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5962-8670402DA PDF预览

5962-8670402DA

更新时间: 2024-11-23 20:29:23
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
8页 519K
描述
1A SWITCHING CONTROLLER, CDFP14, CERAMIC, DFP-14

5962-8670402DA 技术参数

生命周期:Active零件包装代码:DFP
包装说明:CERAMIC, DFP-14针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.14
Is Samacsys:N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:15.5 V最小输入电压:14.5 V
标称输入电压:15 VJESD-30 代码:R-GDFP-F14
JESD-609代码:e0功能数量:1
端子数量:14最高工作温度:125 °C
最低工作温度:-55 °C最大输出电流:1 A
最大输出电压:5.05 V最小输出电压:4.95 V
封装主体材料:CERAMIC, GLASS-SEALED封装代码:DFP
封装等效代码:FL14,.25封装形状:RECTANGULAR
封装形式:FLATPACK认证状态:Qualified
筛选级别:MIL-STD-883子类别:Switching Regulator or Controllers
标称供电电压 (Vsup):15 V表面贴装:YES
切换器配置:SINGLE最大切换频率:500 kHz
技术:BIPOLAR温度等级:MILITARY
端子面层:TIN LEAD端子形式:FLAT
端子节距:1.27 mm端子位置:DUAL
Base Number Matches:1

5962-8670402DA 数据手册

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UC1842/3/4/5  
UC2842/3/4/5  
UC3842/3/4/5  
Current Mode PWM Controller  
FEATURES  
DESCRIPTION  
Optimized For Off-line And DC  
To DC Converters  
The UC1842/3/4/5 family of control ICs provides the necessary features to  
implement off-line or DC to DC fixed frequency current mode control schemes  
with a minimal external parts count. Internally implemented circuits include  
under-voltage lockout featuring start up current less than 1mA, 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.  
Low Start Up Current (<1mA)  
Automatic Feed Forward  
Compensation  
Pulse-by-pulse Current Limiting  
Enhanced Load Response  
Characteristics  
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 16V (on) and 10V (off), ideally suited to off-line  
applications. The corresponding thresholds for the UC1843 and UC1845 are  
8.4V and 7.6V. 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.  
Under-voltage Lockout With  
Hysteresis  
Double Pulse Suppression  
High Current Totem Pole  
Output  
Internally Trimmed Bandgap  
Reference  
500khz Operation  
Low RO Error Amp  
BLOCK DIAGRAM  
A/B  
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.  
SLUS223A - APRIL 1997 - REVISED MAY 2002  

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1A SWITCHING CONTROLLER, CDFP14, CERAMIC, DFP-14