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HA13565F Dataheets PDF



Part Number HA13565F
Manufacturers Hitachi Semiconductor
Logo Hitachi Semiconductor
Description Three-Phase Brushless DC Motor Driver IC
Datasheet HA13565F DatasheetHA13565F Datasheet (PDF)

HA13565F Three-Phase Brushless DC Motor Driver IC ADE-207-226A (Z) 2nd. Edition April 1997 Description HA13565F is a 3-phase brushless DC motor driver IC with digital speed control. It is developed for direct drive of the spindle motor of 5V floppy disk drives. It has the following functions and features. Functions • • • • • • 3 sensor 1.0A/phase, 3-phase drive circuit Digital speed control circuit Sensorless index circuit Current limiter circuit Over-temperature shutdown circuit (OTSD) Circui.

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HA13565F Three-Phase Brushless DC Motor Driver IC ADE-207-226A (Z) 2nd. Edition April 1997 Description HA13565F is a 3-phase brushless DC motor driver IC with digital speed control. It is developed for direct drive of the spindle motor of 5V floppy disk drives. It has the following functions and features. Functions • • • • • • 3 sensor 1.0A/phase, 3-phase drive circuit Digital speed control circuit Sensorless index circuit Current limiter circuit Over-temperature shutdown circuit (OTSD) Circuit for switching between 300 and 360rpm speeds Features • Low saturation voltage 0.5V Typ (at 0.7A) • Soft switching drive circuit • Small surface mount package HA13565F Pin Arrangement Hall bias Bias(–)pin Bias(+)pin TAB 17 16 15 14 13 12 11 TAB 10 9 8 7 1 2 3 TAB 4 5 6 V(+)input V(–)input W(+)input W(–)input 20 19 18 21 22 23 24 TAB U(–)input U(+)input VCC Bias output U phase output V phase output Current detection AGC NC NC FG(+)input 25 26 27 28 W phase output Phase compensation Charge pump output CLK input FG(–)input RPM control pin Index PC (Top view) 2 Index TC Index output CEB HA13565F Pin Function Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name FG (–) input RPM control pin Index PC Index TC Index output CEB CLK input Charge pump output Phase compensation W phase output Current detection V phase output U phase output Bias output Bias (+) pin Bias (–) pin Hall bias VCC U phase (+) input U phase (–) input V phase (+) input V phase (–) input W phase (+) input W phase (–) input AGC NC NC FG (–) input Function FG amp. (–) input terminal Control terminal for motor rotation speed “H” → 360 rpm, “L” → 300 rpm Connection for the time constant circuit that adjusts the index circuit Vth level. Burst setting time constant circuit for index circuit Index signal output terminal (Open collector) Chip enable terminal “H”: disable, “L”: enable Reference clock input terminal Connection for the time constant circuit that integrates the speed error signal. Connection for the phase compensation capacitor that stabilizes the operation of the control system. W phase output Output current detection and terminal which is connected with resistor for current limiter. V phase output U phase output Smoothing circuit for the pumped output circuit Output circuit used for bias pumping Input circuit used for bias pumping Hall element bias input Power supply U phase (+) input terminal U phase (–) input terminal V phase (+) input terminal V phase (–) input terminal W phase (+) input terminal W phase (–) input terminal Smoothing circuit for hall amplifier output amplitude control No connection No connection Index amp (+) input terminal 3 HA13565F Block Diagram C105 VCC 14 R101 19 Hu 20 21 Hv 22 23 Hw 24 C102 25 17 C104 16 15 Rt2 Ct2 4 CEB 6 Time constant Vref2 0.63V Bias 3 Rt1 Ct1 AGC Index detection Vref1 0.175V Current control + – + – + – w OTSD 11 C106 9 W 10 v u Soft switch matrix U 13 18 VCC C101 V 12 Rnf 5 INDEX output RPM select 2 H : 360rpm L : 300rpm CLK 7 1MHz 1.6V FG 60ppr C103 28 1 + – FG amp. 27 NC 26 NC Discriminator Charge pump 8 C1 R2 C2 TAB 4 HA13565F Timing Chart Hall Amp. Input vs. Output Voltage and Current U + B-EMF 0 – V W U + Hall amp. input 0 – V W U + Output current 0 – V W U V W Output voltage 0 Note: 1. The input waveforms to the hall amp. should be sine waves with a third harmonic content of less than 20%. 5 HA13565F Input Detection Timing RPM Control Pin = L Magnetization reduced by 30% *1 + U phase hall amp. input Pin 19–Pin 20 0 – Pin 3 Hall amp. output *2 65 to 200mVpp + Index detection input 0 – Index detection output-1 *2 0 Index detection output-2 *2 0 Index detection output-3 *2 0 FG amp. output *2 0 6.67 to 10ms (@300rpm) *3 3.33ms (@300rpm) Index TC Pin 4 Vth2L 0 Burst adjustment Index output Pin 5 0 Note: 1. To generate the index output, one pole of the main magnetization must be reduced so that a difference of at least 30% is assured at the Hall amp. input. 2. These waveforms are shown to indicate the principles of operation, and are not actual measured waveforms. 3. Burst adjustment is started by the fall of the index detector output 3, and then, it ends by the third of fall of FG amp. output. 4. Incorrect pulses may be output immediately after (i.e., within about 200ms of) start-up. 5. If the reduction in the magnetization is inadequate, the index signal may not be generated. Also note that excessive modulation of the Hall amp. input can cause incorrect pulses to be generated. 6 HA13565F External Parts Part No. R2 R101 Rnf Rt1 Rt2 C1, C2 C101 C102 C103 C104 C105 C106 Ct1 Ct2 Recommended Value — — 0.33 Ω 1MΩ — — ≥0.1 µF 0.047 µF 0.47 µF ≥0.1 µF ≥0.1 µF 0.1 µF 0.1 µF — Purpose Integration constant Hall bias Spindle current detection and current limitation Index circuit Vth adjustment Index burst adjustment Integration constants Power supply bypass AGC filter FG amp. AC coupling Bias pumping Smoothing for bi.


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