This datasheet provides IRS2108/IRS21084's pin definitions, electrical characteristics, packages, applications, etc.
The IRS2108 and IRS21084 are high‑voltage, high‑speed half‑bridge drivers for MOSFETs and IGBTs. They feature a floating high‑side channel, programmable dead‑time, and support input logic levels of 3.3 V, 5 V and 15 V. The devices operate up to +600 V on the high‑side supply and include protection against negative transients and cross‑conduction.
The datasheet provides detailed pin assignments, package options (8‑lead PDIP, 8‑lead SOIC, 14‑lead PDIP, 14‑lead SOIC), electrical specifications such as supply voltage ranges, propagation delays, dead‑time settings, and quiescent currents, as well as mechanical dimensions for tape‑and‑reel packaging.
| High‑side floating supply voltage range | -0.3 V to 625 V |
|---|---|
| Low‑side supply voltage range | -0.3 V to 25 V |
| Turn‑on propagation delay (typical) | 220 ns |
| Internal dead‑time | 540 ns (programmable up to 5 µs with external resistor for IRS21084) |
| Quiescent supply current (VCC) | 0.4 mA to 1.0 mA (typical 1.6 mA max) |
| Ambient temperature range | -40 °C to 125 °C |
The high‑side floating supply can operate up to +600 V.
The driver accepts 3.3 V, 5 V, and 15 V input logic levels.
It has an internal 540 ns dead‑time and can be programmed up to 5 µs using an external resistor on the DT pin.