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Datasheet> All Categories > The sensor> Sensor/transducer> H654L-T94-K
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H654L-T94-K

Description
Sensor/Transducer
CategoryThe sensor    Sensor/transducer   
File Size185KB，5 Pages
ManufacturerUNISONIC TECHNOLOGIES CO.,LTD
Websitehttp://www.unisonic.com.tw/
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H654L-T94-K Overview

Sensor/Transducer

H654L-T94-K Parametric

Parameter NameAttribute value
MakerUNISONIC TECHNOLOGIES CO.,LTD
Reach Compliance Codecompliant

H654L-T94-K Preview

UNISONIC TECHNOLOGIES CO.,
H654
COMPLEMENTARY OUTPUT
HALL EFFECT LATCH
DESCRIPTION
The UTC
H654
is integrated Hall sensors with complementary
output drivers designed for electronic commutation of brushless DC
Fan. It composed of an on-chip Hall voltage generator, a differential
amplifier, Schmitt trigger, an open-collector output on a single chip.
Furthermore, an internal bandgap regulator allows temperature
compensated operations and a wide operating supply range. An
on-chip protection diode is implemented to prevent reverse power
fault.
When the magnetic flux density larger than threshold B
OP
, DO
will be turned on(low) and DOB be turned off(high). The output state
is held until the magnetic flux density is lower than B
RP
, and then DO
is reversal to turned off and DOB turned on.
LINEAR INTEGRATED CIRCUIT
1
TO-94
*Pb-free plating product number: H654L
FEATURES
* Operate from 3.5V ~ 20V supply voltage.
* On-chip Hall sensor with two different sensitivity and hysteresis
settings.
* High output sinking capability up to 300mA for driving large load.
* Lower current change rate reduces the peak output voltages during
switching.
* Build-in protecting diode for chip reversal power connecting.
PIN DESCRIPTION
PIN PIN
P/I/O
DESCRIPTION
NO. NAME
1
Vcc
P Positive Power Supply
2
DO
O Output Pin
3
DOB
O Output Pin
4
Vss
P Ground
ORDERING INFORMATION
Order Number
Normal
Lead free plating
H654-T94-K
H654L-T94-K
Package
TO-94
Packing
Bulk
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co.,
1
QW-R118-003,A
H654
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
1
V
CC
DO
2
REG.
Hall
Sensor
DOB
3
V
SS
4
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2
QW-R118-003,A
H654
ABSOLUTE MAXIMUM RATINGS
(Ta=25℃)
PARAMETER
Supply Voltage
Reverse V
CC
Polarity Voltage
Output OFF Voltage
Magnetic flux density
Output ON Current
Power Dissipation
Operating Temperature
Junction Temperature
Storage Temperature
Note 1: Output Zener protection voltage
Continuous
Hold
Peak (Start Up)
LINEAR INTEGRATED CIRCUIT
SYMBOL
V
CC
V
RCC
V
CE
B
I
C
P
D
T
OPR
T
J
T
STG
RATINGS
20
-35
50
Unlimited
0.3
0.4
0.7
500
0 ~ +70
+125
-40 ~ +150
UNIT
V
V
V
A
mW
℃
℃
℃
ELECTRICAL CHARACTERISTICS
(Ta =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
∆t
TEST CONDITIONS
V
CC
=3.5V, I
L
=100mA
V
CC
=14V, I
L
=300mA
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
3.5
0.3
<0.1
16
3.0
0.3
3.0
TYP
0.4
MAX
20
0.6
10
25
10
1.5
10
UNIT
V
V
V
µA
mA
µS
µS
µS
TYPICAL APPLICATION CIRCUIT
UTC H654
coil1
coil2
1
+
- Vcc
2 3
4
Brushless DC Fan
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3
QW-R118-003,A
H654
TEST CIRCUIT
14V
LINEAR INTEGRATED CIRCUIT
UTC H654
DO
R
L1
820Ω
R
L2
820Ω C
L1
20pF
C
L2
20pF
DOB
MAGNETIC CHARACTERISTICS
PARAMETR
Operate Point
Release Point
Hysteresis
SYMBOL
B
OP
B
RP
B
HYS
Ta= 25℃
MIN
MAX
100
-100
50
200
Ta= 0 ~ +70℃
MIN
MAX
100
-100
30
200
UNIT
G
G
G
HYSTERESIS CHARACTERISTICS
RP
OFF
Output Voltage in Volts
Output Voltage i n Volts
OFF
OP
ON
OP
RP
ON
-200
-100
0
100
200
-200
-100
0
100
200
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4
QW-R118-003,A
H654
PERFORMANCE CHARACTERISTICS
Ta(℃)
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
Power Dissipation Curve
600
500
P
D
(mW)
400
300
200
100
0
25
50
75
Ta (℃)
Typical Magnetic Switch Point VS.Supply Voltage
120
B
HYS
100
125
150
Flux Density (G)
80
B
OP
40
0
B
RP
-40
5
12
Supply Voltage (V)
Typical Supply Current versus Supply Voltage
20
24
Supply Current (mA)
16
14
12
10
8
6
4
2
0
0
Ta=25℃
Ta=80℃
Ta=20℃
5
10
Supply Voltage (V)
15
20
25
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
www.unisonic.com.tw
5
QW-R118-003,A
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