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ACS710KLATR View Datasheet(PDF) - Allegro MicroSystems

Part Name
Description
MFG CO.
'ACS710KLATR' PDF : 24 Pages View PDF
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ACS710
120 kHz Bandwidth, High-Voltage Isolation
Current Sensor with Integrated Overcurrent Detection
COMMON OPERATING CHARACTERISTICS: Valid at TA = –40°C to 125°C, VCC = 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
ELECTRICAL CHARACTERISTICS
Supply Voltage1
Nominal Supply Voltage
VCC
VCCN
3
5
Supply Current
Output Capacitance Load
Output Resistive Load
Magnetic Coupling from Device Conductor
to Hall Element
ICC
CLOAD
RLOAD
MCHALL
VIOUT open, ¯F¯ ¯A ¯U¯¯L¯ ¯T¯ pin high
VIOUT pin to GND
VIOUT pin to GND
Current flowing from IP+ to IP– pins
11
10
9.5
Internal Filter Resistance2
RF(INT)
1.7
Primary Conductor Resistance
RPRIMARY
ANALOG OUTPUT SIGNAL CHARACTERISTICS
TA = 25°C
1
Full Range Linearity3
Symmetry4
ELIN
ESYM
IP = ±IP0A
IP = ±IP0A
–0.75
99.1
±0.25
100
Bidirectional Quiescent Output
VOUT(QBI) IP = 0 A, TA = 25°C
VCC×0.5
Noise Density
IND
Input-referenced noise density; TA = 25°C,
CL = 4.7 nF
400
Noise
IN
TIMING PERFORMANCE CHARACTERISTICS
Input referenced noise at 120 kHz
Bandwidth; TA = 25°C,CL = 4.7 nF
170
VIOUT Signal Rise Time
TA = 25°C, Swing IP from 0 A to IP0A,
tr
no capacitor on FILTER pin, 100 pF from
3
VIOUT to GND
VIOUT Signal Propagation Time
tPROP
TA = 25°C, no capacitor on FILTER pin,
100 pF from VIOUT to GND
1
VIOUT Signal Response Time
TA = 25°C, Swing IP from 0 A to IP0A,
tRESPONSE no capacitor on FILTER pin, 100 pF from
4
VIOUT to GND
VIOUT Large Signal Bandwidth
–3 dB, Apply IP such that VIOUT = 1 Vpk-pk,
f3dB
no capacitor on FILTER pin, 100 pF from
120
VIOUT to GND
Power-On Time
OVERCURRENT CHARACTERISTICS
tPO
Output reaches 90% of steady-state level,
no capacitor on FILTER pin, TA = 25°C
35
Setting Voltage for Overcurrent Switchpoint5
VOC
VCC × 0.25
Signal Noise at Overcurrent Comparator Input
INCOMP
±1
Overcurrent Fault Switchpoint Error6,7
EOC
Switchpoint in VOC safe operating area;
assumes INCOMP = 0 A
±5
Overcurrent ¯F¯ ¯A ¯U¯¯L¯ ¯T¯ Pin Output Voltage
V ¯F¯ ¯A ¯U¯¯L¯ ¯T¯ 
1 mA sink current at ¯F¯ ¯A ¯U¯¯L¯ ¯T¯ pin
Fault Enable (FAULT_EN Pin) Input Low
Voltage Threshold
VIL
Fault Enable (FAULT_EN Pin) Input High
Voltage Threshold
VIH
0.8 × VCC
Fault Enable (FAULT_EN Pin) Input
Resistance
RFEI
1
Max. Units
5.5
V
V
14.5
mA
10
nF
G/A
kΩ
0.75
100.9
%
%
V
µA
/(Hz)
mArms
μs
μs
μs
kHz
μs
VCC × 0.4 V
A
%
0.4
V
0.1 × VCC V
V
MΩ
Continued on the next page…
Allegro MicroSystems, LLC
6
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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