鈥?WIDE COMMON MODE RANGE 鈥?/div>
Includes negative supply
鈥?WIDE SUPPLY VOLTAGE RANGE
Single supply: 5V to 40V
Split supplies: 鹵2.5V to 鹵20V
鈥?HIGH EFFICIENCY 鈥?|Vs鈥?.4V| at 1.0A typ
鈥?HIGH OUTPUT CURRENT 鈥?1.7A min
鈥?INTERNAL CURRENT LIMIT
鈥?LOW DISTORTION
APPLICATIONS
鈥?HALF & FULL BRIDGE MOTOR DRIVERS
鈥?AUDIO POWER AMPLIFIER
鈥?IDEAL FOR SINGLE SUPPLY SYSTEMS
5V 鈥?Peripherals
12V 鈥?Automotive
28V 鈥?Avionic
EXTERNAL CONNECTIONS
PA35
DESCRIPTION
The PA35 consists of a monolithic power op amp with a
unity gain buffer in a 7-pin TO220 package. The 7-pin TO220
鏗俛t back heat tab allows for heat sinking with an electrically
insulating thermal washer. The tab of the 7-pin TO220 plastic
package is tied to -V
s
.
Combining the power amp and the unity gain buffer in
a parallel connection yields a single 3.4A ampli鏗乪r. 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
ampli鏗乪r with ground acting as the "second" or "bottom"
supply of the ampli鏗乪r.
The Safe Operating Area (SOA) must be observed when
determining the effect of all limits for the PA35 power op
amp. Proper heat sinking is required for maximum reliability
and performance.
A
-
+
+
B
-
1
2
3
4
5
6
7
+VS
+V
S
OUT AMP A
EQUIVALENT SCHEMATIC
TYPICAL CIRCUIT
RI
RF
+V
S
1/2
PA35
A
1鈩?/div>
V
IN
.1碌F
LOAD
1/2
PA35
B
1鈩?/div>
鈥揤
S
.1碌F
R
S
.2鈩?/div>
I
鈥?IN
+IN
OUT
PARALLEL CONNECTION
yields a single 3.4A amplifier
V
O
2I
R
S
.2鈩?/div>
I
SUB
鈥?V
S
CHANNEL A
CHANNEL B
NOTE: INTERNAL BONDING REPRESENTED BY DASHED LINE
APEX MICROTECHNOLOGY CORPORATION 鈥?TELEPHONE (520) 690-8600 鈥?FAX (520) 888-3329 鈥?ORDERS (520) 690-8601 鈥?EMAIL prodlit@apexmicrotech.com
OUT AMP B
+IN AMP A
-IN AMP A
IN AMP B
-VS
1
2
3
4
