njw4303 New Japan Radio Co.,Ltd, njw4303 Datasheet
njw4303
Related parts for njw4303
njw4303 Summary of contents
Page 1
... PWM 3-PHASE DC BRUSHLESS MOTOR CONTROLLER GENERAL DESCRIPTION The NJW4303 is a 3-Phase Brushless DC Motor Control pre-driver IC with PWM control. It generates the most optimal current flow patterns by receiving rotor magnetic pole detection signals from hall elements of 3-phase brushless motor. Operational voltage range for the IC has margin as 9.0V to 35V(maximum voltage of 40V), and it fits for a 12V/24V power supply ...
Page 2
... NJW4303 PIN FUNCTION LIST Terminal Name 1 VREF 5V Output Voltage Terminal 2 H1+ Hall Element Input Terminal H1+ 3 H1- Hall Element Input Terminal H1- 4 H2+ Hall Element Input TerminalH2+ 5 H2- Hall Element Input Terminal H2- 6 H3+ Hall Element Input Terminal H3+ 7 H3- Hall Element Input Terminal H3- 8,22,27,28 N ...
Page 3
... BLOCK DIAGLAM TSD S/S DEC H1- H2 H2- H3 H3- FR FRC BR Saw OSC Oscillator + - VERR GND FG VREF VREF Rotor Position Decode Dead Time PWM Logic + - Lock Detect Ct NJW4303 VCC UVLO ILIMIT - 3 - ...
Page 4
... NJW4303 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Hi-side Output Terminal Voltage FG Terminal Voltage LIMIT Terminal Voltage VERR Terminal Voltage Hall Input Terminal Voltage Logic Input Terminal Voltage Reference Voltage Output Current Hi-side Output Current Low-side Output Current FG Output Current Power Dissipation ...
Page 5
... BIH V I =30 mA OLH =35V OLEAKH = OHL1 OLSOURCE V I =30 mA OHL2 OLSOURCE V I =30 mA OLL OLSINK CLL OLSOURCE V I =10 mA FGL =5V LEAKFG FG NJW4303 = =0V, LIM CT MIN. TYP. - 5.3 - 6.4 - 170 135 - 35 6.3 6.8 6.8 7.3 - 0.5 3.30 3.55 0.90 1.00 2.5 5.5 0.25 0. 4.5 5 ...
Page 6
... NJW4303 ELECTRICAL CHARACTERISTICS V =24V =3.0V IH1+ IH3+ IH1- V =4.5V, V =4.5V→0.5V, C VERR OSC PARAMETER OVER CURRENT SENSOR BLOCK (ILIMIT PIN) Sense voltage Input bias current ERROR AMP BLOCK (VERR PIN) PWM0% sense voltage PWM100% sense voltage Input bias current OSCILLATOR BLOCK (OSC PIN) ...
Page 7
... Amp Block LOGIC INVERSION 3.5V ∆ V HYSIH 0V FR Dead Time Definition (FR Dead Time Block) ROTATING RVS DIRECTION (REVERSE 0.8V V FRC V VREF t Time t V VERR V V OSC OSC NJW4303 LOGIC INVERSION FWD RVS STOP STOP (FORWARD) (REVERSE) TIME t TIME t t DFRC1 DFRC2 - 7 - ...
Page 8
... NJW4303 Sensing Voltage/ Reset Voltage Definition (Over Current Sensing Block) V OSC V DET LIM V ILIMIT V OL Active ( UL, VL, WL Motor Rotation Action Lock Protection Detection/ Reset Time Definition (Lock Protection Block HCt V LCt t DCt t RCt THERMAL SHUTDOWN OPERATIONSL DEFINITION (Thermal shutdown block) ...
Page 9
... Hi-Z Hi Hi-Z Hi Hi-Z Hi VERR FR DEC Hi-Z Hi NJW4303 VREF Hi-Z Hi FWD Rotation Hi Hi Hi ...
Page 10
... NJW4303 INPUT VS OUTPUT TRUTH TABLE3 (DEC=H, H1+>H1-, H2+>H2-, H3+>H3-="H", Don't Care="X" TSD UVLO OFF OFF OFF OFF ...
Page 11
... Hi-SIDE LOW-SIDE VL WL TORQUE VERR CONTROL INPUT OSC ELECTRIC DEGREE POSITION (deg) 60 120 180 240 300 360 110 010 011 001 101 Fullspeed (PWMDUTY=100%) NJW4303 420 480 540 600 660 100 110 010 011 001 101 Reduced Speed (PWMDUTY=70%) 720 - 11 - ...
Page 12
... NJW4303 2. NORMAL FUNCTION→FORWARD/REVERSE SWITCHING while rotating HALL INPUT H3 code DEC(=L) N1(=L) N2(= FORWARD/REVERS INPUT FRC UH Hi-SIDE LOW-SIDE ELECTRIC DEGREE POSITION (deg) 60 120 180 240 300 100 110 010 010 110 100 FR=L Deadtime 360 420 480 540 600 660 ...
Page 13
... Hi-SIDE LOW-SIDE VL WL motor rotate function ELECTRIC DEGREE POSITION (deg) 60 120 180 240 300 360 110 010 011 001 101 Brake function Deadtime BR=L BR=H NJW4303 420 480 540 600 660 100 110 010 011 001 101 motor rotate function Deadtime BR=L 720 - 13 - ...
Page 14
... NJW4303 4. NORMAL FUNCTION→LOCK PROTECTION→LOCK RESET HALL INPUT H3 code DEC(=L) FR(=L) N1(=L) N2(= PIN OUTPUT CT UH HI-SIDE LOW-SIDE ELECTRIC DEGREE POSITION (deg) 60 120 180 240 300 100 110 010 011 011 011 motor rotate function Lock function 360 420 ...
Page 15
... HI-SIDE LOW-SIDE VL WL TORQUE VERR CONTROL INPUT OSC ELECTRIC DEGREE POSITION (deg) 60 120 180 240 300 360 110 010 011 001 101 Hi-Z Hi-Z Hi-Z Fullspeed motor stop (UVLO ON) NJW4303 420 480 540 600 660 100 110 010 011 001 101 Fullspeed 720 - 15 - ...
Page 16
... NJW4303 6. NORMAL FUNCTION→STOP FUNCTION (S/S=H)→NORMAL FUNCTION 0 VCC S HALL INPUT H3 code DEC(=L) FR(=L) N1(=L) N2(= HI-SIDE LOW-SIDE VL WL VERR TORQUE CONTROL INPUT OSC - 16 - ELECTRIC DEGREE POSITION (deg) 60 120 180 240 300 100 110 010 011 001 101 Fullspeed motor stop (STOP ON) ...
Page 17
... VL WL TORQUE CONTROL INPUT VERR OSC OFF ELECTRIC DEGREE POSITION (deg) 60 120 180 240 300 360 110 010 011 001 101 Soft Start (PWM) NJW4303 420 480 540 600 660 100 110 010 011 001 101 VERR Full speed (no PWM) 720 - 17 - ...
Page 18
... NJW4303 8. FG OUTPUT TIMING CHART OUTPUT TIMING CHART 1 (120 deg Input Mode HALL INPUT DEC=L or open (120 deg input mode) H3 code N1=H, N2=H N1=H, N2=L FG OUTPUT N1=L, N2=H N1=L, N2=L OUTPUT TIMING CHART 2 (60 deg Input Mode HALL INPUT DEC=H H3 (60 deg input mode) code N1=H, N2=H N1=H, N2=L FG OUTPUT N1=L, N2=H N1=L, N2=L * When the status of N1/N2 is H/H or L/H, FG output is not synchronized with Hall input, because FG output is produced by using a frequency divider. ...
Page 19
... OSC is more than 1pF. FRC Formula 3 ≅ 140 DFRC1 FRC 3 ≅ 140 DFRC2 FRC NJW4303 . Lock Protection Detect time ( discharging current (I CHGCt . The calculation formula for Ct is 0.1µF to 10µF. Ct VREF 10k 10k H1+/H2+/H3 H1- to H3- pin connecting 20k ...
Page 20
... NJW4303 TYPICAL APPLICATION CIRCUIT 1 TSD S/S DEC H1 H2 H3- - FRC FR C FRC BR OSC Saw Oscillator C OSC VERR C VERR GND - VREF FG-OUT FG VREF VREF UVLO Rotor Position Decode Dead Time PWM Logic + - + - Lock Detect VCC VCC UH VH ...
Page 21
... VREF VREF VREF UVLO Rotor Position Decode Dead Time PWM Logic + - + - Lock Detect V-FG + FG-OUT <Reference Value> + C1=22nF R1=10kΩ R2=40kΩ R3=10kΩ D1:1S2076 COMP1:NJM2903 NJW4303 + C VCC VCC ILIMIT Lowpass Filter VM + GND 3Phase Motor ...
Page 22
... NJW4303 TYPICAL CHARACTERISTICS Tj=25 [ REF REF 5.50 o Tj=25[ C] 5.40 V =24[V] CC 5.30 5.20 5.10 5.00 4.90 4.80 4.70 4.60 4. [mA] REF OLSINK 1.0 o Tj=25 =24[V] 0.9 CC 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 [mA] OLSINK - 22 - 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 OLL 11.0 10.8 10.6 10.4 10.2 10.0 9.8 9.6 9.4 9.2 9 ...
Page 23
... CHGCt 9.00 o Tj=25[ C] 8.50 V =24[V] CC 8.00 7.50 7.00 6.50 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 0.50 1.00 1.50 2.00 2. OSC CHGOSC 52.0 51.5 51.0 50.5 50.0 49.5 49.0 48.5 1.00 1.50 2.00 V [V] OSC 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 3.00 3.50 4.00 0.50 2.5 o Tj=25 =24[V] CC 2.0 1.5 1.0 0.5 0.0 1.00 2.50 3.00 3.50 NJW4303 FGL o Tj=25 =24[ [mA DCHGCt o Tj=25 =24[V] CC 1.00 1.50 2.00 2.50 3. OSC DCHGOSC o Tj=25 =24[V] CC 1.50 2.00 2.50 V [V] OSC 3.50 4.00 3.00 3. ...
Page 24
... NJW4303 TYPICAL CHARACTERISTICS FRC CHGFRC 36 o Tj=25 =24[ 0.0 1.0 2.0 V [V] FRC CHGCt 5.0 o Tj=25 =24[V] CC 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.1 1.0 C [uF OSC OSC 1000 o Tj=25 =24[V] CC 100 10 1 100 1000 C [pF] OSC - 0.0 3.0 4.0 5 ...
Page 25
... NJW4303 FRC DFRC2 o Tj=25 =24[ [uF] FRC CC2 V =24[ UVLO2 V Increasing CC -25 ...
Page 26
... NJW4303 TYPICAL CHARACTERISTICS REF 5.5 V =24[V] CC 5.4 I =1[mA] VREF 5.3 5.2 5.1 5.0 4.9 4.8 4.7 4.6 4.5 -50 - BIH 1.5 V =24[V] 1.4 CC 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -50 - VOHL 11.0 V =24[ =30[mA] OLSOURCE 10.5 10.0 9.5 9.0 8.5 8.0 -50 - 100 125 150 -50 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 75 100 125 150 -50 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 75 100 125 ...
Page 27
... V =24[ =1000[pF] OSC 200 150 100 50 0 -50 75 100 125 150 NJW4303 DETLIM V =24[ 100 DCHGOSC V =24[ =2.5[V] OSC - 100 =24[V] CC -25 0 ...
Page 28
... NJW4303 TYPICAL CHARACTERISTICS HCt 3.80 V =24[V] CC 3.75 3.70 3.65 3.60 3.55 3.50 3.45 3.40 3.35 3.30 -50 - CHGCt 9.0 V =24[V] 8 =2.5[V] Ct 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 -50 - 1.30 1.25 1.20 1.15 1.10 1.05 1.00 0.95 0.90 75 100 125 150 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 75 100 125 150 LCt V =24[V] CC -50 - DCHGCt V =24[ =2.5[V] Ct -50 - ...