ACS704ELC-005 データシートの表示（PDF） - Allegro MicroSystems

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ACS704ELC-005

Fully Integrated, Hall Effect-Based Linear Current Sensor with Voltage Isolation and a Low-Resistance Current Conductor

Allegro MicroSystems 

ACS706ELC-20A

OPERATING CHARACTERISTICS

Characteristic

Symbol

Test Conditions

ELECTRICAL CHARACTERISTICS, over operating ambient temperature range unless otherwise specified

Optimized Accuracy Range

IP

Linear Sensing Range

IR

Supply Voltage

VCC

Supply Current

ICC

VCC = 5.0 V, output open

Output Resistance

ROUT IOUT = 1.2 mA

Output Capacitance Load

CLOAD VOUT to GND

Output Resistive Load

RLOAD VOUT to GND

Primary Conductor Resistance RPRIMARY TA = 25°C

RMS Isolation Voltage

VISORMS Pins 1-4 and 5-8; 60 Hz, 1 minute

DC Isolation Voltage

VISODC

PERFORMANCE CHARACTERISTICS, over operating ambient temperature range unless otherwise specified

Propagation Time

Response Time

Rise Time

Frequency Bandwidth

Sensitivity

Noise

Linearity

Symmetry

Zero Current Output Voltage

Electrical Offset Voltage

tPROP

tRESPONSE

tr

f

Sens

VNOISE

ELIN

ESYM

VOUT(Q)

VOE

IP = ±20 A, TA = 25°C

IP = ±20 A, TA = 25°C

IP = ±20 A, TA = 25°C

–3 dB, TA = 25°C; IP is 10 A peak-to-peak; no external filter

Over full range of IP , IP applied for 5 ms; TA = 25°C

Over full range of IP , IP applied for 5 ms

Peak-to-peak, TA = 25°C, no external filter

Root Mean Square, TA = 25°C, no external filter

Over full range of IP , IP applied for 5 ms

Over full range of IP , IP applied for 5 ms

IP = 0 A, TA = 25°C

IP = 0 A, TA = 25°C

IP = 0 A

Magnetic Offset Error

Total Output Error1

IERROM

ETOT

IP = 0 A, after excursion of 20 A

IP = ±20 A, IP applied for 5 ms; TA = 25°C

IP = ±20 A, IP applied for 5 ms

Min.

–20

–20

4.5

5

–

–

4.7

–

1600

–

–

–

–

–

–

94

–

–

–

98

–

–15

–50

–

–

–

Typ. Max.

–

20

–

20

5.0

5.5

8

10

1

2

–

10

–

–

1.5

–

2500

–

5000

–

3.15

6

6.56

50

100

–

70

12.5

±1

100

VCC / 2

–

–

±0.01

±1.5

–

–

–

–

–

–

106

–

–

±3.5

102

–

15

50

±0.05

–

±8.4

Units

A

A

V

mA

Ω

nF

kΩ

mΩ

V

V

μs

μs

μs

kHz

mV/A

mV/A

mV

mV

%

%

V

mV

mV

A

%

%

THERMAL CHARACTERISTICS2,3, TA = –40°C to 125°C, VCC = 5 V unless otherwise specified

–

Value

–

Units

Junction-to-Lead Thermal

Resistance

Mounted on the Allegro ASEK 70x evaluation board; additional

RθJL information about reference boards and tests is available on the

–

5

–

°C/W

Allegro Web site

Junction-to-Ambient Thermal

Resistance

RθJA

Mounted on the Allegro ASEK 70x evaluation board; additional

information about reference boards and tests is available on the

Allegro Web site

–

41

–

°C/W

1Percentage of IP, with IP = 20 A. Output filtered. Up to a 2.0% shift in ETOT may be observed at end-of-life for this device.

2 The Allegro evaluation board has 1500 mm2 of 2 oz. copper on each side, connected to pins 1 and 2, and to pins 3 and 4, with thermal vias connect-

ing the layers. Performance values include the power consumed by the PWB. Further details on the board are available from the ACS704 Frequently

Asked Questions document on our website. Further information about board design and thermal performance also can be found on pages 16 and 17 of

this datasheet.

3RθJA values shown in this table are typical values, measured on the Allegro evaluation board. The actual thermal performance depends on the board

design, the airflow in the system, and thermal interactions between the sensor and surrounding components through the PCB and the ambient air. To

improve thermal performance, see our applications material on the Allegro Web site.

ACS706ELC20A-DS, Rev. 2

3

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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