欢迎访问ic37.com |
会员登录 免费注册
发布采购

PA03A 参数 Datasheet PDF下载

PA03A图片预览
型号: PA03A
PDF下载: 下载PDF文件 查看货源
内容描述: 功率运算放大器 [Power Operational Amplifiers]
分类和应用: 运算放大器
文件页数/大小: 5 页 / 201 K
品牌: CIRRUS [ CIRRUS LOGIC ]
 浏览型号PA03A的Datasheet PDF文件第2页浏览型号PA03A的Datasheet PDF文件第3页浏览型号PA03A的Datasheet PDF文件第4页浏览型号PA03A的Datasheet PDF文件第5页  
P r o d u c t I
n n o v a
t i
nnova
PA03,
I
PA03A
o n
F
F
r
r
o
o
m
m
PA03 • PA03A
PA03 • PA03A
Power Operational Amplifiers
FEATURES
• 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
TYPICAL APPLICATION
+V
S
12-PIN DIP
PACKAGE STYLE CU
POSITION
FEEDBACK
R
BAL
DESCRIPTION
The super power PA03 advances the state of the art in both
brute force power and self protection against abnormal oper-
ating conditions. Its features start with a copper dip package
developed by Apex Precision Power to extend power capabilities
well beyond those attainable with the familiar TO-3 package.
The increased pin count of the new package provides addi-
tional 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 mil-
liseconds 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.
+5V
SHUT DOWN
0/10V
DAC
R1
DESIRED
POSITION
+
+S
OBJECT
TOOL
–S PA03
–V
S
C
1
R2
EQUIVALENT
8 +V
SCHEMATIC
11
BAL
12
The PA03 output power stages contain fast reverse recovery
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. Ultra-
sonically bonded aluminum wires provide reliable intercon-
nections 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.
Q1
Q4
BAL
D1
Q2
Q5
Q17
Q20
A
Q20
B
Q3
Q12
4
+SHUT
Q18 DOWN
Q22
3
–SHUT
DOWN
Q14
9
COMP
10
Q6 Q7
Q9
D2
Q16
Q19
Q24
Q30
Q26
+
7
6
1
OUT
2
+
Q31
Q29
D4
Q34
D3
Q32
5
–V
PA02U
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
MAY 2009
1
APEX − PA03UREVJ