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| SI9122E Datasheet, PDF (6/20 Pages) Vishay Siliconix – 500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers | |||
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Si9122E
Vishay Siliconix
TIMING DIAGRAM FOR MOS DRIVERS
VCC
GND
VCC
GND
VCC
GND
VBST
VMID
GND
PWM
DL
SRL
DH
PWM
DH
PWM
DL
SRL
DH
VCC
GND
SRH
PWM
DH
SRH
tBBM1 tBBM2 tBBM3 tBBM4
DH, LX
SRH
DH , LX
DH , LX
DH
50 %
LX
50 %
tBBM3
tBBM4
DL
SRL
SRL
www.vishay.com
6
tBBM1
tBBM2
Figure 3.
Time
BST = LX + VCC
V LX
VMID
VCC
GND
VCC
GND
Document Number: 73866
S-80112-Rev. D, 21-Jan-08
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