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5962-8670403VXX

更新时间： 2024-02-27 17:39:45
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
28页 693K
描述
1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, CQCC20, CERAMIC, LCC-20

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5962-8670403VXX 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Active零件包装代码：QLCC
包装说明：QCCN,针数：20
Reach Compliance Code：unknown风险等级：5.14
模拟集成电路 - 其他类型：SWITCHING 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：11 V标称输入电压：15 V
JESD-30 代码：S-CQCC-N20长度：8.89 mm
湿度敏感等级：NOT SPECIFIED功能数量：1
端子数量：20最高工作温度：125 °C
最低工作温度：-55 °C最大输出电流：1 A
标称输出电压：5 V封装主体材料：CERAMIC, METAL-SEALED COFIRED
封装代码：QCCN封装形状：SQUARE
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：NOT SPECIFIED
筛选级别：MIL-STD-883座面最大高度：2.03 mm
表面贴装：YES切换器配置：SINGLE
最大切换频率：500 kHz技术：BICMOS
温度等级：MILITARY端子面层：NOT SPECIFIED
端子形式：NO LEAD端子节距：1.27 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：8.89 mmBase Number Matches：1

5962-8670403VXX 数据手册

 浏览型号5962-8670403VXX的Datasheet PDF文件第2页浏览型号5962-8670403VXX的Datasheet PDF文件第3页浏览型号5962-8670403VXX的Datasheet PDF文件第4页浏览型号5962-8670403VXX的Datasheet PDF文件第5页浏览型号5962-8670403VXX的Datasheet PDF文件第6页浏览型号5962-8670403VXX的Datasheet PDF文件第7页 
UC1842/3/4/5  
UC2842/3/4/5  
UC3842/3/4/5  
www.ti.com  
SLUS223C–APRIL 1997–REVISED JUNE 2007  
CURRENT MODE PWM CONTROLLER  
FEATURES  
DESCRIPTION  
•
Optimized For Off-line and DC-to-DC  
Converters  
The UC1842/3/4/5 family of control devices provides  
the necessary features to implement off-line or  
dc-to-dc fixed frequency current mode control  
•
•
•
•
•
•
•
•
•
•
Low Start-Up Current (<1 mA)  
Automatic Feed Forward Compensation  
Pulse-by-Pulse Current Limiting  
Enhanced Load Response Characteristics  
Under-Voltage Lockout With Hysteresis  
Double Pulse Suppression  
schemes with  
a minimal external parts count.  
Internally implemented circuits include under-voltage  
lockout featuring start up current less than 1 mA, a  
precision reference trimmed for accuracy at the error  
amp input, logic to insure latched operation, a PWM  
comparator which also provides current limit control,  
and a totem pole output stage designed to source or  
sink high peak current. The output stage, suitable for  
driving N-Channel MOSFETs, is low in the off state.  
High Current Totem Pole Output  
Internally Trimmed Bandgap Reference  
500-kHz Operation  
Differences between members of this family are the  
under-voltage lockout thresholds and maximum duty  
cycle ranges. The UC1842 and UC1844 have UVLO  
thresholds of 16 VON and 10 VOFF, ideally suited to  
off-line applications. The corresponding thresholds  
for the UC1843 and UC1845 are 8.4 V and 7.6 V.  
The UC1842 and UC1843 can operate to duty cycles  
approaching 100%. A range of zero to 50% is  
obtained by the UC1844 and UC1845 by the addition  
of an internal toggle flip flop which blanks the output  
off every other clock cycle.  
Low RO Error Amp  
BLOCK DIAGRAM  
V
cc  
7 12  
UVLO  
34 V  
5 V  
REF  
S/R  
8 14  
5
4
9
7
GROUND  
V
REF  
5 V  
50 mA  
2.50 V  
Internal  
BIAS  
VREF  
Good  
Logic  
7
11  
V
C
OSC  
R /C  
T
T
6
10  
T
Error  
Amp  
OUTPUT  
S
2R  
R
5
8
PWM  
LATCH  
2
1
3
3
1
5
V
FB  
R
POWER  
GROUND  
1 V  
CURRENT  
SENSE  
COMP  
COMPARATOR  
CURRENT  
SENSE  
Note 1:  
Note 2:  
A = DIL−8 Pin Number. B = SO−14 and CFP−14 Pin Number.  
Toggle flip flop used only in 1844 and 1845.  
A/B  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 1997–2007, Texas Instruments Incorporated  
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