SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?1?of?9 block?diagram 4-channel?btl?driver?for?cd?players description the? SA6392? is? a? monolithic? integrated? circuit,? and? suitable? for? 4- ch motor? driver,? it? has? an? internal? primary? filter,? and? can be? directly connected? to? the? servo? pwm? output? of? all? drivers? other? than? the? spin dle driver. features *?4-channel?btl?driver?on?a?hsop?28-pin?power?package, allowing?for application?miniaturization. *? pwm? input? is? filtered? by? the? internal? primary? filter, eliminating? the need? for? attached? resistors? and? capacitors,? thereby? helping? reduce the?number?of?components. resistor? and? capacitor? time? constants? can also? be? changed? with attached?components. *?built?in?thermal?shutdown?circuit *?built?in?mute?function ordering?information part?no. package SA6392 hsop-28-375-0.8 application cd?players,?cd-rom?drives
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?2?of?9 absolute?maximum?rating ?(t amb =25 c) characteristic symbol value unit power?supply?voltage v cc 18 v power?dissipation p d 1.7* w operating?temperature t opr -30~+85 c storage?temperature t stg -55~+150 c *:?reduced?by?13.6mw?for?each?increase?in?tamb?of?1 c?over?25 c.?when?mounted?on?a?50?x?50?x?1.0?mm phenol?paper?pcb. recommended?operating?conditions ?(t amb =25c) characteristics symbol value unit power?supply?voltage v cc 6~16* v *?set?the?power?supply?voltage?according?to?power?dissipation. electrical?characteristics ?(unless?otherwise?specified,?t amb =25c,?v cc =8v,?f=1khz,?r l =8 w ) (to?be?continued) characteristics symbol test?condition min. typ. max. unit quiescent?current i q no?load 8 13 18 ma bias?pin?voltage v bias 3.4 3.70 4.00 v bias?pin?voltage?variance ? v bias 1ma?source,?sink -30 -- 30 mv mute-off?voltage v mon 2.0 -- -- v mute-on?voltage v moff -- -- 0.5 v drivers?other?than?spindle input?high?level?voltage v ih 2.4 -- -- v input?low?level?voltage v il -- -- 0.5 v input?high?level?current i ih ?v in =5v 170 310 450 m a input?low?level?current i il v in =0v -10 -- 0 m a output?voltage,?offset v oo ? (same?for?spindle) -30 -- 30 mv output?high?level?voltage v ohd ?f in =5v,?r in =0v 5.2 5.6 -- v output?low?level?voltage v old ?f in =0v,?r in =5v -- 1.3 1.6 v constant?current i const 14 22 30 m a internal?integral?capacitance c -- 24 -- pf current?pulse?rise?time?1 ? t r at?startup -- 0.08 1 m s current?pulse?fall?time?2 ? t f at?shutdown -- 0.55 1 m s current?pulse?time?differential ? t r-f -160 -- 160 m s drive?linearity l in ?v in =v ref 0.5,?1,?1.5v?* 90 100 110 % ripple?rejection r r ?v in =100mvrms,?100hz -- 70 -- db
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?3?of?9 ?(continued) not?designed?for?radiation?resistance. *?if?v o =v o1 ?when?v in =v ref 0.5v, ?v o =v o2 ?when?v in =v ref 1.0v ,?and?v o =v3?when?v in =v ref 1.5v ,?then l in =(v o3 -v o2 )/(v o2 ?v o1 )?x100% pin?configuration pin?description (to?be?continued) characteristics symbol test?condition min. typ. max. unit spindle?driver input?bias?current i b -- 10 300 na synchronous?input?voltage v icm 1.6 -- 6.4 v output?voltage?high v ohd 5.2 5.6 -- v output?voltage?low v old -- 1.3 1.55 v voltage?gain gvc 8.0 10.5 13.0 db slew?rate sr -- 2 -- v/ m s ripple?rejection r rs ?v in =100vrms,?100hz -- 70 -- db pin?no symbol description 1 out1f driver?channel?1?forward?output 2 out1r driver?channel?1?reverse?output 3 in1rc connect?to?attached?resistor/capacitor?(1) 4 in1r driver?channel?1?reverse?input 5 in1f driver?channel?1?forward?input 6 vref?in internal?reference?amplifier?input 7 vref?out internal?reference?amplifier?output 8 gnd ground?for?internal?reference?and?internal?power?circuit 9 in2f driver?channel?2?forward?input
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?4?of?9 ?(continued) *?pin?23?and?pin?25?shorted?internally. function?description circuit?operation (1)?fig.?2?shows?the?inputs?from?the?digital?servo?ic?for?ch1-ch3?drivers?(all?drivers?except?the?spindle). sw1?is?on?when?the?forward?input?signal?(high?level,?over?2.4v)?is?present.?sw2?is?on?when?the?reverse?input signal?is?present?(fig.?1) the?constant?current? (i1?)? at? this?time?enters?the?rc?and?generates?an?integral?waveform?based?on?the?duty?of the?input?waveform.?the?btl?is?output?from?buf1?and?buf2?(fig.?3). fig.1 pin?no symbol description 10 in2r driver?channel?2?reverse?input 11 in2rc connect?to?attached?resistor/capacitor?(2) 12 out2r driver?channel?2?reverse?output 13 out2f driver?channel?2?forward?output 14 gnd ground 15 mute driver?mute?control?input 16 out3f driver?channel?3?forward?output 17 out3r driver?channel?3?reverse?output 18 in3rc connect?to?attached?resistor/capacitor?(3) 19 in3r driver?channel?3?reverse?input 20 in3f driver?channel?3?forward?input 21 vcc power?supply 22 vcc power?supply 23 inb driver?channel?4?bias?input* 24 ins driver?channel?4?input 25 inb driver?channel?4?bias?input* 26 out4r driver?channel?4?reverse?output 27 out4f driver?channel?4?forward?output 28 gnd ground
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?5?of?9 fig.2 to?maintain?the?high?level?with?forward?(or?reverse)?in-put,?the?dc?voltage?generated?at?point?a?is: i1?x?r ? ?2.5v?(reverse:?-?2.5v) this?is?the?voltage?generated?relative?vref.? the?setting?is?such?that?a?voltage?differential?of?5v?is?generated between?output?pins.?the?time?constant?is: rxc?=?2.4 m ?sec this?can?be?increased?by?inserting?a?capacitor?between?point? a?(pins?3,?11?and?18)?and?vref.? the?constant current?(iconst)?given?in?the?electrical?characteristics?refers?to?i1?and?i2?in?fig.?2. f r sw1 sw2 l l off off l h off on h l on off h h off off h? 2.4v?max. l? 0.5v?min. fig.3 ?(2)?ch4?driver?(spindle?driver) pins?23?and?25?are?shorted?inside?the?ic.? bias?amplitudes?are?the?primary?type?of?inputs?assumed.?the?level shift? circuit? converts?the?pre-stage?amplifier?output? (centered?on?the?bias?level?and?impressed?on?pins?23?and?25) to? positive? and? negative? amplitudes? centered? on? vref.? the? level? shift? circuit?s? output? is? btl-output? from? the buffer?amplifier. because?of?the?high?input?impedance,?the?ic?is?designed?to?accommodate?a?filter?comprising?attached?resistors and?capacitors. operation?notes (1)? the? SA6392? has? an? internal? thermal? shutdown? circuit.? output? current? is? muted? when? the? chip? temperature exceeds?180 c?(typically). (2)?the?output?current?can?also?be?muted?by?lowering?the?mute?pin?(pin?15)?voltage?below?0.5v. (3)?all?four?driver?output?channels?are?muted?during?thermal?shutdown,?muting?and?a?drop?in?bias?pin?voltage.?no other?components?are?muted.
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?6?of?9 (4)?if?ch2?is?the?motor?tracking?channel,?it? should?be?connect?a?capacitor?(0.1 m f)? between?pin12?and?pin?13.?it suit?to?more?laser?tape?equipments. electrical?characteristics?curves?and?test?circuit fig.4??spindle?driver?(ch4)?i/o?characteristics?(load?variation) fig.5?i/o?characteristics?of?driver?stages?ch1-ch3 -6 input?voltage :v in (v) -5 -4 -3 -2 -1 -4 -2 0 2 4 1 2 3 4 5 6 r l = 26 ? r l = 12 ? r l =8 ? 1 3 5 -1 -3 -5 when?dc?input from?rc?pin v v 100 k v in v out r il v cc =8v rcin
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?7?of?9 fig.6???i/o?characteristics?with?pulse?input?(drivers?ch1-ch3) fig.7????driver?ch1-ch3?power?supply?voltage?vs.?output?voltage
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?8?of?9 package?outline hsop-28-375-0.8 unit:?mm 18 . 05 0. 20 0. 35 0.8 5. 15 0. 10 0. 25 0.1
SA6392 hangzhou?silan?microelectronics?co.,ltd rev:2.2???????2004.02.12 http:?www.silan.com.cn??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????page?9?of?9 attachment revision?history data rev description page 2003.03.21 1.0 original 2003.04.16 2.0 ?sa5692??change?to??SA6392?. 2003.11.13 2.1 modify?the??operation?notes? 5 2004.02.12 2.2 modify?the??operation?notes? 5
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