UC2834集成电路（IC）的线性稳压器规格书PDF中文资料

UC2834属于集成电路（IC）的线性稳压器。由德州仪器制造生产的UC2834稳压器 - 线性稳压器控制器线性电压调节是指使用与负载串联的旁路元件（通常是双极型或场效应晶体管）以及对应的驱动控制电路，以在负载两端产生恒定的标称电压，负载通常对电路的电源电压变化或负载电流不敏感。该系列中的产品提供与外部旁路元件配合使用所必需的控制功能，从而将其与集成线性稳压器区分开来，后者将旁路元件与控制电路整合在单个器件封装中。

FEATURES

· Minimum VIN - VOUT Less Than

0.5V At 5A Load With External

Pass Device

· Equally Usable For Either Positive

or Negative Regulator Design

· Adjustable Low Threshold Current

Sense Amplifier

· Under And Over-Voltage Fault Alert

With Programmable Delay

· Over-Voltage Fault Latch With

100mA Crowbar Drive Output

DESCRIPTION

The UC1834 family of integrated circuits is optimized for the design of low

input-output differential linear regulators. A high gain amplifier and 200mA

sink or source drive outputs facilitate high output current designs which use

an external pass device. With both positive and negative precision references,

either polarity of regulator can be implemented. A current sense amplifier

with a low, adjustable, threshold can be used to sense and limit

currents in either the positive or negative supply lines.

In addition, this series of parts has a fault monitoring circuit which senses

both under and over-voltage fault conditions. After a user defined delay for

transient rejection, this circuitry provides a fault alert output for either fault

condition. In the over-voltage case, a 100mA crowbar output is activated.

An over-voltage latch will maintain the crowbar output and can be used to

shutdown the driver outputs. System control to the device can be accommodated

at a single input which will act as both a supply reset and remote

shutdown terminal. These die are protected against excessive power dissipation

by an internal thermal shutdown function.