标题: BB OPA544如何 [打印本页] 作者: viate 时间: 2005-8-11 04:26 标题: BB OPA544如何 High-Voltage, High-Current
OPERATIONAL AMPLIFIER
DESCRIPTION
The OPA544 is a high-voltage/high-current operational
amplifier suitable for driving a wide variety of
high power loads. High performance FET op amp
circuitry and high power output stage are combined on
a single monolithic chip.
The OPA544 is protected by internal current limit and
thermal shutdown circuits.
The OPA544 is available in industry-standard
5-lead TO-220 and 5-lead surface-mount power packages.
Its copper tab allows easy mounting to a heat
sink for excellent thermal performance. It is specified
for operation over the extended industrial temperature
range, –40°C to +85°C.
FEATURES
l HIGH OUTPUT CURRENT: 2A min
l WIDE POWER SUPPLY RANGE:
±10 to ±35V
l SLEW RATE: 8V/ms
l INTERNAL CURRENT LIMIT
l THERMAL SHUTDOWN PROTECTION
l FET INPUT: IB = 100pA max
l 5-LEAD TO-220 PLASTIC PACKAGE
l 5-LEAD SURFACE MOUNT PACKAGE
APPLICATIONS
l MOTOR DRIVER
l PROGRAMMABLE POWER SUPPLY
l SERVO AMPLIFIER
l VALVES, ACTUATOR DRIVER
l MAGNETIC DEFLECTION COIL DRIVER
l AUDIO AMPLIFIER
这个零售价格大概80左右，手头有两片，不知道比1875如何，也是五脚的