AH5772：Single Phase
| Part Number | Data Sheet | SPICE Model | Operating Voltage (V) | SupplyCurrent (mA) | Average OutputDrive Current (mA) | Peak Output Current (mA) | Typical Total RDS(ON)(NMOS and PMOS Combined) (Ω) | Operating Point Bop Gauss (Min) | Operating Point Bop Gauss (Typ) | Operating Point Bop Gauss (Max) | Release Point Brp Gauss (Min) | Release Point Brp Gauss (Typ) | Release Point Brp Gauss (Max) | Soft-Switch | Speed Control (VDD or VDC or PWM) | Lock Detect, Shut-Down and Auto Start | Frequency Generator (FG) and Rotation Detect (RD) | Operating Ambient Temperature (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AH5772 | AH5772.pdf | - | 2.4V to 18V | 3.2 | 450 | 1000 | 1.26 | 5 | 20 | - | 35 | - | - | Yes | PWM VDD | Yes | - | -40 to +105 |
Description
The AH5772 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 AH5772 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 AH5772 is available in industry standard TO94 package.
Application
- 5V / 9V / 12V / 15V Min. BLDC Cooling Fans
- Netbook/ Notebook and Desktop BLDC Fans
- Instruments Cooling Fans
- Medium Voltage/ Low Power BLDC Motors
Features
- Supports Single-phase Full Wave BLDC Fan/Motor Drive
- Wide Operating Voltage Range: 2.4V to 18V
- Built-in High Sensitivity Hall Effect Sensor
- Very Low Temperature and Voltage Coefficient of the Magnetic Operating Switch Points
- Built-in H-Bridge with Low RDSON Resistance
- Soft Switching for Low Noise DC Fan Motor Applications
- Rotor Lock Protection (Lock Detection, Output Shutdown and Automatic Re-start)
- Over Voltage Shutdown
- Thermal Protection
- No External Timing Capacitor - Reduces the Numbers of External Components Required
- Industry Standard TO94 Package
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Ordering Information
- AH5772-P-B
TO94
- AH5772.pdf AH5772
