ATS276 [ANACHIP]
Complementary Output Hall Effect Latch; 互补输出霍尔效应锁存
| 型号： | ATS276 |
| 厂家： | 
ANACHIP CORP |
| 描述： | Complementary Output Hall Effect Latch |
| 文件： | 总7页 (文件大小：199K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ATC
Complementary Output Hall Effect Latch
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
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,
- 400mA (avg) output sink current
- Build-in protecting diode only for chip reverse
power connecting
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.
- -20°C to 85°C operating temperature
- Low profile 4 pin SIP package
Applications
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.
- Dual-coil Brush-less DC Motor
- Dual-coil Brush-less DC Fan
- Revolution Counting
- Speed Measurement
Ordering Information
ATS27X X - X X X - X
Magnetic
Packing
Part No.
Wafer Body
Lead
Package
P: SIP-4L
Characteristics
Blank or
6 : ATS276
7 : ATS277
L : Lead Free
Blank: Normal
Blank : Tube or Bulk
276:A or B or C
: Tape & Reel 277:A or B
A~Z : if necessary
to specify
A
Typical Application Circuit
27X
coil1
coil2
1
2
3
4
Vcc
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
ATC
Complementary Output Hall Effect Latch
ATS276/277
Block Diagram
1
VCC
DO
2
REG.
Hall Plate
DOB
Amp
3
GND
4
Pin Assignment
Front View
1 : VCC
277
(276)
2 : DO
3 : DOB
4 :GND
1
2
3
4
Name
P/I/O
Pin #
Description
Vcc
DO
DOB
GND
P
O
O
P
1
2
3
4
Power Supply Input
Output Pin
Output Pin
Ground
Anachip Corp.
www.anachip.com.tw
Rev.B1 Mar 17, 2004
2/7
ATC
Complementary Output Hall Effect Latch
ATS276/277
Absolute Maximum Ratings ( at Ta=25°C )
Characteristics
Symbol
Values
Unit
Supply voltage
Reverse VCC Polarity Voltage
Magnetic flux density
VCC
VRCC
B
20
-20
V
V
Unlimited
Continuous
Hold
Peak (Start Up)
0.4
0.5
0.7
Output “on” current
Ic
A
Operating temperature range
Storage temperature range
Package Power Dissipation
Maximum Junction Temp
-20~+85
-65~+150
550
°C
°C
mW
°C
Ta
Ts
PD
Tj
150
Electrical Characteristics ( T=+25°C Vcc = 4.0V to 20V )
Characteristic
Symbol
Conditions
Min
Typ
Max Units
Low Supply Voltage
Supply Voltage
Output Zener Breakdown
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Falling Time
Switch Time Differential
Vce
Vcc
Vz
Vcc=3.5V, IL=100mA
0.4
V
V
V
3.5
20
46
0.3
<0.1
16
3.0
0.3
3.0
Vce(sat) Vcc=14V, IL=300mA
0.6
10
25
10
1.5
10
V
Icex
Icc
tr
tf
∆t
Vce=14V, Vcc=14V
Vcc=20V, Output Open
Vcc=14V, RL=820Ω, CL=20pF
Vcc=14V, RL=820Ω, CL=20pF
Vcc=14V, RL=820Ω, CL=20pF
µA
mA
µs
µs
µs
Test Circuit
14V
277
(276)
DO
DOB
RL1
RL2
CL1 CL2
RL1=RL2=820 Ohm
CL1=CL2=20 pF
Anachip Corp.
www.anachip.com.tw
Rev.B1 Mar 17, 2004
3/7
ATC
Complementary Output Hall Effect Latch
ATS276/277
Magnetic Characteristics( Ta=+25°C)
(1mT=10 Gauss)
A grade
Characteristic
Symbol
Min.
Typ.
Max.
Unit
ATS276
ATS277
ATS276
ATS277
ATS276
ATS277
10
10
-50
-50
-
-
50
50
-10
-10
-
Operate Point
Release Point
Bop
Brp
Bhy
Gauss
-
-
Gauss
Gauss
-
75
75
Hysteresis
-
-
B grade
Characteristic
Symbol
Min.
Typ.
Max.
Unit
ATS276
ATS277
ATS276
ATS277
ATS276
ATS277
5
-
70
70
-5
-5
-
Operate Point
Release Point
Bop
Gauss
5
-
-70
-70
-
-
-
75
75
Brp
Gauss
Gauss
Hysteresis
Bhy
-
-
C grade
Characteristic
Symbol
Bop
Min.
Typ.
Max.
Unit
Operate Point
Release Point
Hysteresis
ATS276
ATS276
ATS276
-
-100
-
-
-
100
Gauss
Gauss
Gauss
Brp
-
-
Bhy
75
DO
DOB
( off-state )
( off-state )
V
cc
V
cc
B
hy
B
hy
Turn on
Turn oFF
Turn off
Turn on
( on-state )
( on-state )
V
sat
V
sat
B
rp
B
op
B
rp
B
op
0
0
( Magnetic flux density B )
( Magnetic flux density B )
Anachip Corp.
www.anachip.com.tw
Rev.B1 Mar 17, 2004
4/7
ATC
Complementary Output Hall Effect Latch
ATS276/277
Performance Characteristics (SIP4)
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)
Power Dissipation Curve
1000
800
600
400
200
0
85
0
25
50
75
100
125
150
Ta (。C)
Typical Magnetic Switch Point VS. Supply Voltage
120
Bhys
Bop
80
40
0
Brp
-40
5
12
20
24
Supply Voltage (V)
Typical Supply Current versus Supply Voltage
16
TA=25oC
TA=80oC
14
12
10
8
TA=-20oC
6
4
2
0
0
5
10
15
20
25
Supply Voltage (V)
Anachip Corp.
www.anachip.com.tw
Rev.B1 Mar 17, 2004
5/7
ATC
Complementary Output Hall Effect Latch
ATS276/277
Operating Characteristics
DO
V
cc
S
V
d
High
Marking side
B
hy
Low
N
V
sat
( SIP4 )
B
rp
B
op
0
S
N
( Magnetic flux density )
Marking Information
( Top View )
Part Number
Blank : normal
27X
L : Lead Free Package
X XX X X
ID Code: A ~ Z
Nth week: 01~52
Year:"1" = 2001
"2" = 2002
Anachip Corp.
www.anachip.com.tw
Rev.B1 Mar 17, 2004
6/7
ATC
Complementary Output Hall Effect Latch
ATS276/277
Package Information
Active Area Depth
Package Sensor Location
Marking side
1.75mm
1.35mm
1
2
3
4
0.7mm
Package Dimension
5o
o
-7
14.25mm
+/-1.25mm
1.55mm
+/-0.1mm
0.38mm
3o-5o
1.03mm
+/-0.03mm
+/-0.1
3.65mm
+/-0.1mm
0.30mm
+/-0.1mm
0.38mm
0.46mm
+/-0.03mm
+/-0.03mm
o
5o
3o-5o
-7
1.27mm
+/-0.03mm
0.2mm Max.
1.42mm+/-0.1mm
Anachip Corp.
www.anachip.com.tw
Rev.B1 Mar 17, 2004
7/7
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