5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 开关式稳压器或控制器> UCC2972D
UCC2972D PDF预览

UCC2972D

更新时间： 2024-11-27 13:15:07
品牌 Logo 应用领域
德州仪器 - TI 驱动器控制器
页数 文件大小 规格书
24页 895K
描述
FLUORESCENT LIGHT CONTROLLER, PDSO8, PLASTIC, SOIC-8

阅读下载

中文翻译

获取价格

UCC2972D 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP,针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.77
模拟集成电路 - 其他类型：FLUORESCENT LIGHT CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：25 V
最小输入电压：4.5 V标称输入电压：12 V
JESD-30 代码：R-PDSO-G8长度：4.89 mm
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
认证状态：Not Qualified座面最大高度：1.75 mm
表面贴装：YES切换器配置：PUSH-PULL
技术：BICMOS温度等级：INDUSTRIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：3.9 mm
Base Number Matches：1

UCC2972D 数据手册

 浏览型号UCC2972D的Datasheet PDF文件第2页浏览型号UCC2972D的Datasheet PDF文件第3页浏览型号UCC2972D的Datasheet PDF文件第4页浏览型号UCC2972D的Datasheet PDF文件第5页浏览型号UCC2972D的Datasheet PDF文件第6页浏览型号UCC2972D的Datasheet PDF文件第7页 
UCC1972/3  
UCC2972/3  
UCC3972/3  
BiCMOS Cold Cathode Fluorescent Lamp Driver Controller  
FEATURES  
DESCRIPTION  
• 1mA Typical Supply Current  
Design goals for a Cold Cathode Fluorescent Lamp (CCFL) converter used  
in a notebook computer or portable application include small size, high effi-  
ciency, and low cost. The UCC3972/3 CCFL controllers provide the neces-  
sary 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.  
• Accurate Lamp Current Control  
• Analog or Low Frequency Dimming  
Capability  
• Open Lamp Protection  
• Programmable Startup Delay  
• 4.5V to 25V Operation  
External parts count is minimized and system cost is reduced by integrating  
such features as a feedback controlled PWM driver stage, open lamp pro-  
tection, startup delay and synchronization circuitry between the buck and  
push-pull stages. The UCC3972/3 include an internal shunt regulator, al-  
lowing 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.  
• PWM Frequency Synchronized to  
External Resonant Tank  
• 8 Pin TSSOP and SOIC Packages  
Available  
• Internal Voltage Clamp Protects  
Transformer from Over-voltage  
(UCC3973)  
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.  
TYPICAL APPLICATION CIRCUIT  
C6 27pF  
UCC3972 NO INTERNAL VOLTAGE CLAMP  
INTERNAL VOLTAGE CLAMP LIMITS TRANS FORMER  
VOLTAGE AT S TART-UP OR DURING FAULT  
T1  
UCC3973  
S YS TEM VOLTAGE  
(4.5V TO 25V)  
R2 1k  
C5 0.1µF  
R1  
1kΩ  
UCC3972/3  
VDD  
D1  
R10  
8
C1  
6.8µF  
Q2  
VBAT  
2
1
C2  
1µF  
LAMP  
HV  
C7  
0.1µF  
Q3  
R11  
6
5
3
GND  
MODE  
COMP  
L1  
68µH  
LAMP  
LV  
BUCK  
ANALOG  
DIMMING  
C3  
1µF  
R6 75Ω  
OUT  
FB  
7
4
R5 10k  
R3 68k  
LOW FREQUENCY DIMMING  
68k  
D2  
R4 750  
C4 33nF  
D
R
LFD  
LFD  
0V-5V LOW FREQUENCY CONTROL SIGNAL  
UDG-99154  
SLUS252C - OCTOBER 1998 - REVISED MARCH 2005  
1234567...24

中文翻译

下载PDF

与UCC2972D相关器件

型号 品牌 获取价格 描述 数据表
UCC2972J TI

获取价格

 		FLUORESCENT LIGHT CONTROLLER, CDIP8, DIP-8
UCC2972N TI

获取价格

 		FLUORESCENT LIGHT CONTROLLER, 160kHz SWITCHING FREQ-MAX, PDIP8, GREEN, PLASTIC, DIP-8
UCC2972NG4 TI

获取价格

 		IC FLUORESCENT LIGHT CONTROLLER, 160 kHz SWITCHING FREQ-MAX, PDIP8, GREEN, PLASTIC, DIP-8,
UCC2972PW TI

获取价格

 		BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
UCC2972PWG4 TI

获取价格

 		BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
UCC2972PWTR TI

获取价格

 		FLUORESCENT LIGHT CONTROLLER, 160kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, TSSOP-8
UCC2972PWTRG4 TI

获取价格

 		FLUORESCENT LIGHT CONTROLLER, 160kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, TSSOP-8
UCC2973 TI

获取价格

 		BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
UCC2973AN TI

获取价格

 		暂无描述
UCC2973APW TI

获取价格

 		VACUUM FLUOR DISPLAY DRIVER, PDSO8, TSSOP-8

与UCC2972D相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证