IR2086STRPBF

Product Summary

The IR2086STRPBF is a self oscillating full-bridge controller and driver IC with 50% duty cycle ideally suited for 36V-75V full-bridge DC Bus Converters. Dead time can be controlled through proper selection of CT and can range from 50 to 200nsec. Internal soft start of the IR2086STRPBF increases pulse width on power up and maintains equal pulse widths for the high and low outputs throughout the start up cycle. Undervoltage lockout prevents operation if Vcc is less than 7.5 Vdc. Over current shutdown of the IR2086STRPBF occurs when the voltage on the Cs pin exceeds 200mV.

Parametrics

IR2086STRPBF absolute maximum ratings: (1)Low side supply voltage: -0.3 to 25 V; (2)High side floating supply voltage: -0.3 to 150 V; (3)High side floating supply offset voltage: VB1,2 - 25 to VB1,2 + 0.3 V; (4)High side floating output voltage: VB1,2 - 0.3 to VB1,2 + 0.3 V; (5)Low side output voltage: -0.3 to VCC + 0.3 V; (6)CT pin voltage: -0.3 to VCC + 0.3 V; (7)Cs pin voltage: -0.3 to VCC + 0.3 V; (8)Delay pin voltage -0.3 to VCC + 0.3 V; (9)Allowable offset voltage slew rate -50 to +50 V/ns; (10)Supply current: 40 mA; (11)Package power dissipation (16-lead SOIC): 1.0 W; (12)Thermal resistance, junction to ambient (16-lead SOIC): 200 ℃/W; (13)Junction temperature: -55 to 150 ℃; (14)Storage temperature: -55 to 150 ℃; (15)Lead temperature (soldering, 10 seconds): 300 ℃.

Features

IR2086STRPBF features: (1)Simple primary side control solution to enable full-bridge DC-Bus Converters for 48V distributed systems with reduced component count and board space.; (2)Frequency and dead time set by two external components; (3)Maximum 500KHz per channel output with 50% duty cycle; (4)Adjustable dead time 50nsec ~ 200nsec; (5)Floating channel designed for bootstrap operation up to +100Vdc; (6)High and low side pulse width matching to +/- 25nsec; (7)Overcurrent protection with adjustable hiccup period.; (8)Undervoltage lockout and internal soft start; (9)Part also available leadfree.

Diagrams