ACS714 データシートの表示（PDF） - Allegro MicroSystems

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ACS714

Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor

Allegro MicroSystems 

ACS714

Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor IC

with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor

x20A PERFORMANCE CHARACTERISTICS over Range E: TA = –40°C to 85°C1, CF = 1 nF, and VCC = 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min. Typ. Max. Units

Optimized Accuracy Range

IP

–20

–

20

A

Sensitivity

Sens Over full range of IP, TA = 25°C

96

100

104 mV/A

Noise

VNOISE(PP)

Peak-to-peak, TA = 25°C, 100 mV/A programmed Sensitivity,

CF = 47 nF, COUT = open, 2 kHz bandwidth

–

11

–

mV

Zero Current Output Slope

∆VOUT(Q)

TA = –40°C to 25°C

TA = 25°C to 150°C

–

–0.34

–

mV/°C

–

–0.07

–

mV/°C

Sensitivity Slope

∆Sens

TA = –40°C to 25°C

TA = 25°C to 150°C

–

0.017

– mV/A/°C

–

–0.004

– mV/A/°C

Electrical Output Voltage

VOE

IP = 0 A

–30

–

30

mV

Total Output Error2

ETOT IP = ±20 A, TA = 25°C

–

±1.5

–

%

1Device may be operated at higher primary current levels, IP, and ambient temperatures, TA, provided that the Maximum Junction Temperature,

TJ(max), is not exceeded.

2Percentage of IP, with IP = 20 A. Output filtered.

x20A PERFORMANCE CHARACTERISTICS over Range L: TA = –40°C to 150°C1, CF = 1 nF, and VCC = 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min. Typ. Max. Units

Optimized Accuracy Range

IP

–20

–

20

A

Sensitivity

Sens

Over full range of IP, TA = 25°C

Over full range of IP, TA = –40°C to 150°C

–

100

–

mV/A

94

–

104 mV/A

Noise

VNOISE(PP)

Peak-to-peak, TA = 25°C, 100 mV/A programmed Sensitivity,

CF = 47 nF, COUT = out, 2 kHz bandwidth

–

11

–

mV

Zero Current Output Slope

∆VOUT(Q)

TA = –40°C to 25°C

TA = 25°C to 150°C

–

–0.34

–

mV/°C

–

–0.07

–

mV/°C

Sensitivity Slope

∆Sens

TA = –40°C to 25°C

TA = 25°C to 150°C

–

0.017

– mV/A/°C

–

–0.004

– mV/A/°C

Electrical Output Voltage

VOE

IP = 0 A

–40

–

40

mV

Total Output Error2

ETOT

IP = ±20 A, TA = 25°C

IP = ±20 A, TA = –40°C to 150°C

–

±1.5

–

%

–5

–

5

%

1Device may be operated at higher primary current levels, IP, and ambient temperatures, TA, provided that the Maximum Junction Temperature,

TJ(max), is not exceeded.

2Percentage of IP, with IP = 20 A. Output filtered.

Allegro MicroSystems, LLC

6

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

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