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FEATURES
* RoHS COMPLIANT * LOW COST * WIDE BANDWIDTH - 1.1 Mhz * HIGH OUTPUT CURRENT - 1A per amplifier * WIDE COMMON MODE RANGE Includes negative supply * WIDE SUPPLY VOLTAGE RANGE Single supply: 5V to 40V Split supplies: 2.5V to 20V * LOW QUIESCIENT CURRENT * VERY LOW DISTORTION
12-PIN SIP PACKAGE STYLE EU
20-PIN PSOP PACKAGE STYLE DK
APPLICATIONS
* HALF AND FULL BRIDGE MOTOR DRIVERS * AUDIO POWER AMPLIFIER Stereo - 15.91W RMS per channel Bridge - 31.82W RMS per 2 channels * IDEAL FOR SINGLE SUPPLY SYSTEMS 5V - Peripherals 12V - Automotive 28V - Avionic
mil spacing. The heat tab of EU package is tied to -VS. The surface mount version of the PA60, the PA60DK, is available in a 20-Pin PSOP, JEDEC MO-166-AB package. The heat slug of the DK package is tied to -VS.
PACKAGING OPTIONS
* 20-Pin PSOP, JEDEC MO-166-AB (PA60DK) * 12-Pin Molded Plastic SIP (PA60EU)
FIGURE 2. Bi-directional speed control from a single supply
DESCRIPTION
The amplifier design is a dual power op amp on a single monolithic die. This approach provides a cost-effective solution to applications where multiple amplifiers are required or a bridge configuration is needed. Very low harmonic distortion of 0.02% THD and low IQ makes the PA60 a good solution for low power audio applications such as laptops and computer speakers.
TYPICAL APPLICATION
R1 and R2 set up Amplifier A as non-inverting. Amplifier B is set up as a unity gain inverter driven from the output of Amplifier A. Note that Amplifier B inverts the signals about the reference node, which is set at mid-supply by R5 and R6. When the command input is midrange, so is the output of Amplifier A. Since this is also equivalent to the reference node voltage, the output of Amplifier B is the same resulting in 0V across the motor. Inputs more positive than 5V result in motor current flow from left to right (see Figure 2). Inputs less than 5V drive the motor in the opposite direction. The amplifiers are especially well-suited for applications such as this. The extended common mode range allows command inputs as low as 0V. The output swing lets it drive within 2V of the supply at an output of 1A. This means that a command input that ranges from 0 to 10V will drive a 24V motor from full scale CCW to full scale CW at 1A.
FIGURE 1. Equivalent schematic (one channel) The dual output PA60 is available in two industry-standard packages. The through hole version of the PA60, the PA60EU, is available in a 12-Pin Molded Plastic SIP with standard 100
FIGURE 3. External connections
APEX MICROTECHNOLOGY CORPORATION * TELEPHONE (520) 690-8600 * FAX (520) 888-3329 * ORDERS (520) 690-8601 * EMAIL prodlit@apexmicrotech.com
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ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS
PA60
SUPPLY VOLTAGE, total OUTPUT CURRENT POWER DISSIPATION, internal (PA60EU, 1 amplifier) POWER DISSIPATION, internal (PA60DK, 1 amplifier) POWER DISSIPATION, internal (PA60EU, 2 amplifiers)4 POWER DISSIPATION, internal (PA60DK, 2 amplifiers)4 INPUT VOLTAGE, differential INPUT VOLTAGE, common mode JUNCTION TEMPERATURE, max.1 TEMPERATURE, pin solder - 10 secs max. TEMP RANGE STORAGE OPERATING TEMP RANGE, case1 MIN TYP 1 20 100 -Vs 60 60 50 90 90 68 22 100 1.4 65 13.6 1.0 1.5 Full temp range, IO = 100mA Full temp range, IO = 1A AV = 1, RL = 50, VO = .5VRMS, = 1kHz 1.0 |Vs| -1.1 |Vs| -1.8 1.4 |Vs| -0.8 |Vs| -1.4 .02 5V to 40V SOA 19.89W 17.46W 31.82W 25.60W Vs +Vs,-Vs-.5V 150C 220C -55C to 150C -40C to 125C MAX 15 500 +Vs - 1.3 UNTS mV V/C nA V dB dB dB nV/Hz dB MHz C kHz A A V/S V V %
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS (PER AMPLIFIER)
PARAMETER INPUT OFFSET VOLTAGE, initial OFFSET VOLTAGE, vs. temperature BIAS CURRENT, initial COMMON MODE RANGE COMMON MODE REJECTION, DC POWER SUPPLY REJECTION CHANNEL SEPARATION INPUT NOISE VOLTAGE GAIN OPEN LOOP GAIN GAIN BANDWIDTH PRODUCT PHASE MARGIN POWER BANDWIDTH OUTPUT CURRENT, peak (PA60DK) CURRENT, peak (PA60EU) SLEW RATE VOLTAGE SWING VOLTAGE SWING HARMONIC DISTORTION POWER SUPPLY VOLTAGE, Vss3 CURRENT, quiescent total THERMAL RESISTANCE, junction to case DC, 1 amplifier, (PA60EU) DC, 1 amplifier, (PA60DK) DC, 2 amplifiers, (PA60EU)4 DC, 2 amplifiers, (PA60DK)4 AC, 1 amplifier, (PA60EU) AC, 1 amplifier, (PA60DK) AC, 2 amplifiers, (PA60EU)4 AC, 2 amplifiers, (PA60DK)4 RESISTANCE, junction to air (PA60EU) RESISTANCE, junction to air (PA60DK)6
TEST CONDITIONS1,2
Full temp range Full temp range Full temp range IOUT = 500mA, = 1kHz RS = 100, = 1 to 100kHz VO = 10V, RL = 2.0K = 100kHz, CL = 100pF, RL = 2.0K Full temp range, CL = 100pF, RL = 2K VO(P-P) = 28V
89 0.9
5
30 8
40 10
V mA
5.71 6.51 3.57 4.44 4.29 4.88 2.68 3.33 30 25
6.29 7.16 3.93 4.88 4.71 5.37 2.95 3.66
C/W C/W C/W C/W C/W C/W C/W C/W C/W C/W
Notes:
1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. 2. Unless otherwise noted, the following conditions apply: VS = 15V, T C =25C. 3. +VS and -VS denote the positive and negative rail respectively. VSS denotes total rail-to-rail supply. 4. Rating applies when power dissipation is equal in each of the amplifiers. 5. If -VS is disconnected before +VS, a diode between -Vs and ground is recommended to avoid damage. 6. Rating applies when the hesatslug of the DK package is soldered to a minimum of 1 square inch foil area of a printed circuit board.
APEX MICROTECHNOLOGY CORPORATION * 5980 NORTH SHANNON ROAD * TUCSON, ARIZONA 85741 * USA * APPLICATIONS HOTLINE: 1 (800) 546-2739
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PA60
TYPICAL PERFORMANCE GRAPHS
APEX MICROTECHNOLOGY CORPORATION * TELEPHONE (520) 690-8600 * FAX (520) 888-3329 * ORDERS (520) 690-8601 * EMAIL prodlit@apexmicrotech.com
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GENERAL CONSIDERATIONS
PA60
THERMAL CONSIDERATIONS
The PA60EU has a large exposed copper heat tab to which the monolithic is directly attached. The PA60EU may require a thermal washer, which is electrically insulating since the tab is directly tied to -VS. This can result in a thermal impedance RCS of up to 1C/W or greater. The PA60DK has a large exposed integrated copper heatslug to which the monolithic is directly attached. The solder connection of the heatslug to a minimum of 1 square inch foil area of the printed circuit board will result in thermal performance of 25C/W junction to air rating of the PA60DK. Solder connection to an area of 1 to 2 square inches of foil is required for minimal power applications Where the PA60DK is used in higher power applications, it is necessary to use surface mount techniques of heatsinking. Surface mount techniques include the use of a surface mount fan in combination with a surface mount heatsink on the backside of the FR4/ PC board with through hole thermal vias. Other highly thermal conductive substrate board materials are available for maximum heat sinking.
GENERAL
Please read Application Note 1 "General Operating Considerations" which covers stability, supplies, heatsinking, mounting, SOA interpretation, and specification interpretation. Visit www. apexmicrotech.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, heatsink selection; Apex's complete Application Notes library; Technical Seminar Workbook; and Evaluation Kits.
STABILITY CONSIDERATIONS
All monolithic power op amps use output stage topologies that present special stability problems. This is primarily due to non-complementary (both devices are NPN) output stages with a mismatch in gain and phase response for different polarities of output current. It is difficult for the op amp manufacturer to optimize compensation for all operating conditions.
MOUNTING PRECAUTIONS
1. Always use a heat sink. Even unloaded the PA60DK and PA60EU can dissipate up to .4 watts. 2. Avoid bending the leads. Such action can lead to internal damage. 3. Always fasten the tab of the EU package to the heat sink before the leads are soldered to fixed terminals. 4. Strain relief must be provided if there is any probability of axial stress to the leads.
SAFE OPERATING AREA (SOA)
The SOA curves combine the effect of all limits for this power op amp. For a given application, the direction and magnitude of the output current should be calculated or measured and checked against the SOA curves. This is simple for resistive loads but more complex for reactive and EMF generating loads. The following guidelines may save extensive analytical efforts.
This data sheet has been carefully checked and is believed to be reliable, SHANNON ROAD * is assumed ARIZONA 85741 omissions. All specifications are subject 1 (800) 546-2739 APEX MICROTECHNOLOGY CORPORATION * 5980 NORTH however, no responsibility TUCSON, for possible inaccuracies*orUSA * APPLICATIONS HOTLINE:to change without notice.
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PA60U REV F MARCH 2006 (c) 2006 Apex Microtechnology Corp.

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