ah5771 Diodes, Inc., ah5771 Datasheet

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ah5771

Manufacturer Part Number
ah5771
Description
Single Phase Hall Effect Latch Smart Fan Motor Controller
Manufacturer
Diodes, Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ah5771-PG-B
Manufacturer:
Diodes Inc
Quantity:
1 988
Part Number:
ah5771-PG-B
Manufacturer:
DIODES/美台
Quantity:
20 000
Features
Ordering Information
Notes:
AH5771 Rev. 2
AH5771-PG-B
Device
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes.
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
Support single-phase full wave min fan driver
Built-in Hall sensor input amplifier
Low voltage startup ( Vdd=2.5V )
Lock detection and automatic self-restart
Without external timing capacitor, Reduces the
numbers of external component required
Low profile package : SIP-4L
SIP-4L: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish / RoHS Compliant (Note 1)
http://www.diodes.com/datasheets/ap02001.pdf.
Package Code
P : SIP-4L
Package
P
A H 5 771 - P G - B
Packaging
SINGLE PHASE HALL EFFECT LATCH SMART FAN
www.diodes.com
(Note 2)
SIP-4L
G : Green
Green
1 of 7
General Description
AH5771 is the integrated Hall sensor with output drivers designed
for electrical commutation of brush-less DC motor application.
The device is as follows: one-chip Hall voltage generator for
magnetic sensing; the error amplifier that amplifies the Hall
voltage; a comparator is to provide switching hysteresis for noise
rejection; the full bridge driver for sinking and driving current load.
Internal band gap regulator is used to provide temperature
compensated bias for internal circuits and allows a wide
operating supply voltage range. The device includes features
such as Rotor Lock Protection with rotor lock detection and
automatic self-restart to avoid damage to the coil when the rotor
is blocked. AH5771 is rated for operation over-temperature range
from -40℃ to 100℃ and voltage range from 2.5V to 15V. The
device is available in low profile package SIP-4L.
Quantity
1000
Packing
B : Bulk
MOTOR CONTROLLER
Bulk
Part Number Suffix
©
JANUARY 2008
AH5771
-B
Diodes Incorporated

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ah5771 Summary of contents

Page 1

... AH5771 Rev. 2 SINGLE PHASE HALL EFFECT LATCH SMART FAN General Description AH5771 is the integrated Hall sensor with output drivers designed for electrical commutation of brush-less DC motor application. The device is as follows: one-chip Hall voltage generator for magnetic sensing; the error amplifier that amplifies the Hall voltage ...

Page 2

... Pin Assignment Pin Description Pin Name Pin No. Vdd AH5771 Rev. 2 SINGLE PHASE HALL EFFECT LATCH SMART FAN ( Top View ) 5771 1 : Vdd Vss SIP-4L Description Power supply pin Output driving & sinking pin Output driving & sinking Pin ...

Page 3

... POWER Notes (Zenor Diode) and Capacitor C are for power stabilization recommended to be 18Vz (option recommended to 0.1µF ~1µF (E-Cap). AH5771 Rev. 2 SINGLE PHASE HALL EFFECT LATCH SMART FAN Full Bridge Driver Q1 Logic AMP Block Q2 Lock Detector ...

Page 4

... ON R Duty Ratio DR Magnetic Characteristics Symbol Operate Point B op Brp Release Point B Hysteresis hy AH5771 Rev. 2 SINGLE PHASE HALL EFFECT LATCH SMART FAN (Unless otherwise noted Characteristics SIP-4L Conditions Operating Operating (T = 25°C, Vdd = 12V; unless otherwise specified) A Conditions No Load I = 200mA ...

Page 5

... P (mW Marking Information Part Number AH5771 Rev. 2 SINGLE PHASE HALL EFFECT LATCH SMART FAN 440 396 352 308 110 115 120 125 176 154 132 110 ...

Page 6

... Package Information (1) Package type: SIP-4L 0.7 mm Active Area Depth Package Dimension AH5771 Rev. 2 SINGLE PHASE HALL EFFECT LATCH SMART FAN (All Dimensions in mm) Marking side 1.95 士 0.1mm 1.1 士 0.1mm www.diodes.com AH5771 MOTOR CONTROLLER Sensor Location JANUARY 2008 © Diodes Incorporated ...

Page 7

... Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AH5771 Rev. 2 SINGLE PHASE HALL EFFECT LATCH SMART FAN IMPORTANT NOTICE ...

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