View AH287-PL-13_736369.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Features
* * * * * * * * On chip Hall sensor Rotor-locked shutdown Automatically restart Built-in Zener protection for output driver Operating voltage: 3.8V~28V Output current: IO(AVE) = 400mA Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) Lead Free Packages: SIP-4L and SOT89-5L
General Description
AH287 is a monolithic fan motor controller with Hall sensor's capability. It contains two complementary open-drain drivers for motor's coil driving, automatic lock shutdown and restart function relatively. Rotor-lock shutdown detection circuit turns off the output driver when the rotor is blocked to avoid coil overheat. Then, the automatic recovery circuit will restart the motor. These protected actions are repeated and periodic during the blocked period. Until the blocking is removed, the motor recovers and runs normally.
Ordering Information
AH287 - X X X
Package P: SIP-4L Y: SOT89-5L
Note: 1.
Lead-Free L : Lead Free
Packing -B : -13 : Bulk Taping
RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Lead-free
AH287-P AH287-Y
Package Code P Y
Packaging (Note 2) SIP-4L SOT89-5L
Quantity 1000 NA
Tube/Bulk Part Number Suffix -B NA
7" Tape and Reel Quantity Part Number Suffix NA NA 2500/Tape & Reel -13
Lead-free
Note: 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.
AH287 Rev. 4
1 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Pin Assignment
Front View
1 : Vdd 2 : DO 3 : DOB 4 : GND 12 3 4
Pin Descriptions
287
Name Vdd DO DOB GND NC
Description Input power Output pin Output pin Ground Not connected
SIP-4L
Vdd 1 GND 2 DO 3 SOT89-5L 287
5 NC
7 DOB 4
Block Diagram
Vdd 1
(SIP-4L)
Lock shutdown and Automatic recovery Regulator
2
Hall Plate
DO
Amp.
Control Logic
3
DOB
4 GND
AH287 Rev. 4
2 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Typical Application Circuit (SIP-4L)
24V D2
287
D1
1 2 3 4
L2
L1
GND
DOB D3
C1
DO
48V
48V
24V brush-less DC fan
Note: 3. The optional Capacitor C1 and Diode D3 are for power stabilization. C1 is recommended to be E-Cap., luF/25V; D3 is recommended to be Zener Diode, VZ =27V. Which C1and D3 value need to be fine tuned to optimize design for different coils and power suppliers.
Absolute Maximum Ratings
Characteristics Supply Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Maximum Junction Temp. Thermal Resistance
(TA = 25C)
IO(AVE) PD
JA
Symbol Vdd SIP-4L/SOT89-5L IO(PEAK) SIP-4L SOT89-5L Topr Tstg Tj SIP-4L SOT89-5L
Rating 30 400 700 550 800 -40 ~ 100 -55 ~ 150 150 227 156
Unit V mA mW C C C C/W C/W
TA TJ Tc
JA
JC
Note:
4.
JA
should be confirmed with what heat sink thermal resistance. If no heat sink contacting,
JA
is almost the same as
JC .
AH287 Rev. 4
3 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Electrical Characteristics
Characteristics Supply Voltage Supply current Output Leakage Current Locked Protection On Locked Protection Off Output saturation voltage Output On resistance Output Zener-breakdown Voltage
(TA = 25 C, Vdd =24V, unless otherwise specified)
Symbol Vdd Icc Ioff Tlrp-on Tlrp-off
VOUT( sat )
Conditions Operating Operating VOUT=24V
Min. 3.8 0.4 2.4 42
Typ. 2.0 < 0.1 0.46 2.76 450 680 2.25 55
Max. 28* 4.0 10 0.6 3.6 700 800 3.5 65
Unit V mA A Sec Sec mV ohm V
Rds(on) Vz
IO=200mA IO=300mA IO=200mA
*Note: Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil.
Truth Table INH L -
IN+ L H -
CT L L H
OUT1 H L off
OUT2 L H off
Mode Rotating Rotating Lockup protection activated
Magnetic Characteristics
(TA = 25 C, Vdd = 24V, unless otherwise specified)
(1mT=10 Gauss) Characteristics Operate Point Release Point Hysteresis Symbol Bop Brp Bhy Min. 10 -60 -Typ. 30 -30 60 Max. 60 -10 -Unit Gauss Gauss Gauss
AH287 Rev. 4
4 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Operating Characteristics
DOB DO
Output Voltage in Volts
RP
24 20 16 12 8
Output Voltage in Volts
OFF
OFF
24 20 16 12 8
OP
ON
4
OP Vsat
RP
4
ON
Vsat Brp 0 Bop
Brp
0
Bop
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
S
Marking side
S
Marking side
N
( SIP4 )
N
( SOT89-5 )
AH287 Rev. 4
5 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Performance Characteristics
TA (C) PD (mW) TA (C) PD (mW)
P D (mW ) 600 500 400 300 200 100 0 0 15 30 45
(SIP-4L)
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
Power Dissipation Curve
60
75
90
105 100
120
135
150 T A (C)
Performance Characteristics
TA (C) PD (mW) TA (C) PD (mW)
P D (m W )
900 800 700 600 500 400 300 200 100 0 0 25
(SOT89-5L)
25 800 105 288
50 640 110 256
60 576 115 224
70 512 120 192
75 480 125 160
80 448 130 128
85 416 135 96
90 384 140 64
95 352 145 32
100 320 150 0
P o w e r D is s ip a tio n C u rve
50
75
100
125
150
T A ( C )
AH287 Rev. 4
6 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Marking Information
(1) SIP-4L
( Front View ) Part Number
287
Y WW X x
L : Lead Free Package Y :Year: "1" = 2001 "2" = 2002 WW : Nth week 01~52 X : Internal Code: A~Z
(2) SOT89-5L
5
4
7
Y : Year: 0-9 M : Month: A~L
287 Y M X
X : Internal code a~z : Lead Free
1
2
3
AH287 Rev. 4
7 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Package Information
(1) SIP-4L
(unit: mm)
Active Area Depth
Marking side
Package Sensor Location
1.97mm 1.04mm
0.7mm
1
2
3
4
Package Dimension
AH287 Rev. 4
8 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Package Information
(2) SOT89-5L
(Continued)
Sensor Location
AH287 Rev. 4
9 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products 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 our website, harmless against all damages. LIFE SUPPORT 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.
AH287 Rev. 4
10 of 10 www.diodes.com
JANUARY 2007
(c) Diodes Incorporated

▲Up To Search▲

Price & Availability of AH287-PL-13

	To Download AH287-PL-13 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .