AH286：Two 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) | Typical Zener Breakdown Voltage (V) | Grade | 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) | Lock Detect, Shut-Down and Auto Start | Frequency Generator (FG) and Rotation Detect (RD) | Operating Ambient Temperature (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AH286 | - | - | 3.8 to 20 | 2 | 500 | 700 | 1.25 @ 12V | 42 | - | 10 | 30 | 60 | -60 | -30 | -10 | Yes | RD | -40 to +100 |
Description
The AH286 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors. The device includes a Hall-effect sensor, dynamic offset correction and two complementary open-drain output drivers with internal Zener diode protection. To help protect the motor coils, the AH286 provides Rotor Lock Protection which shuts down output drives if rotor lock is detected. The device automatically re-starts when the rotor lock is removed. A Rotor-lock Detect (RD) output flag allows external monitoring of any motor locks.
Application
- Two-coil BLDC cooling fans
- Low to medium voltage, low power BLDC motors
Features
- Single-chip solution
- Operating Voltage: 3.8V to 20V
- Built-in Hall sensor and input amplifier
- Rotor-lock Detect (RD) flag
- Rotor Lock Protection (Lock detection, output shutdown and automatic re-start)
- Built-in Zener protection for output driver
- Average output current up to 500mA
- Packaged in SOT89-5L
- Green Molding Compound
Ordering Information
- AH286-PL-B
SOT89-5L
