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The AM4953 is a single-phase BTL output fan motor driver designed by bipolar process. This IC features high efficiency, silent operation and includes lock shutdown and automatic restart functions. When the motor is under lock condition, the lock shutdown function turns off the output current. When the lock condition is removed, the IC will restart automatically and allow DC fan to run. It is applied for high reliability and low noise application, such as personal computers, notebook, car audio, CPU cooling systems and power supplies in consumer electronics systems.
| Average OutputDrive Current (mA) | - |
|---|---|
| Frequency Generator (FG) and Rotation Detect | FG and RD |
| Hall Bias Voltage (V) | 1.5 |
| Lock Detect, Shut-Down and Auto Start | Yes |
| Operating Ambient Temperature (°C) | - |
| Operating Voltage (V) | 2.2 to 24 |
| Other Protection Features | Thermal Shutdown |
| Peak Output Current (mA) | - |
| Reference Voltage Output (V) | - |
| Speed Control | VDD |
| Speed Control Slope Adjust | - |
| SupplyCurrent (mA) | 5 |
