OM5193 Philips Semiconductors, OM5193 Datasheet
OM5193
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OM5193 Summary of contents
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... DATA SHEET OM5193H Disk drive spindle and VCM with servo controller Product specification File under Integrated Circuits, IC11 INTEGRATED CIRCUITS 1998 Nov 02 ...
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... Power supply isolation 8.17.1 External isolation diode 8.17.2 External power FET 8.18 Thermal behaviour 1998 Nov 02 9 LIMITING VALUES 10 HANDLING 11 THERMAL CHARACTERISTICS 12 CHARACTERISTICS 13 APPLICATION INFORMATION 14 PACKAGE OUTLINE 15 SOLDERING 15.1 Introduction 15.2 Reflow soldering 15.3 Wave soldering 15.4 Repairing soldered joints 16 DEFINITIONS 17 LIFE SUPPORT APPLICATIONS 2 Product specification OM5193H ...
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... GENERAL DESCRIPTION 3.1 Overview The OM5193H is a combination of a voice coil motor and a spindle motor driver with embedded servo controller designed for use in disk drives. Configuration and control registers are set via a 3-wire serial port running MHz to interface commonly to a microcontroller or a digital signal processor ...
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... Spindle and voice coil motor The OM5193H drives a 3-phase brushless, sensorless DC spindle motor and a voice coil motor. Spindle and voice coil motor power stages with low R and high current capability are suitable for mid-end and low-end 12 V disk drives ...
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... SPOUT I VCM current VCMRUN 5 ORDERING INFORMATION TYPE NUMBER NAME OM5193H QFP80 1998 Nov 02 PARAMETER PACKAGE DESCRIPTION plastic quad flat package; 80 leads (lead length 1.95 mm); body Product specification OM5193H MIN. TYP. MAX. UNIT 4.5 5.0 5.5 V 4.5 5.0 5.5 V 10.8 12.0 13.2 V 1.9 A 1.5 A VERSION SOT318-2 ...
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... Philips Semiconductors Disk drive spindle and VCM with servo controller 6 BLOCK DIAGRAMS Figures and 4 provide block diagrams of the OM5193H servo and motor control (top level diagram, servo controller, spindle motor driver and voice coil motor driver). handbook, full pagewidth CLAMP 10 ...
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... V DDA1 ADC[4]/TEMP REF2V5 Fig.2 Block diagram, servo controller. 7 Product specification POWER-ON RESET COMA COMB COMC ACROSS BCROSS CCROSS 34 10-BIT VCM DAC OM5193H 2.5 V BANDGAP 43 VCM switch for VCM DDD SEEKSELECT AGND DGND TRACKFWSELECT OM5193H DACOUT VCMIN MGM973 ...
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... Fig.3 Block diagram, spindle motor driver CAPY PWRBIAS1 PWRBIAS2 SWITCH GATE OM5193H 10 CLAMP1 55 CLAMP2 56 CLAMP3 72 MOTA 74 MOTB 3 MOTC 9 CT BEMF COMPARATOR 76 MOTSENSE2 ACROSS CCROSS BCROSS MOTSENSE3 73 to commutation logic 2 MOTSENSE1/ SPSENSEH R SPSENSE Product specification OM5193H V DDA2POWER MGM974 ...
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... PRE ERROR DRIVER 12 V slave GND SWITCH PRE ERROR ERROR DRIVER V ref (to spindle) SENSE BANDGAP 30 ADC[2]/SOUT Fig.4 Block diagram, voice coil motor driver. 10 CLAMP1 55 CLAMP2 56 CLAMP3 8 SWITCHGATE 62 IVCM 71 GNDVCM1 68 GNDVCM2 OM5193H 63 GNDVCM3 M 69 NIVCM 53 VCMSENSEL R VCMSENSE 52 VCMSENSEH MGM975 54 GNDV ...
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... A1 amplifier. analog input non-inverting input of the A1 amplifier analog input inverting input of the A2 amplifier analog input non-inverting input of the A2 amplifier ground servo analog ground analog output 2.5 V bandgap reference voltage 10 Product specification OM5193H DESCRIPTION ...
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... Product specification OM5193H DESCRIPTION ...
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... SPCCOUT 14 V DDA2 15 BSTCP1 16 BSTCP2 17 CAPY 18 POR 19 V DDD 20 SDEN 21 SDATA 22 SCLOCK 23 CLOCK 24 1998 Nov 02 OM5193H Fig.5 Pin configuration. 12 Product specification OM5193H HEATSINK 64 63 GNDVCM3 62 IVCM 61 HEATSINK 60 HEATSINK HEATSINK 59 58 HEATSINK 57 PWRBIAS1 CLAMP3 56 55 CLAMP2 GNDV 54 53 VCMSENSEL 52 VCMSENSEH 51 PARKVOLT ...
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... The serial interface is a 3-wire bidirectional port for writing and reading data to and from the internal registers of the OM5193H. Each read or write will be composed of 16 bits. For data transfer SDEN is brought LOW, serial data is presented at the SDATA pin, and a serial clock is applied to the SCLOCK pin ...
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... DAC DAC DAC DAC (5) (4) (3) (2) Blank 1 Blank ADC ADC ADC ADC (5) (4) (3) (2) Ccross Bcross Across OM5193H UNIT MHz clock cycles DAC DAC (1) ( ADC ADC (1) (0) ...
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... The VCM DAC output is in high-impedance mode, the spindle is in the brake mode and the VCM is in the precharge mode. Only after POR is HIGH and register#1 (6) is set to logic 1, OM5193H is ready to be functional. When register#1 (6) goes HIGH, the VCM DAC outputs the 2.5 V reference voltage. ...
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... A maximum commutation delay can be set via the serial port. The time is a function of both the external clock frequency, the individual register prescalers and the time programmed into the registers. Figure 7 shows a typical motor commutation timing diagram. 16 Product specification OM5193H ...
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... If Zc programmed Comdelim value, the next timer value will be Zc programmed Comdelim value, the next timer value will be the programmed Comdelim value divided Product specification OM5193H Commutation delay commutation Zc 3 true zero crossing MGM978 occurs or when the Watchdog counter 2 ) has occurred ...
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... Product specification internalSpindleClock CLOCK CLOCK CLOCK 1 f 128 Blank 1 Blank 2 MSB + 1 LSB – – = --------------------------------------------------------------------------- - internalSpindleClock MSB + 1 LSB 2 2 – LSB 1) to obtain maxValue 1) are set internally to OM5193H CLOCK 1 0 MGL481 1 – (3) ...
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... Comdelim Fig.9 Up-counter TIMER 2. 19 MSB CLOCK STEP MAX. STEP 8.53 s 538 ms 17.1 s 68.3 s 4.30 ms 137 s 273 s 17.2 ms 546 2.202 MGL482 Product specification OM5193H BITS 128 CLOCK MAX. 1.08 ms 8.60 ms 34.4 ms 4.404 s ...
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... MHz CLOCK CLOCKOUT/PRESCALER CLOCK STEP OFFSET MAX. (ms (ms) 4.27 3.2 8.74 2.13 1.6 4.37 20 Product specification MSB CLOCK STEP OFFSET MAX. STEP ( (ms 8.53 6.4 17.48 17.1 4.27 3.2 8.74 8.53 divided by 2 after the last Zcross OM5193H (4) (5) (6) (7) (8) (9) BITS 128 CLOCK OFFSET MAX (ms) 12.8 35 6.4 17.48 ...
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... A/D conversion is started by writing to serial port register#0. The address of the channel is decoded from the three LSBs in register 0]. Then the OM5193H selects the addressed analog channel, samples and holds the analog input and starts the analog to digital conversion. The conversion result is obtained by reading the serial port register#0 ...
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... DAC mode; should be at logic 0 under normal operating conditions selects the analog input range of the ADC range 1 range selects the automatic conversion option; see details in Table 13 selects the automatic channel increment option; see details in Table 13 selects the stand-alone op-amps op-amps activated 1 = op-amps deactivated OM5193H ...
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... CLOCK ) divided by 4 (clockDivider = 4) CLOCK MASTER CLOCK = 20 MHz DIVISION DIVISION 5 Product specification OM5193H DESCRIPTION MASTER CLOCK = 30 MHz DIVISION DIVISION 2.6 s 3.4 s OUTPUT VOLTAGE 1.5 V 2.5 V 3.5 V (10) DIVISION ...
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... The voltage on pin CAPY is typically 19.2 V. Figure 10 illustrates the charge pump block diagram. V DDA2 COMPARATOR OSCILLATOR 200 kHz reference Fig.10 Charge pump voltage generator. 24 Product specification Charge pump voltage CAPY BSTCP2 C CAPX BSTCP1 C CAPY GNDS MGM979 OM5193H DDA2 ...
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... SPCC With R = 0.25 : SPSENSE I = 0.4 V SPRUN SPCC The maximum start-up current is I SPCC signal Figure 11 illustrates the spindle current control loop. (11) 25 Product specification OM5193H is sensed by an external of the v I (12) SPRUN V SPSENSEH ------------------------------ - (13) V SPOUT (14) provided by the control at the specified running ds(on) – ...
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... HIGH 0 LOW float 0 float LOW 1 HIGH LOW 1 HIGH float 1 float HIGH (1) 1 F_L F_L 0 float float 26 Product specification OM5193H V CONTROL CONTROL AMPLIFIER 0.25 V OFFSET SPCCOUT MOTC float HIGH HIGH float LOW LOW (1) (1) F_L SLEEP float Spindle high-impedance MGM980 STATE ...
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... Figure 13 presents the VCM sense amplifier. 1998 Nov Fig.12 Input commutations to output drivers ref2V5 V + ref2V5 27 Product specification VCMSENSE of the sense amplifier is typically 4. v OM5193H MGM981 enables the (17) ...
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... VCMSENSE VCMRUN = -------------------------------------------------------------------------- - VCMRUN SENSE AMPLIFIER G a NIVCM ADC[2]/SOUT Fig.14 VCM transconductance gain schematic. 1 -------------------------------------------- - VCMSENSE 28 ADC[2]/SOUT 4R MGM982 sout REF2V5 ERROR AMPLIFIER to power drivers VCMIN DACOUT MGM983 Product specification OM5193H of the sense amplifier (18) (19) ...
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... R o VCMIN to VCM drivers MGM984 = 12.55 V. This value is independent BDC of typically 2.2 V. BDT park time duration (or brake delay time duration) BDT V BDC = In ------------ - V BDT C R BRAKED BRAKED and R are respectively the capacitor and BRAKED = 330 nF and R BRAKED = 400 ms. OM5193H (21) (22) = 650 k , BRAKED ...
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... The NIVCM low-side power driver is set off during VCM , the BDT precharge. This is convenient for actuators with a magnetic latch. The park circuit is powered off during VCM precharge with the actuator latched. 30 Product specification OM5193H FAULT IVCM NIVCM GNDVCM ACTUATOR R COIL R VCMSENSE MGM985 ...
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... When the heads are parked, the motor has to be braked in order to guarantee heads reliability. During the brake sequence, the heads land on a dedicated area of the disk. The OM5193H integrates a highly efficient, low cost brake circuit guaranteed to be functional in case of power loss and thermal shutdown with a short time brake duration thus minimizing friction of the heads on the landing zone ...
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... V. The t following equation: C CPOR t = ----------------------------------------------- - C where V PORREF The value of the t value. that C 32 Product specification OM5193H R BRAKEP (optional) C BRAKEP C BRAKED R BRAKED MGM987 capacitor is charged with a typically 2.7 A time is set by the C V PORREF I CPOR = 2.55 V and I = 2.5 A typically. CPOR ...
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... CHK5 and CHK12 pins to filter the noise on CHK5 and CHK12 pins caused by spikes on the power supplies; see Fig.21. 1998 Nov 02 V hys Fig.19 Power-on reset timing. V DDA1 R H5 CHK5 POWER-ON RESET R L5 GNDS MGM989 Fig.20 CHK5 and CHK12 pins. 33 Product specification OM5193H MGM988 threshold DDA2 R H12 CHK12 R L12 ...
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... Table 5) and in Section “10-bit ADC with 7 analog inputs” (see also Table 12). If default values have to be loaded when POR is LOW, at least one clock pulse is needed to load the registers with default values. 34 Product specification OM5193H t V ref ...
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... CLOCK Fig.22 Initialization of the registers when POR is LOW. 8.16 Thermal monitor and shutdown The OM5193H is provided with both a temperature monitor and a thermal shutdown circuit. The device is protected against over-temperature by the thermal shutdown circuit. When the temperature of the chip exceeds 150 C, the device is automatically set to the brake-after-park mode ...
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... E FET XTERNAL POWER For higher current applications, the diode can be replaced by a N-channel FET. The OM5193H contains an output to drive this N-channel FET. To prevent the brake and park currents from flowing back to V DDA2 must be connected to V and the drain to the CLAMP DDA2 line ...
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... MOS devices. 11 THERMAL CHARACTERISTICS SYMBOL R thermal resistance from junction to ambient th(j-a) Note 1. This is obtained with a thermally enhanced printed-circuit board tied to the bare casting assembly. 1998 Nov 02 PARAMETER PARAMETER 37 Product specification OM5193H MIN. MAX. 0.3 +6 0.3 +6 0.3 +13.5 0.3 +18 0.7 +18 ...
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... V = 2.5 V ref2V5 analog input at V ref2V5 1.5 to 3.5 V range range 7 relative to 1.4V at 00H I 1.5 to 3.5 V range range 80 relative to 0.6V at 00H I 1.5 to 3.5 V range range 80 38 Product specification OM5193H TYP. MAX. UNIT 5.0 5.5 V 5.0 5.5 V 12.0 13.2 V 12.0 13 ...
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... MHz; note note within 0.5 LSB 0.6V ref measured at code 00H: 10 relative to V ref2V5 relative to 1. code 00H relative to 0. code 00H 39 Product specification OM5193H TYP. MAX. UNIT +4 LSB +8 LSB +1 LSB +190 LSB 0 LSB 0.05 LSB/ C ...
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... V ; ref2V5(meas) only tested on wafer V divided by 1.39 ref3V5(meas ref2V5(meas) only tested on wafer note 6 note 6 0.01 note 6 switch closed; value and nominal supply voltages T < Product specification OM5193H TYP. MAX. UNIT + LSB +1 LSB 2 % 100 mV mV 1.504 1.596 V 2.507 2 ...
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... CMOS level, high-drive, protection to V and DDD DGND 2 mA push-pull DDA1 note 8 143 note 6 41 Product specification OM5193H TYP. MAX. V 0.5 V DDA1 1 +10 mV 100 nA V 0.5 V DDA1 V/ s 1.0 MHz ...
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... CHK12 open-circuit DDA2 CHK5 open-circuit DDD CHK12 short-circuited to 2.55 V CHK12 short-circuited to ground CHK5 short-circuited to V DDA1 CHK5 short-circuited to ground POR short-circuited to ground functional test running mode note 6 42 Product specification OM5193H MIN. TYP. MAX. 2.171 3.052 6.8 7.05 7.30 18.2 19.2 20.2 17 9.05 9.40 9.75 80 115 150 4.2 4.3 4 ...
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... SLEW open-loop; note 9 0. note 9 0.32 SLEW V = 1.25 V; 380 SPCC R = 0.25 SENSE I > SVDMOS only tested on wafer 10 note 6 only tested on wafer 9.8 note 6 only tested on wafer; 230 amb 43 Product specification OM5193H TYP. MAX. + +4.2 mV 0.5 mV 0.45 V 0.5 V 0.36 0.45 0.56 0.65 0.24 0.35 0.44 0.55 2. 400 ...
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... C amb I > SVDMOS 0 2.5 V 100 ref2V5 under all conditions 3 140 C; note 11 600 140 C; note VCMSENSEH VCMSENSEL 5 44 Product specification OM5193H TYP. MAX. UNIT 3 kHz + +10 mV 3.5 MHz MHz 1.15 1.25 0.45 0.55 0.65 0.75 0.35 0.45 0.55 ...
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... CLAMP V > V BRAKEDELAY BDT PARKVOLT BRAKEPOWER CLAMP V > V BRAKEDELAY BDT V > BRAKEDELAY BDT note 20 amb 45 Product specification OM5193H TYP. MAX. UNIT 5 100 dB dB 12.55 12.9 V 12. ...
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... Rds(on)(break) 46 MIN. TYP. 1.1 2.1 3.1 500 +500 0.24 0 DDD DDD BE 0.2 2.5 V. 512 – ref = 1.5 mH 100 pF force mV. sout O , force mV. sout O (T 25) without resistor. Product specification OM5193H MAX. UNIT 4 ...
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... VCM characteristics function of the VCM characteristics brake time = 10 s; speed = 5400 RPM BEMF = 8.2 V coil brake time = 10 s; speed = 5400 RPM BEMF = 8.2 V coil 47 Product specification OM5193H MIN. TYP. MAX. UNIT 100 200 k 0.25 130 ...
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... The description of the Power-On Reset (POR) circuit is given in Section “Power-on reset”. 2. The description of the spindle driver circuit is given in Section “Spindle driver”. 1998 Nov 02 CONDITIONS brake delay = 400 ms brake delay = 400 1.25 V; PARKVOLT CLAMP 48 Product specification OM5193H MIN. TYP. MAX. UNIT 330 nF 650 k 250 k ...
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... CHK12 47 C CHK12 CT 9 MOTA 72 MOTB 74 MOTC 3 MOTSENSE3 73 MOTSENSE2 76 MOTSENSE1/ 2 SPSENSEH GNDS/SPSENSEL 11 NIVCM 69 VCMSENSEL 53 R VCMSENSE VCMSENSEH 52 IVCM VCMCOMPRC C VCMCOMPRC R VCMSEEK R FEEDBACK OM5193H ( ( H12 (1) R L12 (1) spindle motor R SPSENSE voice M coil motor MGM993 ...
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... 0.45 0.25 20.1 14.1 24.2 0.8 0.30 0.14 19.9 13.9 23.6 REFERENCES JEDEC EIAJ 18.2 1.0 1.95 0.2 0.2 0.1 17.6 0.6 EUROPEAN PROJECTION Product specification OM5193H SOT318 detail X (1) ( 1.0 1 0.6 0.8 0 ISSUE DATE 95-02-04 97-08-01 ...
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... Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds 300 C. When using a dedicated tool, all other leads can be soldered in one operation within seconds between 270 and 320 C. 51 Product specification OM5193H ...
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... Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 1998 Nov 02 52 Product specification OM5193H ...
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... Philips Semiconductors Disk drive spindle and VCM with servo controller 1998 Nov 02 NOTES 53 Product specification OM5193H ...
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... Philips Semiconductors Disk drive spindle and VCM with servo controller 1998 Nov 02 NOTES 54 Product specification OM5193H ...
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... Philips Semiconductors Disk drive spindle and VCM with servo controller 1998 Nov 02 NOTES 55 Product specification OM5193H ...
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... Tel. +46 8 5985 2000, Fax. +46 8 5985 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2741 Fax. +41 1 488 3263 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2865, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel ...