apex microtechnology corporation ? telephone (520) 690-8600 ? fax (520) 888-3329 ? orders (520) 690-8601 ? email prodlit@apexmicrotech.com 1 ? ? ???? ? ? ?????? ????? ????? ???? ?? ? ? ? ? ? ?? ????? ??????????? ? ?? ? ?? ? ?? ??? ?? ??? ??? ??? ??? ?? ? ?? ? ? ? ? ? ? ? ? ? ????????????????????? ?? ?? ?? ????? ? ? ?? ????? ?? ???? ?? ????? features ? high internal dissipation 125 watts ? high voltage, high current 100v, 10a ? high slew rate 10v/s ? 4 wire current limit sensing ? optional boost voltage inputs applications ? linear and rotary motor drives ? yoke/magnetic field excitation ? programmable power supplies to 45v ? industrial audio ? package option - dip10 - dual-in-line description the mp39 is a cost-effective high voltage mosfet power operational ampli?er constructed with surface mount com - ponents on a thermally conductive but electrically isolated substrate. while the cost is low the mp39 offers many of the same features and performance speci?cations found in much more expensive hybrid power ampli?ers. the metal substrate allows the mp39 to dissipate power up to 125 watts and its power supply voltages can range up to +/- 50 volts (100v total). optional boost voltage inputs allow the small signal portion of the ampli?er to operate at higher supply voltages than the high current output stage. the ampli?er is then biased to achieve close linear swings to the supply rails at high current for extra ef?cient operation. external compensation tailors performance to the user needs. a four-wire sense technique allows current limiting without the need to consider internal or external mili-ohm parasitic resistance in the output line. an iq pin is available which can be used to shut off the quiescent current in the output stage. the output stage then operates class c and lowers quiescent power dissipation. this is useful in applications where output crossover distortion is not important. equivalent schematic * see "bypassing" paragraph phase compensation gain cc rc 1 470pf 100? 3 220pf short 10 100pf short ??? ?? ??? ?? ??? ?? ????? ?? ?? ??? ?? ??? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ????? ?? ?? ?? ?? ??? ?? ??? ?? ? ??? ?? ?? ??? ?? ??? ?? ? ? ? ?? ? ??? ? ?? ?? ? ? ?? ?? ?? ? ??????????????????? ??? ? ? ? ??? ??? ??? ??? ??? ? ?? ?? ?? ?? ?? ?? ?? ?? ? ? ?? ?? ?? ?? ? ?? ?? ?? ?? ?? ? ??? ?? ?? ??? ??? ??? ??? ??? ??? ?? ??? ?? ??? ?? ?? ?? ???? ??? ??? ?? ?? ?? ??? ?? ?? ??? ?? ?? ???? ?? ?? ??? ??? ??? ?? ?? ??? ??? ?? ?? ??? ????? ????? ??? ??? ??? ??? ??? ??? ??? ??? typical application ref: application note 25 the high power bandwidth and high voltage output of the mp39 allows driving ultra-sonic transducers via a resonant circuit including the transducer and a matching transformer. the load circuit appears resistive to the mp39. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??????????????????????????? ????????????? external connections 30-pin dip package style cl
apex microtechnology corporation ? telephone (520) 690-8600 ? fax (520) 888-3329 ? orders (520) 690-8601 ? email prodlit@apexmicrotech.com 2 absolute maximum ratings specifications absolute maximum ratings supply voltage, +v s to Cv s 100v boost voltage v s 20v output current, within soa 25a power dissipation, internal 125w input voltage, differential 20v input voltage, common mode v b temperature, pin solder - 10s 200c temperature, junction 2 175c temperature, storage C40 to +105c operating temperature range, case C40 to +85c mp39 ? MP39A specifications notes: * the speci?cation of MP39A is identical to the speci? cation for mp39 in applicable column to the left. 1. unless otherwise noted: t c = 25c, r c = 100?, c c = 470pf. dc input speci?cations are value given. power supply voltage is typical rating. v b = v s . 2. long term operation at the maximum junction temperature will result in reduced product life. derate internal power dissipation to achieve high mttf. for guidance, refer to the heatsink data sheet. 3. rating applies if the output current alternates between both output transistors at a rate faster than 60 hz. 4. the mp39 must be used with a heat sink or the quiescent power may drive the unit to junction temperatures higher than 175c. the mp39 is constructed from mosfet transistors. esd handling procedures must be observed. caution mp39 MP39A parameter test conditions 1 min typ max min typ max units input offset voltage, initial 5 10 * 3 mv offset voltage, vs. temperature full temperature range 30 50 * * v/c offset voltage, vs. supply 15 * v/v offset voltage, vs. power full temperature range 30 * v/w bias current, initial 10 200 * 100 pa bias current, vs. supply .01 * pa/v offset current, initial 10 50 * 30 pa input impedance, dc 10 10 * ? input capacitance 20 * pf common mode voltage range full temperature range v b 15 v b 12 * * v common mode rejection, dc full temp, range, v cm = 20v 86 98 * * db input noise 100khz bw, r s = 1k? 10 * vrms gain open loop, @15hz full temperature range, c c = 100pf 94 113 * * db gain bandwidth product i o =10a 2 * mhz power bandwidth r l =10?, v o = 90v p-p 40 * khz c c = 100pf phase margin full temperature range 60 * output vo l tage swing i o =10a v s 8.8 v s 6.0 * * v voltage swing v b = v s 10v, i o =10a v s 6.8 v s 1.1 * * v settling time to .1% a v =+1,10v step, r l =4? 2.5 * s slew rate a v = C10, c c = 100pf 10 * v/s capacitive load full temperature range, a v =+1 10 * nf resistance 4 * ? current, continuous 10 11 a power supply volt a ge full temperature range 15 40 50 * * * v current, quiescent, boost supply 22 * ma current, quiescent, total 26 * ma thermal resi s tance, ac, junction to case 3 ful l temperature range, f>60hz .9 * c/w resistance, dc, junction to case full temperature range, f<60hz 1.2 * c/w resistance 4 , junction to air full temperature range 12 * c/w temperature range, case meets full range speci?cation -40 85 * * c
apex microtechnology corporation ? telephone (520) 690-8600 ? fax (520) 888-3329 ? orders (520) 690-8601 ? email prodlit@apexmicrotech.com 3 ??????????????????? ??? ?? ? ??? ???? ????? ?????????????????????? ??? ?? ??? ???? ????????????????? ????? ????? ????? ????? ????? ?????????????? ????????????????? ??????????????? ? ?? ??? ?? ??? ???? ?? ??? ? ??? ??? ???? ???? ???? ???? ??? ???????????????????????? ??? ??? ??? ?? ?? ?? ?? ? ??? ??? ????????????????????? ????????????????? ? ?? ??? ?? ??? ???? ?? ??? ????? ??? ???????? ???? ? ? ? ???? ? ? ? ??????? ? ???? ? ???? ????? ????? ????? ???? ???? ????? ??? ???? ??? ??? ??? ??? ??? ???????????????????????????????? ?? ?? ???????????????? ?? ?? ?? ? ??????????????????? ? ?? ?? ?? ?? ??????????????????? ? ????? ?? ?? ?? ?????????????? ???????????????????????????????? ??? ?? ? ??? ??? ??? ? ?????????????? ????????????????? ? ??? ?? ? ??? ?? ??? ???? ?? ? ??????????????? ? ??? ???????????????????????????????? ? ?? ? ???? ??? ????????????????? ? ???? ??? ?? ??? ? ?? ? ? ? ? ? ? ? ? ? ?? ?????????????????????????????????? ? ??? ?? ??? ????????????????? ? ???? ???????????????????? ?? ? ????? ? ?? ? ????? ? ?????? ? ? ? ? ? ? ?? ? ????? ? ?? ? ????? ? ?????? typical performance graphs mp39 ? MP39A
apex microtechnology corporation ? telephone (520) 690-8600 ? fax (520) 888-3329 ? orders (520) 690-8601 ? email prodlit@apexmicrotech.com 4 general please read application note 1 "general operating con - siderations" which covers stability, supplies, heat sinking, mounting, current limit, soa interpretation, and speci?cation interpretation. visit www.apexmicrotech.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit; heat sink selection; apexs complete application notes library; technical seminar workbook; and evaluation kits. current limit the two current limit sense lines are to be connected directly across the current limit sense resistor. for the current limit to work correctly pin 24 must be connected to the ampli?er output side and pin 23 connected to the load side of the current limit resistor, r cl , as shown in figure 1. this connection will bypass any parasitic resistances, rp, formed by sockets and solder joints as well as internal ampli?er losses. the current limiting resistor may not be placed anywhere in the output circuit except where shown in figure 1. the value of the current limit resistor can be calculated as follows: .7 r cl = i limit boost operation with the v b feature the small signal stages of the ampli?er are operated at higher supply voltages than the ampli?er's high current output stage. +v s (pins 12-14) and Cv s (pins 18-20) are connected to the high current output stage. an additional 10v on the v b pins is suf?cient to allow the small signal stages to drive the output transistors into saturation and improve the output voltage swing for extra ef?cient operation when required. when close swing to the supply rails is not required the +v b and +v s pins must be strapped together as well as the Cv b and Cv s pins. the boost voltage pins must not be at a voltage lower than the v s pins. bypassing proper bypassing of the power supply pins is crucial for proper operation. bypass the vs pins with a aluminum electrolytic capacitor with a value of at least 10f per amp of expected output current. in addition a .47f to 1f ceramic capacitor should be placed in parallel with each aluminum electrolytic capacitor. both of these capacitors have to be placed as close to the power supply pins as physically possible. if not connected to the vs pins (see boost operation) the v b pins should also be bypassed with a .47f to 1f ceramic capacitor. using the iq pin function pin 25 (iq) can be tied to pin 6 (cc1) to eliminate the class ab biasing current from the output stage. typically this would remove 1-4 ma of quiescent current. the resulting decrease in quiescent power dissipation may be important in some applications. note that implementing this option will raise the output impedance of the ampli?er and increase crossover distortion as well. compensation the external compensation components c c and r c are con - nected to pins 4 and 6. unity gain stability can be achieved at any compensation capacitance greater than 470 pf with at least 60 degrees of phase margin. at higher gains more phase shift can be tolerated in most designs and the compensation capacitance can accordingly be reduced, resulting in higher bandwidth and slew rate. application references for additional technical information please refer to the fol - lowing application notes. an 1 general operating considerations an 11 thermal techniques an 38 loop stability with reactive loads ? ? ? ? ?? ?? ?? ?? ? ?? ???? ? ? ? ? ????? ????? ??????????????????????? this data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. all speci?cations are subject to change without notice. mp39u rev g january 2005 ? 2005 apex microtechnology corp . absolute maximum ratings specifications mp39 ? MP39A
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