datasheet for PA50A by Apex Microtechnology

datasheet for PA50A by Apex Microtechnology
PA50PA50
• PA50A
• PA50A
PA50, PA50A
Power Operational Amplifier
FEATURES
•
•
•
•
HIGH INTERNAL DISSIPATION — 400 Watts
HIGH CURRENT — 40A Continuous, 100A PEAK
HIGH SLEW RATE — 50V/µs
OPTIONAL BOOST VOLTAGE INPUTS
APPLICATIONS
• SEMI-CONDUCTOR TESTING
DESCRIPTION
12-PIN DIP
PACKAGE STYLE CR
The PA50 is a MOSFET power operational ampliier that
extends the performance limits of power ampliiers in slew
rate and power bandwidth, while maintaining high current and
power dissipation ratings.
Boost voltage inputs allow the small signal portion of the
ampliier to operate at a higher voltage than the high current
output stage. The ampliier is then biased to achieve close
linear swings to the supply rails at high currents for extra eficient operation.
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/or improper mounting torque will void the product warranty.
Please see “General Operating Considerations”.
EQUIVALENT SCHEMATIC
EXTERNAL CONNECTIONS
-Vb
–IN
+IN
12
2
11
+Vs
9
+Vs
3
-Vs
4
-OUT
5
8
6
7
Copyright © Apex Microtechnology, Inc. 2012
(All Rights Reserved)
TOP
VIEW
+Vb
10
-Vs
-OUT
www.apexanalog.com
PA50U
1
+OUT
+OUT
OCT 2012
1
PA50U REVI
PA50 • PA50A
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
TEMPERATURE, storage
OPERATING TEMPERATURE RANGE, case
COMMON MODE REJECTION,DC
INPUT NOISE
GAIN
OPEN LOOP,@ 15Hz
GAIN BANDWIDTH PRODUCT
POWER BANDWIDTH
OUTPUT
VOLTAGE SWING
VOLTAGE SWING, PA50
VOLTAGE SWING, PA50A
CURRENT, peak
SETTLING TIME TO.1%
SLEW RATE
RESISTANCE
POWER SUPPLY
VOLTAGE, ±VBOOST
VOLTAGE, ±VS
CURRENT,quiescent, boost supply
CURRENT, quiescent, total
THERMAL
RESISTANCE,AC,junction to case3
RESISTANCE,DC,junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
Full temperature range
Full temp, range, VCM= ±20V
100KHZ BW, Rs=1KΩ
Full temperature range
RL=10Ω
RL=4Ω, Vo=80VP-P, Av=-10
Full temperature range
PA50
TYP
5
20
10
10
.01
10
10"
13
Full temperature range
-VB +12
+VB -14
90
94
±
±
INPUT
OFFSET VOLTAGE, initial
OFFSET VOLTAGE, vs. temperature
OFFSET VOLTAGE, vs. supply
BIAS CURRENT, initial
BIAS CURRENT vs. supply
OFFSET CURRENT, initial
INPUT IMPEDANCE, DC
IMPUT CAPACITANCE
COMMON MODE VOLTAGE RANGE
MIN
Io=40A
±VBOOST=±VS±10V, Io=40A
±VBOOST=±VS±10V, Io=50A
3ms 10% Duty Cycle
AV= -10,10V STEP,RL=4Ω
AV=-10
IO=0, NO LOAD, 2MHZ
±VS
±VS
Full temperature range
Full temperature range
+14, -12
±3
MIN
PA50A
TYP
10
50
30
50
50
UNITS
2
*
*
*
*
*
*
*
5
*
*
*
mV
µV/°V
µV/V
pA
pA/V
pA
Ω
pF
*
*
*
*
V
dB
µVrms
102
3
200
*
*
*
*
dB
MHz
kHz
*
*
V
V
V
A
µs
V/µs
Ω
9.5 ±VS 8.0
5.8 ±VS 4.0
±VS
100
5.8 ±VS 5.0
*
1
*
50
*
2.5
±15
.2
.25
12
-25
MAX
*
100
10
26
30
Full temperature range, F>60HZ
Full temperature range, F>60HZ
Full temperature range
Meets full range speciication
MAX
±
TEST CONDITIONS1
PARAMETER
±
SPECIFICATIONS
100V
130V
100A
400W
±20V
±Vb
350°C
150°C
–65 to +150°C
–55 to +125°C
±
±
ABSOLUTE MAXIMUM RATINGS
*
±65
±50
32
36
*
*
*
*
.25
.31
85
*
*
*
*
*
*
*
*
*
V
V
mA
mA
*
*
°C/W
°C/W
°C/W
°C
*
NOTES: * The speciication of PA50A is identical to the speciication for PA50 in applicable column to the left
1. Unless otherwise noted: TC = 25°C, DC input speciications 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.
CAUTION
The PA50 is constructed from MOSFET transistors. ESD handling procedures must be observed.
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.
2
PA50U
200
100
0
25
50
75
TEMPERATURE, T (°C)
100
SMALL SIGNAL GAIN
80
40
0
RL = 4
COMMON MODE REJECTION, CMR (dB)
1
100
80
60
40
20
PA50U
40
20
0
10
100
1K
10K 100K
FREQUENCY, F (Hz)
1M
100 1K 10K 100K 1M 10M
FREQUENCY F (Hz)
SMALL SIGNAL PHASE
RL = 4
–45
–90
–135
–180
10 100 1K 10K 100K 1M 10M
FREQUENCY, Ff (Hz)
COMMON MODE REJECTION
0
10
60
0
OPEN LOOP PHASE, Ф (°)
0
80
1
1.125
VOLTAGE DROP FROM SUPPLY, VS – VO (V)
300
POWER SUPPLY REJECTION
10
OUTPUT VOLTAGE, VO (VP-P)
T = TC
100
10
QUIESCENT CURRENT
6
1.075
1.05
1.025
1
40
60
80
20
100
TOTAL SUPPLY VOLTAGE, VS (V)
= VS
T
V BOOS
4
S
2
0
100
90
80
70
ST
=V
0V
+1
V BOO
0
10
20
30
40
OUTPUT CURRENT, IO (A)
50
POWER RESPONSE
60
50
40
30
100
±VS = ±VB
1.1
OUTPUT VOLTAGE SWING
8
20
100 1K 10K 100K 1M 10M
FREQUENCY, F (Hz)
OUTPUT CURRENT, (A)
400
POWER SUPPLY REJECTION, PSR (dB)
120
POWER DERATING
NORMALIZED QUIESCENT CURRENT, IQ (X)
INTERNAL POWER DISSIPATION, P(W)
500
OPEN LOOP GAIN RESPONSE, A (dB)
PA50 • PA50A
10
100K
FREQUENCY, F (Hz)
1M
SAFE OPERATING AREA
t=
1m
s
t
=
DC
10
DC T ms
C
T = 25
DC
°
C =
85 C
T
°C
C =
12
5°
C
1
0.1
1
10
100
SUPPLY TO OUTPUT DIFFERENTIAL, (V)
3
PA50 • PA50A
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.
the high current output stage. An additional 10V on the VBOOST
pins is sufficient to allow the small signal stages to drive the
output transistors into saturation and improve the output voltage
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.
CURRENT LIMIT
COMPENSATION
There is no internal circuit provision for current limit in the
PA50. However, the PA50 circuit board in the PA50 evaluation
kit does provide a means whereby the output current can be
sensed. An external circuit current limit can thereby be implemented if needed.
Compensation is internally ixed for a gain of 3 or more and
is not adjustable by the user. The PA50 therefore is not unity
gain stable.
BOOST OPERATION
With the VBOOST feature the small signal stages of the
ampliier are operated at higher supply voltages than the
ampliier’s high current output stage. +VBOOST (pin 11) and
–VBOOST (pin 12) are connected to the small signal circuitry of
the ampliier. +VS (pin 9,10) and –VS (pin 3,4) are connected to
POWER SUPPLY BYPASSING
Proper and sufficient power supply bypassing is crucial to
proper operation of the PA50. 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 capacitors and an electrolytic capacitor at least 10µF for each amp
of output current required.
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.
4
www.apexanalog.com
Copyright © Apex Microtechnology, Inc. 2012
(All Rights Reserved)
OCTPA50U
2012
PA50U REVI
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