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Número de pieza | ATS277 | |
Descripción | Complementary Output Hall Effect Latch | |
Fabricantes | ETC | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de ATS277 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
No Preview Available ! Complementary Output Hall Effect Latch
ATC
ATS276/277
Features
General Description
- On-chip Hall sensor with two different sensitivity
and hysteresis settings for ATS276/277
- 3.5V to 20V operating voltage
- 400mA (avg) output sink current
- Build-in protecting diode only for chip reverse
power connecting
- -20°C to 85°C operating temperature
- Low profile 4 pin SIP package
Applications
- Dual-coil Brush-less DC Motor
- Dual-coil Brush-less DC Fan
- Revolution Counting
- Speed Measurement
ATS276/277 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.
Ordering Information
ATS27X X - X X X - X
Part No.
6 : ATS276
7 : ATS277
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP-4L
Lead
L : Lead Free
Blank: Normal
Packing
Blank : Tube or Bulk
A : Tape & Reel
Magnetic
Characteristics
276:A or B or C
277:A or B
Typical Application Circuit
27X
123 4
Vcc
coil1
coil2
Brush-less DC Fan
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.B1 Mar 17, 2004
1/7
1 page Complementary Output Hall Effect Latch
Performance Characteristics (SIP4)
ATC
ATS276/277
Ta (°C) 25 50 60 70 80 85 90 95 100 105 110 115 120
Pd (mW) 550 440 396 352 308 286 264 242 220 198 176 154 132
Pd (mW)
1000
800
600
400
200
0
0
Power Dissipation Curve
25 50 75 85 100 125 150
Ta (。C)
Typical Magnetic Switch Point VS. Supply Voltage
120
80
40
0
-40
5
12 20
Supply Voltage (V)
Bhys
Bop
Brp
24
Typical Supply Current versus Supply Voltage
16
14
12
10
8
6
4
2
0
0
TA=80oC TA=25oC
TA=-20oC
5 10 15 20
Supply Voltage (V)
25
Anachip Corp.
www.anachip.com.tw
Rev.B1 Mar 17, 2004
5/7
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet ATS277.PDF ] |
Número de pieza | Descripción | Fabricantes |
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