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ACS781LLRTR-050B-T Datasheet(PDF) 5 Page - Allegro MicroSystems

Part # ACS781LLRTR-050B-T
Description  Core-less, micro-sized, 100 A continuous current package
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

ACS781LLRTR-050B-T Datasheet(HTML) 5 Page - Allegro MicroSystems

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High-Precision Linear Hall-Effect-Based
Current Sensor IC With 200 µΩ Current Conductor
ACS781xLR
5
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
VCC
3
3.3
3.6
V
Supply Current
ICC
Output open
11
15
mA
Power-On Time
tPO
TA = 25°C, CBYPASS = Open, CL = 1 nF
180
µs
Temperature Compensation
Time
tTC
CBYPASS = Open, CL= 1 nF
50
µs
Power-On Reset Voltage
VPORH
TA = 25°C, VCC rising
2.85
V
VPORL
TA = 25°C, VCC falling
2.6
V
Power-On Reset Hysteresis
VPORHYST
250
mV
Power-On Reset Release Time
tPORR
TA = 25°C, VCC rising
150
µs
Power-On Reset Disable Time
tPORD
TA = 25°C, CL = 1 nF
14
µs
Supply Zener Clamp Voltage
Vz
TA = 25°C, ICC = 30 mA
6.5
7.5
V
Internal Bandwidth
BWi
Small signal –3 dB, CL = 1 nF, TA = 25°C
120
kHz
Chopping Frequency
fC
TA = 25°C
500
kHz
Oscillator Frequency
fOSC
TA = 25°C
8
MHz
OUTPUT CHARACTERISTICS
Propagation Delay Time
tpd
TA = 25°C, CL = 1 nF
2.2
µs
Rise Time
tr
TA = 25°C, CL = 1 nF
3
µs
Response Time
tRESPONSE
TA = 25°C, CL = 1 nF
3.6
µs
Output Saturation Voltage
VSAT(HIGH)
TA = 25°C, RLOAD = 10 kΩ to GND
3.1
V
VSAT(LOW)
TA = 25°C, RLOAD = 10 kΩ to VCC
200
mV
DC Output Resistance
ROUT
RL = 4.7 kΩ from VOUT to GND, VOUT = VCC/2
<1
Ω
Output Load Resistance
RL(PULLUP)
VOUT to VCC
4.7
RL(PULLDWN)
VOUT to GND
4.7
Output Load Capacitance
CL
VOUT to GND
1
10
nF
Primary Conductor Resistance
RPRIMARY
TA = 25°C
180
µΩ
Quiescent Output Voltage
VOUT(QBI)
IP = 0 A, TA = 25°C
VCC/2
V
VOUT(QU)
Unidirectional variant, IP = 0 A, TA = 25°C
VCC× 0.1
V
Ratiometry Quiescent Output
Voltage Error
RatERRVOUT(Q) Through supply voltage range (VCC = 3.3 V)
0
%
Ratiometry Sensitivity Error
RatERRSens
Through supply voltage range (VCC = 3.3 V)
< ±0.5
%
Common-Mode Magnetic Field
Rejection
CMFR
Magnetic field perpendicular to Hall plates
–35
dB
COMMON OPERATING CHARACTERISTICS valid at TOP = –40°C to 150°C and VCC = 3.3 V, unless otherwise specified


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