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參數(shù)資料
| 型號： | UC3175B |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Full-Bridge Power Amplifier |
| 中文描述： | 全橋功率放大器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 343K |
| 代理商： | UC3175B |
10/94
Note: Pin numbers refer to PLCC package.
BLOCK DIAGRAM
Precision Current Control
±
800mA Load Current
1.25V Total V
SAT
at 800mA
Controlled Velocity Head Parking
Precision Dual Supply Monitor
with Indicator
Limit Input to Force Output
Extremes
Inhibit Input and UVLO
4V to 15V operation
This full-bridge power amplifier is rated for continuous output current of 0.8 Am-
peres and is intended for use in demanding servo applications such as head
positioning for high-density disk drives. The device includes a precision current
sense amplifier that provides accurate control of load current. Current is
sensed with a single resistor in series with the load. The power amplifier has a
very low output saturation voltage and will operate down to 4V supply levels.
Power output stage protection includes current limiting and thermal shutdown.
Auxiliary functions on this device include a dual-input under-voltage compara-
tor, which can monitor two independent supply voltages and force a built-in
head park function when either is below minimum. When activated by either the
UV comparator, or a command at the separate PARK input, the park circuitry
will override the amplifier inputs to convert the power outputs to a programma-
ble constant voltage source which will hold regulation as the supply voltage
falls to below 3.0 Volts. Added features include a POWER OK flag output, a
LIMIT input to force the drive output to its maximum level in either polarity, and
a over-riding INHIBIT input to disable all amplifiers and reduce quiescent sup-
ply current.
This device is packaged in a power PLCC surface mount configuration which
maintains a standard 28-pin outline, but with 7 pins along one edge allocated to
ground for optimum thermal transfer. And is also available in a 24-pin surface
mount SOIC package.
UC3175B
Full-Bridge Power Amplifier
FEATURES
DESCRIPTION
UDG-92054-1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3175BDW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo Motor Controller/Driver |
| UC3175BDWTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo Motor Controller/Driver |
| UC3175BQP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo Motor Controller/Driver |
| UC3175BQPTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo Motor Controller/Driver |
| UC3176 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Full Bridge Power Amplifier |
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