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R1224N432H-TL PDF预览

R1224N432H-TL

更新时间： 2024-11-12 18:57:39
品牌 Logo 应用领域
理光 - RICOH 开关光电二极管
页数 文件大小 规格书
11页 153K
描述
Switching Controller, 0.05A, 600kHz Switching Freq-Max, CMOS, PDSO5, SOT-23, 5 PIN

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中文翻译

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R1224N432H-TL 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：SOT-23
包装说明：LSSOP,针数：5
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制技术：PULSE WIDTH MODULATION
最大输入电压：18.5 V最小输入电压：2.3 V
标称输入电压：8 VJESD-30 代码：R-PDSO-G5
JESD-609代码：e0长度：2.9 mm
湿度敏感等级：1功能数量：1
端子数量：5最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.05 A
封装主体材料：PLASTIC/EPOXY封装代码：LSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：1.4 mm表面贴装：YES
切换器配置：SINGLE最大切换频率：600 kHz
技术：CMOS温度等级：INDUSTRIAL
端子面层：TIN LEAD端子形式：GULL WING
端子节距：0.95 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：1.6 mm
Base Number Matches：1

R1224N432H-TL 数据手册

 浏览型号R1224N432H-TL的Datasheet PDF文件第2页浏览型号R1224N432H-TL的Datasheet PDF文件第3页浏览型号R1224N432H-TL的Datasheet PDF文件第4页浏览型号R1224N432H-TL的Datasheet PDF文件第5页浏览型号R1224N432H-TL的Datasheet PDF文件第6页浏览型号R1224N432H-TL的Datasheet PDF文件第7页 
2001.10.18  
PRELIMINARY  
PWM/VFM step-down DC/DC Converter  
12345  
R1224N Series  
ꢀ OUTLINE  
The R1224N Series are CMOS-based PWM step-down DC/DC Converter controllers with low supply current.  
Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a  
phase compensation circuit, a soft-start circuit, a protection circuit, a PWM/VFM alternative circuit, a chip enable  
circuit, resistors for output voltage detect, and input voltage detect circuit. A low ripple, high efficiency step-down  
DC/DC converter can be easily composed of this IC with only several external components, or a power-transistor, an  
inductor, a diode and capacitors. Output Voltage is fixed or can be adjusted with external resistors (Adjustable types  
are without PWM/VFM alternative circuit).  
With a PWM/VFM alternative circuit, when the load current is small, the operation is automatically switching into  
the VFM oscillator from PWM oscillator. Therefore, the efficiency at small load current is improved. Several types of  
the R1224N XXX, which are without a PWM/VFM alternative circuit, are also available.  
If the term of maximum duty cycle keeps on a certain time, the embedded protection circuit works. The protection  
circuit is Reset-type protection circuit, and it works to restart the operation with soft-start and repeat this operation until  
maximum duty cycle condition is released. When the cause of large load current or something else is removed, the  
operation is automatically released and returns to normal operation.  
Further, built-in UVLO function works when the input voltage is equal or less than UVLO threshold, it makes this IC  
be standby and suppresses the consumption current and avoid an unstable operation.  
ꢀ FEATURES  
ꢀ Range of Input Voltage • • • • • • • • • • • • •2.3V 18.5V  
ꢀ Built-in Soft-start Function and Protection Function (Reset type protection)  
ꢀ Three options of Oscillator Frequency • • • • • •180kHz, 300kHz, 500kHz  
ꢀ High Efficiency • • • • • • • • • • • • • • • • • •TYP. 90%  
ꢀ Output Voltage • • • • • • • • • • • • • Stepwise Setting with a step of 0.1V in the range of 1.2V to 6.0V as  
fixed voltage type. Reference Voltage of Adjustable Type is 1.0V  
ꢀ Standby Current • • • • • • • • • • • • • • • • •TYP. 0.0µA  
ꢀ High Accuracy Output Voltage • • • • • • • • • •±2.0%  
ꢀ Low Temperature-Drift Coefficient of Output Voltage • • • • • TYP. ±100ppm/°C  
ꢀ APPLICATIONS  
ꢀ Power source for hand-held communication equipment, cameras, video instruments such as VCRs,  
camcorders.  
ꢀ Power source for battery-powered equipment.  
ꢀ Power source for household electrical appliances.  
12345  
Rev. 0.06  
- 1 -  
1234567...11

中文翻译

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