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UC3177 датащи(PDF) 1 Page - Texas Instruments |
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UC3177 датащи(HTML) 1 Page - Texas Instruments |
1 / 8 page UC3176 UC3177 SLUS285A - OCTOBER 1994 - REVISED JANUARY 2005 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 Full Bridge Power Amplifier BLOCK DIAGRAM 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. |
Аналогичный номер детали - UC3177 |
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Аналогичное описание - UC3177 |
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