ACS711KLCTR-25AB-T Allegro Microsystems Inc, ACS711KLCTR-25AB-T Datasheet - Page 4

• Manufacturer Part Number: ACS711KLCTR-25AB-T
• Description: CURRENT SENSOR W/OVERCURRENT OUTPUT
• Manufacturer: Allegro Microsystems Inc
• Series: -r

Specifications of ACS711KLCTR-25AB-T

• Current - Sensing: ±25A
• Accuracy: ±5%
• Sensitivity: 55mV/A
• Current - Supply: 4mA
• Sensor Type: Hall Effect
• Voltage - Supply: 3 V ~ 5.5 V
• Output: Analog, Ratiometric
• Frequency: 100kHz
• Response Time: 100µs
• Polarization: Bidirectional
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ACS711
COMMON OPERATING CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Supply Voltage
Supply Current
Output Capacitance Load
Output Resistive Load
Primary Conductor
Resistance
VIOUT Rise Time
Propagation Delay Time
Response Time
Internal Bandwidth
Nonlinearity
Symmetry
VIOUT Saturation Voltages
Quiescent Output Voltage
Power-On Time
¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ Pin Characteristics
¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ Operating Point
¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ Output Pullup
Resistor
¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ Output Voltage
¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ Response Time
V
Fault Reset
V
Fault Reset
1
Voltage and Sensitivity level of the device in proportion to the applied V
additional output error will result when V
should contact their local Allegro sales representative regarding expected device accuracy levels under these bias conditions.
2
3
reset, V
Devices are programmed for maximum accuracy at 3.3 V V
Calculated using the formula BW
After the ¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ pin is latched low, the only way to reset it is through a power-off and power-on cycle on the VCC pin. To get a guaranteed fault
CC
CC
Off Voltage Level for
Off Duration for
Characteristic
CC
must stay below V
3
3
1
2
CCFR
V
t
RESPONSE
Symbol
IOUT(Q)
I
C
R
V
I
t
t
E
t
for a period greater than t
V
FAULT
FAULT
= 0.35 / t
PROP
BW
E
V
V
R
V
CCFR
V
I
R
t
CCFR
LOAD
LOAD
SYM
CC
PO
IOH
t
LIN
IOL
OH
CC
PU
OL
IP
r
I
CC
varies from the 3.3 V V
Hall Effect Linear Current Sensor with Overcurrent
r
.
V
VIOUT to GND
VIOUT to GND
T
I
I
I
–3 dB, T
Over full range of I
Apply full scale I
I
Output reaches 90% of steady-state level, T
20 A present on primary conductor
R
Measured from | I
P
P
P
P
A
CC
PU
= I
= I
= I
= 0 A, T
= 25°C
= 3.3 V, output open
= 1 kΩ
PMAX
P
P
(max), T
(max), T
Fault Output for < 100 V Isolation Applications
A
, T
= 25°C
A
= 25°C
A
over full range of T
= 25°C, COUT = open
A
A
CCFR
CC
= 25°C, COUT = open
= 25°C, COUT = open
P
P
levels. The device contains ratiometry circuits that accurately alter the 0 A Output
P
| > | I
before settling to the normal operation voltage (3 to 5.5 V).
CC
Test Conditions
level. Customers that plan to operate the device from a 5 V regulated supply
FAULT
CC
level. However, as a result of minor nonlinearities in the ratiometry circuit
| to V
A
and V
FAULT
CC
≤ V
= 3.3 V, unless otherwise specified
A
OL
= 25°C,
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
V
Min.
100
0.3
15
CC
3
–
–
–
–
–
–
–
–
–
–
–
–
–
1
–
–
–
–
–
± 1 x I
V
V
Typ.
CC
100
100
3.3
1.2
3.5
1.2
4.6
0.3
0.3
1.3
±1
35
CC
4
–
–
–
–
–
–
–
/ 2
–
P
Max.
200
5.5
5.5
0.3
1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Units
kHz
mΩ
mV
mA
nF
kΩ
kΩ
μs
μs
μs
μs
μs
μs
%
%
V
V
V
V
A
V
V
4