IR1166SPbF Datasheet PDF - International Rectifier
| Part Number | IR1166SPbF | |
| Description | SmartRectifier CONTROL IC | |
| Manufacturers | International Rectifier | |
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Data Sheet PD-97237
IR1166SPbF
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
4A peak turn off drive current
Micropower start-up & ultra low quiescent current
10.7V 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
IR1166S 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.
IR1166S Application Diagram
Vin
Rs
Cs
Ci
Rdc
XFM
U1
Cdc
1 VCC VGATE 8
2 OVT GND 7
3 MOT
VS 6
RMOT
4 EN
VD 5
IR1166S
Rg
Co
Rtn Q1
*Please note that this data sheet contains advanced information that could change before the product is released to production.
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IR1166S
Block Diagram
ENA
VDD
VDD
VD
VS
VTH1
MOT
Min ON Time
RESET
VCC
UVLO
&
REGULATOR
DRIVER
VGATE
OVT
VTH3
Min OFF Time
RESET
Vgate
COM
VTH2
VTH1
VTH3
VDS
Lead Assignments & Definitions
Lead Assignment
Pin#
1
1 VCC
2 OVT
3 MOT
4 EN
VGATE
GND
VS
VD
8
7
6
5
2
3
4
5
6
7
8
Symbol
VCC
OVT
MOT
EN
VD
VS
GND
GATE
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Description
Supply Voltage
Offset Voltage Trimming
Minimum On Time
Enable
FET Drain Sensing
FET Source Sensing
Ground
Gate Drive Output
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for IR1166SPbF electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ IR1166SPbF.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| IR1166SPbF | The function is SmartRectifier CONTROL IC. International Rectifier | |
| IR1166SPBF | The function is SmartRectifier Control IC. International Rectifier | |
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