TDA5341 Philips Semiconductors, TDA5341 Datasheet

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TDA5341

Manufacturer Part Number
TDA5341
Description
Brushless DC motor and VCM drive circuit with speed control
Manufacturer
Philips Semiconductors
Datasheet

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Product specification
File under Integrated Circuits, IC11
DATA SHEET
TDA5341
Brushless DC motor and VCM drive
circuit with speed control
INTEGRATED CIRCUITS
1997 Jul 10

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TDA5341 Summary of contents

Page 1

... DATA SHEET TDA5341 Brushless DC motor and VCM drive circuit with speed control Product specification File under Integrated Circuits, IC11 INTEGRATED CIRCUITS 1997 Jul 10 ...

Page 2

... Jul 10 APPLICATIONS Hard Disk Drive (HDD). GENERAL DESCRIPTION The TDA5341 is a BiCMOS integrated circuit used to drive brushless DC motors in full-wave mode. The device senses the rotor position using an EMF sensing technique and is ideally suited as a drive circuit for a hard disk drive motor ...

Page 3

... AFTER PARK 6 32 CHARGE PUMP 53 52 SENSE 51 AMPLIFIER 37 VCM 45 H-BRIDGE DD2 V DD3 DDD TDA5341 PRESET MOT1 MOT2 MOT3 MOT0 CLAMP1 CLAMP2 RESETOUT UVDIN1 UVDIN2 BRAKEDELAY AMPOUT AMPIN AMPIN FILTER SENSEOUT SENSEIN SENSEIN VCM VCM FB1 FB2 MGE817 ...

Page 4

... VCM+ 37 positive output of the VCM amplifier DATA 38 input data of the serial port (active HIGH) CLOCK 39 clock input signal to shift DATA into SERIALIN register (active HIGH power supply 3 for the actuator driver DD3 1997 Jul 10 DESCRIPTION 4 Product specification TDA5341 ...

Page 5

... CAPXA 61 external capacitor for the charge pump output CAPYA 62 external capacitor for the charge pump output CAPYB 63 external capacitor for the charge pump output V 64 power supply for the spindle motor drivers DD2 1997 Jul 10 DESCRIPTION 5 Product specification TDA5341 ...

Page 6

... AMPIN 6 MOT0 7 MOT2 8 9 FREDENA FG 10 BRAKE 11 TESTIN 12 TP1 13 V EE1 14 GAINSEL 1997 Jul 10 TDA5341 Fig.2 Pinning diagram. 6 Product specification TDA5341 48 ROSC 47 TP2 46 BRAKEDELAY 45 VCM 44 UVDIN1 43 RESETOUT 42 ENABLE V DDD 41 V DD3 40 39 CLOCK 38 DATA 37 VCM V ref 36 35 DPULSE ...

Page 7

... Speed control based on FLL technique Serial port DATAIN (24 bits) Friction reduction prior to spin-up. TDA5341 modes description The TDA5341 can be used in two main modes, depending on whether they are controlled or not. The ‘controlled modes’ (user commands) are executed by the TDA5341 without delay or priority treatment, either by software via the serial port or by hardware ...

Page 8

... F RICTION REDUCTION Pulling FREDENA HIGH activates the friction reduction mode of the TDA5341. In that mode, a clock signal fed via pin TESTIN will cause the MOT outputs to sequentially switch-on and switch-off at the same frequency and result, generate an AC spindle torque high enough to overcome the head stiction ...

Page 9

... The TDA5341 also contains a control amplifier, directly driving output amplifiers. The TDA5341 also provides access to the user of some of its internal test modes. Firstly, a PRESET mode can be used for prepositioning the three motor output drivers into a fixed state ...

Page 10

... Hz, thus CAPCDM = 7092/1600 = 4.43 (choose 4.7 nF) The other capacitor, CAPCDS, is used to repeat the same delay by charging and discharging with 20 A. The same value can be chosen as for CAPCDM. Figure 3 illustrates typical voltage waveforms. 10 Product specification TDA5341 : C1 6 7092 = ------------ - ms: Where ...

Page 11

... Example: If, after switching off, the voltage from a motor winding is reduced, in 3.5 ms, to within 10 mV (the offset of the EMF comparator), then the value of the required timing capacitor is given by 2.63 3.5 = 9.2 (choose 10 nF) Typical voltage waveforms are illustrated by Fig.4. voltage waveforms in normal running mode. MOT1 11 Product specification TDA5341 2.63t = m MGE821 ...

Page 12

... Generation of the tacho signal FG Motor control Current limiting Thermal protection. FG signal The FG signal is generated in the TDA5341 by using the zero-crossing of the motor EMF from the three motor windings and the commutation signal. Output FG switches from HIGH-to-LOW on all zero-crossings and LOW-to-HIGH on all commutations and can source more than 40 A and sink more than 1 ...

Page 13

... FB2 V CMIN2 V CMIN1 PREAMP V ref TDA5341 Fig.6 VCM section application diagram 110 VCM IN1 IN2 R + IN1 IN2 13 Product specification 1.5 V. actuator R s FB1 VCM VCM SENSEIN SENSEIN OUTPUT GAIN 11 SENSE AMP TDA5341 MGE825 ...

Page 14

... Serial port The serial port operates as follows: When ENABLE is HIGH, the serial port is disabled, which means the TDA5341 functions regardless of any change at pins DATA and CLOCK. When ENABLE is set LOW some set-up time before the falling edge of CLOCK, the serial port is enabled data is serially shifted into the 24-bit shift register on the falling edge of the CLOCK signal ...

Page 15

... DIV 6 8 The resulting error will be less than 0.04 rpm. 12 ROSC/MOTOR speed PARAMETER PARAMETER 15 Product specification – 7.5 33333 = ------------------------ = 3600 MIN. MAX. 5.5 0 0.25 +5.5 0 2.5 55 +150 0 +70 see Fig.7 VALUE TDA5341 UNIT UNIT 54 K/W ...

Page 16

... SAFE OPERATING AREA 100 Fig.7 Power derating curve. is not allowed unless otherwise specified. amb CONDITIONS after shut-down 16 Product specification MGE823 150 T amb ( C) MIN. TYP. MAX. 4.5 5.0 5.25 4.5 5.0 5.25 4.5 5.0 5.25 4.5 5.0 5. 1.4 2 130 140 150 2.5 TDA5341 UNIT ...

Page 17

... ILIM I = 100 A ILIM --------------- - ILIM 10000 note 1.2 V clamp 17 Product specification MIN. TYP. MAX. 0 6.8 9.2 11.6 3.4 +3.4 0.34 0. 1.15 1.25 1.35 2.43 2.51 2.60 0.01 1 100 5.5 3.5 1 2.5 9.0 9.9 10.8 4.5 6.0 7.5 7.0 5.5 4.0 0.20 0.30 2.20 TDA5341 UNIT 1 ...

Page 18

... CAPCP value is dependant of the powerless park and brake operations. 1997 Jul 10 CONDITIONS MIN 7.5 13 13.5 2.2 0.82 2. 1.1 0. Product specification TDA5341 TYP. MAX. UNIT 5.0 2 0 6.5 A 2.0 1.8 0.87 0.92 V 2.28 2. ...

Page 19

... C = 0.1 F; see Fig.9 see Fig.9 see Fig 0 8 UVDIN2 Fig.8 Reset mode threshold. 19 MIN. TYP. 2.3 1.7 2.4 2.55 2.75 1.280 1.315 1.340 0.5 +0.5 4.25 100 150 200 4 1.0 4 100 0.5 R1 MGE818 Product specification TDA5341 MAX. UNIT 1 ...

Page 20

... unless otherwise specified. amb CONDITIONS V = 1.9 to 2.6 V ref SENSEIN 20 Product specification W(min) MIN. TYP 250 +250 0.5 V 1.25 4.0 ref 250 +250 9.9 10.2 10 +66 20 1.9 2 TDA5341 PTH MGE819 MAX. UNIT MHz ...

Page 21

... CONDITIONS MIN 400 note GAINSEL = LOW GAINSEL = HIGH 5.25 V 0.4 DD 250 GAINSEL = LOW GAINSEL = HIGH 0. Product specification TDA5341 TYP. MAX. UNIT 0.8 1.0 V 1.15 1 0.75 V 2 0.8 V + MHz ...

Page 22

... C; unless otherwise specified. amb CONDITIONS 22 Product specification MIN. TYP. MAX. 3.5 +3.5 250 +250 25 1.7 2 0.7 4.3 MIN. TYP. MAX. 80 100 120 110 90 70 0.9 1.1 1 0.8 2.4 0 0.8 2.4 18 0.8 2 0.8 2.4 10 TDA5341 UNIT MHz V V UNIT MHz V V MHz V V MHz ...

Page 23

... ENABLE set-up time su1 t DATA set-up time su2 t DATA hold time h handbook, full pagewidth CLOCK t su1 ENABLE t su2 DATA SHIFTED DATA 1997 Jul 10 CONDITIONS I = 500 Fig.10 Timing diagram. 23 Product specification TDA5341 MIN. TYP. MAX. 0 MGE824 UNIT ...

Page 24

... CAPCP 27 CAPXA 61 CAPXB 59 CAPYA 62 CAPYB 63 CAPCDM 18 CAPCDS 19 CAPTI 2 CAPST 1 Fig.11 Application diagram of the TDA5341 in a hard disk drive. 1997 Jul DD1 V DD2 V DD3 DDD TDA5341 EED V EE1 V EE2 V EE3 V EE4 CLAMP1 CLAMP2 ...

Page 25

... 2.5 scale (1) ( 0.27 0.18 10.1 10.1 12.15 0.5 0.17 0.12 9.9 9.9 11.85 REFERENCES JEDEC EIAJ detail 12.15 0.75 0.69 1.0 0.2 0.12 11.85 0.45 0.59 EUROPEAN PROJECTION Product specification TDA5341 SOT314 (1) ( 1.45 1.45 7 0.1 o 1.05 1.05 0 ISSUE DATE 94-01-07 95-12-19 ...

Page 26

... 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. 26 Product specification TDA5341 ...

Page 27

... 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. 1997 Jul 10 27 Product specification TDA5341 ...

Page 28

... Tel. +46 8 632 2000, Fax. +46 8 632 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2686, Fax. +41 1 481 7730 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 ...

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