UCC2973PW

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UCC2973PW概述

的BiCMOS冷阴极荧光灯驱动器控制器 BiCMOS Cold Cathode Fluorescent Lamp Driver Controller

Design goals for a Cold Cathode Fluorescent Lamp CCFL converter used in a notebook computer or portable application include small size, high efficiency, and low cost. The UCC3972/3 CCFL controllers provide the necessary circuit blocks to implement a highly efficient CCFL backlight power supply in a small footprint 8 pin TSSOP package. The BiCMOS controllers typically consume less than 1mA of operating current, improving overall system efficiency when compared to bipolar controllers requiring 5mA to 10mA of operating current.

External parts count is minimized and system cost is reduced by integrating such features as a feedback controlled PWM driver stage, open lamp protection, startup delay and synchronization circuitry between the buck and push-pull stages. The UCC3972/3 include an internal shunt regulator, allowing the part to operate with input voltages from 4.5V up to 25V. The part supports both analog and externally generated low frequency dimming modes of operation.

The UCC3973 adds a programmable voltage clamp at the BUCK pin. This feature can be used to protect the transformer from overvoltage during startup or when an open lamp occurs. Transformer voltage is controlled by reducing duty cycle when an over-voltage is detected.

UCC2973PW中文资料参数规格
技术参数

频率 80kHz ~ 160kHz

电源电压DC 4.50V min

供电电流 7 mA

工作温度Max 85 ℃

工作温度Min -40 ℃

电源电压 4.5V ~ 20V

封装参数

安装方式 Surface Mount

引脚数 8

封装 TSSOP-8

外形尺寸

长度 3 mm

宽度 4.4 mm

高度 1.15 mm

封装 TSSOP-8

物理参数

工作温度 -40℃ ~ 85℃

其他

产品生命周期 Active

包装方式 Tube

符合标准

RoHS标准 RoHS Compliant

含铅标准 Lead Free

数据手册

UCC2973PW引脚图与封装图
UCC2973PW引脚图
UCC2973PW封装图
UCC2973PW封装焊盘图
在线购买UCC2973PW
型号: UCC2973PW
制造商: TI 德州仪器
描述:的BiCMOS冷阴极荧光灯驱动器控制器 BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
替代型号UCC2973PW
型号/品牌 代替类型 替代型号对比

UCC2973PW

TI 德州仪器

当前型号

当前型号

UCC2973PWG4

德州仪器

完全替代

UCC2973PW和UCC2973PWG4的区别

UCC2973PWTR

德州仪器

完全替代

UCC2973PW和UCC2973PWTR的区别

UCC2973PWTRG4

德州仪器

功能相似

UCC2973PW和UCC2973PWTRG4的区别

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