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International Rectifier Electronic Components Datasheet

IR1167ASPBF Datasheet

SmartRectifier CONTROLLER

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PRELIMINARY
Data Sheet PD60254A
IR1167ASPbF
IR1167BSPbF
SmartRectifierTM CONTROL IC
Features
• Secondary side high speed SR controller
• DCM, CrCM and CCM flyback topologies
• 200V proprietary IC technology
• Max 500KHz switching frequency
• Anti-bounce logic and UVLO protection
• 7A peak turn off drive current
• Micropower start-up & ultra low quiescent current
• 10.7/14.5V gate drive clamp
• 50ns turn-off propagation delay
• Vcc range from 11.3V to 20V
• Direct sensing of MOSFET drain voltage
• Minimal component count
• Simple design
• Lead-free
• Compatible with 1W Standby, Energy Star, CECP, etc.
Description
Package
IR1167S is a smart secondary side driver IC designed to drive N-Channel power MOSFETs
used as synchronous rectifiers in isolated Flyback converters.
The IC can control one or more paralleled N-MOSFETs to emulate the behavior of Schottky
diode rectifiers. The drain to source voltage is sensed differentially to determine the polarity
of the current and turn the power switch on and off in proximity of the zero current transi-
tion.
Ruggedness and noise immunity are accomplished using an advanced blanking scheme
and double-pulse suppression which allow reliable operation in continuous, discontinuous
8-Lead SOIC
and critical current mode operation and both fixed and variable frequency modes.
IR1167 Application Diagram
Vin
Rs
Cs
Ci
XFM
Rdc
RMOT
U1
1 VCC
2 OVT
3 MOT
4 EN
VGATE
GND
VS
VD
IR1167S
8
7
6
5
Rg
Cdc
Co
Rtn Q1
*Please note that this data sheet contains advanced information that could change before the product is released to production.
www.irf.com
1


International Rectifier Electronic Components Datasheet

IR1167ASPBF Datasheet

SmartRectifier CONTROLLER

No Preview Available !

IR1167AS/BS
PRELIMINARY
Absolute Maximum Ratings
Stress beyond those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications are not implied. All voltages are absolute voltages referenced
to GND. Thermal resistance and power dissipation are measured under board mounted and still air conditions.
Parameters
Supply Voltage
Enable Voltage
Cont. Drain Sense Voltage
Pulse Drain Sense Voltage
Source Sense Voltage
Gate Voltage
Operating Junction Temperature
Storage Temperature
Thermal Resistance
Package Power Dissipation
ESD Protection
Switching Frequency
Symbol
VCC
VEN
VD
VD
VS
VGATE
TJ
TS
RθJA
PD
VESD
fsw
Min.
-0.3
-0.3
-3
-5
-3
-0.3
-40
-55
Max.
20
20
200
200
20
20
150
150
128
970
2
500
Units
Remarks
V
V
V
V
V
V VCC=20V, Gate off
°C
°C
°C/W SOIC-8
mW SOIC-8, TAMB=25°C
kV Human Body Model*
kHz
Recommended Operating Conditions
Recommended operating conditions for reliable operation with margin
Parameters
Symbol Min. Max.
Supply Voltage
Operating Junction Temperature
Ambient Temperature
VCC 12 18
TJ -25 125
TA -25 85
Switching Frequency
fsw 40 400
Units
V
°C
°C
kHz
Remarks
* Per EIA/JESD22-A114-B( discharging a 100pF capacitor through a 1.5kseries resistor).
www.irf.com
2


Part Number IR1167ASPBF
Description SmartRectifier CONTROLLER
Maker International Rectifier
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IR1167ASPBF Datasheet PDF






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