IR1168_11 Datasheet, PDF (1/22 Pages) International Rectifier – DUAL SMART RECTIFIER DRIVER IC

Datasheet No – PD97382
September 26, 2011
IR1168S
DUAL SMART RECTIFIER DRIVER IC
Features
• Secondary-side high speed controller for
synchronous rectification in resonant half bridge
topologies
• 200V proprietary IC technology
• Max 500KHz switching frequency
• Anti-bounce logic and UVLO protection
• 4A peak turn off drive current
• Micropower start-up & ultra low quiescent current
• 10.7V gate drive clamp
• 70ns turn-off propagation delay
• Wide Vcc operating range
• Direct sensing for both Synchronous Rectifiers
• Minimal component count
• Simple design
• Lead-free
Product Summary
Topology
VD
V_OUT
I_o+ & I _o- (typical)
Turn on Propagation Delay
Turn off Propagation Delay
Package Options
LLC Half-bridge
200V
10.7V Clamped
+1A & -4A
60ns (typical)
70ns (typical)
Typical Applications
• LCD & PDP TV, Telecom SMPS, AC-DC adapters
8-Lead SOIC
Typical Connection Diagram
Vin
C1
M1
Lr
1
2
C2
M2
Rtn
SR1
Cdc
Rg1
1 _{GATE1 GATE2} 8
2 _VCC
GND ⁷
3 _VS1
VS2 ⁶
4 _VD1
VD2 ⁵
IR11^IR6¹8¹⁶⁸
Rg2
SR2
Cout
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