IR1110 International Rectifier Corp., IR1110 Datasheet

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... Comprehensive line status fault output including 1/3 phase loss and high or low line fault provides versatile line diagnostic capa- bility to the system. The IR1110 is based on advanced low power design so it can utilize the SCR snubber derived power supply. ...

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... IR1110 Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage param- eters are absolute voltages referenced to AGND and DGND, all currents are defined positive into any lead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. ...

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... Phase U/V/W SCR driver filter resistor www.irf.com ADVANCE INFORMATION Typ. Tolerance Units 2.2M 5% 6.8M 5% 332k 1% 1.0M 1% 15k 56k 5% 3 VACrmsmax .5W 9.09k 1% 9.09k 1% 845k 1% 357k 1% 78.7k 1% 0.82k X 1% VACrmsmax 10k 33.2k 1% 6.2k 5% 6. 470 5% IR1110 Comments k Note 1,2 Note 3 Note 4 .25W . 3 ...

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... IR1110 Recommended Operating Conditions cont. All capacitors are rated 6.3V unless otherwise specified. All resistors are rated 1/16W unless otherwise specified. The typical connection diagram is shown in figure 3. For proper operation the device should be used with the recommended componens specified below. Symbol Definition ...

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... V —- DD 0.4 4.1 4 —- 4.5 —- 0.1 —- 4.0 —- 400 —- 5 2.2 2.3 2.0 2.1 —- .5 —- .5 IR1110 5.6 Note 3 V -5.6 Note 3 6.0 Note 4 mA -5.0 Note 4 4.0 5.0 Note 1 -2.0 V —- 4.5 Peak voltage of Vin = 4.0V 4.5 —- —- 1PHCAP=VSS —- 1PHCAP=GND A —- 3PHCAP=VSS —- 3PHCAP=GND .4 Output sinking current = 3.0mA V V ...

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... IR1110 Notes for DC Electrical Characteristics Note 1) VBREF=5.0V will assure full SCR firing on to produce the maximum amount of DC bus voltage and faster conver- gence to the maximum DC bus voltage. Although VBREF=4.0V corresponds to the maximum voltage, it will take longer time to converge to the maximum DC bus voltage. ...

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... In this condition 15 Min. Typ. Max. Units Test Conditions 80 161 322 47 35 —- —- — —- —- 1.5 15 —- IR1110 = .01 F 3PH is .001 F. rise time must DD . UVLO 120 140 =475K R ,R =453K POS1 NEG1 230 276 V ...

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... IR1110 System Operating Characteristics and Specifications All peripheral component values are those listed in the recommended operating condition unless otherwise specified First SCR firing angle at ramp-up 1FIRE RLIM Rate of advance of firing angle from last max firing FIRE angle during ramp-up Notes for System Operating Characteristics Note 6) Step change of V may result in excessive bus capacitor charging current ...

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... LNLED If line voltage exceeds the specified level on LNSET voltage, then LNLED = low. Otherwise 1PHSEL= VSS LNLED = high IR1110 External setting LNLSSL = VDD 1PHEN = VDD or VSS 1PHSEL = VDD LNLSSL = VSS ...

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... IR1110 Functional Block Diagram 3 LINE Line Voltage Processing VOLTAGE High/Low Line Fault + Ramp Clamp Amp - ENABLE Vbus Dip VBUS Detector - VBUS + Error Amp Firing Angle, Vin < 0 > 10 ADVANCE INFORMATION 3 Firing COMP voltage reference Line Sync 3 3 & Timing wave ...

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... Non Square VDD VSS VBUS REF Figure 3 IR1110 VDD VINTDISC2 3 2 DVSS 3 1 ...

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... IR1110 Lead Definitions Symbol Pin # 44 DVDD DGND 43 DVSS 31 AVDD 17 AGND 25,26,43 AVSS 4,31,51 UIN/VIN/WIN 1,2,3 VBAMPP 5 VBAMPN 6 VBUSO 7 8 VBREF DCREG2 9 DCREG1 11 DCREGC 10 1PHSEL 12 1PHEN 13 LNLSSL 14 1PHCAP 15 3PHCAP 16 VRAMP 18 RAMPERR 19 CRAMP 20 RRAMP 21 RBIAS 22 VPKLL 23 UVLOCAP 24 BDIP1 29 BDIP2 27 BDIPHLD 30 BDIPCAP 28 VPKDISC1 33 VPKDISC2 32 VPK 34 VPKREC 35 WDCAPU/V/W ...

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... Note 2) 1PHEN = VDD for enable, 1PHEN = VSS for disable. See Operating Mode/Fault Output Matrix Chart for the detail. Note 3) LNLSSL = VDD for total line loss only, LNLSSL = VSS for multiplexing total line loss/1 phase loss. See Operating Mode/Fault Output Matrix Chart for the detail. Package Dimensions - 64 Lead MQFP www.irf.com ADVANCE INFORMATION IR1110 01-2023 01 13 ...

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... Overall Functional Diagram A detailed functional diagram of the IR1110 and peripheral components is shown in Figure 4. The IR1110 receives signals from the AC input lines and DC bus voltage, DC+, DC-, via resistor dividers, and delivers line-synchronized pulses SCRU, SCRV, SCRW to external SCR gate driver circuits. The timing of these pulses controls the DC bus voltage. ...

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... Total RAMP |, via R , with V BUSO CLAMP1 from C and forcing V RAMP RAMP . IR1110 PKD with C allows V to track and t are as follows: D1FIRE t D1FIRE (max) degrees For example, with ...

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... IR1110 During transient line voltage outage, the Ramp Clamp is enabled. V the above relationship with V BUSO returns, so that the bus voltage ramps back without significant delay, but also without unaccept- able jump of bus voltage. The choice CLAMP2 of the output voltage, and the initial jump of voltage when the line voltage returns after outage. ...

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... If C2 and R4 are omitted, the peak firing current will be reduced to about .2A. R3 can be W decreased to say restore the peak firing current to .45A; the maximum average supply current will now increase to about 20mA. www.irf.com ADVANCE INFORMATION , which is set by R and R REF SG1 SG2 IR1110 | should be limited if BUSREF . This reference is set to repre- 17 ...

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... IR1110 Voltage Dip Circuit The DC bus voltage will fall if the input line voltage dips or is lost. For short period outage, the bus capacitor voltage may hold up sufficiently that ramp back when the line voltage returns is unnecessary. If the bus voltage falls below a preset level, then the ramp is automatically clamped, in order to avoid an unacceptable jump of bus voltage when the line returns ...

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... Q4 is turned ON, unclamping HOLD . Ramp-back of the bus voltage now occurs. ERR to hold its charge during the voltage dip driven from a current source of approximately 2uA. UVLO UVLO IR1110 is then PKD | are controlled at BUSREF , which is set HOLD HOLD exceeds the internally fixed ...

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... LS1 LS2 PWM Control of V BUSREF V can be controlled by Pulse Width Modulation (PWM). The IR1110 responds only BUSREF to the average value of this waveform; suitable PWM frequency is in the range of one to several kHz. Figure 9 shows an opto-coupler circuit for transmitting an isolated PWM input. Control of the ON/OFF duty cycle of the opto-transistor, from 0 to 100%, controls the ...

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... Note that an auxiliary winding bus derived switching power supply would not by itself serve the IR1110. This is because bus-derived power cannot deliver voltage until after charging of the DC bus capacitor has already commenced, while the IR1110 must be powered before charging of the bus capacitor commences. ...

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... IR1110 RINTU,V UIN VIN Circuit R W WIN ...

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... SCR Timing Comparators R2/( IR1110 Reference = ...

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... IR1110 + NORMAL 3-PHASE OPERATION (a) LOSS OF ONE INPUT PHASE Figure 8, 8(a) Principle of Generation of 1-Phase Loss Pulses 24 ADVANCE INFORMATION 7,8 4 ...

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... ABNORMAL DIP OF LINE VOLTAGE (c) DC BUS SHORT CIRCUIT. FIRING ANGLE 30 ADVANCED Figure 8(b), 8(c) Principle of Generation of 1-Phase Loss Pulses www.irf.com ADVANCE INFORMATION - IR1110 < 0 > ...

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... IR1110 PIN8 Figure 9 Circuit for PWM Control of DC Bus Voltage .15uF 480V AC U 3-Phase V Input Figure 10 Snubber Derived Power Supply 26 ADVANCE INFORMATION HCPL0453 150 1/10W ...

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... < 0 > (PIN24 IR1110 (PIN41 IR1110 (PIN42 IR1110) 27 ...

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... IR1110 (2) Connect PIN10 of IR1110 to GND (4) PIN13 connected to VDD to enable 1-phase shutdown at low bus voltage ...

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... Remove CERR and RERR 3) Connect PIN10 IR1110 to ground 4) Set VBUSREF = -0.8V D1FIRE 29 ...

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... When the missing phase returns, the ramp is unclamped and the bus voltage ramps back to the set value. If 1-Phase Shutdown is disabled, the IR1110 will continue to deliver DC bus voltage when one input phase is lost. A potential problem arises, however, if the bus voltage is being regulated significantly below the maximum value ...

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... For this reason it is recommended that the 1-Phase Shutdown circuit is enabled, (Pin 13 connected to VDD) in designs where the voltage control function of the IR1110 is used . For designs where the voltage control function is not used, operation at full bus voltage, with 1 Phase Shutdown disabled, allows natural transitioning from 3-Phase to 1-Phase operation, and vice versa, without excessive voltage jumps ...

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... IR1110 example, CRAMP could be clamped via an opto-coupler device to limit the short circuit current short circuit occurs during normal operation, the voltage dip comparator resets the ramp, limiting the short circuit current within less than half a cycle. The ramp will then increase again, until the line fuses blow or other action is taken ...