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copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 1 anpec reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. three-phase sine-wave sensor-less fan motor driver apx9358e pwm quasi-sinusoidal driver three-phase sensor-less drive method adjustable forced commutation frequency (for start-up) built-in external pwm speed control built-in quick start function fg (rotation speed detection) output soft switching circuit (for noise reducing) power saving function (pwm duty input is 0%) built-in lock protection and auto restart function thermal shutdown circuit lead free and green devices available (rohs compliant) the apx9358e provides all the circuitry for sensor-less speed control of three-phase brushless dc motor. the sine-wave driver method will be better low-noise. the controller functions include start-up circuit, back-emf com- mutation control, pulse width modulation (pwm) speed control, lock protection, and thermal shutdown circuit. the apx9358e is suitable for both game machine and cpu cooler that need silent drivers. it is available in vtdfn3x3-10 package. features general description applications motor driver for silent fan motors pin configuration vcc 3 10 pwm fg 1 com 2 fr 5 9 osc 7 vo 8 gnd vtdfn3x3-10 (top view) uo 4 6 wo = thermal pad (connected to the gnd plane for better heat dissipation)
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 2 apx9358e ordering and marking information symbol parameter rating unit v cc vcc pin supply voltage -0.3 to 7 v i out uo/vo/wo pin output current 0 to 1 a v uo /v vo /v wo uo/vo/wo pin output voltage -0.3 to 7 v v fg fg pin output voltage -0.3 to 7 v i fg fg pin sink current 0 to 10 ma v fr fr pin input voltage -0.3 to 7 v t j junction temperature -40 to 150 c t stg storage temperature -65 to 150 c t sdr maximum lead soldering temperature, 10 seconds 260 c absolute maximum ratings (note 1) note1: stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recom- mended operating conditions" is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note: anpec lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with rohs. anpec lead-free products meet or exceed the lead-free requirements of ipc/jedec j - std-020d for msl classification at lead-free peak reflow temperature. anpec defines green to mean lead-free (rohs compliant) and halogen free (br or cl does not exceed 900ppm by weight in homogeneous material and total of br and cl does not exceed 1500ppm by weight). apx9358e package code qf : vtdfn3x3-10 operating ambient temperature range i : -40 to 105 handling code tr : tape & reel assembly material g : halogen and lead free device apx9358e qf : assembly material handling code temperature range package code apx 9358e xxxxx xxxxx - date code
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 3 apx9358e thermal characteristics symbol parameter typical value unit q ja thermal resistance-junction to ambient (note2) vtdfn3x3-10 119 c/w p d power dissipation, t a =25 c vtdfn3x3-10 1.05 w note 2: q ja is measured with the component mounted on a 55mm x 40mm x 1.6mm glass epoxy board (two-layer) in free air. recommended operating conditions symbol parameter range unit v cc vcc pin supply voltage range 1.8 to 6 v v pwm pwm pin input voltage range 0 to v cc v t a ambient temperature -40 to 105 c i out uo/vo/wo pin average output current 0 to 400 ma
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 4 apx9358e electrical characteristics (v cc =5v, t a =25 c, unless otherwise specified) apx9358e symbol parameter test conditions min. typ. max. unit supply current i cc1 operating current rotation mode, fr=v cc - 4.5 6 ma i cc2 standby supply current pwm=0 - 130 180 m a pwm control v pwmh pwm input high level voltage 2.5 - v cc +0.3 v v pwml pwm input low level voltage -0.3 - 0.8 v i pwmh pwm high input current pwm=v cc - 0 - m a i pwml pwm low input current pwm=gnd - 25 30 m a f pwm pwm input frequency 2 - 50 khz oscillator v osc h osc pin high level voltage 1 1.2 1.4 v v osc l osc pin low level voltage 0.5 0.6 0.7 v i osc 1 osc pin charge current v osc =0v - 16.5 - a i osc 2 osc pin discharge current v osc =1.2v - 16.5 - a output drivers v o output driver saturation voltage i out =250ma, upper and lower total - 0.3 0.44 v v fg fg pin low voltage i fg =5ma - 0.2 0.3 v i fgl fg pin leak current v fg =7v - - 10 m a v frh fr input high threshold voltage 0.5 x v cc - v cc v v frl fr input low threshold voltage 0 - 0.1 x v cc v lock protection t on lock detection on time 0.85 1 1.15 sec t off lock detection off time 4.25 5 5.75 sec thermal shutdown over temperature shutdown - 160 - ots over temperature shutdown hysteresis - 30 - o c quick start t qs quick start enable time - 16 - ms
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 5 apx9358e typical operating characteristics output saturation voltage vs. output current 0 200 400 600 800 1000 output current (ma) o u t p u t s a t u r a t i o n v o l t a g e ( m v ) lower side upper side v cc = 5v 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 fg pin low voltage vs. sink current 0 1 2 3 4 5 6 7 8 9 10 fg pin sink current (ma) f g p i n l o w v o l t a g e ( v ) v cc = 2v v cc = 5v 0 0.1 0.2 0.3 0.4 0.5 0 1 2 3 4 5 6 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 v c c s u p p l y c u r r e n t ( m a ) vcc supply current vs. vcc supply voltage vcc supply voltage(v) operation mode m a x i m u m p o w e r d i s s i p a t i o n ( m w ) maximum power dissipation vs. ambient temperature ambient temperature( o c) 0 200 400 600 800 1000 1200 0 25 50 75 100 125 150 vcc supply voltage(v) vcc supply current vs. vcc supply voltage v c c s u p p l y c u r r e n t ( a ) 0 30 60 90 120 150 180 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 standby mode
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 6 apx9358e operating waveforms rotation mode waveform (pwm=100) ch1: v uo , 5v/div, dc ch2: v vo , 5v/div, dc ch3: v wo , 5v/div, dc ch4: v fg , 5v/div, dc time: 2ms/div 1 4 2 3 rotation mode waveform (pwm=9) 1 4 2 3 ch1: v uo , 5v/div, dc ch2: v vo , 5v/div, dc ch3: v wo , 5v/div, dc ch4: v fg , 5v/div, dc time: 10ms/div
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 7 apx9358e pin no. name description 1 fg rotation speed output. this is an open-drain output. 2 com motor neutral point input pin 3 vcc supply voltage input pin. 4 uo driver output pin. output signal for driving motor phase u. 5 fr motor spin direction control pin. high level input: u v w (floating) low level input: u w v 6 wo driver output pin. output signal for driving motor phase w. 7 vo driver output pin. output signal for driving motor phase v. 8 gnd ground pin. 9 osc start-up commutation time setting. connect a capacitor to gnd to set start-up commutation time. 10 pwm pwm signal input pin. input pwm signal to control rotation speed. pin description block diagram phase sel sensorless logic clock controller & pre-driver lock protect logic tsd ps start up time seting fr vcc osc pwm gnd com uo vo wo fg zc vcc vcc vcc
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 8 apx9358e typical application circuit wo vo uo gnd fg r fg =10k vcc osc pwm com c osc 2.2nf v in fr forward: vcc or floating reverse: gnd c1 2.2uf pull high voltage pwm control signal fg output
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 9 apx9358e function description pwm speed control (fixed-frequency output) it is possible to change rotation speed of the motor by switching output transistor. the on-duty of switching de- pends on the signal from input to pwm terminal. the output pwm frequency is fixed to 30khz typically. (see figure 1 pwm input waveform) figure 1. pwm input waveform quick start this ic disables the lock protection function when the pwm input keeps low level for more than 16ms. (see figure 2 quick start waveform) figure 2. quick start waveform soft switch (sine-wave output) the is a soft switch function to make phase current be- come smooth, which can reduce the noise of motor in switching interval. using pwm duty cycle control to create the sinusoidal current waveform. bemf detection win- dow is opened on phase w in order to measure the rotor position so as to define the modulation timing. close to the ideal sine wave output.( see figure 4. sinusoidal pwm) lock protection and automatic restart the apx9358e provides the lock protection and automatic restart functions to prevent the coil burnout while the fan is locked. as the fan is locked, the ic will come into start- up operation for 1 second. then, the ic will switch to lock protection mode to turn off output driver for 5 seconds. after lock protection mode, the ic switches to start-up operation again. if the locked condition still remains, the lock-and-restart process will be recurred until the locked condition is released. thermal protection the apx9358e has thermal protection. when internal junction temperature reaches 160 o c, the output devices will be switched off. when the ic s junction temperature cools down 30 o c, the thermal sensor will turn on the output devices again, resulting in a pulsed output during continuous thermal protection. v pwm v vo sinusoidal pwm uo,vo,wo sine drive modulation figure 4. sinusoidal pwm v pwm lock protect enable (internal) enable disable enable 16ms fg output the fg pin is an open-drain output, connecting a pull up resistor to a high level voltage for the speed detection function. when wo pin voltage switches to high, the fg is high (switch off) and the wo pin voltage switches to low then fg is low (switch on). the fg output only works in sensor- less mode. (see figure 3 fg output waveform) figure 3. fg output waveform v wo fg
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 10 apx9358e application information input protection capacitor for the noise reduction purpose, a capacitor (c1) is con- nected between vcc and gnd. (see typical application circuit) it s suggested that c1 should be placed as close as possible in the vcc pin. osc capacitor the capacitor connects from osc pin to gnd can be determined the frequency of force commutation. the op- timal design of the frequency could make sure the motor start-up in succeed. its capacitance from 1000pf to 3300pf is recommended. c osc v cc i charge i discharge v osc 1.2 v 0.6 v tosc = 2t frequency divider 16 clock counter 50 figure 5. osc circuit t osc = for example: c osc =2.2nf v oscl =0.6v v osch =1.2v i osc = (i osc1 + i osc2 )/2=16.5 m a the force start up time is 128ms ( ) 50 16 i c v v 2 osc osc oscl osch - external capacitor synchronized time 3300pf 192ms 2200pf 128ms 1000pf 58.18ms table 1. capacitor values and synchronized time
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 11 apx9358e fg resistor the value of fg resistor could be decided by the following equation: for example: v cc = 5v, i fg = 5ma, v fg = 0.2v, r fg = 0.96k w the value of resistor in the range of 1k w to 10k w is recommended. thermal consideration refer to maximum power dissipation vs. ambient temp- erature , the ic is safe to operate below the curve and it will cause the thermal protection if the operating area is above the line. for example, t a = 75 c, the vtdfn3x3-10 package maximum power dissipation is about 0.63w. the power dissipation can be calculated by the following equation: ( ) cc cc uo vo uo cc d i v i v v v p + - - = for example: v cc = 5v, i cc = 3ma, i out = 250ma, v uo = 4.85v, v vo = 0.15v, then p d = 0.09w the gnd pin provides an electrical connection to the ground and channeling heat away. the printed circuit board (pcb) forms a heat sink and dissipates most of the heat into ambient air. fg/rd fg/rd cc fg i v v r - = application information (cont.)
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 12 apx9358e package information vtdfn3x3-10 pin 1 corner e e 2 k l d2 a1 a3 b a pin 1 e d s y m b o l min. max. 0.60 0.00 0.18 0.30 2.20 2.70 0.05 1.40 a a1 b d d2 e e2 e l millimeters a3 0.152 ref vtdfn3*3-10 0.30 0.50 1.75 0.006 ref min. max. inches 0.024 0.000 0.007 0.012 0.087 0.106 0.055 0.012 0.020 0.50 0.069 0.020 0.002 0.50 bsc 0.020 bsc 0.20 0.008 k 2.90 3.10 0.114 0.122 2.90 3.10 0.114 0.122
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 13 apx9358e application a h t1 c d d w e1 f 330.0 2.00 50 min. 12.4+2.00 -0.00 13.0+0.50 -0.20 1.5 min. 20.2 min. 12.0 0.30 1.75 0.10 5.5 0.05 p0 p1 p2 d0 d1 t a0 b0 k0 vtdfn3x3-10 4.0 0.10 8.0 0.10 2.0 0.05 1.5+0.10 -0.00 1.5 min. 0.6+0.00 -0.40 3.30 0.20 3.30 0.20 0.75 0.20 (mm) devices per unit carrier tape & reel dimensions package type unit quantity vtdfn3x3-10 tape & reel 3000 a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1 h t1 a d
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 14 apx9358e taping direction information user direction of feed vtdfn3x3-10 classification profile
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 15 apx9358e profile feature sn-pb eutectic assembly pb-free assembly preheat & soak temperature min (t smin ) temperature max (t smax ) time (t smin to t smax ) (t s ) 100 c 150 c 60-120 seconds 150 c 200 c 60-120 seconds average ramp-up rate (t smax to t p ) 3 c/second max. 3 c/second max. liquidous temperature (t l ) time at liquidous (t l ) 183 c 60-150 seconds 217 c 60-150 seconds peak package body temperature (t p )* see classification temp in table 1 see classification temp in table 2 time (t p )** within 5 c of the specified classification temperature (t c ) 20** seconds 30** seconds average ramp-down rate (t p to t smax ) 6 c/second max. 6 c/second max. time 25 c to peak temperature 6 minutes max. 8 minutes max. * tolerance for peak profile temperature (t p ) is defined as a supplier minimum and a user maximum. ** tolerance for time at peak profile temperature (t p ) is defined as a supplier minimum and a user maximum. classification reflow profiles table 1. snpb eutectic process C classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 3 350 <2.5 mm 235 c 220 c 3 2.5 mm 220 c 220 c table 2. pb-free process C classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 350-2000 volume mm 3 >2000 <1.6 mm 260 c 260 c 260 c 1.6 mm C 2.5 mm 260 c 250 c 245 c 3 2.5 mm 250 c 245 c 245 c test item method description solderability jesd-22, b102 5 sec, 245 c holt jesd-22, a108 1000 hrs, bias @ t j =125 c pct jesd-22, a102 168 hrs, 100 % rh, 2atm, 121 c tct jesd-22, a104 500 cycles, -65 c~150 c hbm mil-std-883-3015.7 vhbm R 2kv mm jesd-22, a115 vmm R 200v latch-up jesd 78 10ms, 1 tr R 100ma reliability test program
copyright ? anpec electronics corp. rev. a.1 - apr., 2017 www.anpec.com.tw 16 apx9358e customer service anpec electronics corp. head office : no.6, dusing 1st road, sbip, hsin-chu, taiwan tel : 886-3-5642000 fax : 886-3-5642050 taipei branch : 2f, no. 11, lane 218, sec 2 jhongsing rd., sindian city, taipei county 23146, taiwan tel : 886-2-2910-3838 fax : 886-2-2917-3838

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