Datasheet > UC2871QTR

UC2871QTR

更新时间： 2024-11-20 23:38:55

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
6页	491K
描述
Resonant-Mode SMPS Controller

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

UC2871QTR 数据手册

UC1871

UC2871

UC3871

Resonant Fluorescent Lamp Driver

FEATURES

DESCRIPTION

•

1µA ICC when Disabled

The UC1871 Family of IC’s is optimized for highly efficient fluorescent lamp

control. An additional PWM controller is integrated on the IC for applications re-

quiring an additional supply, as in LCD displays. When disabled the IC draws

only 1µA, providing a true disconnect feature, which is optimum for battery

powered systems. The switching frequency of all outputs are synchronized to

the resonant frequency of the external passive network, which provides Zero

Voltage Switching on the Push-Pull drivers.

PWM Control for LCD Supply

Zero Voltage Switched (ZVS) on

Push-Pull Drivers

•

Open Lamp Detect Circuitry

4.5V to 20V Operation

Soft-Start and open lamp detect circuitry have been incorporated to minimize

component stress. An open lamp is detected on the completion of a soft-start

cycle.

Non-saturating Transformer

Topology

The Buck controller is optimized for smooth duty cycle control to 100%, while

the flyback control ensures a maximum duty cycle of 95%.

•

Smooth 100% Duty Cycle on

Buck PWM and 0% to 95% on

Flyback PWM

Other features include a precision 1% reference, under voltage lockout, flyback

current limit, and accurate minimum and maximum frequency control.

BLOCK DIAGRAM

UDG-92061-1

Note: Pin numbers refer to DIL-18 and SOIC-18 packages only.

10/94

12 3 4 5 6

中文翻译

下载PDF

与UC2871QTR相关器件

型号	品牌	获取价格	描述	数据表
UC2872	TI	获取价格	Resonant Lamp Ballast Controller
UC2872DW	TI	获取价格	Resonant Lamp Ballast Controller
UC2872DWG4	TI	获取价格	Resonant Lamp Ballast Controller
UC2872DWTR	TI	获取价格	Resonant Lamp Ballast Controller
UC2872DWTRG4	TI	获取价格	Resonant Lamp Ballast Controller
UC2872M	ETC	获取价格	Power Factor Controller
UC2872MTR	ETC	获取价格	Power Factor Controller
UC2872N	TI	获取价格	Resonant Lamp Ballast Controller
UC2872NG4	TI	获取价格	Resonant Lamp Ballast Controller
UC2872Q	TI	获取价格	Resonant Lamp Ballast Controller