Key facts
- Model
- IR2085S
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-07-10
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International IOR Rectifier IR2085S (PbF) handbook
The document describes the features and characteristics of the IR2085S, a high-speed, 100V, self-oscillating 50% duty cycle, half-bridge driver. The product is suitable for half-bridge DC-bus converters in 48V distributed systems, reducing component count and board space. It features an integrated 50% duty cycle oscillator and half-bridge driver in a single SO-8 package. Each channel has a programmable switching frequency of up to 500kHz. The drive current capability is +/-1.0A, optimized for low charge MOSFETs. The adjustable dead-time ranges from 50ns to 200ns. The floating channel is designed for bootstrap operation up to +100Vdc. The high and low side pulse width matching is within +/-25ns. It also has adjustable overcurrent protection, undervoltage lockout, and internal soft start.
Read onlineInternational Rectifier IR2085S specifications
| Maximum switching frequency per channel | 500 kHz |
|---|---|
| Drive current capability | +/- 1 A (typ.) |
| Adjustable dead‑time range | 50 ns – 200 ns |
| Package type | SO‑8 |
| Operating voltage range (half‑bridge) | 36 V – 75 V |
| Maximum supply voltage (Vb) | 150 V |
All International Rectifier IR2085S documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum switching frequency of the IR2085S?
The device can operate up to 500 kHz per channel.
What package does the IR2085S use?
It is supplied in an SO‑8 surface‑mount package.