Diodes AH5771 User Manual

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AH5771

SINGLE PHASE HALL EFFECT LATCH SMART FAN

MOTOR CONTROLLE R

Features

• Support single-phase full wave min fan driver

• Built-in Hall sensor input amplifier

• Low voltage startu p ( 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)

Typical Application Circuit

POWER

General Description

AH5771 is the integrated Hall sensor with output driv ers 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 driv ing 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.

AH5771

Note: D2 (Zenor Diode) and Capacitor C are for power stabilization, D2 is recommended to be 18Vz (option), C is recommended to 0.1uF ~1uF (E-Cap). D1 (reverse Diode) is for reverse voltage protection.

AH5771 Rev. 3 1 of 6 JUNE 2009

DS31656

www.diodes.com © Diodes Incorporated

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Ordering Information

AH5771

SINGLE PHASE HALL EFFECT LATCH SMART FAN

MOTOR CONTROLLE R

A H 5 771 - P G - B

Package

P : SIP-4L

Device

AH5771-PG-B P SIP-4L 1000 -B

Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/datasheets/ap02001.pdf.

http://www.diodes.com/products/lead_free.html

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

Package Code

Green

G : Green

Packaging

(Note 2)

Quantity Part Number Suffix

Packing

B : Bulk

Bulk

Pin Assignment

( Top View )

5771

1 : Vdd 2 : O1

3 : O2 4 : Vss

12 43

SIP-4L

Pin Description

Pin Name

Vdd 1 Power supply pin

O1 2 Output driving & sinking pin O2 3 Output driving & sinking Pin

VSS 4 Ground pin

AH5771 Rev. 3 2 of 6 JUNE 2009

DS31656

Pin No.

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Description

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Block Diagram

AH5771

SINGLE PHASE HALL EFFECT LATCH SMART FAN

MOTOR CONTROLLE R

Regulator

Full Bridge Driver

Hall

Sensor

AMP

Logic Block

Lock

Detector

Absolute Maximum Ratings (Unless otherwise noted, at TA= 25°C)

Symbol Characteristics Values Unit

Vdd Supply voltage 18 V

(peak as hold)

Output Current (Peak as hold) 400 mA

PD Power Dissipation SIP-4L 550 mW

TST Storage Temperature Range -55 ~ 150

Recommended Operating Conditions

Symbol Characteristics Conditions Ratings Unit

Vdd Supply voltage Operating 2.5~15 V

TA Operating Temperature Range Operating -40 to +100

°C

Electrical Characteristics (TA = 25°C, Vdd

= 12V; unless otherwise specified)

Symbol Characteristics Conditions Min Typ. Max Unit

Idd Supply Current No Load - 3.5 5 mA VOH Output Voltage High I VOL Output Voltage Low I TON On Time Vdd = 12V - 220 - ms RDR Duty Ratio T

AH5771 Rev. 3 3 of 6 JUNE 2009

DS31656

www.diodes.com © Diodes Incorporated

= 200mA 11.4 - - V

OUT

= 200mA - - 0.6 V

OUT

/ TON - 10 -

OFF

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AH5771

SINGLE PHASE HALL EFFECT LATCH SMART FAN

MOTOR CONTROLLE R

Magnetic Characteristics (TA=25°C, Vdd=2.5V~15V)

(1mT = 10 G)

Symbol Characteristic Min Typ. Max Unit

Brp Release Point -50 -30 -10 G

Bhy Hysteresis - 60 - G

Performance Characteristics

PD (mW)

Operate Point -10 30 50 G

(°C)

TA (°C)

25 50 60 70 80 85 90 95 100

550 440 396 352 308 286 264 242 220

105 110 115 120 125 130 135 140 150

198 176 154 132 110 88 66 44 0

(m W )

600 500 400 300 200 100

0 255075100125150

Marking Information

Part Number

Power Dissipation Curve

( Top View )

5771

Y WW X

Y : Year : 0~9

52 and 53 week

X : Internal Code : A~Z : Green

(°C )

: Week : 01~52, "52" represents

SIP-4L

AH5771 Rev. 3 4 of 6 JUNE 2009

DS31656

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SINGLE PHASE HALL EFFECT LATCH SMART FAN

Package Information (All Dimensions in mm)

(1) Package type: SIP-4L

AH5771

MOTOR CONTROLLE R

0.7mm

Active Area Depth

Package Dimension

Marking side

1.95士0.1mm

1.1士0.1mm

1234

Sensor Location

AH5771 Rev. 3 5 of 6 JUNE 2009

DS31656

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AH5771

SINGLE PHASE HALL EFFECT LATCH SMART FAN

MOTOR CONTROLLE R

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).

Diodes Incorporated and its subs idiaries reserve the right to make modific ations, enhancem ents, improvem ents, correctio ns or other changes without further notic e to this document and any product des cri bed herein. Diodes Inc orporat ed does not assum e any liabi lity arising out of the applicati on or use of this document or any produc t described herein ; neither does Diodes In corporat ed convey any license under its patent or trademark rights, nor the rights of others . Any Customer or user of t his document or produc ts described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages.

Diodes Incorporated do es not warrant or accept an y liabilit y whatsoever in re spect of any product s purchased through unaut horized sales channel. Should Customers purchase or use Diod es Incorporated products for any unintend ed or unauthorized application, Custom ers shall indemnify and hold Diodes Incorpor ated and its repres entatives harmless agai nst all claims, damages , expenses, and atto rney fees arising out of, directly or indi re ct l y, any c l a im of person al i nj u ry or death ass oci a t e d with suc h uni nte nde d or un authorized application.

Products described h erein may be covered by one or more United States, i nternational or f oreign patents pendi ng. Product names and markings noted herein may also be covered by one or more Uni ted S tates, international or foreign trademarks.

Diodes Incorporated products are specific ally not authorized for use as critical components in life support devic es or systems without the express written approval of t he Chief Execut ive Officer of Diodes Incorporated. As used herein:

A. Life support devices or systems are devices or systems which:

1. are intended to implant into the body, or

2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user.

B. A critical component is any component i n a life support device or syst em whose failu re to perform can be reasonably expec ted

to cause the failure of the life support device or to affect its safety or effectiveness.

Customers represent that they have all nec essary expertise in the safet y and regulatory ramificati ons of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnif y Diodes Incorporated and its representati ves against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.

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IMPORTANT NOTICE

LIFE SUPPORT

AH5771 Rev. 3 6 of 6 JUNE 2009

DS31656