AH5771
SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
Features
• • • • • • • • 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)
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.
Typical Application Circuit
POWER
D1 V dd
AH5771
D2 C V SS
O1 O2
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
DS31656
1 of 6 www.diodes.com
JUNE 2009
© Diodes Incorporated
AH5771
SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
Ordering Information
A H 5 771 - P G - B
Package P : SIP-4L
Green
Packing B : Bulk
G : Green
Device AH5771-PG-B
Notes:
Package Code P
Packaging (Note 2) SIP-4L
Quantity 1000
Bulk Part Number Suffix -B
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at 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 http://www.diodes.com/datasheets/ap02001.pdf.
Pin Assignment
( Top View )
5771
1: 2: 3: 4: 12 3 4 Vdd O1 O2 Vss
SIP-4L
Pin Description
Pin Name Vdd O1 O2 VSS Pin No. 1 2 3 4 Description Power supply pin Output driving & sinking pin Output driving & sinking Pin Ground pin
AH5771 Rev. 3
DS31656
2 of 6 www.diodes.com
JUNE 2009
© Diodes Incorporated
AH5771
SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
Block Diagram
Vdd
Regulator
Full Bridge Driver
Q1
Q3
Hall Sensor
AMP
Logic Block Lock Detector
O1
Q2 Q4
O2
V SS
Absolute Maximum Ratings
Symbol Vdd IO (peak as hold) PD TST Supply voltage
(Unless otherwise noted, at TA= 25°C) Values 18 400 SIP-4L 550 -55 ~ 150 Unit V mA mW
o
Characteristics
Output Current (Peak as hold) Power Dissipation Storage Temperature Range
C
Recommended Operating Conditions
Symbol Vdd TA Characteristics Supply voltage Operating Temperature Range Conditions Operating Operating Ratings 2.5~15 -40 to +100 Unit V °C
Electrical Characteristics
Symbol Idd VOH VOL TON RDR
(TA = 25°C, Vdd = 12V; unless otherwise specified) Conditions No Load IOUT = 200mA IOUT = 200mA Vdd = 12V TOFF / TON Min 11.4 Typ. 3.5 220 10 Max 5 0.6 Unit mA V V ms
Characteristics Supply Current Output Voltage High Output Voltage Low On Time Duty Ratio
AH5771 Rev. 3
DS31656
3 of 6 www.diodes.com
JUNE 2009
© Diodes Incorporated
AH5771
SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
Magnetic Characteristics
Symbol Bop Brp Bhy Operate Point Release Point Hysteresis
(TA=25°C, Vdd=2.5V~15V) (1mT = 10 G) Max Unit 50 -10 G G G
Characteristic
Min -10 -50 -
Typ. 30 -30 60
Performance Characteristics
TA (°C) PD (mW) TA (°C) PD (mW)
P D (m W ) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T A ( °C )
25 550 105 198
50 440 110 176
60 396 115 154
70 352 120 132
80 308 125 110
85 286 130 88
90 264 135 66
95 242 140 44
100 220 150 0
P o w e r D is s ip a tio n C u rve
Marking Information
( Top View ) Part Number
5771 Y WW X
Y : Year : 0~9 WW : Week : 01~52, "52" represents 52 and 53 week X : Internal Code : A~Z : Green
SIP-4L
AH5771 Rev. 3
DS31656
4 of 6 www.diodes.com
JUNE 2009
© Diodes Incorporated
AH5771
SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
Package Information
(1) Package type: SIP-4L
(All Dimensions in mm)
Marking side
1.1士0.1mm
1.95士0.1mm
0.7 mm
1
2
3
4
Active Area Depth
Package Dimension
Sensor Location
AH5771 Rev. 3
DS31656
5 of 6 www.diodes.com
JUNE 2009
© Diodes Incorporated
AH5771
SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
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Customers represent that they have all necessary expertise in the safety and regulatory ramifications 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 indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2009, Diodes Incorporated www.diodes.com
AH5771 Rev. 3
DS31656
6 of 6 www.diodes.com
JUNE 2009
© Diodes Incorporated
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