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TNY266P

更新时间： 2024-01-24 20:18:35
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT 开关
页数 文件大小 规格书
20页 516K
描述
Enhanced, Energy Efficient, Low Power Off-line Switcher

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TNY266P 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Not Recommended零件包装代码：DIP
包装说明：0.300 INCH, LEAD FREE, PLASTIC, MS-001-AB, DIP-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：14 weeks
风险等级：7.07其他特性：REQUIRES AN AC SUPPLY OF 85 TO 265 V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATIONJESD-30 代码：R-PDIP-T7
JESD-609代码：e3长度：9.575 mm
功能数量：1端子数量：7
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：0.56 A封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified表面贴装：NO
切换器配置：SINGLE最大切换频率：140 kHz
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
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 SPECIFIED
宽度：7.62 mmBase Number Matches：1

TNY266P 数据手册

 浏览型号TNY266P的Datasheet PDF文件第2页浏览型号TNY266P的Datasheet PDF文件第3页浏览型号TNY266P的Datasheet PDF文件第4页浏览型号TNY266P的Datasheet PDF文件第6页浏览型号TNY266P的Datasheet PDF文件第7页浏览型号TNY266P的Datasheet PDF文件第8页 
TNY264/266-268  
the SOURCE pin. The optocoupler LED is connected in series  
withaZenerdiodeacrosstheDCoutputvoltagetoberegulated.  
When the output voltage exceeds the target regulation voltage  
level (optocoupler LED voltage drop plus Zener voltage), the  
optocoupler LED will start to conduct, pulling the EN/UV pin  
low. The Zener diode can be replaced by a TL431 reference  
circuit for improved accuracy.  
beginning of each clock cycle, it samples the EN/UV pin to  
decide whether or not to implement a switch cycle, and based  
on the sequence of samples over multiple cycles, it determines  
the appropriate current limit. At high loads, when the EN/UV  
pin is high (less than 240 µA out of the pin), a switching cycle  
withthefullcurrentlimitoccurs. Atlighterloads, whenEN/UV  
is high, a switching cycle with a reduced current limit occurs.  
ON/OFF Operation with Current Limit State Machine  
The internal clock of the TinySwitch-II runs all the time. At the  
At near maximum load, TinySwitch-II will conduct during  
nearly all of its clock cycles (Figure 6). At slightly lower load,  
it will “skip” additional cycles in order to maintain voltage  
regulation at the power supply output (Figure 7). At medium  
loads, cycles will be skipped and the current limit will be  
reduced (Figure8). At very light loads, the current limit will be  
reduced even further (Figure 9). Only a small percentage of  
cycleswilloccurtosatisfythepowerconsumptionofthepower  
supply.  
V
EN  
CLOCK  
D
MAX  
TheresponsetimeoftheTinySwitch-IION/OFFcontrolscheme  
is very fast compared to normal PWM control. This provides  
tight regulation and excellent transient response.  
I
DRAIN  
Power Up/Down  
The TinySwitch-II requires only a 0.1 µF capacitor on the  
BYPASS pin. Because of its small size, the time to charge this  
capacitor is kept to an absolute minimum, typically 0.6 ms. Due  
to the fast nature of the ON/OFF feedback, there is no overshoot  
at the power supply output. When an external resistor (2 MΩ) is  
connectedfromthepositiveDCinputtotheEN/UVpin,thepower  
MOSFET switching will be delayed during power-up  
until the DC line voltage exceeds the threshold (100 V). Figures  
10 and 11 show the power-up timing waveform of TinySwitch-II  
V
DRAIN  
PI-2749-050301  
Figure 6. TinySwitch-II Operation at Near Maximum Loading.  
V
V
EN  
EN  
CLOCK  
CLOCK  
D
D
MAX  
MAX  
I
I
DRAIN  
DRAIN  
V
DRAIN  
V
DRAIN  
PI-2667-090700  
PI-2377-091100  
Figure 8. TinySwitch-II Operation at Medium Loading.  
Figure 7. TinySwitch-II Operation at Moderately Heavy Loading.  
B
7/01  
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