UNISONIC TECHNOLOGIES CO., LTD
UH276
COMPLEMENTARY OUTPUTS
HALL EFFECT LATCH IC
DESCRIPTION
The UTC
UH276
is a Latch-Type Hall Effect sensor with built-in
complementary output drivers. It’s designed with internal temperature
compensation circuit and built-in protection diode prevent reverse
power fault. The application is aimed for brush-less DC Fan
The
UH276
Outputs operate as the Hysteresis Characteristics.
The Outputs alternately ON and OFF when either the magnetic flux
density larger than threshold B
OP
or the magnetic flux density lower
than B
RP
.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Widen Power Supply range from
3V
~ 20V.
* On-chip Hall sensor with excellent hysteresis.
* Open Collector outputs had the sinking capability up to 400mA.
* Output Clamping Diodes reduce the peak output voltages during
switching.
* Build-in reverse protection diode.
ORDERING INFORMATION
Ordering Number
Lead Free
UH276L-G04-K
Halogen Free
UH276G-G04-K
Package
SIP-4
Packing
Bulk
PIN DESCRIPTION
PIN NO. PIN NAME
1
V
CC
2
DO
3
DOB
4
V
SS
P/I/O
P
O
O
P
DESCRIPTION
Positive Power Supply
Output Pin
Output Pin
Ground
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QW-R118-013.B
UH276
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
SENSOR LOCATIONS
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QW-R118-013.B
UH276
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(T
A
=25℃, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
V
CC
20
V
Reverse V
CC
Polarity Voltage
V
RCC
-25
V
Output OFF Voltage
V
CE
32
V
Magnetic flux density
B
Unlimited
Continuous
0.4
Output ON Current
Hold
I
C
0.5
A
Peak (Start Up)
0.7
Power Dissipation
P
D
500
mW
Junction Temperature
T
J
+150
℃
Operating Temperature
T
OPR
-20 ~ +85
℃
Storage Temperature
T
STG
-65 ~ +150
℃
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Output Zener protection voltage
ELECTRICAL CHARACTERISTICS
(T
A
=25℃, unless otherwise specified)
PARAMETER
Low Supply Voltage
Supply Voltage
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Falling Time
Switch Time Differential
SYMBOL
V
CE
V
CC
V
CE(SAT)
I
CEX
I
CC
t
R
t
F
Δt
TEST CONDITIONS
V
CC
=3.5V, I
L
=100mA
V
CC
=14V, I
L
=400mA
V
CE
=14V, V
CC
=14V
V
CC
=20V, Output Open
V
CC
=14V, R
L
=820Ω, C
L
=20pF
V
CC
=14V, R
L
=820Ω, C
L
=20pF
V
CC
=14V, R
L
=820Ω, C
L
=20pF
MIN
3
0.6
<0.1
15
0.3
0.04
0.3
TYP
MAX
0.6
20
0.9
10
25
3
1
3
UNIT
V
V
V
μA
mA
μS
μS
μS
MAGNETIC CHARACTERISTICS
A grade
PARAMETR
Operate Point
Release Point
Hysteresis
SYMBOL
B
OP
B
RP
B
HYS
MIN
10
-50
20
TYP
MAX
50
-10
100
UNIT
G
G
G
B grade
PARAMETR
Operate Point
Release Point
Hysteresis
SYMBOL
B
OP
B
RP
B
HYS
MIN
5
-70
20
TYP
MAX
70
-5
140
UNIT
G
G
G
C grade
PARAMETR
Operate Point
Release Point
Hysteresis
SYMBOL
B
OP
B
RP
B
HYS
MIN
-100
20
TYP
MAX
100
200
UNIT
G
G
G
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QW-R118-013.B
UH276
CHYSTERESIS CHARACTERISTICS
LINEAR INTEGRATED CIRCUIT
Output Voltage in Volts
DOB
OFF
B
HY
Output Voltage in Volts
OFF
DO
B
HY
ON
Brp
0
Bop
DOB
DO
Brp
0
Bop
ON
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
TYPICAL APPLICATION CIRCUIT
TEST CIRCUIT
14V
UH276
DO
R
L1
820Ω
R
L2
820Ω C
L1
20pF
C
L2
20pF
DOB
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UH276
PERFORMANCE CHARACTERISTICS
T
A
(℃)
P
D
(mW)
25
550
50
525
60
515
70
505
80
485
85
475
90
465
LINEAR INTEGRATED CIRCUIT
95
455
100
445
105
425
110
405
115
385
120
365
Typical Magnetic Switch Point VS.Supply Voltage
75
B
HYS
50
B
OP
25
0
B
RP
-25
5
12
Supply Voltage (V)
20
24
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
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Supply Current (mA)
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QW-R118-013.B
Microcontroller MCU
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