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零件编号 | UC3177 | ||
描述 | Full Bridge Power Amplifier | ||
制造商 | Unitrode | ||
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1 Page
UC3176
UC3177
Full Bridge Power Amplifier
FEATURES
• Dual Power Operational Amplifiers
• ±2A Output Current Guaranteed
• Precision Current Sense Amplifier
• Two Supply Monitoring Inputs
• Parking Function and Under-Voltage
Lockout
• Safe Operating Area Protection
• 3V to 35V Operation
DESCRIPTION
The UC3176/7 family of full bridge power amplifiers is rated for a continu-
ous output current of 2A. Intended for use in demanding servo applica-
tions such as disk head positioning, the onboard current sense amplifier
can be used to obtain precision control of load current, or where voltage
mode drive is required, a standard voltage feedback scheme can be used.
Output stage protection includes foldback current limiting and thermal
shutdown, resulting in a very rugged device.
Auxiliary functions on this device include a dual input under-voltage com-
parator that can be programmed to respond to low voltage conditions on
two independent supplies. In response to an under-voltage condition the
power Op-Amps are inhibited and a high current, 100mA, open collector
drive output is activated. A separate Park/Inhibit command input.
The devices are operational over a 3V to 35V supply range. Internal un-
der-voltage lockout provides predictable power-up and power-down char-
acteristics.
BLOCK DIAGRAM
SLUS285A - OCTOBER 1994 - REVISED JANUARY 2005
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页数 | 4 页 | ||
下载 | [ UC3177.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
UC3172A | Full Bridge Power Amplifier | Texas Instruments |
UC3173A | Full Bridge Power Amplifier | Texas Instruments |
UC3176 | Full Bridge Power Amplifier | Unitrode |
UC3176 | Full Bridge Power Amplifier (Rev. A) | Texas Instruments |
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