AH291-PL-B Diodes Zetex, AH291-PL-B Datasheet - Page 2

• Manufacturer Part Number: AH291-PL-B
• Description: IC HALL FAN CTRLR 400MA SIP-4
• Manufacturer: Diodes Zetex

Specifications of AH291-PL-B

• Applications: Fan Controller, Brushless (BLDC)
• Number Of Outputs: 2
• Current - Output: 400mA
• Voltage - Supply: 1.8 V ~ 5.75 V
• Operating Temperature: -20°C ~ 100°C
• Mounting Type: Through Hole
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Other names: AH291-PL-BDI

Pin Descriptions
Functional Block Diagram
AH291
Document number: DS31041 Rev. 8 - 2
Pin Name
DOB
GND
Vdd
DO
NC
Regulator
Vdd
Input Power
Output Pin
Output Pin
Ground
Not Connected
Plate
Hall
Description
Amp.
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
GND
www.diodes.com
automatic re-start
shutdown and
Control Logic
Lock detect,
2 of 9
CONTROLLER
DO
DOB
© Diodes Incorporated
AH291
June 2010