datasheet for PA10A by Apex Microtechnology

datasheet for PA10A by Apex Microtechnology
PA10PA10
• PA10A
• PA10A
PA10, PA10A
Power Operational Amplifier
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
8-PIN TO-3
PACKAGE STYLE CE
TYPICAL APPLICATION
R2A
+42V
DESCRIPTION
CONTROL
–42V
R2B
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.
Q2B
Q1
2
EXTERNAL CONNECTIONS
Q3
FO
Q4
CL–
1
8
4
A1
5
Q6A
Q6B
–VS
6
5 –IN
TOP VIEW
4
OUTPUT
OUT
C1
RCL+
6
www.apexanalog.com
PA10U
7
8
RCL-
7
Q5
LOAD
0-24
.82
R1B
3
Q2A
RS
PA10
EQUIVALENT SCHEMATIC
D1
.82
R1A
The PA10 and PA10A are high voltage, high output current
operational ampliiers 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
ampliiers are internally compensated for all gain settings. For
continuous operation under load, a heatsink of proper rating
is recommended.
This hybrid integrated circuit utilizes thick ilm (cermet)
resistors, ceramic capacitors and semiconductor chips to
maximize reliability, minimize size and give top performance.
Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3
package is hermetically sealed and electrically isolated. The
use of compressible isolation washers voids the warranty.
Copyright © Apex Microtechnology, Inc. 2012
(All Rights Reserved)
1
2
CL+
+IN
3
+VS
SEP 2012
1
PA01U REVV
PA10 • PA10A
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –VS
OUTPUT CURRENT, within SOA
POWER DISSIPATION, internal
INPUT VOLTAGE, differential
INPUT VOLTAGE, common mode
TEMPERATURE, pin solder - 10s
TEMPERATURE, junction1
TEMPERATURE RANGE, storage
OPERATING TEMPERATURE RANGE, case
SPECIFICATIONS
TEST CONDITIONS 2, 5
PARAMETER
MIN
PA10
TYP
±VS–5
74
±2
±10
±30
±20
12
±50
.±10
±12
±50
200
3
±VS–3
100
100V
5A
67W
±37V
±VS
350°C
200°C
–65 to +150°C
–55 to +125°C
MAX
MIN
PA10A
TYP
*
*
±1
*
*
*
10
*
*
±5
*
*
*
*
*
MAX
UNITS
±4
±40
*
mV
µV/°C
µV/V
µVW
nA
pA/°C
pA/V
nA
pA/°C
MΩ
pF
V
dB
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
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
±6
±65
±200
30
±500
±30
20
*
±10
GAIN
OPEN LOOP GAIN at 10Hz
OPEN LOOP GAIN at 10Hz
GAIN BANDWIDTH PRODUCT @ 1MHz
POWER BANDWIDTH
PHASE MARGIN
TC = 25°C, 1KΩ load
Full temp. range, 15Ω load
TC = 25°C, 15Ω load
TC = 25°C, 15Ω load
Full temp. range, 15Ω load
96
10
110
108
4
15
35
*
*
*
*
*
*
*
dB
dB
MHz
kHz
°
*
*
*
*
V
V
V
A
µs
V/µs
nF
nF
nF
*
*
±50
*
V
mA
*
*
*
*
*
°C/W
°C/W
°C/W
°C
OUTPUT
VOLTAGE SWING3
VOLTAGE SWING3
VOLTAGE SWING3
CURRENT, peak
SETTLING TIME to .1%
SLEW RATE
CAPACITIVE LOAD
CAPACITIVE LOAD
CAPACITIVE LOAD
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
±VS–8
±VS–6
±VS–5
5
2
±VS–5
±VS–6
*
*
*
2
3
*
*
*
.68
10
SOA
POWER SUPPLY
VOLTAGE
CURRENT, quiescent
Full temperature range
TC = 25°C
±10
8
±40
15
±45
30
1.9
2.4
30
2.1
2.6
*
*
THERMAL
RESISTANCE, AC, junction to case4
RESISTANCE, DC, junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
NOTES:
*
1.
2.
3.
4.
5.
CAUTION
2
TC = –55 to +125°C, F > 60Hz
TC = –55 to +125°C
TC = –55 to +125°C
Meets full range speciications
–25
+85
–55
+125
The speciication of PA10A is identical to the speciication 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 speciications are guaranteed but not tested.
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.
PA10U
POWER DERATING
40
30
PA10
20
10
T = TA
0
0
20
1.0
.7
20
–60
–80
–100
–120
–160
10
100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
–180
COMMON MODE REJECTION
80
60
10
100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
PULSE RESPONSE
8
OUTPUT VOLTAGE, VO (V)
100
1
4
2
0
–2
40
–4
20
0
–6
0
3
1
10
10K .1M
100 1K
FREQUENCY, F (Hz)
AV = 10
VS = ±38V
RL = 8
.3
.1
W
=
PO
.03
PA10U
5
PO
=
2W
W
=
PO
.01
.003
100
0m
300
60
1K
3K 10K 30K
FREQUENCY, F (Hz)
–8
1M
HARMONIC DISTORTION
.1M
.5
0
25 50 75 100 125
–50 –25 0
CASE TEMPERATURE, TC (°C)
1.6
1.4
0
2
4
6
8
TIME, t (µs)
10
12
5°C
T C = -2
°C
T C = 25
°C
.8
.6
|+VS | + |–VS | = 80V
46
32
22
|+VS | + |–VS | = 30V
15
10
6.8
4.6
10K
S
QUIESCENT CURRENT
1.2
1.0
|+VS | + |–VS | = 100V
68
20K 30K
50K 70K .1M
FREQUENCY, F (Hz)
S
INPUT NOISE
100
VIN = ±5V, tr = 100ns
6
RCL = 0.6
1.0
POWER RESPONSE
–140
0
1.5
OUTPUT VOLTAGE, VO (VPP)
PHASE, ϕ (°)
40
RCL = 0.3
2.0
100
–40
60
2.5
PHASE RESPONSE
0
80
3.0
.4
25 50 75 100 125
–50 –25 0
CASE TEMPERATURE, TC ( C)
NORMALIZED QUIESCENT CURRENT, IQ (X)
COMMON MODE REJECTION, CMR (dB)
1.3
–20
–20
1
DISTORTION (%)
1.6
40 60 80 100 120 140
TEMPERATURE, T (°C)
100
120
1.9
SMALL SIGNAL RESPONSE
120
OPEN LOOP GAIN, AOL (dB)
PA10A
2.2
CURRENT LIMIT, ILIM (A)
T = TC
50
CURRENT LIMIT
3.5
INPUT NOISE VOLTAGE, VN (nV/ Hz)
60
BIAS CURRENT
2.5
T C = 85
°C
T C = 125
.4
40
50
60
70
80 90 100
TOTAL SUPPLY VOLTAGE, VS (V)
VOLTAGE DROP FROM SUPPLY, (V)
70
NORMALIZED BIAS CURRENT, IB (X)
INTERNAL POWER DISSIPATION, P(W)
PA10 • PA10A
70
50
40
30
20
10
10
100
1K
10K
FREQUENCY, F (Hz)
OUTPUT VOLTAGE SWING
6
5
TC =
4
–V O
3
2
0
25°C
° to
25
TC =
TC =
+V O
1
.1M
25°C
° to
25
TC =
85°C
C
85°
2
3
1
4
OUTPUT CURRENT, IO (A)
5
3
PA10 • PA10A
GENERAL
Please read Application Note 1 "General Operating Considerations" which covers stability, supplies, heat sinking,
mounting, current limit, SOA interpretation, and speciication
interpretation. Visit www.apexanalog.com for design tools that
help automate tasks such as calculations for stability, internal
power dissipation, current limit; heat sink selection; Apex Microtechnology’s complete Application Notes library; Technical
Seminar Workbook; and Evaluation Kits.
±VS
50V
40V
35V
30V
25V
20V
15V
SHORT TO ±VS
C, L, OR EMF LOAD
.21A
.3A
.36A
.46A
.61A
.87A
1.4A
SHORT TO
COMMON
.61A
.87A
1.0A
1.4A
1.7A
2.2A
2.9A
SAFE OPERATING AREA (SOA)
CURRENT LIMITING
The output stage of most power ampliiers 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 speciied limits.
3. The junction temperature of the output transistors.
Refer to Application Note 9, "Current Limiting", for details
of both ixed and foldover current limit operation. 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 ixed current limit, leave pin 7 open and use equations
1 and 2.
RCL = 0.65/LCL
(1)
ICL = 0.65/RCL
(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.
0.65 + (Vo * 0.014)
ICL =
(3)
RCL
OUTPUT CURRENT FROM +VS OR – VS (A)
5.0
4.0
T
C
=8
3.0
T
2.0
TH
C
1.5
1.0
.8
ste
5°C
=1
ER
25
°C
MA
L
ad
ys
t=
ta
te
SE
5m
CO
s
ND
t= t=
1m 0 . 5
s ms
BR
EA
KD
OW
N
.6
RCL =
.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 conditions, check worst case stress levels against the SOA graph.
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%.
A Spice type analysis can be very useful in that a hardware setup often calls for instruments or ampliiers with wide
common mode rejection ranges. Please refer to Application
Notes, AN01 and AN22 for detailed information regarding
SOA considerations.
2. The ampliier 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:
4
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.
Vo * 0.14
0.65 +
10.14 + RFO
ICL =
(5)
RCL
0.65 +
RCL =
Vo * 0.14
10.14 + RFO
ICL
(6)
Where:
RFO is in K ohms.
PA10U
PA10 • PA10A
NEED TECHNICAL HELP? CONTACT APEX SUPPORT!
For all Apex Microtechnology product questions and inquiries, call toll free 800-546-2739 in North America.
For inquiries via email, please contact [email protected]
International customers can also request support by contacting their local Apex Microtechnology Sales Representative.
To ind the one nearest to you, go to www.apexanalog.com
IMPORTANT NOTICE
Apex Microtechnology, Inc. has made every effort to insure the accuracy of the content contained in this document. However, the information is subject to change
without notice and is provided "AS IS" without warranty of any kind (expressed or implied). Apex Microtechnology reserves the right to make changes without further
notice to any speciications or products mentioned herein to improve reliability. This document is the property of Apex Microtechnology and by furnishing this information, Apex Microtechnology grants no license, expressed or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual
property rights. Apex Microtechnology owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Apex Microtechnology integrated circuits or other products of Apex Microtechnology. This consent does not
extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.
APEX MICROTECHNOLOGY PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN PRODUCTS USED FOR
LIFE SUPPORT, AUTOMOTIVE SAFETY, SECURITY DEVICES, OR OTHER CRITICAL APPLICATIONS. PRODUCTS IN SUCH APPLICATIONS ARE UNDERSTOOD TO BE FULLY AT THE CUSTOMER OR THE CUSTOMER’S RISK.
Apex Microtechnology, Apex and Apex Precision Power are trademarks of Apex Microtechnolgy, Inc. All other corporate names noted herein may be trademarks
of their respective holders.
www.apexanalog.com
PA10U
Copyright © Apex Microtechnology, Inc. 2012
(All Rights Reserved)
SEP 20125
PA01U REVV
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