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Número de pieza | AH276Q | |
Descripción | COMPLEMENTARY OUTPUT HALL EFFECT LATCH | |
Fabricantes | Diodes Incorporated | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de AH276Q (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
No Preview Available ! AH276Q
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
Features
• On-chip Hall sensor with two different sensitivity and
hysteresis settings for AH276
• Built-in protecting diode only for chip reverse power
connecting
• -20°C to 85°C operating temperature
• Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
• Lead Free Package: SIP-4L
General Description
AH276 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、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.
Applications
• Dual-coil Brush-less DC Motor
• Dual-coil Brush-less DC Fan
• Revolution Counting
• Speed Measurement
Ordering Information
AH276 X - X X X- X
Version
Q
Package Lead Free
P: SIP-4L L : Lead Free
Packing
-B : Bulk
Magnetic
Characteristics
A: A grade (Note 3)
B: B grade (Note 3)
C: C grade (Note 3)
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
AH276Q-P
Lead-free
Package Packaging
Tube/Bulk
Code
(Note 2) Quantity Part Number Suffix
P
SIP-4
1000
-B
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.
3. Please refer to page 4 (Magnetic Characteristics table).
AH276Q Rev. 1
1 of 6
www.diodes.com
JANUARY 2007
© Diodes Incorporated
1 page AH276Q
COMPLEMENTARY OUTPUT HALL EFFECT LATCH
Performance Characteristics (SIP-4L)
TA (°C)
PD (mW)
TA (°C)
PD (mW)
PD (m W )
600
500
400
300
200
100
0
0
25 50 60 70 80
550 440 396 352 308
105 110 115 120 125
198 176 154 132 110
Pow er D issipation C urve
25 50 75 85
85
286
130
88
100
90 95 100
264 242 220
135 140 150
66 44
0
125 150
TA (。 C)
Marking Information
Part Number
( Front View )
276
Y WW X x
Internal code a~z : Lead Free
Y :Year: "1" = 2001
"2" = 2002
WW : Nth week : 01~52
X : Version : Q
AH276Q Rev. 1
5 of 6
www.diodes.com
JANUARY 2007
© Diodes Incorporated
5 Page |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet AH276Q.PDF ] |
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