ATS236
Complementary Output Hall Effect Sensor
Features
- Bipolar Hall effect sensor
- 4V to 20V operating voltage
- 300mA (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
General Description
ATS236 is a four-terminal Hall effect sensor device
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.
Applications
- Dual-coils Brush-less DC Motor
- Dual-coils Brush-less DC Fan
- Revolution Counting
- Speed Measurement
Ordering Information
ATS236 X - X X X
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
Typical Circuit
236
coil1
coil2
1
Vcc
2
3
4
5V/12V 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. A4 Mar 17, 2003
1/7
ATS236
Complementary Output Hall Effect Sensor
Absolute Maximum Ratings
( at Ta=25°C )
Characteristics
Supply voltage
Reverse V
CC
Polarity Voltage
Magnetic flux density
Continuous
Output “on” current
Hold
Peak (Start Up)
Operating temperature range
Storage temperature range
Package Power Dissipation
Maximum Junction Temp
Symbol
V
CC
V
RCC
Values
20
-20
Unlimited
0.3
0.4
0.7
-20~+85
-65~+150
550
150
A
°C
°C
mW
°C
Unit
V
V
B
Ic
T
a
T
s
PD
Tj
Electrical Characteristics
( Ta = +25°C Vcc = 4.0V to 20V )
Characteristic
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
Symbol
Vce
Vcc
Vz
Vce(sat)
Icex
Icc
tr
tf
∆t
Conditions
Vcc=4V, IL=100mA
4
Vcc=14V, IL=300mA
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
35
0.3
<0.1
16
3.0
0.3
3.0
Min
Typ
0.4
20
0.7
10
25
10
1.5
10
Max
Unit
V
V
V
V
µA
mA
µs
µs
µs
Test Circuit
14V
236
RL1
RL2
CL1 CL2
DO
DOB
RL1=RL2=820 Ohm
CL1=CL2=20 pF
Anachip Corp.
www.anachip.com.tw
3/7
Rev. A4 Mar 17, 2003
ATS236
Complementary Output Hall Effect Sensor
Performance Characteristics (SIP4)
Ta (°C)
25
50
60
70
80
85
90
95
100
220
105
198
110
176
115
154
120
132
Pd (mW) 550 440 396 352 308 286 264 242
P d (m W )
600
500
400
300
200
100
0
25
50
75 85
100
125
150
T a (。 C )
P o w e r D is s ip a tio n C u rve
Note:SIP-4L package.
Typical Magnetic Switch Point VS. Supply Voltage
120
Flux Density (G)
Bhys
80
Bop
40
0
-40
5
12
20
Brp
24
Supply Voltage (V)
Typical Supply Current versus Supply Voltage
16
14
12
10
8
6
4
2
0
0
5
Supply Current (mA)
TA=80
o
C
TA=25
o
C
TA=-20
o
C
10
15
20
25
Supply Voltage (V)
Anachip Corp.
www.anachip.com.tw
5/7
Rev. A4 Mar 17, 2003