P1/7 HIGH-VOLTAGE MONOLITHIC IC ECN3030F/3031F ECN3030F/3031F is a driver IC for a three-phase bridge inverter which has MOSFETs or IGBTs for the outputs. Especially, it is very suitable for controlling the speed of three-phase DC brushless motors to which converted AC100~115V power supplies are applied. The internal block diagram is shown in Fig. 1. Functions * * * * * * Package Integrated charge pump circuit Integrated 3-phase distributor circuit Integrated PWM circuit Integrated over current protection circuit Integrated rotating direction sense circuit Integrated FG circuit FP-28DJ(JEDEC) Features * Speed control for a 3-phase DC brushless motor is available with an external microprocessor. * Bottom arm circuits can be operated in 20kHz chopping frequency of PWM. D1 VCC RW RV RU C0 CB VCC D2 Hall ICs (15V) HU HV HW + C1 - C2 + - CL C+ Vs VS VB VB Supply (7.5V) PGU Charge Pump CB CLOCK RM FG MonoMulti PGV PGW Edge- Top arm Driver FG Trigger MCR MU 3-phase Distributer CM RWD MV MW VSP + CMP SAW Wave Generator Motor NGV NGW OC detection + CMP - CLOCK Vref Note.1 CR NGU Bottom arm Driver - VTR Filter RS GND RTR Note.1 CTR ECN3030F:Vref=0.50V Rs ECN3031F:Vref=1.23V Fig.1 Block diagram PDE-3030F/31F-0 P2/7 ECN3030F/3031F 1. 2. General (1) Type (2) Application (3) Structure (4) Package ECN3030F, ECN3031F 3-Phase DC Brushless Motor Monolithic IC FP-28DJ(JEDEC) Maximum Allowable Ratings (Ta=25°C) No. Items Symbols 1 Output Device VSM Breakdown Voltage 2 Supply Voltage VCC 3 Input Voltage VIN 4 Operating Junction Temperature Storage Temperature Terminal VS MU,MV,MW VCC VSP,RS,RWD HU,HV,HW Ratings 250 Unit V 18 ~ VB+0.5 V V ~ +125 °C -0.5 Tjop -20 Condition Note 1 °C -40 ~ +150 Note1. Thermal resistance (Rj-a) is approximately 100°C/W. (When ICs are installed on a print board.) The value of this resistance is determined by the result of the trial product. 5 3. Tstg Recommended Operating Conditions No. Items Symbols Terminal 1 Supply Voltage VS VS 2 VCC VCC MIN 10 TYP 141 MAX 185 Unit V 13.5 15 16.5 V Condition Within allowable rating at Tjop PDE-3030F/31F-0 P3/7 ECN3030F/3031F 4. Electrical Characteristics (Ta=25°C) Unless otherwise specified, VCC=15V, VS=141V Suffix T; Top arm B; Bottom arm Suffix *;U,V,W Phase No. Items Symbols Terminal 1 Standby Current IS VS 2 ICC VCC 3 Output Source Current IO+T PG* 4 IO+B NG* 5 Output Sink Current IO-T PG* 6 IO-B NG* 7 High Level Output VOHT C+,PG* Voltage 8 VOHB VCC,NG* 9 Low Level Output Voltage MIN 30 130 130 130 - TYP 2.0 3.0 50 200 200 200 4.5 MAX 4.0 6.0 100 300 300 300 6.0 Unit mA mA mA mA mA mA V Condition VSP<VSAWL HU=L - - 0.2 V Between VCC and NG* Voltage 20V between C+ and PG* 10V between VCC and NG* 10V between PG* and M* 10V between NG* and GND VOLT PG*,M* - - 0.2 V Between PG* and M* Voltage 10 VOLB NG*,GND - - 0.2 V Between NG* and GND Voltage 11 Output Resistance at VTR terminal 12 Amplitude Level of 13 SAW wave 14 Amplitude of SAW wave 15 Reference Voltage for Over Current detection 16 Input Voltage 17 18 Input Current RVTR VTR - 200 400 W IVTR=1mA 4.9 1.7 2.8 5.4 2.1 3.3 6.1 2.5 3.8 V V V Note 2 0.45 1.107 3.5 - 0.5 1.230 - 0.55 1.353 1.5 50 V V V V mA -100 - - mA VSAWH CR VSAWL CR VSAWW CR Vref RS VIH VIL IIH HU,HV,HW RWD VSP IIL HU,HV,HW RWD CB CB FG IO= 0A Between C+ and PG* Voltage Note.5 only for ECN3030F only for ECN3031F VSP=5.0V Note 1 Pull Down Resistance 19 HU,HV,HW,RWD=0V Note 1 Pull Up Resistance V IB=0mA mA delta VB£0.2V W Note 3 IFG=1mA V Note 4 20 VB Output Voltage VB 6.8 7.5 8.2 21 VB Output Current IB 25 22 Output Resistance at RFG 250 400 FG terminal 23 Reference Voltage for Vref2 MCR VB´2/3 VB´2/3 VB´2/3 FG pulse ´0.95 ´1.05 24 Charge Pump Voltage VCP C+,VS 13.0 14.5 V Note1. The pull up resistance and the pull down resistance are typically 200 kW. Note2. Please see Note 2 in item 6 for determining the frequency of SAW wave. Note3. The equivalent circuit at FG terminal is shown in Fig. 2 Note4. Please see Note 3 in item 6 for determining the FG output pulse width. Note5. The amplitude of SAW(VSAWW) is determined by the following equation, VSAWW=VSAWH-VSAWL (V) Note6. The charge pump voltage (VCP) is determined by the voltage Fig. 2 between C+ and VS. At stand-by Note 6 VB FG Equivalent circuit around FG PDE-3030F/31F-0 P4/7 ECN3030F/3031F 5. Function 5.1 Truth Table Input U Phase V Phase W Phase RWD HU HV HW Top Bottom Top Bottom Top Bottom H H L H L H H L L L H H L L L H L L H L H H H L L L L H H L H L H L H L L H L L H L H H H L L L L H H L L H L L H L L H L H H L L L H L L H L H L L H L L L L H L H L H H L L H L L L L L H L L L H H L L L H H L H L L H L L L H L L H H L L L - L L L L L L L L L H H H L L L L L L Note1. Top arm : Output voltage for between PG* and M*. Bottom arm : Output voltage for between NG* and GND. Note2. It is possible to change the rotation direction of the motor by putting a signal into RWD terminal. A method of using is shown in item 5.7. 5.2 Timing Chart ( RWD = H ) HU Input HV HW Output Voltage PGU-M U NGU-GND PGV-M V NGV-GND PGW -M W NGW -GND FG tM PDE-3030F/31F-0 P5/7 ECN3030F/3031F 5.3 PWM Operation The PWM signal is produced by comparing the input voltage at VSP terminal with the voltage from the internal SAW wave. The duty of the PWM signal can be changed linearly by the triangular wave amplitude level, from the minimum point of VSAWL to the maximum point of VSAWH, and when the level is under VSAWL, the duty becomes 0%, and when the level is over VSAWH, the duty becomes 100%. In addition, chopping with the PWM signal is operated in the bottom arm circuit. 5.4 Over Current Limiting Operation This IC detects over current by checking the voltage drop at the external resistance RS. When the input voltage at RS terminal exceeds the internal reference voltage(Vref), this IC turns off the output of the bottom arm circuit. After over current detection, reset operation is done at every period of the PWM signal. 5.5 FG operation One shot pulse is put out at this terminal synchronized with the rising edge of the synthesized signal of the hole signal HU, HV, HW. The pulse width tM is decided by the constant number which is determined by R and C at MCR terminal(See No.6 Standard Application.). One shot pulse is produced in a mono-multi circuit. This circuit has a retrigger feature which keeps the output signal high when a trigger is input during high signal of FG output. FG synthesized wave Triggered pulse Vref2 MCR voltage FG output voltage tM tM tM Usual operation Retriggered operation 5.6 VCC Under Voltage Detection Operation When VCC becomes lower than the determined voltage, all arms operation and the charge pump operation are forced to stop. The detection voltage is typically 11.5V, and it also has a hysterisis of 0.5V. However, there may be a case when the operation is canceled under 2V of VCC. 5.7 Rotating Direction of the Motor The rotating direction of the motor can be changed by inputting “H” or “L” signal to RWD terminal. Please do not change this signal at operation. This may cause short through of the output Device. However, it is OK if the VSP input voltage is below VSAWL(1.7V typ.) before RWD input voltage change so that the short through is avoided. *;U/V/W NG*, PG*-M*, CL (V) recover operation 0 hysterisis VCC (V) Fig 3. Protection operation for VCC under voltage PDE-3030F/31F-0 P6/7 ECN3030F/3031F 6. Standard Application 6.1 External Parts Component Recommended Value C0 More than 0.22 mF Usage Remark for smoothing Internal stress voltage is VB Power Supply(VB). C1,C2 for charge pump stress voltage is VCC 1.0 mF ± 20% D1,D2 Hitachi DFG1C4(glass mold) for charge pump 400V/1.0A Hitachi DFM1F4(resin mold) trr£100ns or equivalent parts Rs Note 1 for current limiting CTR for PWM Note 2 1800 pF ± 5% RTR 22 kW ± 5% RU,RV,RW 5.6 kW ± 5% pull up resistance CM More than 1000pF for Output Pulse width at Note 3 RM FG terminal More than 10 kW Note1. The start up current is limited by the following equation. IO = Vref / Rs (A) Note2. The PWM frequency is approximately determined by the following equation. At the recommended Value of CR, the error factor of IC is about 10%. fPWM = -1 / (2C´R´Ln(1-3.5/5.5)) ; Ln is natural logarithm = 0.494 / (C´R) (Hz) Note3. The FG output pulse width is determined approximately by the following equation. tM³10ms should be necessary. tM = -(CM´RM´Ln(1-VB´2/3/VB)) = 1.1´CM´RM (s) D1 VCC RW RV RU C0 CB VCC D2 Hall ICs (15V) HU HV HW + C1 - C2 + - CL C+ Vs VS VB VB Supply (7.5V) PGU Charge Pump CB CLOCK RM FG MonoMulti PGV PGW Edge- Top arm Driver FG Trigger MCR MU 3-phase Distributer CM RWD MV MW VSP + CMP Bottom arm Driver - SAW Wave Generator Motor NGV NGW OC detection + CMP - CLOCK Vref Note.1 CR NGU VTR RTR CTR Filter RS GND Note.1 ECN3030F:Vref=0.50V Rs ECN3031F:Vref=1.23V Fig.4 Block diagram with external parts 6.2 Supply Voltage Sequence The order for turning on power supplies should be (1)Vcc, VS (2)VSP. The order for turning off should be (1)VSP (2)VS, Vcc. When the order is mistaken, there may be a case when the external bridge circuit is broken. PDE-3030F/31F-0 P7/7 ECN3030F/3031F 7. Terminal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 FG M CR CR VTR HU HV HW VSP RWD RS CB NGU NGV NGW MU PGU N .C MV PGV N .C MW PGW N .C C+ VS CL VCC GND 28 27 26 25 24 23 22 21 20 19 18 17 16 15 (M ark in g sid e) F ig. 5 8. P in co n n ectio n Package Dimensions 15 1 14 7.52±0.10 28 10.31±0.20 18.13MAX 0.22±0.05 0.15 0.53±0.20 0.15 +0.05 -0.10 2.59MAX 1.27 ±0.10 +0.10 0.41 -0.05 PDE-3030F/31F-0