KA3017 Fairchild Semiconductor, KA3017 Datasheet
KA3017
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KA3017 Summary of contents
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... Car Mini Disk Player • Car Navigation System ©2002 Fairchild Semiconductor Corporation www.fairchildsemi.com Description The KA3017 is a monolithic integrated circuit suitable for a 4-CH motor driver which drives the tracking actuator, focus actuator, sled motor, loading motor and 3-phase BLDC spindle motor of the MDP/CAR-MD/CAR-NAVIGATION system. ...
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... KA3017 Pin Assignments ECR VCC2 PC1 6 7 SIGGND VM 8 CS1 DIR FIN (GND KA3017 (GND) FIN DO4 + 35 DO4 AVM3 34 DO3 + 33 32 DO3 BTLPGND2 31 30 BTLPGND1 29 DO2 + 28 DO2 DO1 + 27 26 DO1 DI1 ...
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... BTL Drive Input 4 I BTL Drive Input 3 I BTL Drive Input 2 I BTL Drive Input 1 O BTL Drive 1 Output (-) O BTL Drive 1 Output (+) O BTL Drive 2 Output (-) O BTL Drive 2 Output (+) - BTL Power Ground 1 - BTL Power Ground 2 O BTL Drive 3 Output (-) O BTL Drive 3 Output (+) KA3017 3 ...
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... KA3017 Pin Definitions (Continued) Pin Number Pin Name 34 AVM3 35 DO4- 36 DO4+ 37 MUTE4 38 MUTE3 39 MUTE12 40 AVM4 41 BIAS 42 BTLSGND 43 H1- 44 H1+ 45 H2- 46 H2+ 47 H3- 48 H3+ 4 I/O Pin Function Descrition - BTL CH3 Motor Supply Voltage O BTL Drive 4 Output (-) O BTL Drive 4 Output (+) I BTL Drive Mute CH4 ...
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... Internal Block Diagram PWRGND 13 Power Save OPIN + 17 OPIN 18 + OPOUT 19 VCC1 20 + AVM12 DI4 DI3 24 DI2 FIN (GND Absolute Values + Direction Detector + + + + FIN (GND) KA3017 H3 H2+ 46 Detector H1 BTLSGND BIAS AVM4 + 39 MUTE12 x2 MUTE x2 x2 MUTE MUTE 38 MUTE3 37 MUTE4 ...
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... KA3017 Equivalent Circuits Hall Bias 5 50k Torque Control Reference & Signal Current Detector 2.7k 9 120 6 1 Phase Compensation Capacitor 10 FG Signal Output 10k Start/Stop 50 50k 30k ...
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... Equivalent Circuits (Continued) 3-Phase Rotational Direction Output 25k 50 3-Phase Output 60k OP-AMP Ouput Short Brake 80k OP-AMP Input 10k 7k 7k BTL Drive Input 100 KA3017 18 7 ...
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... KA3017 Equivalent Circuits (Continued) BTL Drive Output 10k 20k BTL Bias Voltage 41 50 200 BTL Drive Mute 50 50k 30k Hall Input ...
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... Operating Supply Voltage (BTL Motor) Symbol V CC1max V CC2max V Mmax V MBTLmax Pd Topr Tstg I OMAXS I OMAXB 1.6mm PCB (Phenolic resin material) 75 100 125 150 175 Symbol V CC1 V CC2 MBTL KA3017 Value Unit note 3.0 W -35 ~ +85 C -55 ~ +150 C 1 Ambient Temperature Min. Typ. Max. Unit 4.5 - 13.2 4 ...
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... KA3017 Electrical Characteristics Parameter Circuit Current 1 Circuit Current 2 START/STOP On Voltage Range Off Voltage Range HALL BIAS Hall Bias Voltage HALL AMP Hall Bias Current In-phase in Voltage Range note Minimum in Level TORQUE CONTROL In Voltage Range note Offset Voltage (-) Offset Voltage (+) In Current In/Output Gain ...
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... RR V =0.1Vrms, 120kHz IN SR 120Hz, 2Vpp V Pin37, 38 Variation MOFFCH V Pin37, 38 Variation MONCH OH1 V - OL1 I - SINK I - SOU1 G f=1kHz -75dB VO1 IN RR1 f=120Hz -20dB IN SR1 f=120Hz, 2Vp-p CMRR1 f=1kHz -20dB IN KA3017 Min. Typ. Max. Unit - - 9.5 10 10.5 12.0 13 1 0 - 300 nA 11 ...
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... KA3017 Calculation of Gain & Torque Limit Current Current / Voltage Convertor + EC Gm ECR Absolute Values 0.255 is made from GM times R1 and is a fixed value within IC. 0.255 Gain = -------------- - R S Vmax (see above block diagram) is set to 350mV. Vmax 350 mV Itl mA = --------------- - = ----------------------- - Negative Feedback loop Vin Driver ...
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... On the other hand and TR Q3 are on, the motor (or actuator) rotates in reverse direction. - When the input signal Vin, through the pin (pin 22, 23, 24 and 25) is below the Vbias, then the motor (actuator) moves in forward direction. 2.5[V] Above Mute Function Operation Normal Operation VCC Q1 DRIVE M AMP GND 41 + AMP1 LEVEL SHIFT 10k Q2 DRIVE AMP KA3017 13 ...
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... KA3017 - When the input signal Vin, through the pin (pin 22, 23, 24 and 25) is above the Vbias, then the motor (actuator) moves in reverse direction change the gain, modify the external resistor's value (Rextern Torque & Output Current Control Torque & Output Current Control ...
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... IC. To remove these shortcomings and to enhance efficiency, the short brake function is added to KA3017. When the short brake function is active, all upper Power transistors are turned off and the lower Power transistors turned on reduce the rota- tional velocity of the motor ...
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... KA3017 7. Rotating Direction Detecting Function H2 H3+ + D-F The forward and reverse rotations of the MD are detected by the circuit, as shown in the above Table. - The rotational direction of the MD can be learned by the output waveforms of the hall sensor and/or the driver. Hall sensors are turned on in the order shown below ...
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... MD from rotating in the reverse direction, a reverse rotation resistant function is required. Its operational principles are discussed below. Rotation H2 Forward H Reverse L Current Sense Amp Q Gain Controller >E is sometimes controlled to retard and/or stop the MD. As the D-F Driver M Reverse Rotation Preventer E <E E > Forward Brake and Stop – Stop KA3017 17 ...
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... KA3017 9. Fg Output Function The FG output detects the number of rotations of the MD. This is generated from combination zero-crossing of the hall sensor output waveforms. The FG output circuit is as shown below 10. Hall Sensor Connection External Hall sensors are used in series or in parallel connection as shown below. ...
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... After the signal is converted to a current in the amplitude control circuit, the current is supplied to the output driver, which then provides a motor drive current. The phases of the hall input signal, output voltage, and output current are shown below output current A1 output voltage A2 output current A2 output voltage A3 output current A3 output voltage KA3017 19 ...
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... KA3017 Typical Performance Characteristics Total Circuit Icc1(A) Vcc vs Icc1 0.015 0.010 0.005 0.000 Icc1(mA) Temp vs Icc1 11 10.9 10.8 10.7 10.6 10.5 10.4 10.3 10.2 10.1 10 -35 - Vom(V) Vcc vs Vom 5 4.5 4 3.5 3 2.5 2 1 3 Icc2(mA Vcc(V) Icc2(mA) 8 7.8 7.6 7 ...
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... Vcc1 = 12V Bias = 2.5V Rin=10K Vin(V) Vol(mV) 500 400 300 200 Io = source current 100 0 50 100 325 375 450 Io(mA) Vin vs Vout (5V)_ Vcc1 = 5V Bias = 2.5V Rin=10K Vin( Vol Io = source current 150 200 250 300 350 400 450 Io(mA) KA3017 8 500 21 ...
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... KA3017 Typical Performance Characteristics OP AMP Part Vrnf(mV Vrnf 350 300 250 200 150 100 Isource(mA) Vcc vs Isource 3.5 4 4.5 5 5.5 22 (Continued) Vrnf(mV) 350 300 250 200 150 100 Ecr = 2.5V RNF=0 Ec(V) Isink(mA Rout= 6 3.5 Vcc( Vrnf Ecr = 1.6V RNF=0 Ec(V) ...
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... OPIN ( ) SW6 IN3 37 V RL4’ 36 DO4+ RL4 SW4 35 DO4 12V AVM3 DO3+ 33 SW3 RL3’ DO3 32 RL3 RL2 30 SW2 29 DO2+ DO2 28 DO1 DO1 SW1 RL1 25 DI1 V 24 SERVO AMP TRACKING FOCUS SLED CONTROL TRAY OPOUT V CC SW7 1 1. KA3017 23 ...
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... E C SW14 5V A SW15 12V V V SW17 IFR SW18 24 H3+ H3 H2 SW12 SW13 3 ECR 4 EC VCC2 5 6 PC1 SIGGND CS1 SW16 DIR VSB SW19 SW20 BTLPGND2 KA3017 BTLPGND1 DO4+ 36 DO4 35 AVM3 34 33 DO3+ DO3 DO2+ 29 DO2 28 DO1+ 27 DO1 26 25 DI1 ...
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... CS1 9 SYSTEM SS 10 CONTROL ROTATE 11 DIR DIRECTION 12 SB SHORT BREAK KA3017 VCC + DO4+ TRAY MOTOR 35 DO4 AVM3 34 +5V 33 DO3+ SLED MOTOR 32 DO3 31 BTLPGND2 30 BTLPGND1 29 DO2+ FOCUS ACTUATOR DO2 28 DO1+ 27 TRACKING ACTUATOR DO1 26 DI1 SERVO AMP +5V TRACKING FOCUS SLED CONTROL TRAY KA3017 25 ...
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... KA3017 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...