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Details, datasheet, quote on part number:PA34CX
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Datasheet text preview:
POWER OPERATIONAL AMPLIFIER
PA34
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM
(800) 546-APEX
(800) 546-2739
FEATURES
· LOW COST · WIDE COMMON MODE RANGE Includes negative supply · WIDE SUPPLY VOLTAGE RANGE Single supply: 5V to 40V Split supplies: ±2.5V to ±20V · HIGH EFFICIENCY -- |Vs2.8V| at 2.5A typ · HIGH OUTPUT CURRENT -- 2.5A min · INTERNAL CURRENT LIMIT · LOW DISTORTION · PACKAGING OPTIONS 7 TO-220 Plastic Package (PA34CD) 7 TO-220 with Staggered Lead Form (PA34CX) 7 DDPAK Surface Mount Package (PA34CC)
TYPICAL APPLICATION
Ref: APPLICATION NOTE 20: "Bridge Mode Operation of Power Amplifiers" R2 9K +28V R1 5K Unit A + PA34 1 .1µF R3 10K R4 10K Unit B + PA34 1 .1µF +28V
APPLICATIONS
· HALF & FULL BRIDGE MOTOR DRIVERS · AUDIO POWER AMPLIFIER · IDEAL FOR SINGLE SUPPLY SYSTEMS 5V Peripherals, 12V Automotive, 28V Avionic
M
R5 10K
DESCRIPTION
The PA34 consists of a monolithic power operational amplifier in three standard package designs. The surface mount version of the PA34, the PA34CC, is an industry standard non-hermetic plastic 7-pin DDPAK. The through hole versions of the PA34, the PA34CD and PA34CX, are industry standard non-heremetic plastic 7-pin TO-220 packages. The PA34CX is a staggered lead formed PA34CD and offers industry standard 100 mil spacing. This allows for easier PC board layout. (Please reference to the lead form datasheet drawing LF005 for package dimensions of the PA34CX. The wide common mode input range includes the negative rail, facilitating single supply applications. It is possible to have a "ground based" input driving a single supply amplifier with ground acting as the "second" or "bottom" supply of the amplifier. The output stage is also well protected. They possess internal current limit circuits. While the device is well protected, the Safe Operating Area (SOA) curve must be observed. Proper heatsinking is required for maximum reliability. The monolithic amplifier is directly attached to the metal tabs of the PA34CC, PA34CD, and PA34CX. The metal tabs are directly tied to -Vs.
COMMAND INPUT 0/10V
R6 10K
BIDIRECTIONAL MOTOR DRIVE
R1 and R2 set up amplifier A in a non-inverting gain of 2.8. Amp B is set up as a unity gain inverter driven from the output of amp A. Note that amp B inverts signals about the reference node, which is set at mid-supply (14V) by R5 and R6. When the command input is 5V, the output of amp A is 14V. Since this is equal to the reference node voltage, the output of amp B is also 14V, resulting in 0V across the motor. Inputs more positive than 5V result in motor current flow from left to right. Inputs less positive than 5V drive the motor in the opposite direction. (See PA21/25/26/37 Datasheet for additional application description.)
EXTERNAL CONNECTIONS
PA34CD PA34CC PA34CX
EQUIVALENT SCHEMATIC
VBOOST
+ VS
IN
+IN
OUT
+IN IN Vboost Vs Isense OUT +Vs
ISENSE RS
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
+IN IN Vboost Vs Isense OUT +Vs
VS
+IN IN Vboost Vs Isense OUT +Vs
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PA 34
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, total OUTPUT CURRENT POWER DISSIPATION, internal INPUT VOLTAGE, differential INPUT VOLTAGE, common mode JUNCTION TEMPERATURE, max1 TEMPERATURE, pin solder--10 sec max TEMPERATURE RANGE, storage OPERATING TEMPERATURE RANGE, case
ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS
5V to 40V SOA 18.5W ±VS +VS, -VS.5V 150°C 220°C 65°C to 150°C 40°C to 125°C
SPECIFICATIONS
PARAMETER INPUT OFFSET VOLTAGE, initial OFFSET VOLTAGE, vs. temperature BIAS CURRENT, initial COMMON MODE RANGE COMMON MODE REJECTION, DC POWER SUPPLY REJECTION GAIN OPEN LOOP GAIN GAIN BANDWIDTH PRODUCT PHASE MARGIN POWER BANDWIDTH OUTPUT CURRENT, peak SLEW RATE CAPACITIVE LOAD DRIVE VOLTAGE SWING VOLTAGE SWING VOLTAGE SWING POWER SUPPLY VOLTAGE, VSS3 CURRENT, quiescent, total THERMAL RESISTANCE, DC junction to case RESISTANCE, AC junction to case RESISTANCE, junction to air (CD,CX) RESISTANCE, junction to air (CC)4 TEMPERATURE RANGE, case 5 2.5 .5 AV = 1 Full temp. range, IO = 100mA Full temp. range, IO = 1A IO = 2.5A |VS| 1.0 |VS| 1.8 |VS| 3.0 Full temperature range AV = 40dB Full temperature range VO(P-P) = 28V 80 Full temperature range Full temperature range Full temperature range Full temperature range 35 VS.3 60 60 TEST CONDITIONS 2 MIN
PA34 TYP MAX UNITS
1.5 15 1000 85 80
10 +VS2
mV µV/°C nA dB dB dB
100 600 65 13.6
dB kHz ° kHz
1.2 .22 |VS| 0.8 |VS| 1.4 |VS| 2.8
A V/µs µF V V V
30 45
40 90
V mA
5.44 4.08 60 27 Meets full range specifications 25
6.8 5.1 85
°C/W °C/W °C/W °C/W °C
NOTES: 1. 2. 3. 4. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. Unless otherwise noted, the following conditions apply: ±VS = ±15V, TC = 25°C. +VS and VS denote the positive and negative supply rail respectively. VSS denotes the total rail-to-rail supply voltage. Heat tab attached to 3/32" FR-4 board with 2oz. copper. Topside copper area (heat tab directly attached) = 1000 sq. mm, backside copper area = 2500 sq. mm, board area = 2500 sq. mm.
APEX MICROTECHNOLOGY CORPORATION · 5980 NORTH SHANNON ROAD · TUCSON, ARIZONA 85741 · USA · APPLICATIONS HOTLINE: 1 (800) 546-2739
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TYPICAL PERFORMANCE GRAPHS
PA34
NORMALIZED BIAS CURRENT, I B (X)
INTERNAL POWER DISSIPATION, P(W)
POWER DERATING
20 18 16 14 12 10 8 6 4 2 0 0 25 50 75 100 125 JUNCTION TEMPERATURE, T (°C)
BIAS CURRENT
1.75 1.5 1.25 1.0 .75 .5 .25 50 25 0 25 50 75 100 125 CASE TEMPERATURE, TC (°C) 0 30 60 OUTPUT VOLTAGE, VO (VPP ) 50 40 30 25 20 15 10
POWER RESPONSE
|+VS | + |V | = 40V S 5 1K
10K FREQUENCY, F (Hz)
100K
SMALL SIGNAL RESPONSE
100 OPEN LOOP GAIN, A (dB) 80 PHASE, (°) 60 40 20 0 1 10 100 1K 10K 100K 1M FREQUENCY, F (Hz)
PHASE RESPONSE
90 120 150 180 210 0 10 100 1K 10K .1M FREQUENCY, F (Hz) 1M
20
POWER SUPPLY REJECTION, PSR (dB)
VOLTAGE DROP FROM SUPPLY, (V)
POWER SUPPLY REJECTION
89 83 80 77 74 71 69 66 63 60 0 10 100 1K 10K 100K 1M FREQUENCY, F (Hz) OUTPUT VOLTAGE, VO (V) 86 10 5 0
PULSE RESPONSE
AV = 1 R L =10
3.5 3 2.5 2 1.5 1 .5 0 0
OUTPUT VOLTAGE SWING
5
10 0 200 400 600 TIME, t (µs) 800 1K
.5 1 1.5 2 2.5 3 OUTPUT CURRENT, I (A)
O
3.5
TOTAL HARMONIC DISTORTION, THD (%)
1
AV = 10 V OUT = 16VPP RL = 8
TOTAL SUPPLY VOLTAGE, VSS (V)
3
HARMONIC DISTORTION
40 35 30 25 20 15 10
QUIESCENT CURRENT
125 100 75 50 25 0 CASE TEMPERATURE, TC (°C)
.1
.01
25
.001 10
100 1K 10K 40K FREQUENCY, F (Hz)
5 50 .7 .8 .9 1 1.1 1.2 1.3 1.4 NORMALIZED QUIESCENT CURRENT, I Q (X)
APEX MICROTECHNOLOGY CORPORATION · TELEPHONE (520) 690-8600 · FAX (520) 888-3329 · ORDERS (520) 690-8601 · EMAIL prodlit@apexmicrotech.com
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