This datasheet introduces the features and characteristics of MC34151/MC33151 high-speed dual MOSFET drivers, including low input current, CMOS and LSTTL compatible inputs, output rise and fall times, low standby current, and high-frequency operation.
The MC34151 and MC33151 are dual inverting high‑speed drivers designed for low‑current digital circuitry that must drive large capacitive loads with fast slew rates. They feature CMOS/LSTTL‑compatible inputs with hysteresis, two independent 1.5 A totem‑pole outputs, and an undervoltage lockout with hysteresis.
The datasheet provides maximum ratings, electrical characteristics, switching performance, and application guidance for use in switching power supplies, DC‑DC converters, charge‑pump voltage doublers, and motor controllers. Package dimensions and ordering information are also included.
| Supply Voltage (Voc) | 20 V |
|---|---|
| Totem‑Pole Sink/Source Current | 1.5 A |
| Maximum Power Dissipation (SOIC‑8) | 0.56 W |
| Thermal Resistance, Junction‑to‑Air (SOIC‑8) | 180 °C/W |
| Output Rise Time (10%‑90%, CL=1.0 nF) | 14 ns |
| Input Threshold Voltage (High‑to‑Low) | 1.75 V |
The maximum supply voltage (Voc) is 20 V.
The typical output rise time is 14 ns.
Each totem‑pole output can source or sink up to 1.5 A.