MP6910- FAST TURN-OFF INTELLIGENT RECTIFIER
SR Gate
V
DS
Normal Mode
-30mV
-70mV
Light Load Mode
120
µs
T
LL
T
LL
T
LL
I
SD
Internal
Driver
voltage
t0
t1
t2
Switching Current
Load become light
Figure 3—Synchronous Rectification
Operation at heavy load
Figure 5—Enter Light Load Mode
SR Gate
Light Load Mode
Normal Mode
V
DS
-30mV
-70mV
T
LL
+T
LL- H
T
LL
+T
LL-H
T
LL
+T
LL-H
T
LL
+T
LL-H
I
SD
Internal
Driver
voltage
t0
t1
t2
Switching Current
Load become heavy
Figure 6—Exit Light Load Mode
Figure 4—Synchronous Rectification
Operation at light load
MP6910 Rev. 1.04
1/3/2013
www.MonolithicPower.com
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