pa03 ? pa03a PA03U 1 pa03, pa03a features ? mo-127 copper power dip? package ? high internal power dissipation 500 watts ? high voltage operation 75v ? very high current 30 amps ? internal soa protection ? output swings close to supply rails ? external shutdown control applications ? linear and rotary motor drives ? yoke/magnetic field deflection ? programmable power supplies to 68v ? transducer/audio to 1000w description the super power pa03 advances the state of the art in both brute force power and self protection against abnormal operating conditions. its features start with a copper dip pack - age developed by apex microtechnology to extend power capabilities well beyond those attainable with the familiar to-3 package. the increased pin count of the new package provides additional control features, while the superior thermal conductivity of copper allows substantially higher power ratings. the pa03 incorporates innovative current limiting circuits limiting internal power dissipation to a curve approximating the safe operating area of the power transistors. the internal current limit of 35a is supplemented with thermal sensing which reduces the current limit as the substrate temperature rises. furthermore, a subcircuit monitors actual junction temperatures and with a response time of less than ten mil - liseconds reduces the current limit further to keep the junction temperature at 175c. the pa03 also features a laser trimmed high performance fet input stage providing superior dc accuracies both initially and over the full temperature range. equivalent schematic 3 4 5 2 1 12 11 8 7 6 9 10 Cv + C bal bal +v q31 q20 a q17 q2 q3 q5 q20 b q18 +shut down Cshut down q14 q22 comp q12 d1 q1 q6 q7 q19 q29 q30 q34 q32 q26 d3 out q9 d2 q16 q4 d4 + C q24 the pa03 output power stages contain fast reverse recovery diodes for sustained high energy fyback protection. this hybrid integrated circuit utilizes thick flm resistors, ceramic capacitors and silicon semiconductors to maximize reliability, minimize size and give top performance. ultra - sonically bonded aluminum wires provide reliable intercon - nections at all operating temperatures. the mo-127 copper, 12-pin power dip? package (see package outlines), is hermetically sealed and isolated from the internal circuits. insulating washers are not recommended. important: observe mounting precautions. typical application position feedback object tool shut down +5v + +s Cs C Cv s c 1 r2 r bal +v s 0/10v r1 pa03 desired position dac 12-pin dip package style cu power operational amplifiers pa03 ? pa03a copyright ? apex microtechnology, inc. 2012 (all rights reserved) www.apexanalog.com sep 2012 PA03U rev l
pa03 ? pa03a 2 PA03U absolute maximum ratings pa03 pa03a parameter test conditions 2 min typ max min typ max units input offset voltage, initial t c = 25c .5 2 .25 .5 mv offset voltage, vs. temperature full temperature range 10 30 5 10 v/c offset voltage, vs. supply t c = 25c 8 * v/v offset voltage, vs. power full temperature range 20 10 v/w bias current, initial t c = 25c 5 50 3 10 pa bias current, vs. supply t c = 25c .01 * pa/v offset current, initial t c = 25c 2.5 50 1.5 10 pa input impedance, dc t c = 25c 10 11 * input capacitance t c = 25c 6 * pf common mode voltage range 3 full temperature range v s C10v * v common mode rejection, dc full temp. range, v cm = 20v 86 108 * * db shutdown current 4 full temperature range 100 * a shutdown voltage full temp. range, amp enabled .85 * v shutdown voltage full temp. range, amp disabled 3.5 * v gain open loop gain at 10hz full temp. range, full load 92 102 * * db gain bandwidth product at 1mhz t c = 25c, full load 1 * mhz power bandwidth t c = 25c, i o = 15a, v o = 88v pp 30 * khz phase margin full temp. range, c c = 1.8nf 65 * output voltage swing 3 t c = 25c, i o = 30a v s C7 6.2 * * v voltage swing 3 full temp. range, i o = 12a v s C5 4.2 * * v voltage swing 3 full temp. range, i o = 146ma v s C4 3.5 * * v current, peak t c = 25c 30 * a settling time to .1% t c = 25c, 10v step 8 * s slew rate t c = 25c, c c - open 8 * v/s capacitive load full temp. range, a v = 1 2 * nf shutdown delay t c = C25c, disable 10 * s t c = C25c, operate 20 * s power supply voltage full temperature range 15 50 75 * * * v current, quiescent 6 t c = 25c 125 300 * * ma current, disable mode full temperature range 25 40 * * ma thermal resistance, ac junction to case 5 full temp. range, f>60hz .22 .28 * * c/w resistance, dc junction to case full temp. range, f<60hz .25 .3 * * c/w resistance, junction to ambient full temperature range 14 * c/w temperature, junction sustained operation 150 * c temperature range, case meets full range specifcation C 25 85 * * c specifications supply voltage, +v s to Cv s 150v output current, within soa internally limited power dissipation, internal 500w input voltage, differential 25v input voltage, common mode v s temperature, pin solder-10s 350c temperature, junction 1 175c temperature range, storage C65 to +150c operating temp. range, case C55 to +125c shutdown voltage, differential 5v shutdown voltage, common mode v s notes: * the specifcation of pa03a is identical to the specifcation for pa03 in applicable column to the left. 1. long term operation at the maximum junction temperature will result in reduced product life. derate power dissipation to achieve high mttf. 2. the power supply voltage for all specifcations is the typ rating unless noted as a test condition. 3. +v s and Cv s denote the positive and negative supply rail respectively. total v s is measured from +v s to Cv s . 4. rating applies if both shutdown inputs are least 1v inside supply rails. if one of the shutdown inputs is tied to a supply rail, the current in that pin may increase to 2.4ma. 5. rating applies if the output current alternates between both output transistors at a rate faster than 60hz. 6. the pa03 must be used with a heatsink or the quiescent power may drive the unit into thermal shutdown.
pa03 ? pa03a PA03U 3 0 0 100 300 500 power derating internal power dissipation, p(w) C15 105 .25 64 256 bias current 4 .06 10 100 10k .1m frequency, f (hz) input noise voltage, v n (nv/hz) 1 100 10m frequency, f (hz) C20 0 60 120 small signal response open loop gain, a (db) 20 40 80 100 1 100 .1m 10m C210 C150 C60 0 phase response C90 C30 0 5 20 25 output current, i o (a) 1 output voltage, v o (v p-p ) harmonic distortion time, t (s) 40 total supply voltage, v s (v) .4 1.4 normalized, i q (x) .6 1.2 output voltage swing 1 10k frequency, f (hz) common mode rejection common mode rejection, cmr (db) 40 80 120 .1m 10 100 0 pulse response volts 50 100 case temperature, t c (c) 0 40 current limit current limit, i lim (a) 30 input noise 1k 1k 5 45 65 85 16 200 power response 10 60 80 100 120 140 1.0 25 75 10 10 1k 10k .1m 1m 400 10 10k 1m frequency, f (hz) phase, () normalized bias current, i b (x) 1k 1m 20 60 100 5 10 15 20 25 30 C7.5 C5.0 C2.5 0 2.5 5.0 7.5 2 3 4 5 6 7 .8 1 125 50 case temperature, t c (c) C180 C120 25 frequency, f (hz) distortion, (%) voltage drop from supply (v) frequency, f (hz) 40 80 120 160 200 20 C50 C25 0 2 4 6 10 20 5k 10k 50k 100k 300k 150 10 20 30 40 50 100 3k quiescent current 30 100 300 1k 3k 10k 30k 1.0 0.3 0.1 .03 .01 .003 30 15 c c = 470pf c c = open c c = 1800pf c c = open c c = 1800pf t c = C55c t c = 25c t c = 125c v in = .5v, a v = 10 r l =.5 c c = open c c = 1800pf c c = 470pf t c = 85c t c = 25c t c = 125c t c = C25c v s = 50v a v = 10 p o = 200w r l = 4 0 case temperature, t c (c)
pa03 ? pa03a 4 PA03U general please read application note 1 "general operating con - siderations" which covers stability, supplies, heat sinking, mounting, current limit, soa interpretation, and specifcation interpretation. visit www.apexanalog.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit; heat sink selection; apex mi - crotechnology's complete application notes library; technical seminar workbook; and evaluation kits. mounting precautions the pa03 copper base is very soft and easily bent. do not put any stress on the mounting ears of this package. this calls for caution when pushing the amplifer into certain types of packaging foam and particularly when inserting the device into a socket. insert the amplifer into the socket only by pushing on the perimeter of the package lid. pushing the unit into the socket by applying pressure to the mounting tabs will bend the base due to the high insertion force required. the base will then not contact the heatsink evenly resulting in very poor heat transfer. to remove a unit from a socket, pry the socket away from the heatsink so that the heatsink will support the amplifer base evenly. recommended mounting torque is 8C10 in.-lbs. (.9C1.13 n?m). safe operating area (soa) due to the internal (non-adjustable) current limit of the pa03, worst case power dissipation calculations must assume cur - rent capability of 46 amps. application specifc circuits should be checked against the soa curve when relying upon current limit for fault protection. safe operating area curves second breakdown limitations do apply to the pa03 but are less severe, since junction temperature limiting responds within 10ms. stress levels shown as being safe for more than 10ms duration will merely cause thermal shutdown. under normal operating conditions, activation of the thermal shutdown is a sign that the internal junction temperatures have reached approximately 175c. thermal shutdown is a short term safety feature. if the conditions remain that cause thermal shutdown, the amplifer will oscillate in and out of shutdown, creating peak high power stresses, destroying useful signals, and reducing the reliability of the device. balance control the voltage offset of the pa03 may be externally adjusted to zero. to implement this adjustment install a 100 to 200 ohm potentiometer between pins 11 and 12 and connect the wiper arm to the positive supply. bypass pins 11 and 12 each with at least a .01f ceramic capacitor. if the optional adjust provision is not used, connect both pins 11 and 12 to the positive supply. output stage shutdown the entire power stage of the pa03 may be disabled us - ing one of the circuits shown in figure 1. there are many applications for this function. one is a load protection based on power delivered to the load or thermal rise. another one is conservation of power when using batteries. the control volt - age requirements accommodate a wide variety logic drivers. 1. cmos operating at +5v can drive the control pins di - rectly. 2. cmos operating at greater than 5v supplies need a voltage divider. 3. ttl logic needs a pull up resistor to +5v to provide a swing to the fully disabled voltage (3.5v). when not using the shutdown feature, connect both pins 3 and 4 to common. phase compensation at low gain settings an external compensation capacitor is required to insure stability. in addition to the resistive feed - back network, roll off or integrating capacitors must also be considered. a frequency of 1 mhz is most appropriate to cal - culate gain. operation at gains below 10, without the external compensation capacitor opens the possibility of oscillations near output saturation regions when under load, the improper operation of the thermal shutdown circuit. this can result in amplifer destruction. at gains of 10 or more: 1. no external components are required. 2. typical slew rate will be 8v/s. 3. typical phase margin will be 70. 1 10 20 50 100 150 5 10 30 40 supply to output differential v s Cv o (v) output current from +v s or Cv s (a ) current limit zone 1.0ms 10ms 100ms thermal second breakdown t c = 25c dc soa external connections 1 2 3 4 5 6 12 11 10 9 8 7 top view balance control balance control phase comp. phase comp. +supply +output Cinput +input Cshut dn +shut dn Csupply Coutput pins 6 & 7 must be connected together. if unused, tie pins 11 & 12 to +supply. ? ? important: observe mounting precautions. reverse insertion will destroy unit. the internal substrate contains beryllia (beo). do not break the seal. if accidentally broken, do not crush, machine, or subject to temperatures in excess of 850c to avoid generating toxic fumes. caution
pa03 ? pa03a PA03U 5 4 3 0 = operate 1 = shut dn 500 q14 q22 1k 1k * +5v 500 pa03 * not required when using cmos logic figure 1a. direct drive of shutdown 3 0 = shut dn 1 = operate 500 q14 q22 1k r +15v 500 pa03 figure 1b. high voltage logic interface cmos 4 4 3 500 q14 q22 1k r1 ** 500 pa03 figure 1c. thermally activated shutdown r2 4.7k load r4 30k r3 360 360C 400mv thermal sense transistor +v s 2r ** select shutoff temperature select r4 for 5v drop on r2 at a gain of 3: 1. connect a 470pf compensation capacitor between pins 9 and 10. 2. typical slew rate will be 5v/s. 3. typical phase margin will be 45. at unity gain: 1. connect a 1.8nf compensation capacitor between pins 9 and 10. 2. typical slew rate will be 1.8v/s. 3. typical phase margin will be 65. need technical help? contact apex support! for all apex microtechnology product questions and inquiries, call toll free 800-546-2739 in north america. for inquiries via email, please contact apex.support@apexanalog.com. international customers can also request support by contacting their local apex microtechnology sales representative. to fnd the one nearest to you, go to www.apexanalog.com important notice apex microtechnology, inc. has made every effort to insure the accuracy of the content contained in this document. however, the information is subject to change without notice and is provided "as is" without warranty of any kind (expressed or implied). apex microtechnology reserves the right to make changes without further notice to any specifcations or products mentioned herein to improve reliability. this document is the property of apex microtechnology and by furnishing this informa - tion, apex microtechnology grants no license, expressed or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. apex microtechnology owns the copyrights associated with the information contained herein and gives consent for copies to be made of the informa - tion only for use within your organization with respect to apex microtechnology integrated circuits or other products of apex microtechnology. this consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. apex microtechnology products are not designed, authorized or warranted to be suitable for use in products used for life support, automotive safety, security devices, or other critical applications. products in such applications are under - stood to be fully at the customer or the customers risk. apex microtechnology, apex and apex precision power are trademarks of apex microtechnolgy, inc. all other corporate names noted herein may be trademarks of their respective holders. copyright ? apex microtechnology, inc. 2012 (all rights reserved) www.apexanalog.com sep 2012 PA03U rev l
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