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YD3842 fiches techniques PDF

Wuxi Youda electronics - CURRENT MODE PWM CONTROL CIRCUITS

Numéro de référence YD3842
Description CURRENT MODE PWM CONTROL CIRCUITS
Fabricant Wuxi Youda electronics 
Logo Wuxi Youda electronics 





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YD3842 fiche technique
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YOUDA INTEGRATED CIRCUIT
YD3842
CURRENT MODE PWM CONTROL CIRCUITS—YD3842
DESCRIPTION
The YD3842 provides the necessary features to implement off-line or DC fixed frequency current mode control
schemes with a minimal external parts count.
FEATURES
*Optimized For Off-line and DC to DC Converts
*Low Start up Current
*Automatic Feed Forward Compensation
*Pulse-by-Pulse Current Limiting
*Under-voltage Lookout with Hysteresis
*Double Pulse Suppression
*High Current Totem Pole Output
*Internally Trimmed Band-gap Reference
*500kHz Operation
BLOCK DIAGRAM
8
1/2
5V
REF
S/R
7
UVL
65
VCC
RS
+ EA
-
1/3
OSC
1V
1234
WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: 86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: www.e-youda.com
SHENZHEN OFFICE Tel86-755-83740369
Fax86-755-83741418
Ver 5.0
1 of 4
2006-7-10

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