HI-SINCERITY
MICROELECTRONICS GROUP.
Spec. No. : IC200903
Issued Date : 2009.02.12
Revised Date :
Page No. : 1/6
H288
Complementary Output Hall Effect Sensor IC
Description
H288 is designed to integrate Hall sensor with output driver together on the same chip. It is
suitable for dual coils brush-less DC motors, dual coils brush-less DC Fan, Speed
measurement, and revolution counting.
SIP-4L Package
It includes a bandgap reference voltage source, a Hall device, a amplifier, a Hysteresis
controller and a open-collector output drive capable of sinking up to 300mA current load. An
on-chip protection diode is implemented to prevent reverse power fault.
H288 has a control circuit to prevent “dead angle” from logic race condition in DC Fan. It has excellent characteristic of
temperature compensation. The internal temperature compensated voltage source can let sensor to get uniform sensitivity in a
wide temperature range.
It is rated for operation over temperature rage from -20oC to +85oC and voltage ranges from 3.0V to 20V.
Features
•
On-chip Hall sensor
•
3.0V to 20V operating voltage
•
Internal Temperature compensation
•
Special design providing logic race condition immunity, shorter switching time, and good switch reliability
•
300mA output sink current
•
Internal on-chip protection diode
•
SIP-4L Package
Applications
•
Dual-coil Brush-less DC Motor
•
Dual-coil Brush-less DC Fan
•
Revolution Counting
•
Speed Measurement
Pin Assignment
Name
AX277
H288
P/I/O
P
O
O
P
Pin #
1
2
3
4
Description
Power Supply Input
Output Pin
Output Pin
Ground
VCC
DO
DOB
1
2
3
4
GND
Typical Application Circuit
(Brush-Less DC Fan)
AX277
H288
Coil1
Coil2
1
+
VCC
-
2
3
4
C1
C2
H288
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS GROUP.
Block Diagram
Vcc
Spec. No. : IC200903
Issued Date : 2009.02.12
Revised Date :
Page No. : 2/6
Temperature
Compensation
Voltage
Regulator
Vout1
GND
Hall
Effect
Sensor
Differential
Amplifier
Hysteresis
Control
Output
Driver
Vout2
Logic Control
GND
Test Circuit
14V
H288
AX277
1
2
3
4
RL1=RL2=820Ω
CL1=CL2=20pF
RL1
Vout1
RL2
CL1
CL2
Vout2
Absolute Maximum Ratings
(Ta=25
o
C)
Characteristics
Supply Voltage
Output breakdown Voltage
Magnetic Flux Density
Output Zener Breakdown
Output ON Current (continuous)
Maximum Output Current
Operating Temperature Range
Storage Temperature Range
Package Power Dissipation
Maximum Junction Temperature
Symbol
V
CC
V
OUT(breakdown)
B
V
Z
I
C
I
CMAX
T
A
T
S
P
D
T
J
Values
20
35
Unlimited
28
300
1
-20 to +85
-65 to +150
500
175
V
mA
A
o
o
Unit
V
V
C
C
C
mW
o
H288
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS GROUP.
Electrical Characteristics
(T=+25
o
C, V
CC
=3V~20V)
Characteristic
Supply Voltage
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Falling Time
Symbol
V
CC
V
CE(sat)
Icex
Iccq
Tr
Tf
V
CC
=3V, I
L
=100mA
V
CC
=14V, I
L
=300mA
Vce=14V, V
CC
=14V
V
CC
=20V, Output Open
V
CC
=14V, R
L
=400Ω, C
L
=20pF
V
CC
=14V, R
L
=400Ω, C
L
=20pF
Test Conditions
Min.
3
-
-
-
-
-
-
Spec. No. : IC200903
Issued Date : 2009.02.12
Revised Date :
Page No. : 3/6
Typ.
-
200
300
-
10
1
0.2
Max.
20
-
600
2
18
5
1.2
Units
V
mV
uA
mA
uS
uS
Magnetic Characteristics
A Grade
Characteristic
Operate Point
Release Point
Hysteresis window
Symbol
Min.
Typ.
-
-
70
max.
Units
B
OP
B
rp
Bhy
-
-70
-
70
-
-
G
G
G
B Grade
Characteristic
Operate Point
Release Point
Hysteresis window
Symbol
Min.
Typ.
-
-
70
max.
Units
B
OP
B
rp
Bhy
-
-90
-
90
-
-
G
G
G
C Grade
Characteristic
Operate Point
Release Point
Hysteresis window
Symbol
Min.
Typ.
-
-
70
max.
Units
B
OP
B
rp
Bhy
-
-130
-
130
-
-
G
G
G
H288
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS GROUP.
H 2 8 8 H y s te re s is C h a ra c te ris tic s c u rv e
DO
o ff-sta te
DOB
Spec. No. : IC200903
Issued Date : 2009.02.12
Revised Date :
Page No. : 4/6
V cc
o ff-sta te
V cc
T u rn o ff
N
Characteristics Curve
Supply Current & Supply Voltage
16
14
12
10
8
6
4
2
0
2.8 3 3.5 3.6 4
5
6
7
8
9
10 12 14 16 18 20
Test Conditions:
V
CC
=2.8V~20V
Output Open, R
L
=∞
T
A
=25
o
C
(Refer to Test Circuit)
13.4
13.3
13.2
Vout
Bhy
T u rn o n
T u rn o n
Vout
Bhy
T u rn o ff
o n -s ta te
V sa t
S
o n -sta te
V sa t
N
B rp
0
Bop
B rp
0
B op
S
M a g n e tic F lu x D e n s ity (g a u s s )
M a g n e tic F lu x D e n s ity (g a u s s )
Supply Current & Temperature
Supply Current (mA)
..
.
Supply Current (mA)
..
.
13.1
13
12.9
12.8
12.7
12.6
12.5
12.4
0
Test Conditions:
V
CC
=20V
Output Open, R
L
=∞
(Refer to Test Circuit)
20
40
60
Supply Voltage (V)
Temperature ( C)
o
80
100
120
SIP-4L Power Dissipation & Temperature
600
550
Hysteresis & Temperature
80
70
60
Test Conditions:
V
CC
=14V, R
L
=400Ω
C
L
=20pF
(Refer to Test Circuit)
Power Dissipation (mW)
500
Hysteresis (G)
450
400
350
300
250
200
0
20
40
60
50
40
30
20
10
0
Temperature ( C)
o
80
100
120
0
20
40
60
Temperature ( C)
o
80
100
120
H288
HSMC Product Specification
HI-SINCERITY
MICROELECTRONICS GROUP.
Spec. No. : IC200903
Issued Date : 2009.02.12
Revised Date :
Page No. : 5/6
Brush-less DC Fan Output Current Curve
Icoil 1
180
Current (mA)
90
12V, 0.24A Brush-Less DC Fan
(Refer to Typical Application Circuit)
Test Conditions:
V
CC
=12V, C
1
=C
2
=2.2uF
R
coil1
=R
coil2
=40ohm
0
Icoil 2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Time (uS)
Brush-less DC Fan Output Voltage Curve
20
18
16
12V, 0.24A Brush-Less DC Fan
(Refer to Typical Application Circuit)
Output Voltage (V)
14
12
10
8
6
4
2
0
0
2
Test Conditions:
V
CC
=12V, C
1
=C
2
=2.2uF
R
coil1
=R
coil2
=40ohm
Vout 1
Vout 2
4
6
8
10
12
14
16
18
20
Time (mS)
H288
HSMC Product Specification
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