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

IR1176pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
IR1176STR
IR1176STR


IC DRIVER RECT SYNC 5V 4A 20SSOP

Data Sheet

Negotiable 
IR1176S
IR1176S

International Rectifier

IC DRIVER SYNC 5V 4A 20-SSOP

Data Sheet

Negotiable 
IR1176
IR1176


IC DRIVER SYNC 5V 4A 20-DIP

Data Sheet

Negotiable