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TNY255 参数 Datasheet PDF下载

TNY255图片预览
型号: TNY255
PDF下载: 下载PDF文件 查看货源
内容描述: 的TinySwitch系列高效节能,低功耗离线式切换器 [TinySwitch Family Energy Efficient, Low Power Off-line Switchers]
分类和应用:
文件页数/大小: 20 页 / 498 K
品牌: POWERINT [ Power Integrations ]
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TNY253/254/255  
Conditions  
Parameter  
Symbol SOURCE = 0 V; TJ = -40 to 125 °C  
See Figure 14  
Max  
Min  
Units  
Typ  
(Unless Otherwise Specified)  
OUTPUT (cont.)  
DRAIN Supply  
Voltage  
50  
V
TNY253  
TNY254  
TNY255  
Output Enable  
Delay  
14  
10  
µs  
µs  
tEN  
See Figure 16  
Output Disable  
Setup Time  
tDST  
0.5  
NOTES:  
A. For a threshold with a negative value, negative hysteresis is a decrease in magnitude of the corresponding threshold.  
B. Total current consumption is the sum of IS1 and IDSS when ENABLE pin is shorted to ground (MOSFET not switching)  
and the sum of IS2 and IDSS when ENABLE pin is open (MOSFET switching).  
C. Since the output MOSFET is switching, it is difficult to isolate the switching current from the supply current at the  
DRAIN. An alternative is to measure the BYPASS pin current at 6.2 V.  
D. Bypass pin is not intended for sourcing supply current to external circuitry.  
E. See typical performance characteristics section for BYPASS pin start-up charging waveform.  
F. For current limit at other di/dt values, refer to current limit vs. di/dt curve under typical performance  
characteristics.  
G. This parameter is derived from the change in current limit measured at 5X and 10X of the di/dt shown in the ILIMIT  
specification.  
470 Ω  
5 W  
S2  
470 Ω  
D
S
EN  
S
S1  
S
S
S
50 V  
10 V  
BP  
0.1 µF  
NOTE: This test circuit is not applicable for current limit or output characteristic measurements.  
PI-2211-061898  
Figure 14. TinySwitch General Test Circuit.  
C
12  
7/01