ACS709LLFTR-20BB-T Allegro Microsystems Inc, ACS709LLFTR-20BB-T Datasheet - Page 2

• Manufacturer Part Number: ACS709LLFTR-20BB-T
• Description: IC, CURRENT SENSOR, 11mA, QSOP-24
• Manufacturer: Allegro Microsystems Inc
• Series: -r

Specifications of ACS709LLFTR-20BB-T

• Quiescent Current: 11mA
• Bandwidth: 120kHz
• Sensor Case Style: QSOP
• No. Of Pins: 24
• Supply Voltage Range: 3V To 5.5V
• Operating Temperature Range: -40°C To +150°C
• Polarization: Unipolar
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Mounting: Surface Mount
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Current - Sensing: ±37.5A
• Accuracy: ±2.5%
• Sensitivity: 56mV/A
• Current - Supply: 11mA
• Sensor Type: Hall Effect
• Voltage - Supply: 3 V ~ 5.5 V
• Output: 2.5V
• Frequency: 120kHz
• Response Time: 4µs
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 24-SSOP (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ACS709
Description (continued)
the open drain Overcurrent Fault pin will transition to a logic low
state. Factory programming of the linear Hall sensor IC inside of
the ACS709 results in exceptional accuracy in both analog and
digital output signals.
The internal resistance of the copper path used for current sensing is
typically 1.1 mΩ, for low power loss. Also, the current conduction
path is electrically isolated from the low voltage device inputs and
Absolute Maximum Ratings
Rated Dielectric Insulation Voltage
Selection Guide
ACS709LLFTR-35BB-T
ACS709LLFTR-20BB-T
*Contact Allegro for packing options.
Supply Voltage
Filter Pin
Analog Output Pin
Overcurrent Input Pin
Overcurrent ¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ Pin
Fault Enable (FAULT_EN) Pin
Voltage Reference Output Pin
DC Reverse Voltage: Supply Voltage, Filter, Analog
Output, Overcurrent Input, Overcurrent Fault, Fault
Enable, and Voltage Reference Output Pins
Rated Continuous Voltage on Primary Leads
(IP+ and IP–)
Output Current Source
Output Current Sink
Operating Ambient Temperature
Junction Temperature
Storage Temperature
Part Number
Characteristic
I
37.5
P(LIN)
(A)
75
High Bandwidth, Fast Fault Response Current Sensor IC
(Typ at V
(mV/A)
Sens
28
56
I
CC
V
IOUT(Source)
V
I
Symbol
T
IOUT(Sink)
V
WORKING
V
FAULTEN
V
V
V
J
V
V
V
= 5 V)
FILTER
¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯
(max)
T
IOUT
Rdcx
T
ZCR
ISO
CC
OC
stg
A
60 Hz AC, 1 minute at T
For single protection according to UL 1577 standard; for
higher continuous voltage ratings, please contact Allegro
Range L
–40 to 150
(°C)
T
A
outputs. This allows the ACS709 family of sensor ICs to be used
in applications requiring electrical isolation, without the use of
opto-isolators or other costly isolation techniques.
Applications include:
• Motor control and protection
• Load management and overcurrent detection
• Power conversion and battery monitoring / UPS systems
Tape and Reel, 2500 pieces per reel
In Thermally Enhanced Package
A
= 25°C
Notes
Packing*
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–40 to 150
–65 to 170
Rating
2100
–0.5
277
165
32
8
8
8
8
8
8
3
1
Units
VAC
VAC
mA
mA
°C
°C
°C
V
V
V
V
V
V
V
V
2