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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 Output current: IO(AVE) = 400mA for SOT23-5 Package: SIP-4L, SOT23-5L, SOT89-5LPinoutSpecifications ...

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SeekIC No. : 004278806 Detail

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 ...

AH284 Data Sheet

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Part Number:
AH284
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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, SOT89-5L




Pinout

Connection Diagram




Specifications

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





Description

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.






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