參數(shù)資料
型號(hào)： OPA569
英文描述： Power Op Amp. Output Signal Swings Within 200mV of Rails at 2A Output Current
中文描述： 功率運(yùn)算放大器。輸出信號(hào)擺幅在200mV的Rails的輸出電流為2A
文件頁(yè)數(shù)： 1/23頁(yè)
文件大?。?/td> 411K
代理商： OPA569
OPA569
Rail-to-Rail I/O, 2A
POWER AMPLIFIER
DESCRIPTION
The OPA569 is a low-cost, high-current, operational amplifier
designed for driving a wide variety of loads while operating on
low-voltage supplies. It operates from either single or dual
supplies for design flexibility and has rail-to-rail swing on the
input and output. Typical output swing is within 200mV of the
supply rails, with output current of 2A. Output swing closer to
the rails is achievable with lighter loads.
The OPA569 is unity gain stable, has low dc errors, is easy
to use, and free from the phase inversion problems found in
some power amplifiers. High performance is maintained at
voltage swings near the output rails.
The OPA569 provides an accurate user-selected current
limit that is set with an external resistor, or digitally adjusted
via a Digital-to-Analog Converter.
The OPA569 output can be independently disabled using the
Enable pin, saving power and protecting the load.
The I
MONITOR
pin provides a 1:475 bidirectional copy of the
output current. This eliminates the need for a series current
shunt resistor, allowing more voltage to be applied to the
load. This pin can be used for simple monitoring, or feedback
control to establish constant output current.
Two flags are provided: one for warning of thermal over-
stress, and one for current limit condition. The Thermal Flag
pin can be connected to the Enable pin to provide a thermal
shutdown solution.
Packaged in the Texas Instruments PowerPAD package,
it is small and easy to heat sink. The OPA569 is specified for
operation over the extended industrial temperature range,
–40
°
C to +85
°
C.
FEATURES
G
HIGH OUTPUT CURRENT: 2A
G
OUTPUT SWINGS TO: 200mV of Rails with I
O
= 2A
G
THERMAL PROTECTION
G
ADJUSTABLE CURRENT LIMIT
G
TWO FLAGS: Current Limit and Temperature
Warning
G
LOW SUPPLY VOLTAGE OPERATION: 2.7V to 5.5V
G
SHUTDOWN FUNCTION WITH OUTPUT DISABLE
G
SMALL POWER PACKAGE: SO-20 PowerPAD
APPLICATIONS
G
THERMOELECTRIC COOLER DRIVER
G
LASER DIODE PUMP DRIVER
G
VALVE, ACTUATOR DRIVER
G
SYNCHRO, SERVO DRIVER
G
TRANSDUCER EXCITATION
G
GENERAL LINEAR POWER BOOSTER FOR
OP AMPS
G
PARALLELING OPTION FOR HIGHER
CURRENT APPLICATIONS
www.ti.com
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2002, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SBOS264 – DECEMBER 2002
PowerPAD is a trademark of Texas Instruments.
OPA569
OPA569
Thermal
Flag
V
–
V
O
Parallel Out 2
Parallel Out 1
NOTE: (1) Connect
for thermal protection.
–
In
+In
V+
5
12,13
17, 18
7
4
82
14, 15
9
3
19
6
Current
Limit
Set
R
SET
(1)
Current
Limit
Flag
I
MONITOR
Enable
I
=
I
O
/475
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OPA569AIDWP 功能描述:運(yùn)算放大器 - 運(yùn)放 2A Pwr Op Amp Rail-To-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA569AIDWPG4 功能描述:運(yùn)算放大器 - 運(yùn)放 2A Pwr Op Amp Rail-To-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA569AIDWPR 功能描述:運(yùn)算放大器 - 運(yùn)放 2A Pwr Op Amp Rail-To-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
OPA569AIDWPRG4 功能描述:運(yùn)算放大器 - 運(yùn)放 2A Pwr Op Amp Rail-To-Rail I/O RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
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