Features: On chip Hall sensor Rotor-locked shutdown Automatically restart Built-in Zener protection for output driver Operating voltage: 3.8V~20 V Output current: IO(AVE) = 500mA for SIP-4/SOT89-5 Output current: IO(AVE) = 400mA for SOT23-5 Package: SIP-4L, SOT23-5L, SOT89-5LPinoutSpecifications ...
AH284: Features: On chip Hall sensor Rotor-locked shutdown Automatically restart Built-in Zener protection for output driver Operating voltage: 3.8V~20 V Output current: IO(AVE) = 500mA for SIP-4/SOT89-5 ...
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Motor / Motion / Ignition Controllers & Drivers 3.8V-20V 500MA 60G -60G
Characteristics |
Symbol |
Rating |
Unit | |
Supply voltage |
Vdd |
24 |
V | |
Output Current |
IO(AVE) |
SIP4/SOT89-5 |
500 |
mA |
SOT23-5 |
400 | |||
IO(PEAK) |
700 | |||
Power Dissipation |
PD |
SIP4 |
550 |
mW |
SOT23-5 |
230 | |||
SOT89-5 |
800 | |||
Operating temperature range |
Topr |
-40 ~ 100 |
°C | |
Storage temperature range |
Tstg |
-55 ~ 150 |
°C | |
Maximum Junction Temp. |
Tj |
150 |
°C | |
Thermal Resistance |
jc |
SIP4 |
227 |
°C/W |
SOT23-5 |
543 | |||
SOT89-5 |
156 |
Part Number | AH284 |
Output | Comp. |
Description | Hall Effect Smart Fan Motor Controller |
Operating Voltage (V) | 3.8 to 20 |
Typical Supply Current (Ave) | |
Output Current (Ave) | 500mA |
Operating Point Bop (Gauss) | 5/60 |
Release Point Brp (Gauss) | -60/-5 |
Operating Ambient Temp Range (°C) | -40 to +100 |
AH284 is a monolithic fan motor controller with Hall sensor's capability. AH284 contains two complementary open-drain drivers for motor's coil driving, automatic lock shutdown and restart function relatively.To avoid coil burning, rotor-lock shutdown detection circuit shut down the output driver if the rotor is blocked and then the automatic recovery circuit will try to restart the motor. This function repeats while rotor is blocked. Until the blocking is removed, the motor recovers running normally.