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UC3525AQTRG3 PDF预览

UC3525AQTRG3

更新时间： 2024-11-11 15:55:51
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
16页 1171K
描述
0.5A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PQCC20, GREEN, PLASTIC, LCC-20

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中文翻译

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UC3525AQTRG3 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QLCC
包装说明：QCCJ, LDCC20,.4SQ针数：20
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.65
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：35 V
最小输入电压：8 V标称输入电压：20 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：70 °C最低工作温度：
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：BIPOLAR
温度等级：COMMERCIAL端子形式：J BEND
端子节距：2.54 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

UC3525AQTRG3 数据手册

 浏览型号UC3525AQTRG3的Datasheet PDF文件第2页浏览型号UC3525AQTRG3的Datasheet PDF文件第3页浏览型号UC3525AQTRG3的Datasheet PDF文件第4页浏览型号UC3525AQTRG3的Datasheet PDF文件第5页浏览型号UC3525AQTRG3的Datasheet PDF文件第6页浏览型号UC3525AQTRG3的Datasheet PDF文件第7页 
application  
INFO  
UC1525B UC1527B  
UC2525B UC2527B  
UC3525B UC3527B  
available  
Regulating Pulse Width Modulators  
FEATURES  
DESCRIPTION  
• 8 to 35V Operation  
The UC1525B/1527B series of pulse width modulator integrated circuits  
are designed to offer improved performance and lowered external parts  
count when used in designing all types of switching power supplies. The  
on-chip +5.1V buried zener reference is trimmed to ±0.75% and the input  
common-mode range of the error amplifier includes the reference voltage,  
eliminating external resistors. A sync input to the oscillator allows multiple  
units to be slaved or a single unit to be synchronized to an external system  
clock. A single resistor between the CT and the discharge terminals provide  
a wide range of dead time adjustment. These devices also feature built-in  
soft-start circuitry with only an external timing capacitor required. A shut-  
down terminal controls both the soft-start circuitry and the output stages,  
providing instantaneous turn off through the PWM latch with pulsed shut-  
down, as well as soft-start recycle with longer shutdown commands. These  
functions are also controlled by an undervoltage lockout which keeps the  
outputs off and the soft-start capacitor discharged for sub-normal input volt-  
ages. This lockout circuitry includes approximately 500mV of hysteresis for  
jitter-free operation. Another feature of these PWM circuits is a latch follow-  
ing the comparator. Once a PWM pulse has been terminated for any rea-  
son, the outputs will remain off for the duration of the period. The latch is  
reset with each clock pulse. The output stages are totem-pole designs ca-  
pable of sourcing or sinking in excess of 200mA. The UC1525B output  
stage features NOR logic, giving a LOW output for an OFF state. The  
UC1527B utilizes OR logic which results in a HIGH output level when OFF.  
• 5.1V Buried Zener Reference  
Trimmed to ±0.75%  
• 100Hz to 500kHz Oscillator Range  
• Separate Oscillator Sync Terminal  
• Adjustable Deadtime Control  
• Internal Soft-Start  
• Pulse-by-Pulse Shutdown  
• Input Undervoltage Lockout with  
Hysteresis  
• Latching PWM to Prevent Multiple  
Pulses  
• Dual Source/Sink Output Drivers  
• Low Cross Conduction Output Stage  
• Tighter Reference Specifications  
BLOCK DIAGRAM  
UDG-95055  
SLUS376 JULY 1995  
1234567...16

中文翻译

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UC3525AQTRG3 替代型号

型号 品牌 替代类型 描述 数据表
UC3525AQG3 TI

完全替代

 REGULATING PULSE WIDTH MODULATORS
UC3525AQ TI

类似代替

 Regulating Pulse Width Modulators
SG3525ADWR2G ONSEMI

功能相似

 Pulse Width Modulator Control Circuit

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