NRND = Not Recommended for New Design
SINGLE PHASE LOW NOISE SMART MOTOR DRIVER
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The AH5775 is a single chip solution for driving single-coil brushless direct current (BLDC) fans and motors. The integrated full-bridge driver output stage uses soft switching to minimize audible switching noise and electromagnetic interference (EMI) providing a low noise solution.
To simplify system circuit and minimize external components, the device integrates a stable high sensitivity Hall-Effect sensor, voltage and temperature compensated internal references, amplifiers and the output H-bridge power switches with low RDSON.
To help protect the motor coil, the AH5775 provides Rotor Lock Protection which shuts down the output drive if rotor lock is detected. The device automatically re-starts when the rotor lock is removed. In case of over voltage, the device shuts down the output drive and enters standby mode to help prevent over voltage stress on the coil. Over temperature shutdown provides thermal protection for the device.
The AH5775 is available in TO94 package.
| Average OutputDrive Current (mA) | 300 |
|---|---|
| Frequency Generator (FG) and Rotation Detect | - |
| Lock Detect, Shut-Down and Auto Start | Yes |
| Operating Ambient Temperature (°C) | -40 to 105 |
| Operating Point Bop Gauss (Max) | 90 |
| Operating Point Bop Gauss (Min) | 50 |
| Operating Point Bop Gauss (Typ) | 70 |
| Operating Voltage (V) | 2.5 to 18 |
| Peak Output Current (mA) | 800 |
| Release Point Brp Gauss (Max) | -50 |
| Release Point Brp Gauss (Min) | -90 |
| Release Point Brp Gauss (Typ) | -70 |
| Soft-Switch | Yes |
| Speed Control | VDD |
| SupplyCurrent (mA) | 3 |
| Typical Total RDS(ON)(NMOS and PMOS Combined) | - |
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2654 | 2024-02-15 | 2024-04-28 | Device End of Life (EOL) |
