PA52 [APEX]
POWER OPERATIONAL AMPLIFIERS; 功率运算放大器
| 型号： | PA52 |
| 厂家： | 
CIRRUS LOGIC |
| 描述： | POWER OPERATIONAL AMPLIFIERS |
| 文件： | 总4页 (文件大小：211K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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FEATURES
• HIGH INTERNAL DISSIPATION — 400 Watts
• HIGH CURRENT — 40A Continuous, 80A PEAK
• HIGH SLEW RATE — 50V/µs
• OPTIONAL BOOST VOLTAGE INPUTS
APPLICATIONS
• SEMI-CONDUCTOR TESTING
12-PIN DIP
PACKAGE STYLE CR
DESCRIPTION
The PA52 is a MOSFET power operational amplifier that
extends the performance limits of power amplifiers in slew
rate and power bandwidth, while maintaining high current and
power dissipation ratings.
The JEDEC MO-127 12-pin Power Dip™ package (see
Package Outlines) is hermetically sealed and isolated from
the internal circuits. The use of compressible thermal washers
and/orimpropermountingtorquewillvoidtheproductwarranty.
Please see “General Operating Considerations”.
Boost voltage inputs allow the small signal portion of the
amplifier to operate at a higher voltage than the high current
output stage. The amplifier is then biased to achieve close
linear swings to the supply rails at high currents for extra ef-
ficient operation.
EXTERNAL CONNECTIONS
EQUIVALENT SCHEMATIC
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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
1
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
PA52 • PA52A
SUPPLY VOLTAGE, +VS to –VS
BOOST VOLTAGE, +Vb to -Vb
OUTPUT CURRENT, within SOA
POWER DISSIPATION, internal
INPUT VOLTAGE, differential
INPUT VOLTAGE, common mode
TEMPERATURE, pin solder - 10s
TEMPERATURE, junction2
200V
230V
80A
400W
±20V
±Vb
300°C
150°C
ABSOLUTE MAXIMUM RATINGS
TEMPERATURE, storage
OPERATING TEMPERATURE RANGE, case
–65 to +150°C
–55 to +125°C
SPECIFICATIONS
PA52
TYP
PA52A
TYP
PARAMETER
TEST CONDITIONS1
MIN
MAX
MIN
MAX UNITS
INPUT
OFFSET VOLTAGE, initial
OFFSET VOLTAGE, vs. temperature
OFFSET VOLTAGE, vs. supply
BIAS CURRENT, initial
5
10
50
30
50
2
*
*
*
*
*
*
*
5
*
*
mV
µV/°V
µV/V
pA
pA/V
pA
Full temperature range
20
10
10
.01
10
10"
13
*
BIAS CURRENT vs. supply
OFFSET CURRENT, initial
INPUT IMPEDANCE, DC
IMPUT CAPACITANCE
50
*
Ω
pF
COMMON MODE VOLTAGE RANGE
Full temperature range
-VB +12
+VB -14
90
*
*
V
dB
µVrms
COMMON MODE REJECTION,DC
INPUT NOISE
Full temp, range, VCM= ±20V
100KHZ BW, Rs=1KΩ
100
10
*
*
*
GAIN
OPEN LOOP,@ 15Hz
GAIN BANDWIDTH PRODUCT
POWER BANDWIDTH
Full temperature range
RL=10Ω
RL=4Ω, Vo=180VP-P, Av=-10
Full temperature range
94
102
3
90
*
*
*
dB
MHz
kHz
OUTPUT
±
±
±
±
VOLTAGE SWING
VOLTAGE SWING, PA52
VOLTAGE SWING, PA52A
CURRENT, peak
SETTLING TIME TO.1%
SLEW RATE
Io=40A
±VS 9.5 ±VS 8.0
*
*
V
V
V
±VBOOST=±VS±10V, Io=40A
±VBOOST=±VS±10V, Io=50A
3ms 10% Duty Cycle
AV= -10,10V STEP,RL=4Ω
AV=-10
±VS 5.8 ±VS 4.0
±
±
±VS 5.8 ±VS 5.0
80
*
*
*
*
A
1
µs
V/µs
Ω
50
2.5
RESISTANCE
IO=0, NO LOAD, 2MHZ
POWER SUPPLY
VOLTAGE, ±VBOOST
Full temperature range
Full temperature range
+14, -12
±3
±30
±115
±100
32
*
*
*
*
*
*
*
V
V
mA
mA
VOLTAGE, ±VS
CURRENT,quiescent, boost supply
CURRENT, quiescent, total
26
30
*
*
36
THERMAL
RESISTANCE,AC,junction to case3
RESISTANCE,DC,junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
Full temperature range, F>60HZ
Full temperature range, F>60HZ
Full temperature range
.2
.25
12
.25
.31
*
*
*
*
*
°C/W
°C/W
°C/W
°C
Meets full range specification
-25
85
*
*
NOTES:
*
The specification of PA52A is identical to the specification for PA52 in applicable column to the left
1. Unless otherwise noted: TC = 25°C, DC input specifications are ± value given. Power supply voltage is typical rating.
±VBOOST = ±VS.
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.
The PA52 is constructed from MOSFET transistors. ESD handling procedures must be observed.
CAUTION
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 850°C to avoid generating toxic fumes.
2APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
TYPICAL PERFORMANCE
GRAPHS
PA52 • PA52A
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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
3
OPERATING
CONSIDERATIONS
PA52 • PA52A
GENERAL
COMPENSATION
Compensation is internally fixed for a gain of 3 or more and
is not adjustable by the user. The PA52 therefore is not unity
gain stable.
Please read Application Note 1 "General Operating Con-
siderations" which covers stability, supplies, heat sinking,
mounting, current limit, SOA interpretation, and specification
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;
Apex’s complete Application Notes library; Technical Seminar
Workbook; and Evaluation Kits.
POWER SUPPLY BYPASSING
Proper and sufficient power supply bypassing is crucial to
proper operation of the PA52. Bypass the +Vb and -Vb supply
pins with a minimum .1µF ceramic capacitors directly at the
supply pins. On the +Vs and -Vs pins use a combination of
ceramic and electrolytic capacitors. Use 1µF ceramic capaci-
tors and an electrolytic capacitor at least 10µF for each amp
of output current required.
CURRENT LIMIT
There is no internal circuit provision for current limit in the
PA52. However, the PA52 circuit board in the PA52 evaluation
kit does provide a means whereby the output current can be
sensed. An external circuit current limit can thereby be imple-
mented if needed. See EK27 data sheet for more details.
BOOST OPERATION
With the VBOOST feature the small signal stages of the
amplifier are operated at higher supply voltages than the
amplifier’s high current output stage. +VBOOST (pin 11) and
–VBOOST (pin 12) are connected to the small signal circuitry of
the amplifier. +VS (pin 9,10) and –VS (pin 3,4) are connected to
the high current output stage. An additional 10V on the VBOOST
pins is sufficient to allow the small signal stages to drive the
outputtransistorsintosaturationandimprovetheoutputvoltage
swing for extra efficient operation when required. When close
swings to the supply rails is not required the +VBOOST and +VS
pins must be strapped together as well as the –VBOOST and –VS
pins. The boost voltage pins must not be at a voltage lower
than the VS pins.
This data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. All specifications are subject to change without notice.
4RCOOORTO• 50 OTOD C, AZOA 84• AIAIOTI: () 67
PA52U REV D APRIL 2003
© 2003 Apex Microtechnology Corp.
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