ATS477 [ANACHIP]
Single Phase Hal Efect Latch; 单相哈尔效应锁存
| 型号： | ATS477 |
| 厂家： | 
ANACHIP CORP |
| 描述： | Single Phase Hal Efect Latch |
| 文件： | 总7页 (文件大小：197K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ATC
Single Phase Hall Effect Latch
ATS477
Features
General Description
- On-chip Hall sensor
ATS477 that integrates Hall sensor with output
drivers is designed for electrical commutation of
brush-less DC motor application. The device
includes on-chip Hall voltage generator for
magnetic sensing, the error amplifier that amplifies
the Hall voltage, a comparator that is to provide
switching hysteresis for noise rejection, the
bi-direction drivers for sinking and driving large
current load, and the frequency generator (FG) that
provides a signal proportional to rotation speed.
Internal bandgap regulator is used to provide
temperature compensated bias for internal circuits
and allows a wide operating supply voltage range.
Built-in protection circuit and output shunt Zener
diodes were applied for protecting output drivers
during operating.
- Bi-direction H type output drivers for single coil
- Internal bandgap regulator allows temperature
compensated operations and a wide operating
voltage range
- High output sinking capability up to 250mA
- Operating voltage: 3.5V~20V
- Low output switching current noise
- Build-in shunt Zener protection for output driver
- SOP-7L provide FG output pin
- Package: SIP-4L and SOP-7L
Applications
- Single-coil Brush-less DC Fan
- Single-coil Brush-less DC Motor
If a magnetic flux density is larger than threshold
Bop, DO is turned to sink and DOB is turned to
drive. The output state is held until a magnetic flux
density reversal falls below Brp causing DO to be
turned to drive and DOB turned to sink.
ATS477 is rated for operation over-temperature
range from -20 oC to 85 oC and voltage range from
3.5V to 20V. The devices are available in low cost
die forms or rugged SIP-4L and power SOP-7L
packages.
Ordering Information
ATS477X - X X X - X
Magnetic
Packing
Wafer Body
Lead
Package
P: SIP-4L
Characteristics
Blank or
L : Lead Free
S: SOP-7L Blank: Normal
Blank : Tube or Bulk
A or B
A~Z : if necessary
to specify
A
: Tape & Reel
Application Circuit
FG
1
7
1
2
3
4
2
3
4
6
coil
coil
Vcc
Vcc
5
(SIP-4L)
(SOP 7)
Single-coil 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. A5 Apr 15, 2004
1/7
ATC
Single Phase Hall Effect Latch
ATS477
Pin Configuration
(1)SIP-4L
Front View
477
1 2
3
4
Name
P/I/O
Pin #
Description
Vcc
DOB
DO
P
O
O
P
1
2
3
4
Positive Power Supply
Output Pin
Output Pin
Vss
Ground
(2)SOP-7L
Top view
477
1
2
7
6
5
3
4
Name
P/I/O
Pin #
Description
Vcc
DO
P
O
O
O
P
3,4
7
Positive Power Supply
Output Pin
DOB
FG
5
Output Pin
1
6
Frequency Generator
Ground
Vss
Anachip Corp.
www.anachip.com.tw
Rev. A5 Apr 15, 2004
2/7
ATC
Single Phase Hall Effect Latch
ATS477
Block Diagrams
(1). SIP-4L
1
1
OUTPUT(DOB)
2
REG.
Hall
Sensor
1
CTL
CKT
Amp
OUTPUT(DO)
3
VSS
4
(2). SOP-7L
4
3
OUTPUT(DOB)
5
REG.
Hall
Sensor
4
CTL
CKT
Amp
OUTPUT(DO)
7
VSS
6
1
FG
Anachip Corp.
www.anachip.com.tw
Rev. A5 Apr 15, 2004
3/7
ATC
Single Phase Hall Effect Latch
ATS477
Absolute Maximum Ratings ( at Ta=25oC )
Characteristics
Symbol
Values
Unit
Supply voltage
Magnetic flux density
VCC
B
20
V
Unlimited
Continuous
Hold
250
300
Output “on” current
Ic
mA
Peak (Start Up)
600
Operating temperature range
Storage temperature range
-20~+85
-65~+150
550
°C
°C
mW
Ta
Ts
SIP-4L
SOP-7L
Package Power
PD
Dissipation
800
mW (Note 1)
(Note 1) Ground pin must connect to large area copper on PCB as possible.
Electrical Characteristics ( Ta=+25°C, Vcc=3.5V to 20V )
Characteristic
Supply Voltage
Symbol
Test Conditions
Min
Typ Max Unit
－
－
Vcc
Vce(sink)
Vce(drive)
3.5
－
20
V
Vcc=14V, Ic=200mA
Vcc=14V, Ic=200mA
500 800 mV
Output
Saturation
Voltage
－
Vcc-1.5
Vcc
0.7
30
5.0
1.5
5.0
V
V
mA
µs
µs
µs
FG Saturation Voltage
Vce
Icc
tr
tf
∆t
Vcc=14V, IFG=20mA
0.3
18
1.0
0.3
1.0
－
－
－
－
Supply Current
Vcc=20V, Output Open
Output Rise Time
Vcc=14V, RL=820Ω, CL=20pF
Vcc=14V, RL=820Ω, CL=20pF
Vcc=14V, RL=820Ω, CL=20pF
Output Falling Time
Switch Time Differential
Magnetic Characteristics (Ta=+25°C)
(1mT=10Gauss)
A grade
Characteristic
Operate Point
Release Point
Hysteresis
B grade
Symbol
Min.
Typ.
Max.
Unit
Bop
Brp
Bhy
5
-70
-
-
-
60
70
-5
-
Gauss
Gauss
Gauss
Characteristic
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Release Point
Hysteresis
Bop
Brp
Bhy
-
-100
-
-
-
60
100
-
-
Gauss
Gauss
Gauss
Anachip Corp.
www.anachip.com.tw
Rev. A5 Apr 15, 2004
4/7
ATC
Single Phase Hall Effect Latch
ATS477
HYSTERCSIS CHARACTERISTICS
DOB
DO
12
12
10
8
RP
OFF
OFF
OP
10
8
6
6
4
4
2
2
ON
OP
RP
ON
Vsat
200
Vsat
-200
100
100
200
-200
-100
0
-100
0
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
Operation Characteristics
DO
V
cc
S
N
S
V
d
High
Marking side
Marking side
B
hy
Low
N
V
sat
( SOP-7 )
( SIP4 )
B
rp
B
op
0
( Magnetic flux density )
Marking Information
( Top View )
Blank : normal
Part Number
477
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. A5 Apr 15, 2004
5/7
ATC
Single Phase Hall Effect Latch
ATS477
Package Information
(1) SIP-4L
Active Area Depth
Package Sensor Location
Marking side
1.50mm
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
+/-0.1
+/-0.03mm
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. A5 Apr 15, 2004
6/7
ATC
Single Phase Hall Effect Latch
ATS477
(2) SOP-7L
C2
C3
B1 B2
A
Y
X
E
e
C1
C
D
β
F
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
Nom.
Max.
Min.
Nom.
Max.
0.244
A
B1
B2
C
5.79
3.83
3.78
4.80
1.57
0.32
1.17
0.19
5.99
3.91
3.86
4.87
1.67
0.40
1.27
0.22
1.04REF
0.68
1.45
2.90
2.00
7o
6.19
3.99
3.94
4.94
1.77
0.48
1.37
0.25
0.228
0.151
0.149
0.189
0.062
0.013
0.046
0.007
0.236
0.154
0.152
0.192
0.066
0.016
0.050
0.009
0.041REF
0.027
0.057
0.114
0.079
7o
0.157
0.155
0.194
0.070
0.019
0.054
0.010
C1
C2
C3
D
E
e
0.48
0.88
0.019
0.035
F
1.35
1.55
0.053
0.061
X
-
-
-
-
-
-
-
-
Y
β
Anachip Corp.
www.anachip.com.tw
Rev. A5 Apr 15, 2004
7/7
相关型号：
ATS477-S-B
Magnetic Field Sensor, -10mT Min, 10mT Max, Bipolar, Plastic/epoxy, Rectangular, 8 Pin, Surface Mount, SOP-7
DIODES
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