Product Summary
The IR1176 is a high speed CMOS controller designed to drive N-channel power MOSFETs used as synchronous rectifiers in high current, high frequency forward converters with output voltages equal or below 5VDC. Schmitt trigger inputs with double pulse suppression allow the controller to operate in noisy environments. The circuit does not require any ties to the primary side and derives its operating power directly from the secondary.
Parametrics
IR1176 absolute maximum ratings: (1)Supply voltage: 7 VDC; (2)Input clamp current: +/- 10 mADC; (3)Power dissipation (SSOP-20): 400 mW; (4)Thermal resistance (SSOP-20)junction-to-case: 28.5 °C/W; (5)Thermal resistance (SSOP-20)junction-to-ambient: 90.5 °C/W; (6)Junction temperature: 150 ℃; (7)Storage temperature: -55 to 150 ℃; (8)Lead temperature (soldering, 10 seconds): 300 ℃.
Features
IR1176 features: (1)Provides constant and proper gate drive to power MOSFETs regardless of transformer output; (2)Minimizes loss due to power MOSFET body drain diode conduction; (3)Stand alone operation - no ties to primary side; (4)Schmitt trigger input with double pulse suppression allows operation in noisy environments; (5)High peak current drive capability - 4A; (6)High speed operation - 2MHz; (7)Adaptable to multiple topologies.
Diagrams

| Image | Part No | Mfg | Description | ![]() |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
![]() |
![]() IR1176STR |
![]() |
![]() IC DRIVER RECT SYNC 5V 4A 20SSOP |
![]() Data Sheet |
![]() Negotiable |
|
||||
![]() |
![]() IR1176S |
![]() International Rectifier |
![]() IC DRIVER SYNC 5V 4A 20-SSOP |
![]() Data Sheet |
![]() Negotiable |
|
||||
![]() IR1176 |
![]() |
![]() IC DRIVER SYNC 5V 4A 20-DIP |
![]() Data Sheet |
![]() Negotiable |
|
|||||
(China (Mainland))










