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UC3176
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MFG:SITEL Package Cooled:TQFP D/C:06+

UC3 Series Datasheet download

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Part Number: UC3176

MFG: SITEL

Package Cooled: TQFP

D/C: 06+

Description: The UC3176/7 family of full bridge power amplifiers is rated for a continuous output current of 2A. In...

UC3176 General Description

The UC3176/7 family of full bridge power amplifiers is rated for a continuous output current of 2A. Intended for use in demanding servo applications 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 comparator 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 under-voltage lockout provides predictable power-up and power-down characteristics.

UC3176 Maximum Ratings

Input Supply voltage, (+V_IN) . . . . . . . . . . . . . . . . . . .. 40V
Park/Inhibit, UV1 and UV2 inputs (zener clamped)
Maximum forced voltage . . . . . . . . . . . . . . . . -0.3V to 10V
Maximum forced current. . . . . . . . . . . . . . . . . . . .. ±10mA
Other Input Voltages. . . . . . . . . . . . . . . . . . -0.3V to +V_IN
AlSINK and BlSINK Voltages . . . . . . . . . . . . . . -0.3V to 6V
Open Collector Output Voltages. . . . . . . . . . . . . . . . . 40V
A and B Output Currents (Continuous)
Source . . . . . . . . . . . . . . . . . . . . . . . . .. Internally Limited
Sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
Total Supply Current (Continuous). . . . . . . . . . . . . . . . 4A
Parking Drive Output Current (Continuous) . . . . . 200mA
Supply OK Output Current, UC3177 (Continuous) . 30mA
Operating Junction Temperature . . . . .-55°C to +150°C
Power Dissipation at TC = +75°C
QP package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4W
Storage Temperature . . . . . . . . . . . . . -65°C to +150°C

Note 1: Unless otherwise indicated, voltages are reference to ground and currents are positive into, negative out of, the specified terminals.

UC3176 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

UC3176 datasheet

UC3176
PDF/DataSheet Download

Datasheet: UC3176
File Size: 399037 KB
Manufacturer: TI [Texas Instruments]
Click here to Download

·UC3-1
TI [Texas Instruments]
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·UC3172A
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·UC3172AFQ
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·UC3173A
TI [Texas Instruments]
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·UC3173ADW
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·UC3173ADWTR
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·UC3173AFQ
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·UC3173AFQTR
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Related Part Number

UC3176 Relative Products

UC3175B
This full-bridge power amplifier is rated for continuous output current of 0.8 Amperes 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...
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This full bridge power amplifier, rated for continuous output current of 0.55A, is intended for use in demanding servo applications such as head positioning for high density disk drives. This device includes a precision current sense amplifier that senses lo...
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The UC3172A power amplifier is pin-for-pin compatible with the UC3173A. Improvements have been made to allow more liberal application of the device.This full bridge power amplifier, rated for continuous output current of 1A, is intended for use in demanding ...
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