PA10.pdf 데이터시트 (총 4 페이지) - 파일 다운로드 PA10 데이타시트 다운로드

No Preview Available !

MICROTECHNOLOGY
POWER OPERATIONAL AMPLIFIERS
PA10 • PA10A
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEATURES
• GAIN BANDWIDTH PRODUCT — 4MHz
• TEMPERATURE RANGE — –55 to +125° C (PA10A)
• EXCELLENT LINEARITY — Class A/B Output
• WIDE SUPPLY RANGE — ±10V to ±50V
• HIGH OUTPUT CURRENT — ±5A Peak
APPLICATIONS
• MOTOR, VALVE AND ACTUATOR CONTROL
• MAGNETIC DEFLECTION CIRCUITS UP TO 4A
• POWER TRANSDUCERS UP TO 100kHz
• TEMPERATURE CONTROL UP TO 180W
• PROGRAMMABLE POWER SUPPLIES UP TO 90V
• AUDIO AMPLIFIERS UP TO 60W RMS
DESCRIPTION
The PA10 and PA10A are high voltage, high output current
operational amplifiers designed to drive resistive, inductive and
capacitive loads. For optimum linearity, the output stage is
biased for class A/B operation. The safe operating area (SOA)
can be observed for all operating conditions by selection of user
programmable current limiting resistors. Both amplifiers are
internally compensated for all gain settings. For continuous
operation under load, a heatsink of proper rating is recom-
mended.
This hybrid integrated circuit utilizes thick film (cermet)
resistors, ceramic capacitors and semiconductor chips to maxi-
mize reliability, minimize size and give top performance. Ultra-
sonically bonded aluminum wires provide reliable interconnec-
tions at all operating temperatures. The 8-pin TO-3 package is
hermetically sealed and electrically isolated. The use of com-
pressible isolation washers voids the warranty.
EQUIVALENT SCHEMATIC
3
D1
Q1
Q2A
Q2B
2
Q3
4
A1
5 C1
6
Q4
Q5
Q6B
Q6A
1
7
8
TYPICAL APPLICATION
R2A
+42V
R1A .82
PA10
CONTROL
R1B
–42V
.82
RS
R2B
LOAD
0-24
FIGURE 1. VOLTAGE-TO-CURRENT CONVERSION
DC and low distortion AC current waveforms are delivered
to a grounded load by using matched resistors (A and B
sections) and taking advantage of the high common mode
rejection of the PA10.
Foldover current limit is used to modify current limits based
on output voltage. When load resistance drops to 0, the current
is limited based on output voltage. When load resistance
drops to 0, the current limit is 0.79A resulting in an internal
dissipation of 33.3 W. When output voltage increases to 36V,
the current limit is 1.69A. Refer to Application Note 9 on
foldover limiting for details.
EXTERNAL CONNECTIONS
+VS
3
CL+
2
OUT
1
+IN 4
TOP VIEW
R CL+
IN 5
6
VS
7
FO
8
CL
R CL
OUTPUT
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

No Preview Available !

PA10 PA10A
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to VS
OUTPUT CURRENT, within SOA
100V
5A
POWER DISSIPATION, internal
67W
INPUT VOLTAGE, differential
INPUT VOLTAGE, common mode
TEMPERATURE, pin solder - 10s
±VS 3V
±VS
300°C
TEMPERATURE, junction1
200°C
TEMPERATURE RANGE, storage
65 to +150°C
OPERATING TEMPERATURE RANGE, case 55 to +125°C
SPECIFICATIONS
PARAMETER
TEST CONDITIONS 2, 5
INPUT
OFFSET VOLTAGE, initial
OFFSET VOLTAGE, vs. temperature
OFFSET VOLTAGE, vs. supply
OFFSET VOLTAGE, vs. power
BIAS CURRENT, initial
BIAS CURRENT, vs. temperature
BIAS CURRENT, vs. supply
OFFSET CURRENT, initial
OFFSET CURRENT, vs. temperature
INPUT IMPEDANCE, DC
INPUT CAPACITANCE
COMMON MODE VOLTAGE RANGE3
COMMON MODE REJECTION, DC3
GAIN
TC = 25°C
Full temperature range
TC = 25°C
TC = 25°C
TC = 25°C
Full temperature range
TC = 25°C
TC = 25°C
Full temperature range
TC = 25°C
TC = 25°C
Full temperature range
Full temp. range, VCM = ±VS 6V
OPEN LOOP GAIN at 10Hz
OPEN LOOP GAIN at 10Hz
GAIN BANDWIDTH PRODUCT @ 1MHz
POWER BANDWIDTH
PHASE MARGIN
TC = 25°C, 1Kload
Full temp. range, 15load
TC = 25°C, 15load
TC = 25°C, 15load
Full temp. range, 15load
OUTPUT
VOLTAGE SWING3
VOLTAGE SWING3
VOLTAGE SWING3
CURRENT, peak
SETTLING TIME to .1%
SLEW RATE
CAPACITIVE LOAD
CAPACITIVE LOAD
CAPACITIVE LOAD
POWER SUPPLY
TC = 25°C, IO = 5A
Full temp. range, IO = 2A
Full temp. range, IO = 80mA
TC = 25°C
TC = 25°C, 2V step
TC = 25°C
Full temperature range, AV = 1
Full temperature range, AV = 2.5
Full temperature range, AV > 10
VOLTAGE
CURRENT, quiescent
THERMAL
Full temperature range
TC = 25°C
RESISTANCE, AC, junction to case4
RESISTANCE, DC, junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
TC = 55 to +125°C, F > 60Hz
TC = 55 to +125°C
TC = 55 to +125°C
Meets full range specifications
PA10
PA10A
MIN TYP MAX MIN TYP MAX UNITS
±VS5
74
±2
±10
±30
±20
12
±50
.±10
±12
±50
200
3
±VS3
100
±6
±65
±200
30
±500
±30
*
*
±1 ±3 mV
* ±40 µV/°C
* * µV/V
* µVW
10 20 nA
* * pA/°C
* pA/V
±5 ±10 nA
* pA/°C
* M
* pF
*V
* dB
110
96 108
4
10 15
20
*
**
*
**
*
dB
dB
MHz
kHz
°
±VS8
±VS6
±VS5
5
2
±VS5
2
3
±VS6
*
*
*
.68
10
SOA
*
*
*
*
V
V
V
A
µs
V/µs
* nF
* nF
* nF
±10 ±40 ±45
8 15 30
*
*
* ±50 V
* * mA
1.9 2.1
* * °C/W
2.4 2.6
* * °C/W
30 * °C/W
25
+85 55
+125 °C
NOTES: *
1.
2.
3.
4.
5.
The specification of PA10A is identical to the specification for PA10 in applicable column to the left.
Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation
to achieve high MTTF.
The power supply voltage for all tests is ±40, unless otherwise noted as a test condition.
+VS and VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to VS.
Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz.
Full temperature range specifications are guaranteed but not tested.
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.
APEX MICROTECHNOLOGY CORPORATION 5980 NORTH SHANNON ROAD TUCSON, ARIZONA 85741 USA APPLICATIONS HOTLINE: 1 (800) 546-2739

No Preview Available !

TYPICAL PERFORMANCE
GRAPHS
PA10 PA10A
POWER DERATING
70
60
T = TC
50
40
30
PA10 PA10A
20
10 T = TA
0
0 20 40 60 80 100 120 140
TEMPERATURE, T (°C)
SMALL SIGNAL RESPONSE
120
100
80
60
40
20
0
20
1
10 100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
BIAS CURRENT
2.5
2.2
1.9
1.6
1.3
1.0
.7
.4
50 25 0 25 50 75 100 125
CASE TEMPERATURE, TC (°C)
PHASE RESPONSE
0
30
60
90
120
150
180
210
0 10 100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
CURRENT LIMIT
3.5
3.0
2.5 R CL = 0.3
2.0
1.5 R CL = 0.6
1.0
.5
0
50 25 0 25 50 75 100 125
CASE TEMPERATURE, TC (°C)
POWER RESPONSE
100
|+VS | + |VS | = 100V
68
46 |+VS | + |VS | = 80V
32
22
15 |+VS | + |VS | = 30V
10
6.8
4.6
10K
20K 30K 50K 70K .1M
FREQUENCY, F (Hz)
COMMON MODE REJECTION
120
100
80
60
40
20
0
0 10 100 1K 10K .1M 1M
FREQUENCY, F (Hz)
HARMONIC DISTORTION
3
AV =10
1 VS = ±38V
R L =8
.3
.1
.03
=
PO
50mW
=
PO
2W
.01
= 60W
PO
.003
100 300 1K 3K 10K 30K .1M
FREQUENCY, F (Hz)
PULSE RESPONSE
8
6 VIN = ±5V, t r = 100ns
4
2
0
2
4
6
8
0 2 4 6 8 10 12
TIME, t (µs)
QUIESCENT CURRENT
1.6
1.4 TC = -25°C
1.2
1.0 TC = 25°C
TC = 85°C
.8
.6 TC = 125°C
.4
40 50 60 70 80 90 100
TOTAL SUPPLY VOLTAGE, VS (V)
INPUT NOISE
100
70
50
40
30
20
10
10
100 1K 10K
FREQUENCY, F (Hz)
.1M
OUTPUT VOLTAGE SWING
6
5 TC = 25°C
4 VO TC = 25 to 85°C
3
2
+VO TTCC==2255°toC85°C
1
01234 5
OUTPUT CURRENT, I O (A)
APEX MICROTECHNOLOGY CORPORATION TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com

No Preview Available !

PA10 PA10A
OPERATING
CONSIDERATIONS
GENERAL
Please read Application Note 1 "General Operating Consider-
ations" 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; Apexs complete Application
Notes library; Technical Seminar Workbook; and Evaluation Kits.
SAFE OPERATING AREA (SOA)
The output stage of most power amplifiers has three distinct
limitations:
1. The current handling capability of the transistor geometry and
the wire bonds.
2. The second breakdown effect which occurs whenever the
simultaneous collector current and collector-emitter voltage
exceeds specified limits.
3. The junction temperature of the output transistors.
5.0
4.0
3.0
2.0
1.5
1.0
.8
Tc = 85°C steady
TTcH=ER12M5A°CL
state
t = 5ms
SECOND
t
=
t=
1ms
0.5ms
BREAKDOWN
.6
.4
.3
.2
10 15 20 25 30 35 40 50 60 70 80 100
SUPPLY TO OUTPUT DIFFERENTIAL VOLTAGE VS VO (V)
The SOA curves combine the effect of these limits. 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.
1. For DC outputs, especially those resulting from fault condi-
tions, check worst case stress levels against the new SOA
graph.
For sine wave outputs, use Power Design1 to plot a load line.
Make sure the load line does not cross the 0.5ms limit and that
excursions beyond any other second breakdown line do not
exceed the time label, and have a duty cycle of no more than
10%.
For other waveform outputs, manual load line plotting is
recommended. Applications Note 22, SOA AND LOAD LINES,
will be helpful. A Spice type analysis can be very useful in that
a hardware setup often calls for instruments or amplifiers with
wide common mode rejection ranges.
2. The amplifier can handle any EMF generating or reactive load
and short circuits to the supply rail or shorts to common if the
current limits are set as follows at TC = 85°C:
1 Note 1. Power Design is a self-extracting Excel spreadsheet
available free from www.apexmicrotech.com
SHORT TO ±VS
SHORT TO
±VS
C, L, OR EMF LOAD
COMMON
50V .21A
.61A
40V .3A
35V .36A
30V .46A
25V .61A
20V .87A
15V 1.4A
.87A
1.0A
1.4A
1.7A
2.2A
2.9A
CURRENT LIMITING
Refer to Application Note 9, "Current Limiting", for details of both
fixed and foldover current limit operation. Visit the Apex web site
at www.apexmicrotech.com for a copy of the Power Design
spreadsheet (Excel) which plots current limits vs. steady state
SOA. Beware that current limit should be thought of as a +/20%
function initially and varies about 2:1 over the range of 55°C to
125°C.
For fixed current limit, leave pin 7 open and use equations 1 and 2.
RCL = 0.65/LCL
ICL = 0.65/RCL
(1)
(2)
Where:
ICL is the current limit in amperes.
RCL is the current limit resistor in ohms.
For certain applications, foldover current limit adds a slope to
the current limit which allows more power to be delivered to the
load without violating the SOA. For maximum foldover slope,
ground pin 7 and use equations 3 and 4.
ICL =
0.65 + (Vo * 0.014)
RCL
(3)
RCL =
0.65 + (Vo * 0.014)
ICL
(4)
Where:
Vo is the output voltage in volts.
Most designers start with either equation 1 to set RCL for the
desired current at 0v out, or with equation 4 to set RCL at the
maximum output voltage. Equation 3 should then be used to plot
the resulting foldover limits on the SOA graph. If equation 3 results
in a negative current limit, foldover slope must be reduced. This
can happen when the output voltage is the opposite polarity of the
supply conducting the current.
In applications where a reduced foldover slope is desired, this
can be achieved by adding a resistor (RFO) between pin 7 and
ground. Use equations 4 and 5 with this new resistor in the circuit.
0.65 + Vo * 0.14
ICL =
10.14 + RFO
RCL
(5)
RCL =
0.65 + Vo * 0.14
10.14 + RFO
ICL
Where:
RFO is in K ohms.
(6)
ATPhiEs XdatMa IshCeRetOhTaEsCbHeeNn OcaLreOfuGllYy cCheOcRkePdOaRndAiTs IbOelNieved 5to9b8e0relNiaOblReT, hHowSeHveAr,NnNoOreNspoRnOsiAbiDlityisTaUssCuSmOedNf,orApRosIsZibOleNiAnac8c5ur7a4ci1es or oUmSiAssionsA. APlPl sLpIeCcAifiTcaItOioNnSs aHreOsTubLjIeNctEt:o c1ha(n8g0e 0w)ith5o4ut6n-o2t7ic3e.9
PA10U REV. M FEBRURAY 2001 © 2001 Apex Microtechnology Corp.