FAN7389MX1

FAN7389MX1 is a dual-channel high-voltage MOSFET gate driver from Fairchild/ON Semiconductor. It provides independent HO (high-side) and LO (low-side) outputs to drive a two-MOSFET half-bridge, using a bootstrap circuit for the high-side supply (VB) and a separate VCC supply for the low-side. Designed for high-voltage switching applications, it’s commonly used in offline SMPS, motor drives, and inverter topologies.
Key points:
- Two-gate driver for half-bridge operation (HO and LO)
- Bootstrap high-side drive (VB and VS) with a dedicated VCC rail for low-side
- Protections: undervoltage lockout, and shoot-through prevention
- Logic inputs compatible with standard 3.3/5 V logic
- Typical packaging: MX1 family device
Usage notes:
- Connect HO to the high-side MOSFET gate, LO to the low-side gate, VS to the switching node, VB to the bootstrap capacitor, and VCC/GND as appropriate.
- Include proper bootstrap diode/capacitor sizing and observe rise/fall times and thermal limits.
- Refer to the datasheet for exact electrical characteristics, sequencing, and application circuits.

FAN7389MX1 features (concise):
- Dual high-side/low-side gate driver for a half-bridge with bootstrap operation
- High-side rating VB–VS up to 600 V; low-side supply VCC typically 10–20 V
- Bootstrap circuit enables high-side drive without extra supply
- TTL/CMOS-compatible inputs (independent IN and INB)
- Fast gate drive with high peak sourcing/sinking current (≈1.5 A)
- UVLO protection on VCC and VB–VS; built-in power-on/reset behavior
- Shoot-through protection with dead-time generation to prevent cross-conduction
- 8-pin MX1 package; operating range typically −40°C to +125°C
- Suitable for motor drives, inverters, and power-supply applications

FAN7389MX1 is in a 16-pin SOIC (small-outline) package.

- Pin count: 16 pins (MX1 package, e.g., SO-16).
- Function: Dual high-side/low-side gate driver for a half-bridge. Drives two N-channel MOSFETs with a bootstrap high-side supply (VB–VS) and standard supply (VCC–GND). Provides two gate outputs (HO, LO) and inputs (IN1, IN2) with built‑in protection (e.g., undervoltage/overcurrent protection) for motor drive or switching power applications.

Manufacturer: ON Semiconductor (ON Semi), formerly Fairchild Semiconductor.
Company type: A global American semiconductor company that designs, manufactures, and sells energy-efficient integrated circuits and discrete devices for automotive, industrial, communications, and consumer markets.

FAN7389MX1 is a high‑side/low‑side gate-driver IC for N‑channel MOSFETs (bootstrap powered). Applications: switching power supplies and DC‑DC converters, motor drives (BLDC/stepper) and inverters, and general half‑bridge gate driving in consumer, industrial, and automotive power electronics.

Equivalent devices (dual high-side/low-side bootstrap gate drivers, ~600 V class):
- IR2110S, IR2104S, IR2101S (Infineon/International Rectifier)
- TI UCC27201/UCC27204 (and related UCC2720x family)
Note: pinout and voltage/UVLO specs vary. Verify package, voltage, and bootstrap requirements against FAN7389MX1 before substituting.