View FD036UT_7863273.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

fd036kt FD036UT sensorless 3-phase brushless dc motor driver this datasheet contains new product information. f eeling technology reserves the rights to modify the product specification without notice. no liability is assumed as a result of the use of t his product. no rights under any patent accompany t he sales of the product. rev1.3 sep. 24, 2008 p.1 feeling technology features pwm (pulse width modulation) speed control built-in fg(frequency generation) for rotation spe ed calculation, or rd(rotation detection) signal ou tput for rotation status monitoringsoft-switching technique to reduce vibration and acoustic noise thermal shutdown protection lock protection and auto-restart function selectable direction of rotation(FD036UT) low stand-by current in disable mode(FD036UT) general description fd036 is a sensorless 3-phase brushless dc motor dr iver. it senses the bemf(back-electromotive force) of the motor in rotation and provides corresponding commut ation current to the motor. the use of sensorless t echnology means no hall sensors are needed. the absence of th e hall-sensor makes the fabrication of the motor ea sier and is especially suitable for ultra-small motors since th e motor driver ic is placed outside the motor assem bly. block diagram fig.1
fd036kt FD036UT rev1.3 sep. 24, 2008 p.2 feeling technology 036kt ywv-ll 1 2 3 4 8 7 6 5 ct pwm vdd vout fg vss uout wout pin connection fig. 2 pin descriptions name i/o fd036kt FD036UT description vdd p 3 4 positive supply vss g 7 8 ground en i - 1 enable, high active uout o 6 7 driver output vout o 4 5 driver output wout o 5 6 driver output ct i 1 2 center tap voltage input fg o 8 10 frequency generation pwm i 2 3 pulse width modulation input for speed control fr i - 9 forward/reverse rotation direction selection legend: i=input, o=output, i/o=input/output, p=powe r supply, g=ground 036ut ywv-ll ct pwm vdd vout fg vss uout wout fr en 1 2 3 4 10 9 8 6 5 7
fd036kt FD036UT rev1.3 sep. 24, 2008 p.3 feeling technology marking distinguish 036kt ywv-ll lot number year (ex:2008 8) half month (ex:a,b,c ) mass production version 036ut ywv-ll lot number year (ex:2008 8) half month (ex:a,b,c ) mass production version
fd036kt FD036UT rev1.3 sep. 24, 2008 p.4 feeling technology functional descriptions pwm pwm(pulse-width modulation) is used for the speed c ontrol for fd036. 2 types of pwm input signals can be used : 1. voltage mode pwm : applying a constant(dc) voltage to the pwm pin and the fd036 will generate pwm pulses internally with the on h/(l+h) duty cycle ratio according to the diag ram below(fig.4), which can be utilized by the user to control the speed of the motor. the rotation speed will be higher if the voltage applied to the pwm pi n is higher. fig.4 2. pulse mode pwm : user can also apply pwm pulses directly to the pwm pin. the fd036 will pass this pulse to the coil dri ver with the original duty-cycle ratio. the rotation speed w ill be higher with a higher h/(l+h) ratio. note: (1) while using pulse mode pwm, the high value of the input pulse should be higher than vdd/2 and th e low value should be lower than vdd/7 (2) the lower-limit for the pwm pulse frequency is 200hz, and the recommended frequency range is in th e range of 25khz~30khz where the pwm input pulse does not generate additional acoustic noise. (3) the pwm pin contains an internal pull-up resi stor so the fd036 will rotate in full-speed(100% on ) when this pin is left un-connected(floating). soft-switching fd036 uses the soft-switching technique to reduce the vibration and acoustic noise during rotation. direction of rotation the direction of rotation can be selected by the se tting the input voltage of fr to vdd(forward) or vss(reverse). the fr pin contains an internal pul l-up resistor so the fd036 will rotate in the forw ard direction when this pin is left un-connected(floati ng). protection strategies for the coil driver 1. thermal shutdown fd036 will shutdown the driver when the ic temperat ure rises beyond 165 c. it would release the shutdown condition when the temperature drops below 140 c. 2. lock protection and auto-restart function fd036 will shutdown the driver when the rotor is bl ocked for a short period of time, which keeps the c oil from over-heated. it will try to restart the motor after the shutdown interval. vdd/2 vdd/7 vpwm on duty 100% 0%
fd036kt FD036UT rev1.3 sep. 24, 2008 p.5 feeling technology absolute maximum ratings parameter symbol conditions values unit min. typ. max. operating temperature t op - -20 85 storage temperature t st - -40 150 dc supply voltage v dd - -0.3 6.5 v supply current i dd - 6 ma continuous current i o(cont) 500 ma hold current i o(hold) 800 ma pwm voltage range v pwm_h >0.5vdd 6.5 v v pwm_l 0 <0.14vdd v fg sink current i fg_sink 25 ma junction temperature t j 150 power dissipation p d msop8 400 mw msop10 420 mw magnetic flux density b unlimited gauss ir-reflow lead temperature 10sec 260 255 5 o c 10 1 sec 150 10 o c 90 30 sec 2~5 o c /sec 2~5 o c /sec second ir-reflow soldering condition room temp
fd036kt FD036UT rev1.3 sep. 24, 2008 p.6 feeling technology recommended operating conditions parameter symbol conditions values unit min. typ. max. supply voltage v dd - 2.2 6.5 v operating temperature range t a - -20 85 electrical characteristics v dd =5.0v, t a =25 (unless otherwise specified) parameter symbol conditions values unit min. typ. max. average supply current(no load) i dd 5 ma output saturation voltage(fg) v sat_fg v dd =5v, t a =25 o c, iout=10ma 0.3 v output leakage current(fg) i leakage_fg v out =5v 1 a on resistance(rpmos+rnmos) r on 2 thermal shutdown threshold t thermal 165
fd036kt FD036UT rev1.3 sep. 24, 2008 p.7 feeling technology application circuit reference note : please place the decoupling capacitor as cl ose to the ic as possible 4.7ohms 2.2uf 4.7ohms 2.2uf FD036UT fd036kt vout vdd pwm ct en wout uout vss fr fg fg wout uout vss vout ct pwm vdd 5 6 4 7 3 8 2 9 1 10 4 3 1 2 8 7 6 5
fd036kt FD036UT rev1.3 sep. 24, 2008 p.8 feeling technology package outline msop-8l msop-10l
fd036kt FD036UT rev1.3 sep. 24, 2008 p.9 feeling technology packing specification (tapping reel) msop8 packing quantity specifications 2500 ea / reel 1 tape reel / 1 inside box 4 inside boxes / 1 carton
fd036kt FD036UT rev1.3 sep. 24, 2008 p.10 feeling technology packing specification (tapping reel) msop10 packing quantity specifications 2500 ea / reel 1 tape reel / 1 inside box 4 inside boxes / 1 carton
fd036kt FD036UT rev1.3 sep. 24, 2008 p.11 feeling technology order information part number operating temperature package fd036kt -20 o c to +85 o c msop8 FD036UT -20 o c to +85 o c msop10

▲Up To Search▲

Price & Availability of FD036UT

	To Download FD036UT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .