AH5795-WU-7 Diodes Inc., AH5795-WU-7 Datasheet - Page 6

• Manufacturer Part Number: AH5795-WU-7
• Description: Motor / Motion / Ignition Controllers & Drivers Hall Driver,TSOT26,T Driver,TSOT26,3K
• Manufacturer: Diodes Inc.
• Type: Single Phase Hall Effect Latch Smart Fan Motor Controllerr

Specifications of AH5795-WU-7

• Rohs: yes
• Product: Fan / Motor Controllers / Drivers
• Operating Supply Voltage: 1.8 V to 6 V
• Supply Current: 2.2 mA
• Operating Temperature: - 40 C to + 105 C
• Mounting Style: SMD/SMT
• Package / Case: TSOT-23-6
• Output Current: 500 mA

Operating Characteristics
Truth Table
Notes:
AH5795
Document number: DS35277 Rev. 1 - 2
Magentic
O1
O2
O1
FG
H
10. X: H or L depends on magnetic pole north or South
L
L
9. When “Re-start spinning” occurs, the motor speed ramps up to the “Normal Spinning” speed from zero. Speed ramp-up profile depends on motor
7. In “Normal spinning, the FG changes its state at each edge of O1.
8. When the motor locks with South pole at the Hall element, O2 is kept on “L” and O1 is a clock with Ton/Toff ratio. When motor locks with North pole
at the Hall element, O1 is kept on “L”, O2 is a clock with Ton/Toff ratio.
characteristics.
N
S
Normal spinning
O2
H
L
L
(cont. Note 7, 8, 9 and 10)
PWM
motor locked detected
H
H
L
www.diodes.com
Ton
SINGLE PHASE HALL EFFECT LATCH SMART
6 of 13
Mechanical lock
Toff
X (Note 10)
FG
H
L
FAN MOTOR CONTROLLER
“Re-start spinning”
motor locked cleared
AH5795
© Diodes Incorporated
August 2011