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UC2846QG3 PDF预览

UC2846QG3

更新时间： 2024-11-23 15:55:51
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理开关
页数 文件大小 规格书
24页 1651K
描述
0.5A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PQCC20, GREEN, PLASTIC, LCC-20

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UC2846QG3 技术参数

是否Rohs认证：符合生命周期：Obsolete
零件包装代码：QLCC包装说明：GREEN, PLASTIC, LCC-20
针数：20Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.18Is 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：40 V
最小输入电压：7.25 V标称输入电压：15 V
JESD-30 代码：S-PQCC-J20长度：8.965 mm
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.5 A封装主体材料：PLASTIC/EPOXY
封装代码：QCCJ封装等效代码：LDCC20,.4SQ
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：4.57 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：500 kHz技术：BICMOS
温度等级：INDUSTRIAL端子形式：J BEND
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：8.965 mm
Base Number Matches：1

UC2846QG3 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
UC1846, UC1847, UC2846  
UC2847, UC3846, UC3847  
SLUS352C –JANUARY 1997–REVISED DECEMBER 2015  
UCx846/7 Current Mode PWM Controller  
1 Features  
3 Description  
The UC1846/7 family of control devices provides all  
of the necessary features to implement fixed-  
frequency, current-mode control schemes while  
maintaining a minimum external parts count. The  
superior performance of this technique can be  
measured in improved line regulation, enhanced load  
response characteristics, and a simpler, easier-to-  
design control loop. Topological advantages include  
inherent pulse-by-pulse current limiting capability,  
automatic symmetry correction for push-pull  
converters, and the ability to parallel power modules  
while maintaining equal current sharing.  
1
•
•
•
Automatic Feedforward Compensation  
Programmable Pulse-by-Pulse Current Limiting  
Automatic Symmetry Correction in Push-Pull  
Configuration  
•
•
Enhanced Load Response Characteristics  
Parallel Operation Capability for Modular Power  
Systems  
•
Differential Current Sense Amplifier with Wide  
Common Mode Range  
•
•
•
•
•
•
•
Double-Pulse Suppression  
500-mA (Peak) Totem-pole Outputs  
±1% Band Gap Reference  
Undervoltage Lockout  
Protection circuitry includes built-in undervoltage  
lockout and programmable current limit, in addition to  
soft-start capability. A shutdown function is also  
available, which can initiate either  
shutdown with automatic restart or latch the supply  
off.  
a complete  
Soft-Start Capability  
Shutdown Terminal  
500-kHz Operation  
Other features include fully-latched operation, double-  
pulse suppression, deadline adjust capability, and a  
±1% trimmed band gap reference.  
2 Applications  
The UC1846 features low outputs in the OFF state,  
while the UCx847 features high outputs in the OFF  
state.  
•
•
Telecommunication Power Converters  
Industrial Power Converters  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
8.89 mm × 8.89 mm  
6.92 mm × 19.56 mm  
8.96 mm × 8.96 mm  
7.5 mm × 10.3 mm  
6.35 mm × 19.3 mm  
7.5 mm × 10.3 mm  
6.35 mm × 19.3 mm  
LCCC (20)  
UC1846  
CDIP (16)  
PLCC (20)  
SOIC (16)  
PDIP (16)  
SOIC (16)  
PDIP (16)  
UC2846, UC3846  
UC2847, UC3847  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
Block Diagram  
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1k  
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14  
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16  
12  
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1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
 
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UC2846QG3 替代型号

型号 品牌 替代类型 描述 数据表
UC3846Q TI

完全替代

 Current Mode PWM Controller
UC3846QTR TI

完全替代

 Current Mode PWM Controller
UC2846QTR TI

完全替代

 Current Mode PWM Controller

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 		暂无描述
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 		0.5A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, CQCC20, CERAMIC, LCC-20
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 		Current Mode PWM Controller

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