Datasheet > UC2901-MIL

UC2901-MIL

更新时间： 2024-02-16 13:48:15

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
7页	399K
描述
Isolated Feedback Generator

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中文翻译

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数据手册

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UC2901-MIL 数据手册

UC1901

UC2901

UC3901

Isolated Feedback Generator

FEATURES

DESCRIPTION

• An Amplitude-Modulation System for

Transformer Coupling an Isolated

Feedback Error Signal

The UC1901 family is designed to solve many of the problems associ-

ated with closing a feedback control loop across a voltage isolation

boundary. As a stable and reliable alternative to an optical coupler, these

devices feature an amplitude modulation system which allows a loop er-

ror signal to be coupled with a small RF transformer or capacitor.

• Low-Cost Alternative to Optical

Couplers

The programmable, high-frequency oscillator within the UC1901 series

permits the use of smaller, less expensive transformers which can readily

be built to meet the isolation requirements of today's line-operated power

systems. As an alternative to RF operation, the external clock input to

these devices allows synchronization to a system clock or to the switch-

ing frequency of a SMPS.

• Internal 1% Reference and Error

Amplifier

• Internal Carrier Oscillator Usable to

5MHz

• Modulator Synchronizable to an

External Clock

An additional feature is a status monitoring circuit which provides an active-

low output when the sensed error voltage is within 10% of the reference.

• Loop Status Monitor

The DRIVERA output, DRIVERB output, and STATUS output are disabled

until the input supply has reached a sufficient level to allow proper operation

of the device.

Since these devices can also be used as a DC driver for optical couplers,

the benefits of 4.5 to 40V supply operation, a 1% accurate reference, and a

high gain general purpose amplifier offer advantages even though an AC

system may not be desired.

UC1901 SIMPLIFIED SCHEMATIC

UDG-98080

11/98

12 3 4 5 6 7

中文翻译

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与UC2901-MIL相关器件

型号	品牌	获取价格	描述	数据表
UC2901N	TI	获取价格	Isolated Feedback Generator
UC2901NG4	TI	获取价格	Isolated Feedback Generator
UC2901Q	TI	获取价格	FEEDBACK GENERATOR\|BIPOLAR\|LDCC\|20PIN\|PLASTIC
UC2901QG3	TI	获取价格	Isolated Feedback Generator
UC2901QTR	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PQCC20, PLASTIC, LCC-20
UC2902	TI	获取价格	Load Share Controller
UC2902D	TI	获取价格	LOAD SHARE CONTROLLER
UC2902DG4	TI	获取价格	LOAD SHARE CONTROLLER
UC2902DTR	TI	获取价格	20V load share controller, -40°C to 85°C 8-SOIC -40 to 85
UC2902DTRG4	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, GREEN, SOIC-8