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S-8533A14AFT-TB-G 参数 Datasheet PDF下载

S-8533A14AFT-TB-G图片预览
型号: S-8533A14AFT-TB-G
PDF下载: 下载PDF文件 查看货源
内容描述: 降压同步整流PWM控制开关稳压控制器 [STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER]
分类和应用: 开关光电二极管控制器
文件页数/大小: 31 页 / 410 K
品牌: SII [ SEIKO INSTRUMENTS INC ]
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STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER  
S-8533 Series  
Rev.2.3_00  
Though the conditions mentioned above are required to prevent back-flow current, they are guidelines. Check the  
validity by measuring the prototype or the actual device.  
L
Back-flow current  
VOUT  
Coil  
current IL  
VIN PDRV  
NDRV  
+
+
VIN  
CIN  
VSS  
Figure 9 Back-Flow Current  
Coil current under no load  
Coil current when 109 mA  
flows as a load  
IL  
IL  
ILmax.  
ΔIL  
ILmin.  
Back-flow current = 0 mA  
218 mA  
109 mA  
ILmax.  
109 mA  
IOUT  
ΔIL  
Back-flow  
current  
ILmin.  
0 mA  
IOUT  
0 mA  
109 mA  
Figure 10 Example for No Back-Flow Current  
10  
Seiko Instruments Inc.  
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