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UNISONIC TECHNOLOGIES CO., LTD
H1277
LINEAR INTEGRATED CIRCUIT
HIGH SENSITIVITY HALL
EFFECT SENSOR IC WITH
FG OUTPUT
„ DESCRIPTION
The UTC H1277 is a semiconducting integrated Hall
Effect Sensor IC.
It is just like all the hall sensitive Hall Effect Sensors
designed to work in the situations which the accurate
track is extremely small and the changes in magnetic flux
density-changes are generally too small to be operated.
Besides those features shared in all Hall Effect
Sensors, H1277 can apply to various kinds of
applications, such as contact-less switches, motion
detectors, gear tooth sensors, proximity detectors, and
electric communication of DC brushless motors, etc.
„ FEATURES
* Hall Sensor On-Chip
* Output Zener Diodes to Clamp the Peak Output
Voltage
* Frequency Generation Output
* High Output Sinking Capability (nearly to 400mA)
* High Sensitivity Hall Effect Sensor IC: ±65G
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
H1277L-G04-K
H1277G-G04-K
Package
SIP-4
Packing
Bulk
„ PIN DESCRIPTION
PIN NO.
1
2
3
4
PIN NAME
FG
DO
DOB
GND
DESCRIPTION
Open collector pin: for rotation frequency detection
Coil output or power input
Coil output or Power input
IC ground
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Copyright © 2011 Unisonic Technologies Co., Ltd
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H1277
„ BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
„ SENSOR LOCATIONS
UNISONIC TECHNOLOGIES CO., LTD
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H1277
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Ta=25°С,unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNITS
Supply Voltage (DO/DOB Voltage)
VCC 25 V
FG Pin Off Voltage
FG Sink Current
VOFF
IFG
25 V
10 mA
Output Current
IOUT 500 mA
Power Dissipation
Junction Temperature
PD 500 mW
TJ
-20 ~ +150
°С
Storage Temperature
TSTG
-65 ~ +150
°С
Note: 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.
„ RECOMMENDED OPERATING CONDITIONS (Ta=25°С,unless otherwise specified)
PARAMETER
Supply voltage (DO/DOB Voltage)
Maximum FG Pin Off Voltage
Maximum Output Sink Current
Maximum FG Sink Current
Junction Temperature
Operating Temperature
SYMBOL
VCC
VOFF
IOUT
IFG
TJ
TOPR
RATINGS
3.7~20
20
400
5
-20~ +125
-20 ~ +85
UNITS
V
V
mA
mA
°С
°С
„ ELECTRICAL CHARACTERISTICS (Ta = 25°С,VCC =12V, unless otherwise specified)
PARAMETER
Output Saturation Voltage
Supply Current
FG OFF Leakage Current
FG ON Saturation Voltage
Clamp Output Voltage
Output Rise Time
Output Fall Time
Propagation Delay Time
SYMBOL
VO(SAT)
ICC
IOFF
VON
VCLAMP
tR
tF
tD
TESE CONDITIONS
IOUT = 400mA
IFG = 5mA
RL = 200, CL = 10pF
MIN TYP MAX UNITS
700 900 mV
11 25 mA
1 μA
0.2 0.4
V
33 V
0.4 μS
0.1 μS
2 μS
„ MAGNETIC CHARACTERISTICS (Ta = 25°С,VCC =12V unless otherwise specified)
PARAMETER
Magnetic Operate Points
Magnetic Release Points
SYMBOL
Bop
Brp
TEST CONDITIONS
MIN TYP MAX UNITS
10 65 Gauss
-65 -10 Gauss
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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