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AH211

Features: · On-Chip Hall Sensor· 3.5V to 16V Supply Voltage· 400mA (avg) Output Sink Current· -20oC to 85oC Operating Temperature· Built-in FG Output· Low Profile TO-94 (SIP-4L) Package· ESD Rating: 300V (Machine Model)Application· Dual-Coil Brushless DC Motor· Dual-Coil Brushless DC Fan· Revoluti...

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SeekIC No. : 004278794 Detail

AH211: Features: · On-Chip Hall Sensor· 3.5V to 16V Supply Voltage· 400mA (avg) Output Sink Current· -20oC to 85oC Operating Temperature· Built-in FG Output· Low Profile TO-94 (SIP-4L) Package· ESD Rating:...

AH211 Data Sheet

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Part Number:
AH211
Supply Ability:
5000

Price Break

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

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Upload time: 2024/9/16

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Product Details

Description



Features:

· On-Chip Hall Sensor
· 3.5V to 16V Supply Voltage
· 400mA (avg) Output Sink Current
· -20oC to 85oC Operating Temperature
· Built-in FG Output
· Low Profile TO-94 (SIP-4L) Package
· ESD Rating: 300V (Machine Model)


Application

· Dual-Coil Brushless DC Motor
· Dual-Coil Brushless DC Fan
· Revolution Counting
· Speed Measurement


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Value
Unit
Supply Voltage
VCC
20
V
Magnetic Flux Density
B
Unlimited
Gauss
Output Current Continuous
IO
400
mA
Hold
600
mA
Peak (start up)
800
mA
FG Current
IFG
20
mA
Power Dissipation
PD
550
mW
Thermal Resistance Die to atmosphere
JA
227
/W
Die to package case
JC
49
/W
Storage Temperature
TSTG
-50 to 150
ESD (Machine Model)
300
V
ESD (Human Body Model)
3000
V

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. "Absolute Maximum Ratings" for extended period may affect device reliability.


Description

The AH211 is an integrated Hall sensor with output driver and frequency generator designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall sensor for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, a temperature compensation circuit to compensate the temperature drift of Hall sensitivity, two complementary open-collector drivers for sinking large load current. It also includes an internal band-gap regulator which is used to provide bias voltage for internal circuits.

Place the AH211 in a variable magnetic field, while the magnetic flux density is larger than threshold BOP, DO will be turned on (low) and DOB (and FG) will be turned off (high). This output state is held till the magnetic flux density reversal falls below BRP causing DO to be turned off (high) and DOB (and FG) turned on (low).

AH211 is available in TO-94 (SIP-4L) package.




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