ADE7762ARWZ Analog Devices Inc, ADE7762ARWZ Datasheet - Page 17

• Manufacturer Part Number: ADE7762ARWZ
• Description: IC, POLYPHASE ENERGY METERING, SOIC-28
• Manufacturer: Analog Devices Inc

Specifications of ADE7762ARWZ

• Ic Function: Polyphase Energy Metering IC With Phase Drop Indication
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SOIC
• No. Of Pins: 28
• Input Impedance: 140 KOhm
• Measurement Error: 0.1%
• Voltage - I/o High: 2.4V
• Voltage - I/o Low: 0.8V
• Current - Supply: 8.5mA
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• Meter Type: 3 Phase
• Brief Features: On-Chip Creep Protection, High Frequency Output
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADE7762EBZ - BOARD EVALUATION FOR ADE7762
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

POWER SUPPLY MONITOR
The ADE7762 contains an on-chip power supply monitor. The
power supply (V
when the supply is less than 4 V ± 2% and V
(typical), the outputs of the ADE7762 are inactive and the data
path is held in reset. Once VDD is greater than 4 V ±2% and
VREF is greater than 1.9 V (typical), the chip is active and energy
accumulation begins. At power-down, when VDD falls below
4 V or V
in reset. This implementation ensures correct device operation
at power-up and at power-down. The power supply monitor
has built-in hysteresis and filtering. This gives a high degree of
immunity to false triggering due to noisy supplies.
The power supply and decoupling for the part should be such
that the ripple at V
normal operation.
REF
falls below 1.9 V (typical), the data path is again held
DD
) is monitored continuously. At power-up,
DD
does not exceed ±5% as specified for
REF
is less than 1.9 V
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INTERNAL
RESET
2.4V
1.9V
5V
4V
0V
INACTIVE
Figure 20. On-Chip Power Supply Monitor
ACTIVE
V
V
DD
REF
INACTIVE
ADE7762