Description
General part information
IR2085 Series
The IR2085S is a self-oscillating half-bridge driver IC with 50% duty cycle ideally suited for 36V – 75V halfbridge DC-bus converters. This product is also suitable for push-pull converters without restriction on input voltage. Each channel frequency is equal to fOSC, which can be set by selecting RT & CT, where fOSC = 1/(2*RT.CT). Dead-time can be controlled through proper selection of CT and can range from 50ns to 200ns. Internal soft-start increases the pulse width during power up and maintains pulse width matching for the high and low outputs throughout the start up cycle. The IR2085S initiates a soft start at power up and after every overcurrent condition. Undervoltage lockout prevents operation if VCC is less than 7.5V.
Technical Specifications
Parameters and characteristics for this part
| Specification | IR2085STRPBF |
|---|---|
| Channel Type | Independent |
| Current - Peak Output (Sink) | 1 A |
| Current - Peak Output (Source) | 1 A |
| Driven Configuration | Half-Bridge |
| Fall Time (Typ) | 20 ns |
| Gate Channel | N-Channel |
| Gate Type | MOSFET, N-Channel MOSFET |
| Grade | Automotive |
| High Side Voltage - Max (Bootstrap) | 100 V |
| Input Type | RC Input Circuit |
| Mounting Type | Surface Mount |
| Number of Drivers | 2 |
| Operating Temperature (Max) | 150 °C |
| Operating Temperature (Min) | -40 °C |
| Package Length | 0.154 in |
| Package Name | 8-SOIC |
| Package Width | 3.9 mm |
| Qualification | AEC-Q100 |
| Rise Time (Typ) | 40 ns |
| Voltage - Supply (Maximum) | 15 V |
| Voltage - Supply (Minimum) | 10 VDC |
Pricing
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