Apex PA46 Datasheet

10896745123

–IN +IN SHDN

–V

S

OUT

+V

SIQCC1CC2ILIM

R

C

R

CL

C

C

OUTPUT

C

C

is NPO rated for full suppy voltage.

Phase Compensation
Gain C

C

R

C

≥10 10pF 1KΩ
≥ 1 68pF 1KΩ

HIGH VOLTAGE POWER OPERATIONAL AMPLIFIER

MICROTECHNOLOGY

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

FEATURES

• MONOLITHIC MOS TECHNOLOGY

• PROGRAMMABLE IQ (5 or 50 mA MAX)

• LOW COST

• HIGH VOLTAGE OPERATION—150V

• HIGH SLEW RATE—27V/µs

• HIGH POWER—5A, 75W DISSIPATION

APPLICATIONS

• MAGNETIC DEFLECTION

• PA AUDIO

• MOTOR DRIVE

• NOISE CANCELLATION

PA46

DESCRIPTION

The PA46 is a high power monolithic MOSFET operational
amplifier that achieves performance levels unavailable even in
many hybrid amplifier designs. Inputs are protected from
excessive common mode and differential mode voltages as
well as static discharge. The safe operating area (SOA) has no
second breakdown limitations and can be observed with all
type loads by choosing an appropriate current limiting resistor.
External compensation provides the user flexibility in choosing
optimum gain and bandwidth for the application. Class C
operation with resulting low quiescent current is pin program­mable. A shutdown input turns off the output stage.

This circuit utilizes a beryllia oxide (BeO) substrate to
minimize thermal resistance. The 10-pin power SIP package
is electrically isolated.

EQUIVALENT SCHEMATIC

6

+V

S

D4

–IN

1
2

+IN

D2

Q3

Q11

Q12

D3

D1

Q24

Q8

Q13

CC1

D5

8

CC2

9

Q21Q20

3

SHDN

7
I

Q

Q2

Q5 Q6

Q14

Q9 Q10

Q15

Q16

Q17

Q19

Q7

OUTPUT
DRIVE

5

10
CURRENT

SENSE

TYPICAL APPLICATION

+80

R

C

C

6

V

I

2

PA46

R

I

1

4

Horizontal Deflection Coil Amplifiers

C

8

R

9

CL

5

10

–20

±2.5A 7µSec Retrace

C

F

R

D

R

F

YOKE

R

S

Horizontal deflection amplifiers require both high speed and
low distortion. The speed at which current can be changed in a
deflection coil is a function of the voltage available from the op
amp. In this application an 80 volt power supply is used for the
retrace polarity to provide a 7 µSec retrace time, half of which is
required for amplifier slewing. This circuit can perform 15.75
KHz deflection in up to 50µH coils at up to 5A p-p.

EXTERNAL CONNECTIONS Package: SIP02

–V

S

4

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

D7

PA46

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

SUPPLY VOLTAGE, +VS to –V
OUTPUT CURRENT, continuous within SOA 5A
POWER DISSIPATION, continuous @ TC = 25°C 75W
INPUT VOLTAGE, differential ±16 V
INPUT VOLTAGE, common mode ±V
TEMPERATURE, pin solder – 10 sec 220°C
TEMPERATURE, junction 150°C
TEMPERATURE, storage –65 to +150°C
TEMPERATURE RANGE, powered (case) –55 to +125°C

S

150V

S

SPECIFICATIONS

PARAMETER TEST CONDITIONS
INPUT

OFFSET VOLTAGE, initial 510mV
OFFSET VOLTAGE, vs. temperature Full temperature range 10 50 µV/°C
OFFSET VOLTAGE, vs supply 815µV/V
OFFSET VOLTAGE, vs time 2 µV √kh
BIAS CURRENT, initial 20
BIAS CURRENT, vs supply 2 pA/V
OFFSET CURRENT, initial 200 pA
INPUT IMPEDANCE, DC 10
INPUT CAPACITANCE 5pF
COMMON MODE, voltage range ±VS–10 V
COMMON MODE REJECTION, DC 90 106 dB
NOISE, broad band 10kHz BW, RS = 1KΩ 10 µV RMS

GAIN

OPEN LOOP at 15Hz 94 106 dB
GAIN BANDWIDTH PRODUCT @ 1MHz
POWER BANDWIDTH CC = 10pF, 130V p-p, RL = 8Ω 66 kHz
PHASE MARGIN

RL = 500Ω, CC = 10pF 4.5 MHz
Full temp range, CC = 68pF, RL = 10

1

Ω 60 °

MIN TYP MAX UNITS

100

11

pA

Ω

OUTPUT

VOLTAGE SWING IO = 5A ±VS–10 ±VS–8V
CURRENT, continuous 5 A
SETTLING TIME to .1% 10V step, AV = –10 2 µs
SLEW RATE CC = 10pF, RL = 8Ω 27 V/µs
CAPACITIVE LOAD AV = +1, CC = 68pF 10 nF
RESISTANCE, no load RCL = 0 150 Ω

POWER SUPPLY

VOLTAGE
CURRENT, quiescent 30 50 mA
CURRENT, quiescent, class C 5mA

THERMAL

RESISTANCE, AC junction to case
RESISTANCE, DC junction to case
RESISTANCE, junction to air Full temperature range 30 °C/W
TEMPERATURE RANGE, case Meets full range specifications –25 +85 °C

NOTES: 1. Unless otherwise noted TC = 25°C, CC = 10pF, RC = 1KΩ. DC input specifications are ± value given. Power supply voltage is

CAUTION

3

2

typical rating.

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 heatsink data sheet.

3. Derate maximum supply voltage .5 V/°C below case temperature of 25°C. No derating is needed above TC = 25°C.

The PA46 is constructed from MOSFET transistors. ESD handling procedures must be observed.
The exposed substrate is beryllia (BeO). Do not crush, machine, or subject to temperatures in excess of 850°C to avoid

generating toxic fumes.

See Note 3 ±15 ±50 ±75 V

F > 60Hz 1.3 °C/W
F < 60Hz 1.7 °C/W

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