ATS276 by Diodes Incorporated Datasheet | DigiKey

ATS276 Datasheet by Diodes Incorporated

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ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 1 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
Lead-free
Lead-free
Lead-free
Lead-free
Lead-free
x On-Chip Hall Sensor with Two Different Sensitivity and
Hysteresis Settings for ATS276
x 3.5V to 20V Operating Voltage
x 400mA (avg.) Output Sink Current
x Built-in Protecting Diode Only for Chip Reverse Power
Connecting
x -20qC to 85qC Operating Temperature
x Low Profile 4 Pin SIP Package
x Lead Free package: SIP-4L
x SIP-4L: Available in “Green” Molding Compound
(No Br, Sb)
x Lead Free Finish/RoHS Compliant (Note 1)
ATS276 are integrated Hall sensors with output drivers, mainly
designed for electronic commutation of brush-less DC Fan. This
IC internally includes the regulator, protecting diode, Hall plate,
amplifier, comparator, and a pair of complementary
open-collector outputs (DO, DOB).
While the magnetic flux density (B) is larger than operate point
(Bop),DO will turn on (low), and meanwhile DOB will turn off
(high). Each output is latched until B is lower than release point
(Brp), and then DO
ᇬ
DOB transfer each state.
For DC fan application, sometimes need to test power reverse
connection condition. Internal diode only protects chip-side but
not for coil-side. If necessary, add one external diode to block the
reverse current from coil-side.
x Dual-Coil Brush-Less DC Motor
x Dual-Coil Brush-Less DC Fan
x Revolution Counting
x Speed Measurement
ATS276 X - P X - B - X
P : SIP-4L
Package Lead Free
L : Lead Free
Version Magnetic
Characteristics
G or H A or B or C
(Note 3)
Packing
B : Bulk
G : Green
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Device Package
Code Packaging
(Note 2)
Bulk Magnetic
Characteristics
Quantity Part Number Suffix
ATS276G-PL-B-A P SIP-4L 1000 -B A
S276G-PL-B-B P SIP-4L 1000 -B B
ATS276G-PL-B-C P SIP-4L 1000 -B C
ATS276H-PL-B-A P SIP-4L 1000 -B A
ATS276H-PL-B-B P SIP-4L 1000 -B B
ATS276H-PG-B-A P SIP-4L 1000 -B A
TS276H-PG-B-B P SIP-4L 1000 -B B
Notes: 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
http://www.diodes.com/datasheets/ap02001.pdf.
3. Please refer to page 5 (Magnetic Characteristics table).
Features General Descriptionʳ
Applications
Ordering Information ʳ
W> $31 6 H
ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 2 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
Pin Assignments
276
12 43
( Top View )
SIP-4L
Pin Descriptions
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Block Diagram
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1
REG.
Hall Plate
Amp
DO
GND
2
3
4
VCC
DOB
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Name P/I/O Pin # Description
Vcc P 1 Power Supply Input
DO O 2 Output Pin
DOB O 3 Output Pin
GND P 4 Ground
$11,, s1;
ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 3 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
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12 43
276 Coil 1 Coil 2
Vcc
R1 R2
C1 C2
R1 = R2 = 47O
C1 = C2 = 2.2 uF
The R, C value need to be fine tuned
based on coils design.
Brush-Less DC Fan
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Absolute Maximum Ratings (TA = 25
q
C)ʳ
Symbol Characteristics Values Unit
VCC Supply Voltage 20 V
VRCC Reverse VCC Polarity Voltage -20 V
B Magnetic Flux Density Unlimited
Ic Output “on” Current
Continuous 0.4
AHold 0.5
Peak (Start Up) 0.7
TSStorage Temperature Range
ST R
-65~+150 qC
PDPackage Power Dissipation
Pk P Dii i
550 mW
TJMaximum Junction Temperature
Mi J i T
150 qC
Recommended Operating Conditions
Symbol Characteristic Conditions Min Max Unit
VCC Supply Voltage (Note 4) Operating 3.5 20 V
TA
Operating Ambient Temperature
(Note 5) Operating -20 85
qC
Notes: 4. The output DO/DOB is switching as magnetic field change (S>300G, N<-300G).
5. Shall not exceed PD and Safety Operation Area.
Typical Application Circuit
ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 4 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
Electrical Characteristics (TA = +25
q
C, Vcc = 4.0V to 20V)
Symbol Characteristic Conditions Min Typ. Max Units
Vce Low Supply Voltage Vcc = 3.5V, IL= 100mA 0.4 V
Vz Output Zener Breakdown (Note 6) 46 V
Vce
(
SAT
)
Output Saturation Voltage Vcc = 14V, IL= 300mA 0.3 0.6 V
Icex Output Leakage Current Vce = 14V, Vcc = 14V <0.1 10 μA
Icc Supply Current Vcc = 20V, Output Open 16 25 mA
tr Output Rise Time Vcc = 14V, RL= 820:, CL= 20pF 3.0 10 μs
tf Output Falling Time Vcc = 14V, RL= 820:, CL= 20pF 0.3 1.5 μs
'tSwitch Time Differential Vcc = 14V, RL= 820:, CL= 20pF 3.0 10 μs
Notes: 6. The Vz may vary with the inductance/resistance of DC Fan. In order to reduce the risk of dynamic operation, the capacitor/ resistor is
recommended to add below the DO/DOB as Application Circuit (see General Description on page 1).
Test Circuit
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276
CL 1 CL 2
14V
DO
DOB
RL1 = RL 2 = 820 Ohm
CL 1 = CL 2 = 20 pF
RL 2
RL 1
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ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 5 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
Magnetic Characteristics (TA = +25
q
C, Vcc = 14V)
( 1mT = 10 Gauss )
A grade
Symbol Characteristic Min Typ. Max Unit
Bop Operation Point 10 - 50 Gauss
Brp Release Point -50 - -10 Gauss
Bhy Hysteresis - 75 - Gauss
B grade
Symbol Characteristic Min Typ. Max Unit
Bop Operation Point 5 - 70 Gauss
Brp Release Point -70 - -5 Gauss
Bhy Hysteresis - 75 - Gauss
C grade
Symbol Characteristic Min Typ. Max Unit
Bop Operation Point - - 100 Gauss
Brp Release Point -100 - - Gauss
Bhy Hysteresis - 75 - Gauss
Bhy
VSAT
Vcc
( Output Voltage )
Brp Bop
0
( Magnetic Flux Density B )
DO
Turn on
Turn off
( off-state )
( on-state )
Bhy
VSAT
Vcc
( Output Voltage )
Brp Bop
0
( Magnetic Flux Density B )
DOB
Turn oFF
Turn on
( off-state )
( on-state )
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++++ ¢¢¢+
ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 6 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
Operating Characteristics
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Marking side
S
Bhy
Vsat
Vcc
( Output Voltage )
Vd
Brp Bop
0S
N
( Magnetic Flux Density )
DO
High
Low
( SIP-4L )
N
ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 7 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
Performance Characteristics
T
A
(
q
C) 25 50 60 70 80 85 90 95 100
PD (mW) 550 440 396 352 308 286 264 242 220
T
A
(
q
C) 105 110 115 120 125 130 135 140 150
PD (mW) 198 176 154 132 110 88 66 44 0
Power Dissipation Curve
0
200
400
600
800
1000
0 25 50 75 100 125 150
TA (°C)
PD (mW)
85
Typical Magnetic Switch Point vs. Supply Voltage
-40
0
40
80
120
5122024
Supply Voltage (V)
Flux Density (G)
Bhys
Bop
Brp
T yp ical S u p p ly C urren t v s. S up p ly V oltag e
0
2
4
6
8
10
12
14
16
0 5 10 15 20 25
Supply Voltage (V)
Supply Current (mA)
TA = 25oC
TA = 80oC
TA = -20oC
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ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 8 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
Marking Information
276X
Part Number
( Top View )
Y WW X X : Version : G or H
SIP-4L
X : Internal Code : A~Z : Green
Y : Year : 0~9
WW : Week : 01~52, "52" represents
52 and 53 week
a~z : Lead Free
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Package Information (All Dimensions in mm)
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Active Area Depth Package Sensor Location
Marking side
0.7mm
1.⭺0.1mm
1234
1.95⭺0.1mm
Package Dimension
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IMPORTANT NOTICE Diodes IncorporaIed and us suhsrorarres reserve the nghI Io make modmcatmns‘ enhancements. rmprovemems oorrecnons m othev changes wuhom hrnher nohce In any pmducI herern. Dmdes IncorpmaIed does nm assume any hahrhry arrsmg our ol the apphcahon or use aI any manual aescnheo havem‘ nerrher ooes u convey any Imense under us pa|enr ngms‘ nonhe nghls m others The user or pmoucrs m such aophcahons shaII assume aII nsks m such use and will agreem hour Diodes Incorporated and aII me campameswhuse pmducIs are represented on nurwebsne‘ harmless agarnsl aII damages. LIFE SUPPORT Diodes Incmpmaled prooums are hm athuhzedmruseascvmcaImmponenIs m lhfesuppon nevrcesersyscemswrrhom Iheexpressed wmrerr appravaI ohhe Presrdem m Dumas Incmpumed
ATS276
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
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ATS276 Rev. 1 9 of 9 DECEMBER 2008
www.diodes.com ©Diodes Incorporatedʳ
IMPORTANT NOTICE
LIFE SUPPORT
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.
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.