UNITRODE UC3176/UC3177 Full Bridge Power Amplifier Datasheet

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. The devices are operational over a 3V to 35V supply range. Internal under-voltage lockout provides predictable power-up and power-down characteristics.


UNITRODE UC3176/UC3177 Full Bridge Power Amplifier Datasheet - cover page
Brand
UNITRODE
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
5
File format
PDF
File size
320 KB
Published
08 August, 2012
Updated
29 September, 2023
Models
UC3176, UC3177
MD5 checksum
788DE1C22DB9FDFFB41413952BAF6834

About this manual

The UC3176/7 family of full bridge power amplifiers is rated for a continuous output current of 2A. These devices are intended for demanding servo applications such as disk head positioning. The onboard current sense amplifier allows for precision control of load current, while a standard voltage feedback scheme can be used where voltage mode drive is required.

What's inside

  • Features
  • Description
  • Absolute Maximum Ratings
  • Thermal Data
  • Electrical Characteristics
  • Application and Operation Information

Specifications

Output Current (Continuous)2A
Supply Voltage Range3V to 35V
Operating Junction Temperature-55°C to +150°C
Unity Gain Bandwidth1 MHz
Slew Rate1 V/us

Frequently asked questions

What is the maximum output current?

The device is rated for a continuous output current of 2A.

What is the supply voltage range?

The devices operate over a 3V to 35V supply range.

Does the device include thermal protection?

Yes, output stage protection includes foldback current limiting and thermal shutdown.

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