POSITION
FEEDBACK
OBJECT
TOOL
SHUT DOWN
+5V
+
+S
–S
–
–V
S
C
1
R2
R
BAL
+V
S
0/10V
R1
PA03
DESIRED
POSITION
DAC
POWER OPERATIONAL AMPLIFIERS
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEA TURES
• MO-127 COPPER POWER DIP™ PACKAGE
• HIGH INTERNAL POWER DISSIPATION
— 500 watts
• HIGH VOLTAGE OPERATION — ±75V
• VERY HIGH CURRENT — ±30 amps
• INTERNAL SOA PROTECTION
• OUTPUT SWINGS CLOSE TO SUPPLY RAILS
• EXTERNAL SHUTDOWN CONTROL
APPLICATIONS
• LINEAR AND ROTARY MOTOR DRIVES
• YOKE/MAGNETIC FIELD DEFLECTION
• PROGRAMMABLE POWER SUPPLIES to ±68V
• TRANSDUCER/AUDIO TO 1000W
DESCRIPTION
The super power PA03 advances the state of the art in both
brute force power and self protection against abnormal operating conditions. Its features start with a copper dip package
developed by Apex to extend power capabilities well beyond
those attainable with the familiar TO-3 package. The increased pin count of the new package provides additional
control features, while the superior thermal conductivity of
copper allows substantially higher power ratings.
The PA03 incorporates innovative current limiting circuits
limiting internal power dissipation to a curve approximating the
safe operating area of the power transistors. The internal
current limit of 35A is supplemented with thermal sensing
which reduces the current limit as the substrate temperature
rises. Furthermore, a subcircuit monitors actual junction temperatures and with a response time of less than ten milliseconds reduces the current limit further to keep the junction
temperature at 175°C.
The PA03 also features a laser trimmed high performance
FET input stage providing superior DC accuracies both initially
and over the full temperature range.
PA03 • P03A
TYPICAL APPLICATION
The PA03 output power stages contain fast reverse recov-
ery diodes for sustained high energy flyback protection.
This hybrid integrated circuit utilizes thick film resistors,
ceramic capacitors and silicon semiconductors to maximize
reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The MO-127 Copper,
12-pin Power Dip™ package (see Package Outlines), is
hermetically sealed and isolated from the internal circuits.
Insulating washers are not recommended.
IMPORTANT: Observe mounting precautions.
+V
8
BAL
11
BAL
12
Q5
Q31
Q20
B
Q3
Q18
4
+SHUT
DOWN
Q22
3
–SHUT
DOWN
Q2
Q17
–
1
+
2
–V
5
Q20
A
Q14
D1
Q12
9
COMP
10
D4
Q6
Q1
Q7
Q19
Q29
Q34
Q4
Q30
Q16
Q32
Q24
Q9
Q26
D2
+
7
6
–
D3
EQUIVALENT
SCHEMATIC
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
OUT
PA03 • PA03A
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –V
OUTPUT CURRENT, within SOA Internally limited
S
POWER DISSIPATION, internal 500W
INPUT VOLTAGE, differential ±25V
INPUT VOLTAGE, common mode ±V
TEMPERATURE, pin solder-10s 300°C
TEMPERATURE, junction
1
TEMPERATURE RANGE, storage –65 to +150°C
OPERATING TEMP. RANGE, case –55 to +125°C
SHUTDOWN VOLTAGE, differential ±5V
SHUTDOWN VOLTAGE, common mode ±V
150V
S
175°C
S
–SHUT DN
+SHUT DN
–OUTPUT
SPECIFICATIONS
PARAMETER TEST CONDITIONS
–INPUT
+INPUT
–SUPPLY
EXTERNAL CONNECTIONS
1
2
3
4
5
6
2
12
11
TOP
10
VIEW
†
MIN TYP MAX MIN TYP MAX UNITS
BALANCE CONTROL
BALANCE CONTROL
PHASE COMP.
9
PHASE COMP.
8
+SUPPLY
7
+OUTPUT
PA03
Pins 6 & 7 must be
connected together.
If unused, tie Pins
11 & 12 to +SUPPLY.
† IMPORTANT: OBSERVE
MOUNTING PRECAUTIONS.
REVERSE INSERTION
WILL DESTROY UNIT.
PA03A
INPUT
OFFSET VOLTAGE, initial TC = 25°C ± .5 ± 2 ± .25 ± .5 mV
OFFSET VOLTAGE, vs. temperature Full temperature range 10 30 5 10 µV/°C
OFFSET VOLTAGE, vs. supply TC = 25°C8*µV/V
OFFSET VOLTAGE, vs. power Full temperature range 20 10 µV/W
BIAS CURRENT, initial TC = 25°C550310pA
BIAS CURRENT, vs. supply TC = 25°C .01 * pA/V
OFFSET CURRENT, initial TC = 25°C 2.5 50 1.5 10 pA
INPUT IMPEDANCE, DC TC = 25°C10
11
* Ω
INPUT CAPACITANCE TC = 25°C6*pF
COMMON MODE VOLTAGE RANGE3Full temperature range ± VS –10V * V
COMMON MODE REJECTION, DC Full temp. range, VCM = ±20V 86 108 * * dB
SHUTDOWN CURRENT
4
Full temperature range 100 * µA
SHUTDOWN VOLTAGE Full temp. range, amp enabled .85 * V
SHUTDOWN VOLTAGE Full temp. range, amp disabled 3.5 * V
GAIN
OPEN LOOP GAIN at 10Hz Full temp. range, full load 92 102 * * dB
GAIN BANDWIDTH PRODUCT at 1MHz TC = 25°C, full load 1 * MHz
POWER BANDWIDTH TC = 25°C, IO = 15A, VO = 88V
PHASE MARGIN Full temp. range, CC = 1.8nF 65 * °
PP
30 * kHz
OUTPUT
VOLTAGE SWING
VOLTAGE SWING
VOLTAGE SWING
3
3
3
TC = 25°C, IO = 30A ± VS –7 6.2 * * V
Full temp. range, IO = 12A ± VS –5 4.2 * * V
Full temp. range, IO = 146mA ± VS –4 3.5 * * V
CURRENT, peak TC = 25°C30*A
SETTLING TIME to .1% TC = 25°C, 10V step 8 * µs
SLEW RATE TC = 25°C, CC - open 8 * V/µs
CAPACITIVE LOAD Full temp. range, AV = 1 2 * nF
SHUTDOWN DELAY TC = –25°C, disable 10 * µs
TC = –25°C, operate 20 * µs
POWER SUPPLY
VOLTAGE Full temperature range ± 15 ± 50 ± 75 * * * V
CURRENT, quiescent
6
TC = 25°C 125 300 * * mA
CURRENT, disable mode Full temperature range 25 40 * * mA
THERMAL
RESISTANCE, AC junction to case
5
Full temp. range, F>60Hz .22 .28 * * °C/W
RESISTANCE, DC junction to case Full temp. range, F<60Hz .25 .3 * * °C/W
RESISTANCE, junction to ambient Full temperature range 14 * °C/W
TEMPERATURE, junction Sustained operation 150 * °C
TEMPERATURE RANGE, case Meets full range specification – 25 85 * * °C
NOTES: * The specification of PA03A is identical to the specification for PA03 in applicable column to the left.
1. Long term operation at the maximum junction temperature will result in reduced product life. Derate power dissipation to
achieve high MTTF.
2. The power supply voltage for all specifications is the TYP rating unless noted as a test condition.
3. +VS and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS.
4. Rating applies if both shutdown inputs are least 1V inside supply rails. If one of the shutdown inputs is tied to a supply rail, the
current in that pin may increase to 2.4mA.
5. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz.
6. The PA03 must be used with a heatsink or the quiescent power may drive the unit into thermal shutdown.
CAUTION
APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
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.