IR11672AS_11 Datasheet, PDF (1/25 Pages) International Rectifier – ADVANCED SMART RECTIFIER TM CONTROL IC

Datasheet No - PD97469
July 13, 2011
IR11672AS
ADVANCED SMART RECTIFIER ^TM CONTROL IC
Features
Product Summary
• Secondary side high speed SR controller
• DCM, CrCM flyback and Resonant half-bridge ^Topology
topologies
• 200V proprietary IC technology
VD
• Max 500KHz switching frequency
• Anti-bounce logic and UVLO protection
V_OUT
• 7A peak turn off drive current
• Micropower start-up & ultra low quiescent current
I_o+ & I _o- (typical)
• 10.7V gate drive clamp
Turn on Propagation
• 50ns turn-off propagation delay
Delay
• Vcc range from 11.3V to 20V
• Direct sensing of MOSFET drain voltage
Turn off Propagation
• Enable function synchronized with MOSFET VDS ^Delay
transition
• Cycle by Cycle MOT Check Circuit prevents multiple Package Options
false trigger GATE pulses
• Lead-free
• Compatible with 0.3W Standby, Energy Star, CECP,
etc.
Flyback,
Resonant Half-bridge
200V
10.7V
+2A & -7A
60ns (typical)
50ns (typical)
Typical Applications
• LCD & PDP TV, Telecom SMPS, AC-DC adapters,
ATX SMPS, Server SMPS
Typical Connection Diagram
8-Lead SOIC
Vin
Rs
Rdc
Cs
Ci
XFM
U1
Cdc
1
8
VCC VGATE
2 _OVT
GND ⁷
3
MOT
6
VS
Co
RMOT
4 _EN
VD ⁵
Rg
IR^IR1¹1¹6⁶⁷7¹2AS
Rtn
Q1
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