KA2822BD Fairchild Semiconductor, KA2822BD Datasheet
KA2822BD
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KA2822BD Summary of contents
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... Fairchild Semiconductor International Description The KA2822D is a monolithic integrated circuit, and suit- able for the three-phase spindle motor driver of FDD system. 28-SSOPH-375 : 1A) PEAK Ordering Information Device KA2822D KA2822DTF 28-SSOPH-375 KA2822BD KA2822BDTF 28-SSOPH-375 1 www.fairchildsemi.com Package Operating Temp. 28-SSOPH-375 28-SSOPH-375 Rev. 1.0.1 ...
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KA2822D Pin Assignments FG INPUT( ) AGC INDEX PULSE WIDTH VOLTAGE REG INDEX BURST INDEX OUTPUT CE SIGNAL GROUND FG ZERO CROSS FG OUTPUT RPM SELECT CHARGE PUMP OUTPUT OSC INPUT ...
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Pin Definitions Pin Number Pin Name 1 FG_INPUT 2 AGC 3 INDEX PULSE WIDTH 4 VOLTAGE REGULATOR 5 INDEX BURST 6 INDEX OUTPUT SIGNAL GROUND 9 FG ZERO CROSS 10 FG OUTPUT 11 RPM SELECT 12 CHARGE ...
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KA2822D Internal Block Diagram U INPUT (+) 19 + U_AMP U INPUT INPUT (+) 24 + V_AMP V INPUT AGC AGC 2 HALL BIAS Start- 1.3V FG_AMP FG INPUT(+) 28 + ...
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Equivalent Circuits U_amp, V_ amp input vcc vcc 2.5k (19Pin, 25Pin) FG input and FG output vcc vcc vcc 0.5k 0.5k 25k CE input vcc vcc drive output and current detection 1, 2 vcc 5k ...
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KA2822D Equivalent Circuits (Continued) Index pulse width detection output vcc vcc 2k 2k RPM select input vcc 6k (11Pin) Index output vcc (6Pin) Phase compensation and current detection 1, 2 vcc (15Pin) (3Pin) vcc AGC (2Pin) vcc 1.4V 6 vcc ...
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Equivalent Circuits (Continued) (9Pin) vcc to IIL Circuit Charge pump FG zero cross output vcc vcc vcc Charge pump output vcc (12Pin) vcc 7 KA2822D vcc Buffer amp ...
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KA2822D Absolute Maximum Rating (Ta=25 C) Parameter Maximum power supply voltage Maximum input voltage Maximum output current Normal output current Power dissipation Operating temperature Junction temperture Storage temperature Power Dissipation Curve Power Dissipation : PD[W] Power dissipation decreases in the ...
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Electrical Characteristics (Ta= =5V) CC Parameter SUPPLY CURRENT Supply current 1 Supply current 2 CHIP ENABLE Input current Input low voltage Input high voltage RPM SELECT Input current Input low voltage Input high voltage HALL AMP note Input ...
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KA2822D Electrical Characteristics (Continued) (Ta= =5V) CC Parameter CHARGE PUMP Charge current Discharge current note Current ratio Off current note Clamp voltage FG AMP note Output DC voltage Voltage gain 2 note Input voltage range note Noise margin ...
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Application Information 1. CHIP ENABLE This function turns on or off all blocks by low or high signal AND W PHASE OUTPUT AMP These ampilifiers drives three output phases - U, V, and W which have 120(degree) ...
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KA2822D Typical Performance Characteristics I CC 15.0 [mA] 1.5 /div Vref 3.0 [V] 0.3 /div. 0 0.8/div vs. Vref (Pin4) CC 0.8/div vs Index pulse width 8.0 [ms] ...
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Typical Application Circuits SW1 DISK_IN W_P H_D SW2 LED CE 47nF 47nF 47k 1MHz RPM_SEL INDEX +5V 220nF 100 U INPUT(+) INPUT INPUT(+) INPUT HALL BIAS 27 AGC ...
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MIN 0.002 2.20 0.20 0.087 0.008 2.50 MAX 0.098 ...
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TRADEMARKS DISCLAIMER LIFE SUPPORT POLICY PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition ...