Anachip ATS477A-P-A Single phase hal efect latch Datasheet

ATC
ATS477
Single Phase Hall Effect Latch
„ Features
„ General Description
- On-chip Hall sensor
- 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
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.
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.
„ Applications
- Single-coil Brush-less DC Fan
- Single-coil Brush-less DC Motor
„ Ordering Information
ATS477 X - X X X - X
Wafer Body
Package
Lead
Packing
Magnetic
Characteristics
Blank or
A~Z : if necessary
to specify
P: SIP-4L
S: SOP-7L
L : Lead Free
Blank: Normal
Blank : Tube or Bulk
A : Tape & Reel
A or B
„ Application Circuit
FG
1
2
3
4
1
7
2
6
coil
3
coil
Vcc
4
5
Vcc
(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
ATS477
Single Phase Hall Effect Latch
„ Pin Configuration
(1)SIP-4L
Front View
477
1 2
3
4
Name
P/I/O
Pin #
Description
Vcc
DOB
DO
Vss
P
O
O
P
1
2
3
4
Positive Power Supply
Output Pin
Output Pin
Ground
(2)SOP-7L
Top view
1
2
7
477
3
4
6
5
Name
P/I/O
Pin #
Description
Vcc
DO
DOB
FG
Vss
P
O
O
O
P
3,4
7
5
1
6
Positive Power Supply
Output Pin
Output Pin
Frequency Generator
Ground
Anachip Corp.
www.anachip.com.tw
Rev. A5 Apr 15, 2004
2/7
ATC
ATS477
Single Phase Hall Effect Latch
„ Block Diagrams
(1). SIP-4L
1
1
OUTPUT(DOB)
2
REG.
Hall
Sensor
1
CTL
Amp
CKT
OUTPUT(DO)
3
4
VSS
(2). SOP-7L
4
3
OUTPUT(DOB)
5
REG.
Hall
Sensor
CTL
4
Amp
CKT
OUTPUT(DO)
7
Anachip Corp.
www.anachip.com.tw
6
VSS
1
FG
Rev. A5 Apr 15, 2004
3/7
ATC
ATS477
Single Phase Hall Effect Latch
„ Absolute Maximum Ratings
( at Ta=25oC )
Characteristics
Symbol
Values
Unit
VCC
20
V
Supply voltage
Magnetic flux density
Output “on” current
B
Continuous
Hold
Peak (Start Up)
Unlimited
Ic
Ta
Ts
Operating temperature range
Storage temperature range
SIP-4L
Package Power
PD
Dissipation
SOP-7L
(Note 1) Ground pin must connect to large area copper on PCB as possible.
„ Electrical Characteristics
Characteristic
Symbol
250
300
600
-20~+85
-65~+150
550
800
mA
°C
°C
mW
mW (Note 1)
( Ta=+25°C, Vcc=3.5V to 20V )
Test Conditions
Min
Supply Voltage
-
Vcc
3.5
-
Vcc=14V, Ic=200mA
Output
Saturation Vce(sink)
Voltage
Vce(drive)
Vcc=14V, Ic=200mA
Vcc-1.5
FG Saturation Voltage
Vce
Vcc=14V, IFG=20mA
-
Supply Current
Icc
Vcc=20V, Output Open
-
Output Rise Time
tr
Vcc=14V, RL=820Ω, CL=20pF
-
Output Falling Time
tf
Vcc=14V, RL=820Ω, CL=20pF
-
Switch Time Differential
∆t
Vcc=14V, RL=820Ω, CL=20pF
Typ
Max
Unit
-
500
-
0.3
18
1.0
0.3
1.0
20
800
Vcc
0.7
30
5.0
1.5
5.0
V
mV
V
V
mA
µs
µs
µs
„ Magnetic Characteristics (Ta=+25°C)
(1mT=10Gauss)
A grade
Characteristic
Operate Point
Release Point
Hysteresis
B grade
Characteristic
Operate Point
Release Point
Hysteresis
Symbol
Bop
Brp
Bhy
Min.
5
-70
-
Typ.
60
Max.
70
-5
-
Unit
Gauss
Gauss
Gauss
Symbol
Bop
Brp
Bhy
Min.
-100
-
Typ.
60
Max.
100
-
Unit
Gauss
Gauss
Gauss
Anachip Corp.
www.anachip.com.tw
Rev. A5 Apr 15, 2004
4/7
ATC
ATS477
Single Phase Hall Effect Latch
Output Voltage in Volts
RP
12
Output Voltage in Volts
HYSTERCSIS CHARACTERISTICS
DOB
OFF
10
8
6
4
ON
2
OP
Vsat
DO
12
OFF
OP
10
8
6
4
2
RP
ON
Vsat
100
200
-200
-100
0
Magnetic Flux Density in Gauss
100
200
-200
-100
0
Magnetic Flux Density in Gauss
„ Operation Characteristics
S
S
Marking side
Marking side
N
N
( SOP-7 )
( Output Voltage )
DO
Vcc
Vd
High
Bhy
Low
Vsat
( SIP4 )
Brp
0
Bop
( Magnetic flux density )
„ Marking Information
( Top View )
Part Number
477
X XX X X
Blank : normal
L : Lead Free Package
~
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
ATS477
Single Phase Hall Effect Latch
„ Package Information
(1) SIP-4L
Active Area Depth
Package Sensor Location
Marking side
1.50mm
1.35mm
1
0.7mm
2
3
4
Package Dimension
o
5 -7
o
14.25mm
+/-1.25mm
1.55mm
+/-0.1mm
o
o
3 -5
0.46mm +/-0.03mm
477
5.22mm
+/-0.1mm
4.20mm
+/-0.1mm
o
0.38mm
+/-0.03mm
o
3.65mm
+/-0.1mm
0.30mm
+/-0.1mm
5 -7
o
3 -5
0.38mm
+/-0.03mm
3.81mm
+/-0.03mm
1.03mm
+/-0.1
o
0.2mm Max.
1.42mm+/-0.1mm
Anachip Corp.
www.anachip.com.tw
1.27mm
+/-0.03mm
Rev. A5 Apr 15, 2004
6/7
ATC
ATS477
Single Phase Hall Effect Latch
(2) SOP-7L
C2
C3
B1 B2
A
Y
X
E
C1
C
e
D
β
F
Symbol
A
B1
B2
C
C1
C2
C3
D
E
e
F
X
Y
β
Dimensions In Millimeters
Min.
5.79
3.83
3.78
4.80
1.57
0.32
1.17
0.19
0.48
1.35
-
Nom.
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
Dimensions In Inches
Max.
6.19
3.99
3.94
4.94
1.77
0.48
1.37
0.25
Min.
0.228
0.151
0.149
0.189
0.062
0.013
0.046
0.007
0.88
1.55
-
0.019
0.053
-
Anachip Corp.
www.anachip.com.tw
Nom.
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
Max.
0.244
0.157
0.155
0.194
0.070
0.019
0.054
0.010
0.035
0.061
-
Rev. A5 Apr 15, 2004
7/7
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