Apex PA05A, PA05 Datasheet

MICROTECHNOLOGY

POWER OPERATIONAL AMPLIFIERS

PA05 • PA05A

HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX [phone]

FEA TURES

• HIGH INTERNAL DISSIPATION — 250 WATTS

• HIGH VOLTAGE, HIGH CURRENT — 100V, 30A

• HIGH SLEW RATE — 100V/µS

• 4 WIRE CURRENT LIMIT SENSING

• LOW DISTORTION

• EXTERNAL SHUTDOWN CONTROL

• OPTIONAL BOOST VOLTAGE INPUTS

• EVALUATION KIT — SEE EK04

APPLICATIONS

• LINEAR AND ROTARY MOTOR DRIVES

• SONAR TRANSDUCER DRIVER

• YOKE/MAGNETIC FIELD EXCITATION

• PROGRAMMABLE POWER SUPPLIES TO ±45V

• AUDIO UP TO 500W

DESCRIPTION

The PA05 is a high voltage 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 PA05 is a highly flexible amplifier. The shutdown control
feature allows the output stage to be turned off for standby
operation or load protection during fault conditions. 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 efficient operation.
External compensation tailors slew rate and bandwidth perfor­mance to user needs. A four wire sense technique allows
precision current limiting without the need to consider internal
or external milliohm parasitic resistance in the output line. The
output stage is protected by thermal limiting circuits above
junction temperatures of 175°C.

PA05A

∆

USA BeO

TE949311

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”.

TYPICAL APPLICATION

The high power bandwidth of the PA05 allows driving sonar
transducers via a resonant circuit including the transducer and
a matching transformer. The load circuit appears resistive to
the PA05. Control logic turns off the amplifier's output during
shutdown.

R

f

CONTROL

LOGIC

ULTRA-

SONIC
DRIVE

R

i

1

12

7

R

11

CL

TRANSFORMER

TUNED

2

PA05

10

EQUIVALENT SCHEMATIC

SHUTDOWN
12

9

+V

BOOST

Q1

Q12 Q13

Q16

–IN

1

D19

+IN

2

Q17

D20

Q30

D1

4

Q8

COMP

3

D27
D31

D6
D9

Q10

Q22

Q25

Q33

Q4

Q14

BIAS

Q24

+Vs

D5

Q21

Q18

8

Q5
OUT

I

LIM

I

LIM

Q29

7

11
10

EXTERNAL CONNECTIONS

–INPUT
+INPUT

COMP

R

C

C

COMP

–V

BOOST

–SUPPLY

*

Gain C
1 470pF 120Ω
>3 220pF 120Ω

1
2
3

TOP

C

TOP

VIEW

VIEW

4
5
6

PHASE COMPENSATION

SHUTDOWN

12
11
10

CURRENT LIMIT
CURRENT LIMIT

9
8
7

+V

BOOST

*

+SUPPLY

OUTPUT

C

R

C

≥10 82pF 120Ω

–V

BOOST

5

APEX MICROTECHNOLOGY CORPORATION • TELEPHONE [phone] • FAX [phone] • ORDERS [phone] • EMAIL [e-mail]

D4

C

RATED FOR FULL SUPPLY VOLTAGE

6

–Vs

C

*See

BOOST OPERATION

paragraph.

P A05 • P A05A

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

SUPPLY VOLTAGE, +VS to –V
BOOST VOLTAGE SUPPLY VOLTAGE +20V

S

100V

OUTPUT CURRENT, continuous within SOA 30A
POWER DISSIPATION, internal 250W
INPUT VOLTAGE, differential ±20V
INPUT VOLTAGE, common mode ±V
TEMPERATURE, pin solder - 10s 300°C
TEMPERATURE, junction

2

B

175°C
TEMPERATURE, storage –65 to +150°C
OPERATING TEMPERATURE RANGE, case –55 to +125°C

SPECIFICATIONS

PARAMETER TEST CONDITIONS

PA05

1

MIN TYP MAX MIN TYP MAX UNITS

PA05A

INPUT

OFFSET VOLTAGE, initial 5 10 2 5 mV
OFFSET VOLTAGE, vs. temperature Full temperature range 20 50 10 30 µV/°C
OFFSET VOLTAGE, vs. supply 10 30 * * µV/V
OFFSET VOLTAGE, vs. power Full temperature range 30 10 µV/W
BIAS CURRENT, initial 10 50 5 20 pA
BIAS CURRENT, vs. supply .01 * pA/V
OFFSET CURRENT, initial 10 50 5 20 pA
INPUT IMPEDANCE, DC 10

11

* Ω
INPUT CAPACITANCE 13 * pF
COMMON MODE VOLTAGE RANGE Full temperature range ±VB–8 * V
COMMON MODE REJECTION, DC Full temp. range, VCM = ±20V 90 100 * * dB
INPUT NOISE 100KHz BW, RS = 1KΩ 10 * µVrms

GAIN

OPEN LOOP, @ 15Hz Full temperature range, CC = 82pF 94 102 * * dB
GAIN BANDWIDTH PRODUCT RL = 10Ω 3 * MHz
POWER BANDWIDTH RL = 4Ω, VO = 80V

CC = 82pF, RC = 120Ω

, AV = –10 400 * kHz

P-P

PHASE MARGIN Full temperature range, CC = 470pF 60 * °

OUTPUT

VOLTAGE SWING IO = 20A ±VS–9.5 ±VS–8.7 * * V
VOLTAGE SWING V
CURRENT, peak 30 * A

= Vs + 5V, IO = 30A ±VS–5.8 ±VS–5.0 * * V

BOOST

SETTLING TIME to .1% AV = +1, 10V step, RL = 4Ω 2.5 * µs
SLEW RATE AV = –10, CC = 82pF, RC = 120Ω 80 100 * V/µs
CAPACITIVE LOAD Full temperature range, AV = +1 2.2 * n F
RESISTANCE IO = 0, No load, 2MHz 5 * Ω

IO = 1A, 2MHz 2 * Ω

POWER SUPPLY

VOLTAGE Full temperature range ±15 ±45 ±50 * * * V
CURRENT, quiescent, boost supply 46 56 * * mA
CURRENT, quiescent, total 90 120 * * mA
CURRENT, quiescent, total, shutdown 46 56 * * mA

THERMAL

RESISTANCE, AC, junction to case
RESISTANCE, DC, junction to case Full temperature range, F<60Hz .4 .5 * * °C/W
RESISTANCE, junction to air

3

Full temperature range, F>60Hz .3 .4 * * °C/W

4

Full temperature range 12 * °C/W

TEMPERATURE RANGE, case Meets full range specification –25 85 * * °C

NOTES: * The specification of PA05A is identical to the specification for PA05 in applicable column to the left.

1. Unless otherwise noted: TC = 25°C, CC = 470pF, RC = 120 ohms. DC input specifications are ± value given. Power supply
voltage is typical rating. ±V

2. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation

BOOST

= ±VS.

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.

4. The PA05 must be used with a heatsink or the quiescent power may drive the unit to junction temperatures higher than 150°C.

CAUTION

The PA05 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.

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: [phone]