4707 dey road liverpool, n.y. 13088 (315) 701-6751 features: MSK185 replaces apex pa26 msk184 replaces apex pa21 available to dscc smd 5962-92152 space efficient dual amplifiers high voltage operation: single supply: +8v to +60v dual supply: 4v to30v high output current: 3 amp continuous per amplifier high speed: 10v/s low quiescent current: 20 ma per amplifier typ. adjustable current limits thermal shutdown enable/status pin for output disable control mil-prf-38534 certified 182/183/ 184/185 iso-9001 certified by dscc servo driver actuator driver audio amplifier power supplies bridge amps stereo amps m.s.kennedy corp. msk182 description: the msk 182, 183, 184 and 185 are dual high power monolithic operational amplifiers ideal for use with a wide variety of loads. with operation from either single or dual supplies, they offer excellent design flexibility. power dissipation is kept to a minimum with a quiescent current rating of only 20ma per amplifier, while 3 amps of continuous available output current makes them a very good low cost choice for motor drive circuits and audio amplification. the design is internally protected against current overloads and overtemperature conditions. on the msk 182 and msk 183, current limit can also be user-selected through the use of a resistor/potentiometer or voltage out/current out dac. the msk 182 is packaged in a hermetically sealed 14 pin power dip with bolt down tabs for applications that require heat sinking. the msk 183 is packaged in a low cost ceramic sip and the msk 184 is packaged in a to-3. the msk 185 is packaged in a hermetically sealed 12 pin sip flatpack with mounting studs. typical applications rev. i 3/04 1 msk183 dual high voltage/ high current operational amplifier msk184 MSK185 (in development)
equivalent schematic msk183 msk182 msk184 1 2 3 4 5 6 7 output 1 +v cc 1 -v cc 1 +v in 2 -v in 2 i lim 2 e/s 2 14 13 12 11 10 9 8 e/s 1 i lim 1 -v in 1 +v in 1 -v cc 2 +v cc 2 output 2 pin-out information 1 2 3 4 5 6 7 +v in 1 -v in 1 i lim 1 e/s 1 output 1 +v cc 1 -v cc 1/2 msk 182 pinout msk 183 pinout 13 12 11 10 9 8 e/s 2 i lim 2 -v in 2 +v in 2 +v cc 2 output 2 1 2 3 4 5 6 7 8 output(1) +v cc (1/2) -v in (1) +v in (1) +v in (2) -v in (2) -v cc (1/2) output(2) msk 184 pinout rev. i 3/04 2 1 2 3 4 5 6 +v in 1 -v in 1 nc nc output 1 -v cc 1/2 12 11 10 9 8 7 +v in 2 -v in 2 nc nc output 2 +v cc 1/2 msk 185 pinout MSK185
static supply voltage range input input offset voltage input offset voltage drift input bias current input offset current input impedance input capacitance common m ode rejection ratio input voltage noise density output output current output disable time output enable time transfer characteristics slew rate open loop voltage gain settling time 0.1% max. 30 20 20 - 10 - 500 50 - - - - - - - - -29 - - - - - - - 60v 5a 29.5v +27v/-29v internal protection (see application note) total supply voltage output current (within s.o.a.) input voltage (differential) input voltage (common mode) junction temperature -65c to +150c 300c -40c to +125c -25c to +85c 1.8c/w 3.0c/w 3.5c/w 4.0c/w 1 2 3 4 5 6 7 8 9 absolute maximum ratings t st t ld t c r th v cc i out v ind v in t j unless otherwise specified v cc = 30vdc and e/s pin is open for msk 182 and msk 183. all electrical specifications apply to each amplifier. devices shall be capable of meeting the parameter, but need not to be tested. typical parameters are for reference only. industrial grade and 'e' suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified. military grade devices ('g' suffix) shall be 100% tested to subgroups 1,2,3 and 4. subgroup 1,4 t a =t c =+25c subgroup 2 t a =t c =+125c subgroup 3 t a =t c =-40c does not apply to msk 184 or MSK185. refer to smd 5962-92152 for electrical parameters for devices purchased as such. the operating temperature range is -55c to +125c if the device is powered. the minimum cold start temperature is -40c. v in =0v v in =0v v in =0v v in =ov f=dc f=dc (-v cc )- 0.1 v in (+v cc) - 3v f=1kh z i out =0.6a i out =3.0a dc=continuous v e/s high- output enabled e/s open or high v e/s low- output disabled e/s forced low i e/s high- output enabled e/s open or high i e/s low- output disabled e/s forced low a v =1 v out= 50vp-p r l =8 ? v out =25v r l =1k ? a v =10 50v step group a subgroup - 1 2,3 - 1 - 1 1 - - 1 - 4 4 4 4 4 - - - - - 4 - typ. - 17 17 6 2 30 100 5 10 6 95 90 28 26 - - - -65 -70 1 3 10 98 15 min. 4 - - - - - - 1 - - 80 - 27 25.5 3 -27.5 - - - - - - 90 - min. 4 - - - - - - - - - 75 - 27 25 3 -27.5 - - - - - - 88 - max. 30 23 - - 15 - 750 75 - - - - - - - - -29 - - - - - - - typ. - 17 - 6 2 30 100 5 10 6 95 90 28 26 - - - -65 -70 1 3 8 98 18 units v ma ma ma mv v/c n a n a ? pf db nv/ h z v v a v v a a s s v/s db s msk182g/e 184g/e/185g/e msk182/msk183/ msk184/MSK185 parameter test conditions electrical specifications 1 notes: quiescent current (per amp) 3 quiescent current (per amp) v in =0v shutdown mode v in =0v 7 7 shutdown input output voltage swing 3 3 3 3 3 2 3 3 rev. i 3/04 3 7 7 7 7 storage temperature range lead temperature range (10 seconds) case operating temperature (msk182g/e/184g/e/185g/e) see note 9 (msk182/183/184/185) thermal resistance (per amplifier) msk182 - junction to case @ 125c msk183 - junction to case @ 125c msk184 - junction to case @ 125c MSK185 - junction to case @ 125c
application notes power supplies: for the msk 182/183/184/185 maximum total supply volt- age is specified as 60v. however, dual and unbalanced power supply operation is permissible as long as total supply voltage does not exceed 60v. power supply bypassing: power supply terminals must be effectively decoupled with a high and low frequency bypass circuit to avoid power supply induced oscillation. an effective decoupling scheme consists of a 0.1f ceramic capacitor in parallel with a 10f tantalum capacitor for each power supply pin to ground. in addition, it is recommended that a 0.01f capacitor be placed between vcc as close to the amplifiers as possible. compensation: for normal operation output compensation is not typically required. however, if the msk 182 or msk 183 is intended to be driven into current limit the user may find that an r/c net- work is required. a snubber network from the output to ground for each amplifier will provide stability. if driving large capaci- tive or inductive loads, a snubber network will also enhance stability. typically 3 ? to 10 ? in series with 0.01f is accept- able. current limit: the msk 182 and msk 183 offer accurate, user-selectable current limit. unlike typical designs that use a power resistor in series with the output to sense load, the msk 182 and msk 183 sense the load indirectly and therefore do not require a resistor to handle the full output current. current limit is se- lected by controlling the input to the i lim pin. the easiest method is to use a resistor or potentiometer connected between -vcc and the i lim pin. use the following equation to select proper resistor value: 71,250 i lim a low level control signal (0-330a) can also be used to con- trol the current level digitally. if the pin is left open, the current is programmed to oa, while connecting i lim directly to -vcc sets the output current to it's maximum, typically 5a. such is the case with the msk 184 or the msk 185. the amplifiers are equipped with thermal protection circuitry that protects each amplifier from damage caused by excessive junction temperature. the output is disabled when the junction temperature reaches approximately 160c. after the junction temperature cools to approximately 140c, the output is again enabled. the thermal protection may cycle on and off depend- ing on the output load and signal conditions; this may have an undesirable effect on the load. it should be noted that even though this internal protection circuitry does protect against overload conditions, it does not take the place of proper heat sinking. for reliable operation, junction temperature should be limited to 150c, maximum. typical connection diagram rev. i 3/04 4 safe operating area: the safe operating area curve is a graphical representation of the power handling capability of the amplifier under various conditions. power dissipation of the device is equal to the prod- uct of the voltage across the output transistor times the output current. as can be seen in the curve on page 6, safe operating current decreases with an increase in temperature as well as an increase in the voltage across the output transistor. therefore, for maximum amplifier performance it is important to keep case temperature as low as possible and to keep vcc as close to the output rail as achievable. thermal protection: for the msk 182 and msk 183 this pin actually has a dual function. first, when the pin is forced low, the output stage is disabled. second, it can be monitored to determine if the device is in thermal shutdown. these functions can be used on the same device with either single or dual supplies. for normal operation, the e/s pin must be left open or pulled at least 2.4 volts above the negative rail. in noisy applications, a small value capacitor between the e/s pin and -vcc may be required. to disable the output, the user must pull the e/s pin low, no greater than 0.8v above -vcc. to once again enable the device, the e/s pin must be brought at least 2.4 volts above -vcc or be disconnected. it should be noted that when the e/s pin is high, the internal thermal shutdown is still active. if the e/s pin is used to monitor thermal shutdown, during normal operation the voltage on the e/s pin is typically 3.5v above -vcc. once shutdown has occurred this voltage will drop to approximately 350mv above -vcc. this function is not avail- able on the msk 184 or the msk 185. enable/status pin: -13.75k ? rcc= the msk 185 is a hermetically sealed, hi-reliability, pin simi- lar replacement for the apex pa26. the supply voltage input and output pin configurations are identical. however, the v boost and i sense functions are not available with the msk 185. the v boost and i sense pins of the pa26 have no internal connec- tion on the msk 185. therefore, any external circuitry con- nected to pins 3,4,9 & 10 will not degrade the performance of the msk 185. the msk 185 also provides 4-40 isolated mounting studs in place of the mounting holes of the pa26. these mounting studs, which are brazed to the package bottom, offer excellent heat sink mounting performance while decreasing the potential amplifier/package damage sometimes experienced with mount- ing holes. apex pa26 replacement:
5 rev. i 3/04 application notes cont. figure 1 figure 3 figure 5 figure 6 figure 4 figure 2 output disable with a single supply adjustable current limit thermal shutdown status with a single supply voltage source parallel output for increased output current motor drive circuit
typical performance curves 6 rev. i 3/04
mechanical specifications esd triangle indicates pin 1. all dimensions are 0.010 inches unless otherwise labeled. rev. i 3/04 7 msk182 msk183 esd triangle indicates pin 1. all dimensions are 0.010 inches unless otherwise labeled.
note: the msk 183 is not available with e or g suffix. ordering information the information contained herein is believed to be accurate at the time of printing. msk reserves the right to make changes to its products or specifications without notice, however, and assumes no liability for the use of its products. please visit our website for the most recent revision of this datasheet. m.s. kennedy corp. 4707 dey road, liverpool, new york 13088 phone (315) 701-6751 fax (315) 701-6752 www.mskennedy.com msk 182 rev. i 3/04 8 g screening blank = industrial; e = extended reliability g = mil-prf-38534/dscc smd 5962-92152 (reduced temp range) general part number (msk182,183,184 or 185) mechanical specifications continued msk184 esd triangle indicates pin 1. all dimensions are 0.010 inches unless otherwise labeled. MSK185
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