ACS709(2013) 查看數據表（PDF） - Allegro MicroSystems

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ACS709
(Rev.:2013)

High Bandwidth, Fast Fault Response Current Sensor IC In Thermally Enhanced Package

Allegro MicroSystems 

ACS709

High Bandwidth, Fast Fault Response Current Sensor IC

In Thermally Enhanced Package

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

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

Selection Guide

Part Number

IP(LIN)

(A)

ACS709LLFTR-35BB-T

75

ACS709LLFTR-20BB-T

37.5

*Contact Allegro for packing options.

Sens

(Typ at VCC = 5 V)

(mV/A)

28

56

TA

(°C)

Packing*

–40 to 150 Tape and Reel, 2500 pieces per reel

Absolute Maximum Ratings

Characteristic

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 Dielectric Insulation Voltage

Rated Continuous Voltage on Primary Leads

(IP+ and IP–)

Output Current Source

Output Current Sink

Operating Ambient Temperature

Junction Temperature

Storage Temperature

Symbol

VCC

VFILTER

VIOUT

VOC

V ¯F¯ ¯A¯U¯¯L¯ ¯T¯

VFAULTEN

VZCR

Notes

Rating

8

8

32

8

8

8

8

Units

V

V

V

V

V

V

V

VRdcx

–0.5

V

VISO

VWORKING

IIOUT(Source)

IIOUT(Sink)

TA

TJ(max)

Tstg

60 Hz AC, 1 minute at TA = 25°C

For single protection according to UL 1577 standard; for

higher continuous voltage ratings, please contact Allegro

Range L

2100

277

3

1

–40 to 150

165

–65 to 170

VAC

VAC

mA

mA

°C

°C

°C

Allegro MicroSystems, LLC

2

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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