MP6922
Dual Fast Turn-off Intelligent Controller
The Future of Analog IC Technology
DESCRIPTION
The MP6922 is a dual fast turn-off intelligent
controller to drive two N-CH power MOSFETs
in LLC resonant converters for synchronous
rectification.
The IC regulates the forward voltage drop of the
power switch to about 70mV and turns it off
before the voltage goes negative.
MP6922 has a light-load function to latch-off the
gate driver at light load condition, during which
only about 600μA quiescent current is
consumed.
The fast turn-off speed of MP6922 makes both
CCM and DCM driving available. An internal
Reverse Current Protection (RCP) function
ensures safe operation of the MOSFETs in high
frequency CCM condition.
MP6922 requires a minimum number of readily
available standard external components and is
available in SOIC8E, SOIC8 or SOIC14
package.
FEATURES
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Works with both Standard and Logic Level
FETs
Compatible with Energy Star, 0.5W Standby
Requirements
V
DD
Range From 8V to 24V
Fast Turn-off Total Delay of 20ns
Reverse Current Protection Function
Max 300kHz Switching Frequency
<600uA Quiescent Current at Light Load
Mode
Supports CCM, CrCM and DCM Operation
Mode
Available in SOIC8E, SOIC8 or SOIC14
package
AC-DC Adapter
LCD & PDP TV
Telecom SMPS
APPLICATIONS
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All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
Q1
S1
T
Q2
VOUT
VOUT
R3
Q1
C
s
C
in
Q2
L
m
C
out
S2
GND
R1
8
7
6
5
C
s
L
s
L
s
T
S1
C
in
L
m
C
out
S2
GND
R2
R4
MP6922
1
2
EN Signal
3
MP 6922
1
2
EN Signal
3
4
PGND PGND
V
G2
EN
LL
NC
V
D2
V
S2
V
G1
V
DD
RCP
NC
V
D1
V
S1
14
13
12
11
10
9
8
V
G2
EN
V
D2
V
S2
V
G1
V
DD
V
D1
V
S1
PGND
C1
C1
R1
4
5
6
7
C2
SOIC8E
SOIC14
MP6922 Rev. 1.23
9/19/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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MPS [ MONOLITHIC POWER SYSTEMS ]
