IR11672ASPBF International Rectifier, IR11672ASPBF Datasheet - Page 16

• Manufacturer Part Number: IR11672ASPBF
• Description: IC MOSFET DRIVER 200V 8-SOIC
• Manufacturer: International Rectifier
• Series: Advanced Smart Rectifier™r

Specifications of IR11672ASPBF

• Configuration: Half Bridge
• Input Type: Non-Inverting
• Delay Time: 60ns
• Current - Peak: 2A
• Number Of Configurations: 1
• Number Of Outputs: 2
• Voltage - Supply: 11.4 V ~ 18 V
• Operating Temperature: -25°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: *
• Part Status: Active and Preferred
• Package: 8-Pin SOIC(NB)
• Circuit: Switching Regulator Controller
• Topology: Flyback / Resonant Half-Bridge
• Current Mode: Discontinuous / Critical
• Vcc (min): 11.4
• Vcc (max): 18
• Vout (max): 200
• Iout (a): +2 / -7
• Switch Freq (khz): up to 500kHz
• Vgate Clamp (v): 10.7
• Programmability: MOT / OVT
• Enable Pin: Yes
• Isleep (ua): 200
• Automatic Mot Protection: Yes
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• High Side Voltage - Max (bootstrap): -
• Lead Free Status / Rohs Status: RoHS Compliant part

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Resonant Half-Bridge Application
The typical application circuit of IR11672A in LLC half-bridge is shown in Figure 7.
In resonant half-bridge converter, the turn-on phase and turn-off phase is similar to flyback except the current
shape is sinusoid. The typical operation waveform can be found below.
Vin
Rtn
Gate Drive
Blanking
M1
M2
V
I
V
V
SEC
TH1
TH2
DS
Lr
Cr
Figure 7: Resonant half-bridge application circuit
T1
Figure 6: Secondary side DCM/CrCM operation
Lm
T1
MOT
T2
Rcc1
Rcc2
Rmot1
16
Rmot2
1
2
3
4
1
2
3
4
VCC
OVT
MOT
EN
IR11672A
VCC
OVT
MOT
EN
IR11672A
GATE
GND
10us blanking
CVCC1
CVCC2
GATE
VD
VS
GND
VD
VS
V
TH3
8
7
6
5
8
7
6
5
M4
M3
Rg1
time
time
Rg2
© 2009 International Rectifier
IR11672AS
Cout
VOUT