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| NJM2626 PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTROL IC s PACKAGE OUTLINE s GENERAL DESCRIPTION The NJM2626 is a 3-phase DC brush less motor control pre-driver IC with PWM control. It takes hall IC inputs and generates motor driving waveform. Output pre-driver is optimized to work with external power MOS transistors for better power handling. The NJM2626 can easily implement 3-phase DC motor application with speed control feature. NJM2626V s FEATURES * Operating Voltage 6 to 26V * Pre-driver circuit Lower arm : (Iout=+30mA/-30mA TYP.) Upper arm : (Iout=30mA TYP.) * Current limit sense voltage (Current limit=0.5V10%) * Internal Oscillator (Frequency control for external capacitor) * Forward or Reverse direction * Internal Soft Start (External capacitor to Verr pin) * Internal ON/OFF Circuit (No-output is Verr pin to GND) * Bipolar Technology * Package Outline SSOP16 s PIN CONNECTION 1 16 2 15 3 14 4 13 5 12 1.FR 2.Vref 3.H1 4.H2 5.H3 6.OSC 7.Verr 8.GND 9.Ilimit 10.WL 11.VL 12.UL 13.WH 14.VH 15.UH 16.VCC 6 11 7 10 8 9 NJM2626V Ver.2005-01-17 -1- NJM2626 s BLOCK DIAGRAM 1:FR VCC Vref 15:UH 3:H1 VCC 4:H2 VCC Rotor Position Decode 14:VH 5:H3 13:WH VCC 16:VCC 2:Vref Vref Saw Osillator UVLO 12:UL 6:OSC Logic 11:VL 7:Verr + + 10:WL + 8:GND - 9:ILimit -2- Ver.2005-01-17 NJM2626 s BABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYNBOL Maximum Supply Voltage Maximum Output Current Power Dissipation Operating Temperature Range Storage Temperature range VCC IoMAX PD Topr Tstg RATINGS 28 40 300 (Device itself) 640 (NOTE1) -40 +85 -50 +150 UNIT V mA mW C C NOTE1 : EIA/JEDEC STANDARD Test board (76.2*114.3*1.6mm, 2layers, FR-4) mounting s ELECTRICAL CHARACTERISTICS (VCC=12V, Ct=1000pF, Cref=1F, Ta=25C) Total Device PARAMETER Operation Supply Voltage Under Voltage Sense Voltage Hysteresis Voltage (Under Voltage Lock Out) Supply Current SYMBOL VCC UVLO UVLO ICC RL= TEST CONDITION Output Enable VCC Decreasing MIN. 6.0 4.5 0.35 TYP. 5.0 0.45 12.0 MAX. 26.0 5.5 0.55 18.0 UNIT V V V mA Reference Voltage Section PARAMETER Reference Voltage Output Line Regulation Load Regurlationj Hall Amplifier Section PARAMETER Input H Level Voltage Input L Level Voltage Input Bias Voltage Pull-up Resistance Output Section PARAMETER Under Arm Output Voltage 1 Under Arm Output Voltage 2 Output Clamp Voltage Upper Arm Output Voltage Output Leak Current SYMBOL VOH(D) VOL(D) VCL(D) VOL(U) IoLEAK TEST CONDITION Isource=30mA Isink=30mA VCC=26V Isink=30mA MIN. 10 TYP. 10.3 0.5 18 0.5 MAX. 1.0 20 1.0 1.0 UNIT V V V V uA SYMBOL VhH VhL Iho RPUH TEST CONDITION Vin=0.8V Vin=0.8V MIN. VCC-0.8 SYMBOL Vref VrefLI VrefLO TEST CONDITION Iref=1.0mA VCC=6V 18V Iref=1.0mA 20.0mA MIN. 3.6 - TYP. 4.0 50 15 MAX. 4.4 100 50 UNIT V mV mV TYP. 10 MAX. 0.8 -400 13 UNIT V V nA k 7 Ver.2005-01-17 -3- NJM2626 s ELECTRICAL CHARACTERISTICS (VCC=12V, Ct=1000pF, Cref=1F, Ta=25C) Over Current Sense Section PARAMETER Sense Voltage Hysteresis Voltage Input Voltage Ratio Input Bias Current Oscillator Section PARAMETER Oscillator Frequency Supply Voltage Change Ratio PWM0% Sense Voltage PWM100% Sense Voltage Saw Wave Peak Voltage Saw Wave Bottom Vltaeg Error Amplifier Section PARAMETER Input Offset Voltage Input Bias Current Input Common Mode Voltage Range SYMBOL VIO IIBRR VICMRR TEST CONDITION MIN. 0 TYP. 7 -46 MAX. Vref UNIT mV nA V SYMBOL fosc fosc/V PWM0 PWM1 Vpfosc Vbfosc TEST CONDITION VCC=6V 18V PWM DUTY=0% PWM DUTY=100% MIN. 22 3.5 2.4 0.75 TYP. 27 1 2.8 0.9 MAX. 33 5 0.35 3.2 1.05 UNIT kHz % V V V V SYMBOL VTH VTHhys VIN IIB TEST CONDITION VIN=0V MIN. 0.45 TYP. 0.50 0.1 -0.9 MAX. 0.55 3.0 -5.0 UNIT V V V A Forward or Reverse Direction Section (FR input terminal) PARAMETER Output Forward Direction Output Reverse Direction Hysteresis Voltage Ratio Pull-Up Resistance SYMBOL VF VR VFR RPUFR TEST CONDITION MIN. Vref-0.8 TYP. 0.5 10 MAX. Vref 0.8 13 UNIT V V V k 7 (note) Output swich test are performed under pulsed conditions to minimize power dissipation. s HALL INPUT vs HALL OUTPUT TRUTH TABLE FR=L H1 H H H L L L H2 L L H H H L H3 H L L L H H H1 L L L H H H FR=H H2 H H L L L H H3 L H H H L L H:Source,L:Sink,X:Hi-Z UH X X X L L X VH L X X X X L WH X L L X X X UL H H L L L L VL L L H H L L WL L L L L H H s FR INPUT TERMINAL Terminal Voltage L input H input Direction F R -4- Ver.2005-01-17 NJM2626 s TYPICAL APPLICATION VM 1:FR 3:H1 4:H2 5:H3 16:VCC 2:Vref 6:OSC Vref Saw Osillator Rotor Position Decode 15:UH 14:VH Motor VCC UVLO 13:WH 12:UL Logic 7:Verr + + - 11:VL 10:WL + - 8:GND 9:ILimit * A rotation direction change must be made after motor stopped completely. * When PWM duty is extremely small, two or more switching elements can not be driven entirely. In such case, switching elements will generate excess heat and it may cause destruction of the switching devices. Therefore, extensive heat evaluation is necessary for switching device selection particularly in consideration of the area of safety operation (ASO). Ver.2005-01-17 -5- NJM2626 s TYPICAL CHARACTERISTICS ICC vs. VCC 25 Ta=25degC H1=H2=H3=0V output=Open OSC=1000pF Verr=0V ICC vs. Temperature 20 VCC=12V H1=H2=H3=0V output=Open OSC=1000pF Verr=0V 15 20 15 ICC [mA] Icc [mA] 10 10 5 5 0 0 5 10 15 20 VCC [V] 25 30 35 40 0 -50 0 50 Temperature [degC] 100 150 UVLO vs. Temperature 6 output=Open OSC=1000pF Verr=3.5V dUVLO vs. Temperature 1.2 output=Open OSC=1000pF Verr=3.5V 1 5.5 UVLO-off 0.8 dUVLO [V] UVLO [V] 5 UVLO-on 0.6 0.4 4.5 0.2 4 -50 0 50 Temperature [degC] 100 150 0 -50 0 50 Temperature [degC] 100 150 Vref vs. VCC 5 Ta=25degC H1=H2=H3=0V output=Open OSC=1000pF Verr=0V Vref=1mA Vref vs. Io 5 Ta=25degC VCC=12V output=Open OSC=1000pF Verr=3.5V 4.5 4.5 4 4 Vref [V] Vref [V] 3.5 3.5 3 3 2.5 2.5 2 0 2 4 6 8 10 12 14 16 18 20 VCC [V] 22 24 26 28 2 0 20 40 60 Io [mA] 80 100 -6- Ver.2005-01-17 NJM2626 s TYPICAL CHARACTERISTICS Vref vs. Temperature 1 VCC=12V H1=H2=H3=0V output=Open OSC=1000pF Verr=0V dVFR vs. Temperature 4.4 VCC=12V output=Open OSC=1000pF Verr=3.5V 0.8 4.2 0.6 4 dVFR [V] 0.4 0.2 -50 0 50 Temperature [degC] 100 150 Vref [V] 3.8 3.6 0 -50 0 50 Temperature [degC] 100 150 VhH-L vs. Temperature 2.5 VCC=12V output=Open OSC=1000pF Verr=3.5V 12 Ta=25degC VCC=12V output=Open OSC=1000pF Verr=3.5V VOH(D) vs. Io 11.5 11 2 10.5 VOH(D) [V] VhH-L [V] 10 VhH 9.5 1.5 9 VhL 8.5 1 -50 0 50 Temperature [degC] 100 150 8 0 10 20 Io [mA] 30 40 50 VOH-d vs. Temperature 12 VCC=12V output=Open OSC=1000pF Verr=3.5V 3 Ta=25degC VCC=12V output=Open OSC=1000pF Verr=3.5V VOL(D) vs. Io 11.5 2.5 11 2 10.5 VOL(D) [V] VOH-d [V] 10 1.5 9.5 1 9 0.5 8.5 8 -50 0 50 Temperature [degC] 100 150 0 0 50 100 Io [mA] 150 200 Ver.2005-01-17 -7- NJM2626 s TYPICAL CHARACTERISTICS VCL vs. Temperature 18 VCC=28V output=Open OSC=1000pF Verr=3.5V 0.6 VCC=12V output=Open OSC=1000pF Verr=3.5V VTH vs. Temperature 17.5 0.55 0.5 VTH 17 VCL [V] VTH [V] 0.45 VTH-off 0.4 16.5 16 0.35 15.5 0.3 15 -50 0 50 Temperature [degC] 100 150 -50 0 50 Temperature [degC] 100 150 fosc vs. VCC 35 Ta=25degC H1=H2=H3=0V output=Open OSC=1000pF Verr=0V fosc vs. Temperature 30 VCC=12V H1=H2=H3=0V output=Open OSC=1000pF Verr=0V 28 30 fosc [kHz] fosc [kHz] 26 24 25 22 20 0 5 10 15 20 VCC [V] 25 30 35 40 20 -50 0 50 Temperature [degC] 100 150 RPU-FR vs. Temperature 20 VCC=12V output=Open OSC=1000pF Verr=3.5V 15 RPU-FR [k-ohm] 10 5 -50 0 50 Temperature [degC] 100 150 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -8- Ver.2005-01-17 |
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