BD6974FV is a single-phase full-wave motor driver that is suitable for fan motors. This product has the following features: 1. It is compatible with external Tr pre-drivers; 2. It can control the motor speed through DC/PWM input; 3. It uses a PWM soft switching drive mode.
The BD6974FV is a single‑phase full‑wave motor driver designed for fan motors. It features a pre‑driver compatible with external TR, speed control via DC/PWM input, and PWM soft‑switching drive. The document provides absolute maximum ratings, electrical characteristics, package dimensions, pin assignments, and safety cautions.
Key specifications include a supply voltage up to 20 V, power dissipation of 874.7 mW, operating temperature range from –40 °C to +100 °C, and output voltage limits of 36 V (high side) and 15 V (low side). The datasheet also outlines recommended design practices and protection measures for reliable operation.
| Supply voltage (VEC) | 20 V |
|---|---|
| Power dissipation (PD) | 874.7 mW |
| Operating temperature range | -40 °C to +100 °C |
| High side output voltage (VOH) | 36 V |
| Low side output voltage (VOL) | 15 V |
| Low side output current (IOL) | 10 mA |
| Reference voltage (VREF) | 5.0 V (typ.) |
The maximum supply voltage (VEC) is 20 V.
It can operate from –40 °C to +100 °C.
The typical reference voltage (VREF) is 5.0 V.
The high‑side output voltage limit is 36 V and the low‑side output voltage limit is 15 V.