500 VCC = 15V 500 VCC = 15V 400 Turn-On Time (ns) Turn-Off Time (ns) 400 300 300 200 Typ. 200 Typ. 100 100 0 5 7.5 10 Input Voltage (V) 12.5 15 0 5 7.5 10 Input Voltage (V) 12.5 15 Figure 32A. Turn-On Time vs. Input Temperature Figure 32B. Turn-Off Time vs. Input Voltage 0.00 -3.00 VS Offset Supply Voltage (V) Typ. Typ. -6.00 -9.00 -12.00 -15.00 10 12 14 16 18 20 VBS Floating Supply Voltage (V) Figure 33. Maximum VS Negative Offset vs. Supply Voltage To Order CONTROL INTEGRATED CIRCUIT DESIGNERS MANUAL B-105 |
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