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TNY254G PDF预览

TNY254G

更新时间: 2024-01-06 10:33:23
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT 开关光电二极管
页数 文件大小 规格书
20页 498K
描述
TinySwitch Family Energy Efficient, Low Power Off-line Switchers

TNY254G 技术参数

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, PLASTIC, DIP-8
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:14 weeks风险等级:7.79
模拟集成电路 - 其他类型:SWITCHING REGULATORJESD-30 代码:R-PDIP-T8
JESD-609代码:e3长度:9.59 mm
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:0.4 A封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP8,.3
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
座面最大高度:4.45 mm子类别:Power Management Circuits
最大供电电流 (Isup):0.2 mA表面贴装:NO
切换器配置:SINGLE最大切换频率:48 kHz
温度等级:AUTOMOTIVE端子面层:PURE MATTE TIN
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

TNY254G 数据手册

 浏览型号TNY254G的Datasheet PDF文件第4页浏览型号TNY254G的Datasheet PDF文件第5页浏览型号TNY254G的Datasheet PDF文件第6页浏览型号TNY254G的Datasheet PDF文件第8页浏览型号TNY254G的Datasheet PDF文件第9页浏览型号TNY254G的Datasheet PDF文件第10页 
TNY253/254/255  
D5  
L2  
FR201  
3.3 µH  
T1  
1
2
10  
+ 5.2 V  
C6  
220 µF  
16 V  
C4  
2200 pF  
C5  
220 µF  
25 V  
R2  
100 kΩ  
1 W  
RTN  
D1  
1N4005  
5
D2  
1N4005  
D6  
R8  
820 Ω  
TinySwitch  
EN  
1N4937  
D
U1  
TNY254P  
U2  
BP  
R7  
100 Ω  
LTV817  
S
85-265  
VAC  
C1  
C2  
RF1  
10 Ω  
6.8 µF 4.7 µF  
400 V 400 V  
R9  
47 Ω  
R3  
22 Ω  
Q1  
2N3904  
Fusible  
C3  
0.1 µF  
R1  
1.2 kΩ  
R5  
18 Ω  
1/8 W  
D3  
1N4005  
D4  
1N4005  
VR1  
1N5230B  
4.7 V  
L1  
560 µH  
R4  
1 Ω  
1 W  
C8  
2.2 nF  
Y1 Safety  
R6  
0.82 Ω  
1/2 W  
PI-2244-082898  
Figure 11. 3.6 W Constant Voltage-Constant Current Cellular Phone Charger Circuit.  
D3  
1N3934  
T1  
1
10  
+ 9 V  
C6  
100 µF  
16V  
VR1  
1N5239B  
D1  
1N4004  
RTN  
6
5
TinySwitch  
EN  
C1  
2.2 µF  
200 V  
C2  
2.2 µF  
200 V  
D
S
115 VAC  
15ꢀ  
U1  
TNY253P  
BP  
C4  
68 pF  
1 KV  
C5  
2.2 nF  
Y1 Safety  
C3  
0.1 µF  
D2  
1N4004  
R2  
100 Ω  
RF1  
1.8 Ω  
Fusible  
PI-2190-031501  
Figure 12. 0.5 W Open Loop AC Adapter Circuit.  
create a high voltage DC bus connected to T1 in series with the  
high voltage MOSFET inside the TNY254. The inductor L1  
forms a π-filter in conjunction with C1 and C2. The resistor R1  
damps resonances in the inductor L1. The low frequency of  
operationofTNY254(44kHz)allowsuseofthesimple π-filter  
described above in combination with a single Y1-capacitor C8  
to meet worldwide conducted EMI standards. The diode D6,  
capacitor C4 and resistor R2 comprise the clamp circuit that  
limits the turn-off voltage spike on the TinySwitch DRAIN pin  
to a safe value. The secondary winding is rectified and filtered  
by D5 and C5 to provide the 5.2V output. Additional filtering  
constant voltage and constant current output. TinySwitch is  
always powered from the input high voltage, therefore it does  
notrequirebiaswindingforpower. Consequently, itsoperation  
is not dependent on the level of the output voltage. This allows  
for constant current charger designs that work down to zero  
volts on the output.  
Figure11 shows a 5.2V, 3.6W cellular phone charger circuit  
thatusestheTNY254andprovidesconstantvoltageandconstant  
current output over an universal input (85 to 265VAC) range.  
The AC input is rectified and filtered by D1 - D4, C1 and C2 to  
C
7
7/01  

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