HA13568AT Hitachi Semiconductor, HA13568AT Datasheet

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HA13568AT

Manufacturer Part Number
HA13568AT
Description
CD-ROM Combo Driver
Manufacturer
Hitachi Semiconductor
Datasheet
Description
The HA13568AT is combination of Spindle, Forcus, Tracking, Slide, Tray designed for CD-ROM and
have following functions and features.
Features
Functions
1.5 A sensorless spindle driver
0.5 A BTL focus driver
0.5 A BTL tracking driver
1.5 A H bridge slide motor driver
0.5 A H bridge tray motor driver
Over temperature shut down (OTSD)
Voltage regulator control circuit
Sensorless driver with self start
Soft switching drive
Snubberless
Low output saturation voltage
Direct PWM slide driver
CD-ROM Combo Driver
HA13568AT
ADE-207-261A (Z)
December 1998
2nd Edition

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HA13568AT Summary of contents

Page 1

... Description The HA13568AT is combination of Spindle, Forcus, Tracking, Slide, Tray designed for CD-ROM and have following functions and features. Features 1.5 A sensorless spindle driver 0.5 A BTL focus driver 0.5 A BTL tracking driver 1 bridge slide motor driver 0 bridge tray motor driver Over temperature shut down (OTSD) ...

Page 2

... HA13568AT Pin Arrangement GND 1 FCSREF 2 FCSIN 3 FCSRS 4 TRRRS 5 VFCS 6 FCSP 7 FCGND 8 FCSN 9 TRRP 10 TRRN 11 TRYP 12 TRYN 13 VSLD 14 SLGND 15 SLDN 16 SLDP 17 VBST RNF VSPN 25 WFIL 26 VFIL 27 GND GND 55 TRRREF 54 TRRIN TRYLIM 49 TRYR 48 TRYF ...

Page 3

... REFIN is applied, and brake when a DC voltage lower than REF is applied. 33 AGC For AGC. Holds the level used for IC internal processing fixed even if the B-EMF level fluctuates due to the rotation speed Spindle center tap 35 PC Spindle driver phase compensation HA13568AT 3 ...

Page 4

... HA13568AT Pin Description (cont) Pin No. Pin Name Function 36 PHASE Outputs the B-EMF zero cross phase. Open corrector. (See the timing chart) 37 BRKSEL To select the brake mode. Lo: Short brake, Hi: Reverse full brake (when forward torque input: BRKSEL = H) 38 VREGS Voltage regulator sense pin (VREGS ...

Page 5

... Vbst Current control OTSD Vbst Vfcs 2 Vbst Vfcs 2 Vbst 1.5AH bridge SLD control Vbst 0.5AH bridge CT3 TRYLIM TRYF TRYR Ct3 HA13568AT SPN Rnf RNF Bias B2 20 VBST 18 6 VFCS FCSP ...

Page 6

... HA13568AT Timing Chart 1. Start- Tc2 CT2 0 + Output current 0 (U phase) + Output current 0 (V phase) + Output current 0 (W phase) PHASE 0 B-EMF Mask period Note: Tc2 is as follows. 8 (Vhct2 Vlct2) Rt Ct2 Tc2 = Vrt Where, Vhct2 : CT2 pin high voltage (See electrical characteristics) ...

Page 7

... Acceleration (switching mode Reverse start-up 0 voltage B-EMF PHASE 0 + Output current 0 (U phase) + Output current 0 (V phase) + Output current 0 (W phase) 3. Running (soft switching mode Reverse start-up 0 voltage B-EMF PHASE 0 Output voltage (U phase Output current 0 (U phase HA13568AT 7 ...

Page 8

... HA13568AT Truth Table Table 1 Overall CE OTSD SPN Driver OFF ON Note: X: Option impedance Table 2 SPN Driver BRKSEL Note: X: Option impedance Table 3 TRY Driver TRYF TRYR Note impedance 8 FCS Driver TRR Driver ...

Page 9

... FCSREF TRRRS R112 TRRIN TRRN R113 FCGND TRRREF VSLD SLDIN SLDP C110 SLDLIM SLDN Ct3 CT3 TRYP TRYF TRYN TRYR SLGND TRYLIM TAB HA13568AT +12V C101 CT U SPN V W Rnf C108 B1 C106 B2 C107 +5V R103 FCS C111 R104 TRR C112 R106 M SLD ...

Page 10

... HA13568AT 2. FCS, TRR voltage drive R110 FO R111 DSP R112 TO R113 REF Note: Other pins have the same connections as those used in application 1. 3. When used at a voltage other than 3.3 V with a voltage regulator (Vout = 3.3 to Vcc – Vcc (5V or 12V) Vout Note: Other pins have the same connections as those used in application 1. ...

Page 11

... SPN driver phase compensation Filter for SPN control input Filter for SLD control input To stop FCS block oscillation To stop TRR block oscillation To stop FCS block oscillation To stop TRR block oscillation for Voltage regulator smoothing HA13568AT Note ...

Page 12

... HA13568AT External Components (cont) Reccomended Reccomended Parts No. Value Range Ct1 150 pF 120 pF Ct2 0.033 F Ct3 470 pF 390 pF Q1 Note: 1. The output current maximum value Iospnmax of SPN driver is controlled according to the following equation. However, Vspncl is the current limiter reference voltage. (See the electrical ...

Page 13

... Voltage drive Rin + R2 Current drive ((Rin + R2) Rs) Where Resistor of IC inside ( 30k ) R2 : Resistor of IC inside ( 7k ) Rin : Resistor value inserted in the input ( ) (R110 to R113 Current sense resistor ( ) 8. The output voltage Vout of voltage regulator is determined by the following equation. Rr1 Vout = 3 Rr2 HA13568AT 13 ...

Page 14

... HA13568AT Absolute Maximum Ratings ( Item Supplu voltage SPN supply voltage FCS & TRR supply voltage SLD & TRY supply voltage Input voltage SPN output current FCS & TRR & TRY output current SLD output current Power dissipation Junction temperature Storage temperature range Note: 1 ...

Page 15

... A Vce = 15 V — 1.25 1.75 V Iospn = 1.0 A 1.3 2 Vce = 15 V 238 265 292 mV Rnf = 0.25 9.6 12 14.4 k 9 — HA13568AT Applicable Pins Note VSS VSPN VFCS VSLD VSS VSPN VFCS VSLD VSS VSPN VFCS VSLD BRKSEL, CE, TRYF, TRYR PHASE RNF 2 FCSIN 15 ...

Page 16

... HA13568AT Electrical Characteristics ( Vss = 5 V, Vspn = 12 V, Vfcs = 5 V, Vsld = 12 V) (cont) Item Symbol FCS Output quiescent Vqfcs driver voltage Output offset Vosfcs voltage Output saturation Vsatfcs voltage Voltage gain Gvfcs Gain band width Bfcs TRR Input resistance Rintrr driver ...

Page 17

... SLDIN = REFIN 8.5 12.2 — mA VREGS = 4 V, VREGF = 4 V 3.135 3.30 3.465 V 135 160 — C — 50 — C HA13568AT Applicable Pins Note VCTL, 2 REFIN RNF VCTL UFIL, VFIL, WFIL Vss + Vss + CT1 CT2 SLDIN SLDLIM ...

Page 18

... HA13568AT Note: 1. The output saturation voltage is the sum of the upper and lower saturation voltages. 2. See figure 1. Where, Vrnf Gctl = 20 log Vctl 3. Where, Vfcsp + Vfcsn Vqfcs = 2 Vtrrp + Vtrrn Vqtrr = 2 4. See figure 2. Where, Vfcsp Gvfcs = 20 log Vfcsin Vtrrp Gvtrr = 20 log Vtrrin 5. The circuit operates in soft switching drive mode only when the control input (Vctl) is lower than ...

Page 19

... See figure 4. Where, D D/V = Vin 8. Design guide only. 9. Vlimtry = VTRYP – VTRYLIM, or VTRYN – VTRYLIM SLDP = PWM SLDN = H 100 Vref 0 Figure 4 HA13568AT SLDP = H SLDN = PWM D Vin Vinsld (V) 19 ...

Page 20

... HA13568AT Reference Data SPN Driver Output Saturation Voltage vs. Output Current 0.5 Output Current Iospn (A) SLD Driver Output Saturation Voltage vs. Output Current 0.5 Output Current Iosld (A) TRY Driver Output Saturation Voltage vs. Output Current 0.2 Output Current Iotry (A) 20 FCS Driver Output Saturation Voltage vs ...

Page 21

... Package Dimensions Preliminary 14.2 Max 56 Top view 1 +0.04 0.21 0.05 +0.03 0.19 0.05 0.65 Max 0.08 1 Under view 56 14 0.50 0.08 M 8.10 0.15 (7. Hitachi Code JEDEC EIAJ Weight (reference value) HA13568AT Unit 0.50 0.1 TTP-56DT 0. ...

Page 22

... HA13568AT Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document ...

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