Apex PA34 Datasheet

C

MICROTECHNOLOGY

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

PRELIMINARY

FEATURES

• LOW COST

• WIDE COMMON MODE RANGE —
Includes negative supply

• WIDE SUPPLY VOLTAGE RANGE
Single supply: 5V to 40V
Split supplies: ±2.5V to ±20V

• HIGH EFFICIENCY — |Vs–2.2V| at 2.5A typ

• HIGH OUTPUT CURRENT — 2.5A min

• INTERNAL CURRENT LIMIT

• LOW DISTORTION

APPLICATIONS

• HALF & FULL BRIDGE MOTOR DRIVERS

• AUDIO POWER AMPLIFIER

STEREO — 18W RMS per channel
BRIDGE — 36W RMS per package

• IDEAL FOR SINGLE SUPPLY SYSTEMS
5V — Peripherals
12V — Automotive

28V — Avionic

POWER OPERATIONAL AMPLIFIERS

PA34

Graphic for PA34

Here

EXTERNAL CONNECTIONS

PA34

DESCRIPTION

The PA34 consist of a monolithic power op amp in a

7-pin T0220 package.

The wide common mode input range includes the negative
rail, facilitating single supply applications. It is possible
to have a “ground based” input driving a single supply
amplifi er with ground acting as the “second” or “bottom”
supply of the amplifi er.

The output stage is also well protected. They possess
internal current limit circuits. While the device is well protected,
the Safe Operating Area (SOA) curve must be observed.
Proper heatsinking is required for maximum reliability.

The tab of the 7 pin plastic package is tied to –V

.

S

1234 567

+IN

-IN

BOOST

V

-VS
SENSE

I

OUT

+VS

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

1

PA34

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

PARAMETER TEST CONDITIONS2 MIN TYP MAX UNITS
INPUT

OFFSET VOLTAGE, initial 1.5 10 mV
OFFSET VOLTAGE, vs. temperature Full temperature range 15 µV/°C
BIAS CURRENT, initial 35 1000 nA
COMMON MODE RANGE Full temperature range –VS–.3 +VS–2 dB
COMMON MODE REJECTION, DC Full temperature range 60 85 dB
POWER SUPPLY REJECTION Full temperature range 60 80 dB

GAIN

OPEN LOOP GAIN Full temperature range 80 100 dB
GAIN BANDWIDTH PRODUCT AV = 40dB 600 kHz
PHASE MARGIN Full temperature range 65 °
POWER BANDWIDTH V

OUTPUT

CURRENT, peak 2.5 A
CURRENT, limit 3.0 A
SLEW RATE .5 1.2 V/µs
CAPACITIVE LOAD DRIVE AV = 1 .22 µF
VOLTAGE SWING Full temp. range, IO = 100mA |VS| –1.0 |VS| –0.8 V
VOLTAGE SWING Full temp. range, IO = 1A |VS| –1.8 |VS| –1.4 V
VOLTAGE SWING IO = 2.5A |VS| –3.0 |VS| –2.8 V
VOLTAGE SWING IO = 3.0A V

O(P-P)

SUPPLY VOLTAGE, total 5V to 40V
OUTPUT CURRENT SOA
POWER DISSIPATION, internal (per amplifi er) 25W
INPUT VOLTAGE, differential ±V
INPUT VOLTAGE, common mode +VS, -VS–.5V
JUNCTION TEMPERA TURE, max1 150°C
TEMPERATURE, pin solder—10 sec max 300°C
TEMPERATURE RANGE, storage –65°C to 150°C
OPERATING TEMPERATURE RANGE, case –55°C to 125°C

PA34

= 28V 13.6 kHz

S

POWER SUPPLY

VOLT A GE, V
CURRENT, quiescent, total 45 90 mA

THERMAL

RESISTANCE, DC junction to case 5.0 °C/W
RESISTENCE,AC junction to case 3.7 °C/W
RESISTANCE, junction to air 30 °C/W
TEMPERATURE RANGE, case Meets full range specifi cations –25 85 °C

NOTES:

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

2. Unless otherwise noted, the following conditions apply: ±VS = ±15V, TC = 25°C.

3. +VS and –VS denote the positive and negative supply rail respectively. VSS denotes the total rail-to-rail supply voltage.

4. Current limit may not function properly below VSS = 6V, however SOA violations are unlikely in this area.

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

3

54 30 40 V

SS

to achieve high MTTF.