The LTC4440 4440f High Speed, High Voltage High Side Gate Driver features a wide operating VIN range of up to 80V, a rugged architecture tolerant of 100V VIN transients, a powerful 1.5Ω driver pull-down, a powerful 2.4A peak current driver pull-up, 7ns fall time driving 1000pF load, 10ns rise time driving 1000pF load, drives standard threshold MOSFETs, TTL/CMOS compatible inputs with hysteresis, input thresholds are independent of supply, undervoltage lockout, low profile (1mm) SOT-23 (ThinSOT) TM and thermally enhanced 8-pin MSOP packages.
The LTC4440 high‑side gate driver from Linear Technology is designed for applications requiring up to 80 V input voltage and can tolerate 100 V transients. It provides a powerful 2.4 A peak pull‑up current and a low 1.5 Ω pull‑down resistance, enabling fast switching of power MOSFETs.
The device features TTL/CMOS compatible inputs with 350 mV hysteresis, independent input thresholds, and both low‑side and high‑side undervoltage lockout. It is offered in thin‑SOT (1 mm) and thermally enhanced 8‑lead MSOP packages, with detailed electrical characteristics, package dimensions, and application guidelines included in the datasheet.
| Maximum Input Voltage (continuous) | 80 V |
|---|---|
| Transient Input Voltage Tolerance | 100 V |
| Pull‑Down Output Impedance | 1.5 Ω |
| Rise Time (1 nF load) | 10 ns |
| Fall Time (1 nF load) | 7 ns |
The LTC4440 can operate with input voltages up to 80 V continuously.
Yes, it can tolerate transient input voltages up to 100 V.