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Unisonic Technologies |
UTC U652 LINEAR INTEGRATED CIRCUIT
SINGLE OUTPUT HALL EFFECT
LATCH
GENERAL DESCRIPTION
The UTC U652 is a Integrated Hall sensor with latch
designed for electronic commutation of brushless DC
motor applications. The device includes an on-chip
Hall voltage generator for magnetic sensing, a
comparator that amplifies the Hall voltage, and a
Schmitt trigger to provide switching hysteresis for
noise rejection, and open-collector output. An internal
bandgap regulator is used to provide temperature
compensated supply voltage for internal circuits and
allows a wide operating supply range.
FEATURES
*3.5V to 20V operation
*On-chip Hall sensor with two different sensitivity and
hysteresis settings.
*Internal bandgap regulator allows temperature
compensated operations and a wide operating
voltage range.
*Open-Collector 25mA Output.
*Reverse Polarity Protection.
BLOCK DIAGRAM
1 Vcc
1
TO92S
1: Vcc 2: GND 3: OUTPUT
REG.
Hall
Sensor
3 OUTPUT
2 GROUND
PIN DESCRIPTIONS
NAME
P/I/O
Vcc P
Vss P
DO O
PIN NO.
1
2
3
DESCRIPTION
Positive Power Supply
Ground
OUTPUT Pin
UTC UNISONIC TECHNOLOGIES CO. LTD
1
QW-R118-002,A
UTC U652 LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
CHARACTERISTIC
SYMBOL
Supply Voltage
Vcc
Reverse Vcc Polarity Voltage
Magnetic flux density
VRCC
B
Output OFF Voltage
Vce
Output ON Current
Ic
Operating Temperature Range
Ta
Storage Temperature Range
Ts
Package Power Dissipation
Pd
VALUE
20
-20
Unlimited
30
30
0 ~ 70
-65 ~ 150
400
UNIT
V
V
V
mA
°C
°C
mW
ELECTRICAL CHARACTERISTICS( Ta=25°C,Vcc=3.5V to 20V )
CHARACTERISTIC
SYMBOL
TEST CONDITION
Operating Supply Voltage
Vcc
Output Saturation Voltage
Vce(sat)
Vcc=14V,Ic=20mA
Output Leakage Current
Icex
Vce=14V,Vcc=14V
Supply Current
Icc Vcc=20V, Output Open
Output Rise Time
tr Vcc=14V,RL=820Ω,CL=20pF
Output Falling Time
tf Vcc=14V,RL=820Ω,CL=20pF
MIN TYP. MAX UNIT
8 20 V
300 700 mV
<0.1 10
uA
5 10 mA
0.3 1.5 us
0.3 1.5 us
MAGNETIC CHARACTERISTICS
CHARACTERISTIC
SYMBOL
Ta=25°C
Min Max
Operate Point
Bop 10
120
Release Point
Brp -120
-10
Hysteresis
Bhys
20
240
CLASSIFICATION OF OPERATING POINT
RANK
A
Bop 10 70
Brp -10 -70
Bhys
20 140
Ta=0 ~ 70°C
Min Max
5 120
-120
-5
10 240
UNIT
G
G
G
B
60
-60
120
120
-120
240
UTC UNISONIC TECHNOLOGIES CO. LTD
2
QW-R118-002,A
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