KA3014 Fairchild Semiconductor, KA3014 Datasheet
KA3014
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KA3014 Summary of contents
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... Car navigation system ©2000 Fairchild Semiconductor International www.fairchildsemi.com Description The KA3014 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 spin- dle motor of the MDP/CAR-MD/CAR-NAVIGATION sys- tem ...
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... Pin Assignments ECR VCC2 5 PC1 6 7 SIGGND VM 8 CS1 DIR FIN (GND KA3014 (GND) FIN DO4 + 36 35 DO4 AVM3 34 DO3 + 33 32 DO3 31 BTLPGND2 30 BTLPGND1 29 DO2 + DO2 28 DO1 + 27 26 DO1 DI1 KA3014 ...
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... KA3014 Pin Definitions Pin Number Pin Name ECR VCC2 6 PC1 7 SIGGND CS1 10 S/S 11 DIR PWRGND RESX 18 VREGX 19 REGOX 20 VCC1 21 AVM12 22 DI4 23 DI3 24 DI2 25 DI1 26 DO1 27 DO1+ 28 DO2 29 DO2+ 30 BTLPGND1 31 BTLPGND2 I/O Pin Function Descrition I Hall bias O FG signal output I Torque control reference ...
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... BTL drive 4 output (+) I BTL drive mute BTL drive mute BTL drive mute – BTL CH 4 motor supply voltage – BTL bias voltage – BTL drive signal ground I Hall1(–) input I Hall1(+) input I Hall2(–) input I Hall2(+) input I Hall3(–) input I Hall3(+) input 4 KA3014 ...
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... KA3014 Internal Block Diagram PWRGND 13 Power Save RESX 17 VREGX 18 + REGOX 19 VCC1 20 + AVM12 DI4 DI3 24 DI2 FIN (GND Absolute Values + Direction Detector + + + + FIN (GND H3 H2+ 46 Detector H1 BTLSGND BIAS AVM4 + 39 MUTE12 x2 x2 MUTE MUTE MUTE 38 MUTE3 37 MUTE4 ...
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... Equivalent Circuits Hall bias 5 50k Torque control reference & signal Current detector 2.7k 9 120 1 Phase compensation capacitor 10 6 KA3014 FG signal output 10k Start / Stop 50 50k 30k ...
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... KA3014 Equivalent Circuits (Continued) 3-phase rotational direction output 25k 50 3-phase output 60k Variable regulator Short brake 50 1k 80k Variable regulator reset 50 50k 30k Variable regulator output 19 50 ...
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... Equivalent Circuits (Continued) BTL drive input 22 50 100 BTL drive mute 37 50 50k 38 39 30k Hall input BTL drive output 10k 20k BTL bias voltage 41 50 200 KA3014 ...
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... KA3014 Absolute Maximum Ratings ( Ta=25 C) Parameter Supply voltage (BTL signal) Supply voltage (Spindle signal) Supply voltage (Spindle motor) Supply voltage (BTL motor) Power dissipation Operating temperature Storage temperature range Maximum output current (Spindle part) Maximum output current (BTL part) Notes: 1. When mounted on 70mm 70mm 2 ...
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... A FHL FG V Hn+, Hn input D-range FGR 300mA =300mA =0 DIRH =10 A DIRL FG – SBON – SBOFF 10 KA3014 Min. Typ. Max. Units – 0 0.1 mA – 8.0 – mA 2.5 – – V – – 0.5 V – 1.2 1.8 V – 1.5 – 4 – – mVpp 0.5 – ...
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... KA3014 Electrical Charateristics (Continued) (BTL DRIVE PART, Ta= CC1 Parameter BTL DRIVE PART (Ta= CC1 Quiescent circuit current Output offset voltage Maximum output Amplitude voltage Voltage gain Ripple rejection ratio Slew rate Mute off voltage Mute on voltage VARIABLE-REGULATOR Regulator output range Load regulation ...
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... 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. • To change the gain, Modify the external resistor's value (Rextern) 2.5[V] above Mute function operation Open or 0.5[V] below Normal operation VCC Q1 DRIVE M AMP GND 41 + LEVEL AMP1 SHIFT 10k I are fed into the drive buffers DRIVE AMP KA3014 ...
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... KA3014 3. TORQUE & OUTPUT CURRENT CONTROL Torque & output current control Torque sense amp • By amplifying the voltage difference between for the current sense amp. AMP • The current sense amp produces the input for the gain controller to allow the output current (I ...
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... On the other hand, when the SS (Start/Stop) pin 10 is open or low (GND), the turned off and the bias circuit is disabled. • The power save operation controlled by SS (pin 10) input conditions is as follows; Pin #10 KA3014 High Start Opin / Low Stop Bias block V CC 100k 10 Start 30K Q1 Stop 12K ), the turned on and the bias circuit is enabled KA3014 ...
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... However, if the spindle motor rotates rapidly, the brake function of the reverse voltage may produce too much heat at the drive IC. To remove these shortcomings and to enhance efficiency, the short brake function is added to KA3014. 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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... If the hall sensors turn on in the order H3, then this indicates reverse rotation. The output waveforms of the hall sensors are as shown below Inversely, if the hall sensors turn on in the order, H3 the hall sensors are as shown below DIR < > H1, then this shows forward rotation. The output waveforms Rotation DIR Forward Low CR Reverse High KA3014 ...
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... KA3014 8. REVERSE ROTATION PREVENTING FUNCTION H2 H3 D-F/F • The forward and reverse rotation of the motor are detected, as shown in the table below. Consequently at reverse rotation, the D-F/F output Q becomes low and cuts off the output current sense amp, resulting in the stoppage of the gain controller function. • ...
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... HALL SENSOR CONNECTION External hall sensors are used in series or in parallel connection as shown below. HALL HALL 2 HALL KA3014 V CC HALL 1 HALL 2 HALL ...
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... KA3014 11. HALL INPUT OUTPUT TIMING CHART The 3-phase hall signal is amplified in the hall amplifiers and sent to the matrix section, where the signal is further amplified. 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 ...
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... Temp ( C) Gvo(dB) 13.0 12.5 12.0 11.5 11.0 Input = 0.5V, 4.5V Bias = 2.5V 10.5 Rin = 10K 10.0 5.5 6.0 6.5 7.0 4.0 4.5 Vcc(V) 20 KA3014 Vcc vs Icc2 Vcc(V) Temp vs Icc2 Vcc =12V Temp ( C) Vcc vs Gvo (5V) Vcc1 = 5V Vin = 0.1V rms f = 1KHz Rin=10K 5 ...
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... KA3014 Typical Performance Characteristics (Continued) Gvo(dB) Vcc1 vs Gvo(12V) 13.0 12.5 12.0 11.5 11.0 10.5 10 Vout(V) Vin vs Vout (12V -10 - Voh( Voh 1.2 1.0 0.8 0.6 0.4 0 150 225 275 Vout( Vcc1 = 12V -2 Vin = 0.1V rms f = 1KHz -3 Rin=10K - Vcc(V) Vcc1 = 12V Bias = 2.5V ...
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... Typical Performance Characteristics (Continued) Vrnf(mV Vrnf 350 300 250 200 150 100 Vrnf(mV) 350 300 250 200 150 100 Ecr = 2.5V RNF=0 Ec( Vrnf Ecr = 1.6V RNF=0 Ec(V) KA3014 5 ...
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... KA3014 Test Circuits 1 BTL Drive Part ECR VCC2 5 6 PC1 7 SIGGND CS1 DIR 12V 2. BTLPGND2 KA3014 BTLPGND1 12V 10 F BTL SVCC 12V RL4’ 36 DO4+ RL4 SW4 35 DO4 12V AVM3 DO3+ 33 SW3 RL3’ DO3 32 RL3 RL2 30 SW2 29 DO2+ DO2 28 27 ...
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... Spindle Motor Drive Part SW14 5V A SW15 12V V V SW17 IFR SW18 H3+ H3 H2 SW12 SW13 3 ECR VCC2 6 PC1 7 SIGGND CS1 SW16 DIR VSB SW19 SW20 AVM3 BTLPGND2 KA3014 BTLPGND1 KA3014 36 DO4+ DO4 DO3+ DO3 DO2+ 29 DO2 28 DO1+ 27 DO1 26 25 DI1 ...
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... SERVO 3 ECR TORQUE CONTROL 4 EC VCC2 5 VCC 6 PC1 0 SIGGND 12V CS1 SYSTEM 10 SS CONTROL ROTATE 11 DIR DIRECTION 12 SHORT SB BREAK 13 S KA3014 VCC xxV RESET VARIABLE VOLTAGE VCC 25 + DO4+ TRAY MOTOR DO4 35 AVM3 34 +5V DO3+ 33 SLED MOTOR DO3 32 BTLPGND2 31 BTLPGND1 30 DO2+ 29 FOCUS ...
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... KA3014 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. ...