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UC2527BDWTR PDF预览

UC2527BDWTR

更新时间： 2024-09-14 19:57:07
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
8页 530K
描述
0.5A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO16, 0.300 INCH, PLASTIC, SOIC-16

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中文翻译

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UC2527BDWTR 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOP, SOP16,.4
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.84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 VJESD-30 代码：R-PDSO-G16
长度：10.365 mm功能数量：1
端子数量：16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：SOP
封装等效代码：SOP16,.4封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：2.64 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：INDUSTRIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.5 mmBase Number Matches：1

UC2527BDWTR 数据手册

 浏览型号UC2527BDWTR的Datasheet PDF文件第2页浏览型号UC2527BDWTR的Datasheet PDF文件第3页浏览型号UC2527BDWTR的Datasheet PDF文件第4页浏览型号UC2527BDWTR的Datasheet PDF文件第5页浏览型号UC2527BDWTR的Datasheet PDF文件第6页浏览型号UC2527BDWTR的Datasheet PDF文件第7页 
UC1525B UC1527B  
UC2525B UC2527B  
UC3525B UC3527B  
Regulating Pulse Width Modulators  
FEATURES  
DESCRIPTION  
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 resis-  
tors. 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 adjust-  
ment.These devices also feature built-in soft-start circuitry with only an external  
timing capacitor required. A shutdown terminal controls both the soft-start circuit-  
ry and the output stages, providing instantaneous turn off through the PWM  
latch with pulsed shutdown, 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-nor-  
mal input voltages. This lockout circuitry includes approximately 500mV of hys-  
teresis for jitter-free operation. Another feature of these PWM circuits is a latch  
following 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 capable 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.  
•
8 to 35V Operation  
•
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  
7/95  
12345678

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