Datasheet > ACS37800KMACTR-0303BI2C

ACS37800KMACTR-0303BI2C

更新时间： 2024-02-17 16:04:47

品牌	Logo	应用领域
急速微 - ALLEGRO		监控
页数	文件大小	规格书
41页	3451K
描述
Isolated, Digital Output, Power Monitoring IC

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ACS37800

Isolated, Digital Output, Power Monitoring IC

with Zero-Crossing Detection, Overcurrent and Overvoltage Flagging

DESCRIPTION

FEATURES AND BENEFITS

• Accurate power monitoring for AC and DC applications

• UL 60950-1 (ed. 2) and UL 62368-1 (ed. 1) certified for

reinforced isolation up to 517 V_RMSin a single package

• Accurate measurements of active, reactive, and apparent

power, as well as power factor

• Separate RMS and instantaneous measurements for both

voltage and current channels

• Two programmable averaging blocks

TheAllegroACS37800powermonitoringICgreatlysimplifies

the addition of power monitoring to manyAC or DC powered

systems. The sensor may be powered from the same supply

as the system’s MCU, eliminating the need for multiple

power supplies. The device’s construction includes a copper

conduction path that generates a magnetic field proportional

to applied current. The magnetic field is sensed differentially

to reject errors introduced by common mode fields.

• 0.85 mΩ primary conductor resistance for low power loss

and high inrush current withstand capability

• Compatible with floating and non-floating GND

• Dedicated voltage or current zero crossing pin

• Fast, user-programmable overcurrent fault pin (5 µs typ.)

• User-programmable undervoltage and overvoltage RMS

thresholds

• 1 kHz bandwidth

• Current sensing range up to 90 A

• Options for I²C or SPI digital interface protocols

Allegro’s Hall-effect-based, galvanically isolated current

sensing technology achieves reinforced isolation ratings

(4800 V_RMS) in a small PCB footprint. These features enable

isolated current sensing without expensive Rogowski coils,

oversizedcurrenttransformers,isolatedoperationalamplifiers,

or the power loss of shunt resistors.

The ACS37800 power monitoring IC offers key power

measurement parameters that can easily be accessed through

its SPI or I²C digital protocol interfaces. Dedicated and

configurable I/O pins for voltage/current zero crossing,

undervoltage and overvoltage reporting, and fast overcurrent

fault detection are available in I²C mode. User configuration

of the IC is available through on-chip EEPROM.

PACKAGE

16-pin SOICW (suffix MA)

The ACS37800 is provided in a small low-profile surface

mountSOIC16wide-bodypackage,islead(Pb)free,andisfully

calibrated prior to shipment from theAllegro factory. Customer

calibration can further increase accuracy in application.

Not to scale

REINFORCED

ISOLATION

N (L)

L (N)

1 MΩ 1 MΩ

MCU

R_SENSE

1 MΩ 1 MΩ

GND

VCC

VINP

VINN

IP+ ACS37800

I²C

Only

IP+

IP-

R_PULLUP

GND

To User

VCC

I_P

R_PULLUP

SDA / MISO

SCL / SCLK

DIO_0 / MOSI

DIO_1 / CS

CB Certiﬁcate Number:

US-32210-M1-UL

US-36315-UL

Linear

Regulator

Single Output

Isolated Power

Supply

(Flyꢀack, etc.)

Figure 1: Typical Application

ACS37800-DS

MCO-0001004

November 30, 2020

12 3 4 5 6 7...41

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ACS37800KMACTR-0903BI2C	ALLEGRO	获取价格	Isolated, Digital Output, Power Monitoring IC
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