View TB9060FN_1874731.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TB9060FN 2002-09-11 1 toshiba cmos digital integrated circuit silicon monolithic TB9060FN 3-phase full-wave sensorless controller for brushless dc motors the TB9060FN is a 3-phase full-wave sensorless controller for brushless dc motors. it is capable of controlling voltage by pwm signal input. when combined with various drive circuits, it can be used for various types of motors. features 3-phase full-wave sensorless drive pwm control (pwm signal is applied externally.) turn-on signal output current: 20 ma overcurrent protection function forward/reverse modes lead angle control function (0, 7.5, 15 and 30) lap turn-on function two types of pwm output (upper pwm and upper/lower alternate pwm) rotational speed sensing function weight: 0.10 g (typ.) preliminar y
TB9060FN 2002-09-11 2 block diagram pin assignment turn-on signal forming circuit position detection circuit overcurrent protection circuit timing control clock generator circuit rotation instruction circuit lead angle setting circuit pwm control out_up out_vp out_wp out_un out_vn out_wn out_fg oc wave v dd test gnd sel_bit0 sel_bit1 sel_lap sel_out pwm cw_ccw la0 la1 xtin xt 6 7 9 5 3 4 1 2 11 10 13 12 8 15 16 17 19 20 21 14 23 24 24 23 22 21 20 19 18 1 2 3 4 5 6 7 17 16 15 14 13 8 9 10 11 12 la0 la1 pwm cw_ccw sel_out sel_bit0 sel_bit1 test sel_lap xt xtin gnd wave oc nc out_wn out_vn out_un nc out_wp out_vp out_up out_fg v dd TB9060FN
TB9060FN 2002-09-11 3 pin description pin no. symbol i/o description 1 la0 i 2 la1 i lead angle setting signal input pin ? la0 low, la1 low: lead angle 0 ? la0 high, la1 low: lead angle 7.5 ? la0 low, la1 high: lead angle 15 ? la0 high, la1 high: lead angle 30 ? built-in pull-down resistor (100 k ) 3 pwm i pwm signal input pin ? applies active low pwm signal ? built-in pull-up resistor (100 k ) ? disables input of duty-100% (low) signal high for 250 ns or longer is required. 4 cw_ccw i rotation direction signal input pin ? high: reverse (u w v) ? low, open: forward (u v w) ? built-in pull-down resistor (100 k ) 5 sel_out i pin to select the synthesis method of turn-on signal and pwm signal ? low: upper pwm ? high: upper/lower alternate pwm ? built-in pull-down resistor (100 k ) 6 sel_bit0 i 7 sel_bit1 i the number of counter bit (within the ic) select pin the forced commutation frequency at the time of start is determined by the resonator?s frequency and the number of counter bit. ? sel_bit0 high, sel_bit1 high: 16 bits ? sel_bit0 low, sel_bit1 high: 14 bits ? sel_bit0 high, sel_bit1 low: 12 bits ? sel_bit0: built-in pull-down resistor (100 k ), sel_bit1: built-in pull-up resistor (100 k ) 8 test i test pin ? built-in pull down resistor (10 k ) please connect this pin to gnd in your application. 9 sel_lap i lap turn-on select pin ? low: lap turn-on ? high: 120 turn-on ? built-in pull-up resistor (100 k ) 10 xt 11 xtin resonator connecting pin ? selects starting commutation frequency. starting commutation frequency f st resonator frequency f xt /(6 2 (bit 3) ) bit: the number of counter bit which is decided by sel_bit0 and sel_bit1. 12 gnd connected to ground.
TB9060FN 2002-09-11 4 pin no. symbol i/o description 13 v dd connected to 5-v power supply. 14 out_fg o rotation signal output pin ? motor is stopped or starting: low ? motor is in operation: the level is changed by electrical frequency of the motor. 15 out_up o u-phase upper turn-on signal output pin ? u-phase winding wire positive on/off switching pin ? on: low, off: high 16 out_vp o v-phase upper turn-on signal output pin ? v-phase winding wire positive on/off switching pin ? on: low, off: high 17 out_wp o w-phase upper turn-on signal output pin ? w-phase winding wire positive on/off switching pin ? on: low, off: high 18 nc not connected 19 out_un o u-phase lower turn-on signal output pin ? u-phase winding wire negative on/off switching pin ? on: high, off: low 20 out_vn o v-phase lower turn-on signal output pin ? v-phase winding wire negative on/off switching pin ? on: high, off: low 21 out_wn o w-phase lower turn-on signal output pin ? w-phase winding wire negative on/off switching pin ? on: high, off: low 22 nc not connected 23 oc i overcurrent signal input pin ? high on this pin can put constraints on the turn-on signal which is performing pwm control. ? built-in pull-up resistor (100 k ) 24 wave i position signal input pin ? applies majority logic synthesis signal of three-phase pin voltage. ? built-in pull-up resistor (100 k )
TB9060FN 2002-09-11 5 functional description 1. sensorless drive on receipt of pwm signal start instruction, turn-on signal for forced commutation (commutation irrespective of the motor?s rotor position) is driven onto pins 15 to 17 and pins 19 to 21, and the motor starts to rotate. the motor?s rotation causes induced voltage on winding wire pin for each phase. when signals indicating positive or negative for pin voltage (including induced voltage) for each phase are applied on respective position signal input pin, the turn-on signal for forced commutation is automatically switched to turn-on signal for position signal (induced voltage). thereafter turn-on signal is formed according to the induced voltage contained in the pin voltage so as to drive the brushless dc motor. sensorless drive timing charts (lead angles: 0 , 7.5 , 15 and 30 ) are shown below.
TB9060FN 2002-09-11 6 reference voltage (vn) figure 1 sensorless drive timing chart (lead angle: 0 ) acknowledge signal qs (within the ic) u v w vv vw pin voltage vu mode position signal pu pv pw ps timer 1 turn-on signal timer 2 timer 3 a f e d c b a the ps is squared to generate qs. the waveform of the reference voltage (vn) is compared with that of pin voltage (vu, vv and vw) to generate pu, pv and pw. ps is derived by the taking of a majority vote from pu, pv and pw. t t/2 3t/4 zero-cross point is detected after the 3t/4 period. zero-cross detection period 30 30 delay time is set for t/2 by timer 2 based on t cycle of timer 1. period during which an inductive voltage is not detected is set for 3t/4 by timer 3 based on t cycle of timer 1. t
TB9060FN 2002-09-11 7 reference voltage (vn) 37.5 22.5 figure 2 sensorless drive timing chart (lead angle: 7.5 ) delay time is set for t/2 7.5 by timer 2 based on t cycle of timer 1. the ps is squared to generate qs. the waveform of the reference voltage (vn) is compared with that of pin voltage (vu, vv and vw) to generate pu, pv and pw. ps is derived by the taking of a majority vote from pu, pv and pw. a f e d c b a t/2-7.5 t 3t/4 zero-cross point is detected after the 3t/4 period. zero-cross detection period period during which an inductive voltage is not detected is set for 3t/4 by timer 3 based on t cycle of timer 1. acknowledge signal qs (within the ic) u v w vv vw pin voltage vu mode position signal pu pv pw ps timer 1 turn-on signal timer 2 timer 3
TB9060FN 2002-09-11 8 figure 3 sensorless drive timing chart (lead angle: 15 ) reference voltage (vn) vv vu pu pv ps acknowledge signal qs (within the ic) u v w vw pin voltage mode position signal pw timer 1 turn-on signal timer 2 timer 3 the ps is squared to generate qs. the waveform of the reference voltage (vn) is compared with that of pin voltage (vu, vv and vw) to generate pu, pv and pw. ps is derived by the taking of a majority vote from pu, pv and pw. t t/2-15 t 3t/4 zero-cross p oint is detected after the 3t/4 p eriod. zero-cross detection period 45 15 delay time is set for t/2 15 by timer 2 based on t cycle of timer 1. period during which an inductive voltage is not detected is set for 3t/4 by timer 3 based on t cycle of timer 1. a f e d c b a
TB9060FN 2002-09-11 9 figure 4 sensorless drive timing chart (lead angle: 30 ) reference voltage (vn) the ps is squared to generate qs. the waveform of the reference voltage (vn) is compared with that of pin voltage (vu, vv and vw) to generate pu, pv and pw. ps is derived by the taking of a majority vote from pu, pv and pw. a f e d c b a t/2-30 3t/4 zero-cross p oint is detected after the 3t/4 p eriod. zero-cross detection period f 60 delay time is set for t/2 30 by timer 2 based on t cycle of timer 1. period during which an inductive voltage is not detected is set for 3t/4 by timer 3 based on t cycle of timer 1. vv vu pu pv ps acknowledge signal qs (within the ic) u v w vw pin voltage mode position signal pw timer 1 turn-on signal timer 2 timer 3
TB9060FN 2002-09-11 10 2. starting commutation frequency (resonator pin and counter bit select pin) the forced commutation frequency at the time of start is determined by the resonator?s frequency and the number of counter bit (within the ic). sel_bit0 high, sel_bit1 high: bit 16 sel_bit0 low, sel_bit1 high: bit 14 sel_bit0 high, sel_bit1 low: bit 12 starting commutation frequency f st resonator frequency f xt /(6 2 (bit 3) ) (bit: the number of counter bit which is decided by sel_bit0 and sel_bit1.) the forced commutation frequency at the time of start can be adjusted using inertia of the motor and load. the forced commutation frequency should be set higher as the number of magnetic poles increases. the forced commutation frequency should be set lower as the inertia of the load increases. 2.1 forced commutation pattern forced commutation is performed at the timings as shown below according to the state of cw_ccw. the commutation pattern immediately after the motor starts is always the same. (1) forward rotation (cw_ccw low) (2) reverse rotation (cw_ccw high) electrical degree u-phase output voltage v-phase output voltage w-phase output voltage start 30 60 h m h l l m h h mm l l h h l l m m 60 60 60 60 u-phase output voltage v-phase output voltage w-phase output voltage start 30 60 h h h m h h l l h l l m mm l l m m 60 60 60 60 electrical degree
TB9060FN 2002-09-11 11 3. pwm control pwm signal can be reflected in turn-on signal by applying pwm signal externally. the frequency of the pwm signal shoud be set adequately high with regard to the electrical frequency of the motor and in accordance to the switching characteristics of the drive circuit. because positional detection is performed on the falling edges of pwm signal, positional detection cannot be performed with 0% duty or 100% duty. the voltage applied to the motor is duty 100% because of the storage time of the drive circuit even if the duty is 99%. duty (max) duty (min) 250 ns 250 ns
TB9060FN 2002-09-11 12 4. selecting pwm output form pwm output form can be selected using sel_out. sel_out high upper turn-on signal lower turn-on signal output voltage sel_out low upper turn-on signal lower turn-on signal output voltage
TB9060FN 2002-09-11 13 5. positional variation since positional detection is performed in synchronization with pwm signal, positional variation occurs in connection with the frequency of pwm signal. be especially careful when the ic is used for high-speed motors. variation is calculated by detecting at two consecutive rising edges of pwm signal. 1/f p detection time variation 2/f p f p : pwm frequency pwm signal pin voltage reference voltage pin voltage position signal ideal detection timing second detection a ctual detection timing first detection
TB9060FN 2002-09-11 14 6. lead angle control the lead angle is 0 during the starting forced commutation and when normal commutation is started, automatically changes to the lead angle which has been set using la0 and la1. however, if both la0 and la1 are set high, the lead angle is 30 in the starting forced commutation as well as in natural commutation. 7. lap turn-on control when sel_lap high, the turn-on degree is 120. when sel_lap low, lap turn-on mode starts. in lap turn-on mode, the time between zero-cross point and the 120 turn-on timing becomes longer (shaded area in the below chart) so as to create some overlap when switching turn on signals. the lap time differs depending on the lead angle setting. (3) lead angle 15 out_wn out_vn out_wp induced voltage turn-on signal (1) lead angle: 0 out_up out_un out _ vp out _ vn out_wp out_wn (2) lead angle 7.5 out _ up out _ un out_vp out_up out_un out_vp out_vn out _ wp out _ wn (4) lead angle 30 out_up out_un out _ vp out _ vn out_wp out_wn u v w 30 22.5 15 (3) lead angle 15 out _ wn out_vn out _ wp (1) lead angle: 0 out _ up out _ un out_vp out_vn out_wp out_wn (2) lead angle 7.5 out_up out_un out_vp out_up out_un out _ vp out _ vn out_wp out_wn (4) lead angle 30 out _ up out _ un out_vp out_vn out_wp out_wn induced voltage turn-on signal u v w lap turn-on area
TB9060FN 2002-09-11 15 8. start/stop control start/stop is controlled using pwm signal input pin. a stop is acknowledged when pwm signal duty is 0, and a start is acknowledged when on-signal of a frequency 2 times higher than the resonator frequency or even higher is applied successively. timing chart note: take sufficient care for noise on pwm signal input pin. 9. rotation signal monitor function the rotation signal that senses rotational speed and indicates errors including motor lock is driven onto the out_fg pin. low voltage is driven onto the pin at forced commutation of starting and stopping the motor. after natural commutation (position signal is detected) is performed for 480 electrical degrees, the rotation signal in synchronization with the u-phase position detection result is driven onto the pin. if motor lock occurs due to overload during rotation, the forced commutation of starting the motor is performed and low voltage is driven onto the pin. it is possible to determine an error from the relationship between duty cycle of pwm signal and rotation frequency. 10. pull-out of synchronism if you do not receive the out_fg output at the specified frequency while monitoring the rotation signal (out_fg output), please restart the TB9060FN. pwm signal detection timing start 512 cycle periods at the resonator frequency first detection second detection start pwm detection stop 512 cycle periods at the resonator frequency first detection second detection and stop 2 cycle periods or more at the resonator frequency position signal rotation signal out_fg u-phase pin voltage 480 electrical degrees
TB9060FN 2002-09-11 16 maximum ratings (ta 25c) characteristics symbol rating unit power supply voltage v dd 6.0 v input voltage v in 0.2~v dd 0.2 v turn-on signal output current i out 20 ma power dissipation p d 850 mw operating temperature t opr 40~125 c storage temperature t stg 55~150 c lead temperature time t sol
s c recommended operating conditions (ta 40~125c) characteristics symbol test condition min typ. max unit power supply voltage v dd 4.5 5.0 5.5 v input voltage v in 0.2 v dd 0.2 v pwm frequency f pwm 16 khz oscillation frequency f osc 1.0 10 mhz
TB9060FN 2002-09-11 17 electrical characteristics (v dd 5 v, ta 40 to 125c) characteristics symbol test circuit test condition min typ. max unit static power supply current i dd pwm h, xtin h 0.1 0.3 ma dynamic power supply current i dd (opr) pwm 50%duty, xtin 4 mhz 1 3 ma i in-1 (h) v in 5 v, pwm, oc, wave sel_lap, sel_bit1 0 1 i in-1 (l) v in 0 v, pwm, oc, wave sel_lap, sel_bit1 100 50 i in-2 (h) v in 5 v, cw_ccw, la0, la1, sel_out, sel_bit0 50 100 input current i in-2 (l) v in 0 v, cw_ccw, la0, la1, sel_out, sel_bit0 1 0 a v in (h) 4.0 v dd input voltage v in (l) gnd 1.0 v input hysteresis voltage v h pwm, oc, sel_lap cw_ccw, wave, la0 la1, sel_out sel_bit0, sel_bit1 0.6 v v o-1 (h) i oh 1ma out_up, out_vp, out_wp 4.0 v dd v o-1 (l) i ol 20 ma out_up, out_vp, out_wp gnd 0.7 v o-2 (h) i oh 20 ma out_un, out_vn, out_wn 3.8 v dd v o-2 (l) i ol 1 ma out_un, out_vn, out_wn gnd 0.7 v v o-3 (h) i oh 1 ma, out_fg 4.0 v dd output voltage v o-3 (l) i ol 1 ma, out_fg gnd 0.7 i l (h) v dd 5.5 v, v out 0 v out_up, out_vp, out_wp out_un, out_vn, out_wn out_fg 0 15 output leak current i l (l) v dd 5.5 v v out 5.5 v out_up, out_vp, out_wp out_un, out_vn, out_wn out_fg 0 15 a t plh 0.5 1 output delay time t phl pwm output 0.5 1 s note1: output delay time test waveforms 50 50 pwm in p ut pwm output (out_up, out_vp,out_wp) tplh 5 v gnd v oh v ol tphl 50 50 50 50 pwm input tplh 5 v gnd v oh v ol tphl 50 50 pwm output (out_un, out_vn,out_wn)
TB9060FN 2002-09-11 18 application circuit example note 2: take enough care in designing output v dd line and ground line to avoid short circuit between outputs, v dd fault or ground fault which may cause the ic to break down. note 3: the above application circuit and values mentioned are just an example for reference. since the values may vary depending on the motor to be used, appropriate values must be determined through experiments before using the device. note 4: test pin is only used for factory test, so connect it to ground in application. 200 ta75393p 5 v h/l h/l h/l h/l 4 mhz ta75393p 1 k sel_lap sel_out la1 la0 cw_ccw pwm xt xtin out_up out_un out_vp out_vn out_wp out_wn gnd TB9060FN v m 100 k 3 1 22 pf 10 k 1 k 0.01 f 0.01 f 3 k 10 k 100 k 100 k h/l h/l sel_bit1 sel_bit0 oc wave out_fg test v dd cpu 0.1 100 ta75393p 1 k 0.01 f 0.01 f 3 k 10 k 1 k 200 m
TB9060FN 2002-09-11 19 package dimensions weight: 0.10 g (typ.)
TB9060FN 2002-09-11 20 toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the buyer, when utilizing toshiba products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within specified operating ranges as set forth in the most recent toshiba products specifications. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semiconductor devices,? or ?toshiba semiconductor reliability handbook? etc.. the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba corporation for any infringements of intellectual property or other rights of the third parties which may result from its use. no license is granted by implication or otherwise under any intellectual property or other rights of toshiba corporation or others. the information contained herein is subject to change without notice. 000707 eaa_s restrictions on product use

▲Up To Search▲

Price & Availability of TB9060FN

	To Download TB9060FN Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .