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AH289-PL-B
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Product Detailed Parameters
- Description：IC HALL FAN CTRLR 400MA 5-SIP
- Series：*
- Mfr：Diodes Incorporated
- Package：Bulk
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The AH289-PL-B is a high-voltage Hall-effect smart fan motor controller manufactured by Diodes Incorporated. It integrates a monolithic design with an on-chip Hall sensor for brushless DC (BLDC) motor applications. The device features automatic rotor-lock shutdown and recovery protection to prevent coil damage. It operates within a voltage range of 3.8V to 28V and provides an average output current of 400mA. The component is housed in a 5-SIP package, suitable for through-hole mounting.
Feature Summary
- Integrates an on-chip Hall sensor for precise rotor position detection
- Includes automatic rotor-lock shutdown and recovery circuitry to protect the motor
- Features built-in Zener diode protection for the output driver stage
Applications
- Brushless DC (BLDC) fan motor control
- Computer cooling systems
- Server and data center thermal management fans
Procurement Notes
Verify the specific suffix PL-B against the manufacturer's current datasheet to confirm pinout compatibility and packaging specifications. Ensure the ordering information matches the exact electrical ratings required for the target BLDC application. Cross-reference the component marking with official Diodes Incorporated documentation to authenticate the source and avoid counterfeit components during procurement.
Selection Notes
Select this component for applications requiring integrated Hall sensing without external sensors. It is suitable for designs needing robust protection against rotor lock conditions. Verify that the 3.8V to 28V operating range aligns with the system power supply. Confirm that the 400mA output current capability meets the motor drive requirements.
Part Context
This part belongs to the AH289 series of high-voltage smart fan controllers from Diodes Incorporated. The series is designed specifically for driving BLDC motors in cooling applications. The PL-B suffix typically denotes a specific package variant, such as the 5-SIP configuration, distinguishing it from surface-mount options like SOT89-5.
Replacement Considerations
Compatible substitutes include other parts from the AH289 family, such as AH289-P or AH289-PL-13, provided the package type matches the PCB footprint. Verify functional equivalence regarding voltage range and current capacity before substitution.
