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UC3525AN PDF预览

UC3525AN

更新时间： 2024-11-11 03:57:23
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脉冲光电二极管
页数 文件大小 规格书
9页 440K
描述
Regulating Pulse Width Modulators

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中文翻译

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UC3525AN 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：DIP
包装说明：DIP-16针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.63Samacsys Confidence：3
Samacsys Status：ReleasedSamacsys PartID：182965
Samacsys Pin Count：16Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Dual-In-Line PackagesSamacsys Footprint Name：N (R-PDIP-T16)
Samacsys Released Date：2017-01-12 12:59:53Is Samacsys：N
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：R-PDIP-T16JESD-609代码：e4
长度：19.3 mm功能数量：1
端子数量：16最高工作温度：70 °C
最低工作温度：最大输出电流：0.5 A
最大输出电压：5.2 V最小输出电压：5 V
标称输出电压：5.1 V封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP16,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT APPLICABLE认证状态：Not Qualified
座面最大高度：3.9 mm子类别：Switching Regulator or Controllers
表面贴装：NO切换器配置：PUSH-PULL
最大切换频率：400 kHz技术：BIPOLAR
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT APPLICABLE
宽度：6.35 mmBase Number Matches：1

UC3525AN 数据手册

 浏览型号UC3525AN的Datasheet PDF文件第2页浏览型号UC3525AN的Datasheet PDF文件第3页浏览型号UC3525AN的Datasheet PDF文件第4页浏览型号UC3525AN的Datasheet PDF文件第5页浏览型号UC3525AN的Datasheet PDF文件第6页浏览型号UC3525AN的Datasheet PDF文件第7页 
UC1525A/27A  
UC2525A/27A  
UC3525A/27A  
Regulating Pulse Width Modulators  
FEATURES  
DESCRIPTION  
• 8 to 35V Operation  
The UC1525A/1527A series of pulse width modulator integrated circuits are de-  
signed to offer improved performance and lowered external parts count when  
used in designing all types of switching power supplies. The on-chip +5.1V ref-  
erence is trimmed to ±1% and the input common-mode range of the error ampli-  
fier 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 synchro-  
nized to an external system clock. A single resistor between the CT and the dis-  
charge terminals provides a wide range of dead-time adjustment. These  
devices also feature built-in soft-start circuitry with only an external timing ca-  
pacitor required. A shutdown terminal controls both the soft-start circuitry 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-normal input volt-  
ages. This lockout circuitry includes approximately 500mV of hysteresis for jit-  
ter-free operation. Another feature of these PWM circuits is a latch following the  
comparator. Once a PWM pulse has been terminated for any reason, the out-  
puts 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 UC1525A output stage features NOR logic,  
giving a LOW output for an OFF state. The UC1527A utilizes OR logic which  
results in a HIGH output level when OFF.  
• 5.1V Reference Trimmed to ±1%  
• 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  
BLOCK DIAGRAM  
OSC  
OUT  
VREF  
16  
4
13  
11  
VC  
NOR  
UVLO  
Lockout  
Reference  
Regulator  
+VIN 15  
OUTPUT A  
GROUND 12  
To internal  
circuitry  
SYNC  
RT  
3
6
5
7
Flip  
Flop  
NOR  
OSC  
CT  
14  
OUTPUT B  
DISCHARGE  
UC1525A Output Stage  
13  
11  
VC  
COMP  
R
S
S
OR  
COMPENSATION  
INV INPUT  
9
1
2
8
PWM  
La tch  
Error  
Amp  
VREF  
50 µA  
OUTPUT A  
NI INPUT  
SOFTSTART  
OR  
3 kΩ  
SHUTDOWN 10  
14  
OUTPUT B  
5 kΩ  
UC1527A Output Stage  
SLUS191B - February 1997 - Revised June 2005  
1234567...9

中文翻译

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UC3525AN 替代型号

型号 品牌 替代类型 描述 数据表
UC3525ANG4 TI

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