IRS21851 is a high voltage, high speed power MOSFET and IGBT single high-side driver with propagation delay matched output channels. Features: Gate drive supply range from 10 V to 20 V, Undervoltage lockout for V BS and V CC, 3.3 V and 5 V input logic compatible, Tolerant to negative transient voltage, Matched propagation delays for all channels.
The IRS21851SPbF is a high‑voltage, high‑speed single high‑side driver for MOSFETs and IGBTs. It operates from a gate‑drive supply of 10 V to 20 V, accepts 3.3 V and 5 V logic inputs, and tolerates up to 600 V on the floating supply. Propagation delays are matched across all channels, and the device is RoHS compliant.
The datasheet lists absolute maximum ratings, recommended operating conditions, and dynamic electrical characteristics such as typical turn‑on and turn‑off propagation delays of 160 ns. Mechanical information includes tape‑and‑reel dimensions, lead‑free part marking, and order codes for the 8‑lead SOIC package.
| Gate‑drive supply voltage range | 10 V to 20 V |
|---|---|
| Logic input voltage compatibility | 3.3 V and 5 V |
| Propagation delay (typical) | 160 ns |
| Turn‑off propagation delay (typical) | 160 ns |
| Package power dissipation (Ta < +25 °C) | 1.25 W |
| Operating temperature range | -40 °C to 125 °C |
The device is designed for a gate‑drive supply of 10 V to 20 V.
Typical turn‑on and turn‑off propagation delays are 160 ns.
The recommended ambient temperature range is –40 °C to 125 °C.
The driver accepts 3.3 V and 5 V logic input levels.