ADE7761BARS-REF datasheet(5/24 Pages) AD

No. de pieza	ADE7761BARS-REF

Descripción Electrónicos	Energy Metering IC with On-Chip Fault and Missing Neutral Detection

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ADE7761B

Rev. 0 | Page 5 of 24

ABSOLUTE MAXIMUM RATINGS

TA = 25°C, unless otherwise noted.

Table 3.

Parameter

Rating

VDD to AGND

−0.3 V to +7 V

Analog Input Voltage to AGND

V1A, V1B, V1N, V2N, V2P, MISCAL

−6 V to +6 V

Reference Input Voltage to AGND

−0.3 V to VDD + 0.3 V

Digital Input Voltage to DGND

−0.3 V to VDD + 0.3 V

Digital Output Voltage to DGND

−0.3 V to VDD + 0.3 V

Operating Temperature Range

Industrial

−40°C to +85°C

Storage Temperature Range

−65°C to +150°C

Junction Temperature

150°C

20-Lead SSOP, Power Dissipation

450 mW

θJA Thermal Impedance

112°C/W

Lead Temperature, Soldering

Vapor Phase (60 sec)

215°C

Infrared (15 sec)

220°C

Stresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only; functional operation of the device at these or any

other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect

device reliability.

PERFORMANCE ISSUES THAT MAY AFFECT

BILLING ACCURACY

The ADE7761B provides pulse outputs, CF, F1, and F2, that are

intended to be used for the billing of active energy. Pulses are

generated at these outputs in two different situations.

Case 1

When the analog input V2P − V2N complies with the conditions

described in Figure 34, the CF, F1, and F2 frequencies are

proportional to active power and can be used to bill active energy.

Case 2

When the analog input V2P − V2N does not comply with the

conditions described in Figure 34, the ADE7761B does not

measure active energy but a quantity proportional to kiloampere-

hours (kAh). This quantity is used to generate pulses on the

same CF, F1, and F2. This situation is indicated when the

FAULT pin is high.

Analog Devices, Inc., cautions users of the ADE7761B about the

following:

• Billing active energy in Case 1 is consistent with the under-

standing of the quantity represented by pulses on the CF, F1,

and F2 outputs (watthour).

• Billing active energy while the ADE7761B is in Case 2 must

be decided knowing that the entity measured by the ADE7761B

in this case is ampere-hour and not watthour. Users should

be aware of this limitation and decide if the ADE7761B is

appropriate for their application.

ESD CAUTION

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