AH266 [ANACHIP]
High Voltage Hall Effect Latch; 高压霍尔效应锁存
| 型号： | AH266 |
| 厂家： | 
ANACHIP CORP |
| 描述： | High Voltage Hall Effect Latch |
| 文件： | 总6页 (文件大小：165K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AH266
High Voltage Hall Effect Latch
ꢀFeatures
ꢀ General Description
- On-chip Hall plate
AH266 is an integrated Hall sensor with output
drivers designed for electronic commutation of
brush-less DC motor applications. The device
includes an on-chip Hall voltage generator for
magnetic sensing, a comparator that amplifies the
Hall voltage, and a Schmitt trigger to provide
switching hysteresis for noise rejection, and
complementary darlington open-collector drivers for
sinking large current loads. An internal bandgap
regulator is used to provide temperature
compensated supply voltage for internal circuits and
allows a wide operating supply range.
- Operating voltage: 4V~28V
- Output current: 400mA(Continuous, 25oC)
- Reverse protection diode only for chip reverse
(Note)
power connecting
- Output protection Zener breakdown Vz=62V(Typ)
- Package: SIP-4L
(Note)
Protection diode only exists at power pin(1,4) output, not
including pin (2,3).
If a magnetic flux density (B) is larger than operate
point (Bop), DO turn on (low) and DOB turn off
(high). The outputs state is latched prior to reach
release point (Brp). if B< Brp, DO turn off and DOB
turn on. ATS266 is rated for operation over
temperature range from -20oC to 85 oC and voltage
range from 4V to 28V. The devices are available in
low cost die forms or rugged 4 pin SIP packages.
ꢀ Application
- Dual-coil Brush-less DC Motor
- Dual-coil Brush-less DC Fan
- Revolution Counting
- Speed Measurement
ꢀ Pin Assignment
ꢀ
Pin Configuration
4. GND
3. DOB
2. DO
1. VCC
Name
Description
VCC
DO
Positive Power Supply
Output Pin
DOB
GND
Output Pin
Ground
ꢀOrdering Information
AH266 X - X X X - X
Magnetic
Packing
Blank : Tube
Wafer Body
Package
P: SIP-4L
Lead
Characteristics
Blank or
L : Lead Free
A or B
A~Z : if necessary
to specify
Blank: Normal
A
: Taping
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. 0.1 Mar 25, 2004
1/6
AH266
High Voltage Hall Effect Latch
ꢀBlock Diagram
VCC
1
DO
REG.
Hall
Plate
Amp
DOB
ꢀApplication Circuit
266
coil1
coil2
1
2
3
4
Vcc
Brush-less DC Fan
Note: This application circuit can’t protect reverse coil current if power is connecting reverse.
Anachip Corp.
www.anachip.com.tw
2/6
Rev 0.1 Mar 25, 2004
AH266
High Voltage Hall Effect Latch
ꢀAbsolute Maximum Ratings (at Ta = 250C )
Parameter
Symbol
Rating
Unit
Supply voltage
VCC
Vout (off)
Io (con)
Io (hold)
Io (peak)
B
28
28
V
V
Output “OFF ” voltage
400 (Note 1)
500
mA
mA
mA
Gauss
°C
Output “ON” current
700
Magnetic flux density
Unlimited
-20~+85
-65~+150
550
Operating temperature range
Storage temperature range
Power dissipation (Note 2)
Top
Tstg
°C
PD
mW
Note 1: Io(con) is 150 mA at 85°C
2: See Performance Characteristic for other conditions
ꢀ Electrical Characteristics ( Ta = 25°C )
Characteristic
Supply Voltage
Output Zener Breakdown
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Falling Time
Switch Time Differential
Symbol
Conditions
Min
Typ
－
Max
Unit
－
Vcc
Vz
4
28
70
1.5
10
10
5
V
V
V
µA
mA
µs
µs
µs
Output Turn off
54
－
－
－
－
－
－
62
Vce(sat) Vcc=24V, Ic=400mA
1.1
< 0.1
5
Icex
Icc
tr
tf
∆t
Vce=24V, Vcc=24V
Vcc=24V, Output Open
Vcc=24V, RL=820Ω, CL=20pF
Vcc=24V, RL=820Ω, CL=20pF
Vcc=24V, RL=820Ω, CL=20pF
1.0
1.0
3.0
1.5
10
ꢀ Test Circuit
24V
266
Vout1(DO)
RL1
RL2
Vout2(DOB)
CL2
CL1
RL1=RL2=820 Ohm
CL1=CL2=20 pF
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Mar 25, 2004
3/6
AH266
High Voltage Hall Effect Latch
ꢀ Magnetic Characteristics (Ta=+25oC)
(1mT = 10 Gauss)
A grade
Characteristic
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Release Point
Hysteresis
Bop
Brp
Bhy
10
-70
-
-
-
80
70
-10
-
Gauss
Gauss
Gauss
B grade
Characteristic
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Release Point
Hysteresis
Bop
Brp
Bhy
-
-100
-
-
-
80
100
-
-
Gauss
Gauss
Gauss
DOB
DO
Turn on
Bhy
Turn off
Turn off
Bhy
Turn on
Vsat
Vsat
Brp
Bop
Brp
Bop
0
0
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
ꢀ Performance Characteristics (SIP-4L)
Ta (°C)
25 50 60 70 80 85 90 95 100
105
198
110
176
115
154
120
132
Pd (mW) 550 440 396 352 308 286 264 242 220
Pd (mW)
Power Dissipation Curve
1000
800
600
400
200
0
85
0
25
50
75
100
125
150
Ta (。C)
Anachip Corp.
www.anachip.com.tw
Rev 0.1 Mar 25, 2004
4/6
AH266
High Voltage Hall Effect Latch
ꢀ Operation Characteristics
DO
V
cc
S
V
d
High
Marking side
B
hy
Low
N
V
sat
B
rp
B
op
( SIP4 )
0
S
N
( Magnetic flux density )
ꢀ Marking Information
( Front View )
Blank: normal
Part Number
266
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 0.1 Mar 25, 2004
5/6
AH266
High Voltage Hall Effect Latch
ꢀ Package Information
Active Area Depth
Package Sensor Location
Marking side
1.971mm
1.046mm
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
0.30mm
+/-0.1mm
+/-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 0.1 Mar 25, 2004
6/6
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