KA3084D Fairchild Semiconductor, KA3084D Datasheet
KA3084D
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KA3084D Summary of contents
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... Target Applications • Video cassette recorder(VCR) cylinder (drum) motor • Other 2-phase BLDC motor ©2000 Fairchild Semiconductor International www.fairchildsemi.com Description The KA3084D is a monolithic integrated circuit, and it is suitable for drum motor driver of VCR system. 22-SOP-300 Ordering Information Device Package KA3084D ...
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... Hall signal input 2P I Hall signal input 2N I Voltage control (Motor speed control) O Phase generator output O Phase generator amp. output I Phase generator input O Regurated voltage I Frequency generator input I/O Reference voltage O Frequency generator amp. output O Frequency generator output Pin Function Description KA3084D ...
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... KA3084D Internal Block Diagram AMP AMP ...
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... Equivalent Circuits Description Pin No CTL Motor output Hall input 10, 11, 12, 13 Internal circuit V REG REG Vcc 50 500 CTL 4 KA3084D I CTL 5 8 500 ...
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... KA3084D Equivalent Circuits (Continued) Description Pin No. PG, FG 16, 17 amplifier 19 hysteresis amplifier Internal circuit V REG REG REG 10K ...
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... Operating supply voltage Symbol Value V 18 CCmax note1 I 1.0 Omax I 30 REGmax note2 +75 OPR +125 STG 114 1.57mm) C for using above Ta=25 C. (Without heat-sink) SOA 100 125 150 o C) Symbol Min Unit Remark heat sink 175 Ambient temperature Typ. Max Units 12 16 KA3084D V ...
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... KA3084D Electrical Characteristics (Ta= =12V, unless otherwise specified) CC Parameter FULL CIRCUIT Quiescent current VOLTAGE REGULATOR Regulated voltage Regulated voltage HALL INPUT note Hall minimum input level Hall bias current OUTPUT DIRVE Output saturation voltage (Upper) Output saturation voltage (Lower) Output current A Output current B ...
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... The note in the chart means items calculated and approved in design not the items proven by actual test result. Symbol Condition TSD - T - HYS V - OFS I V =2.5V AMPIN =12V, Signal=500Hz =2.0V OHA =2.7 OLA HYS V V =2.0V OLHYS BHYS 8 KA3084D Min. Typ. Max. Units 130 160 - 0.2 2 REG REG 1.48 0.74 - 0.85 1.45 V 130 165 200 mV - 0.12 ...
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... CTL Converter Figure conceptual diagram of the KA3084D. It shows that it turns on or off depending on the signal of the hall sensor used for sensing the rotor position of motor. The AMP, G (Feedback) and output blocks are circuits used to determine current gain of KA3084D. M Furthermore, HallIN represents the hall signal switch. ...
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... I CTL 3. VOLTAGE CONTROL Even though KA3084D command uses Ic to control the magnitude of I age control and has option to use current control. V CTL Converter Figure 4 shows the principle of the voltage control. The V is the motor speed control voltage, and the I CTL Figure 5 shows the graph ...
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... KA3084D Typical Performance Characteristics REG V = 3.5V CTL RL = 10K V = 3.5V CTL RL = 10K Temperature 2.Temp REG 4.V vs GM1 3.5V CTL RL = 10K 6 ...
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... GND2(Power) FGIN SW18 OUT2N REG OUT1P PGIN GND1(Power) PGAMPOUT 16 OUT1N PGOUT CC1 CTL 14 H1P H2N H1N H2P 12 12 KA3084D 2mA 3 SW24 2 1 FG_OUT A 500 A 2 SW22 SW23 500 FG_AMPOUT SW21 SW20 SW19 FG_IN 2 V REG REG PG_IN 1 SW14 SW13 2 PG_AMPOUT ...
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... KA3084D Typical Application Circuits M V REG HALL HALL GND(Signal) FGOUT FGAMPOUT CC2 OUT2P GND2(Power) FGIN OUT2N V 5 REG OUT1P PG_IN GND1(Power) PGAMPOUT 7 16 OUT1N PGOUT CC1 CTL 14 H1P H2N H1N H2P CTL ...
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... KA3084D 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. ...