Data Sheet

ADE7912/ADE7913

Rev. 0 | Page 35 of 44

Figure 53. Power-Up Procedure for Systems with Multiple ADE7912/ADE7913 Devices; Only Phase A ADE7912/ADE7913 Are Clocked from a Crystal

Figure 54. Power-Up Procedure for Systems with Multiple ADE7912/ADE7913 Devices Clocked from a Microcontroller

ALL ADE7912/ADE7913s

POWERED UP

TIMER TURNED ON

START

FUNCTIONING

STATUS0[0]

(RESET_ON)

CLEARED TO 0

DC-TO-DC

CONVERTERS POWERED UP

AND

Σ-Δ MODULATORS

FUNCTIONAL

MICROPROCESSOR

CONFIG[0] TO 1.

GENERATE CLKOUT

DC-TO-DC CONVERTER POWERED

UP AND ITS

Σ-Δ MODULATORS

FUNCTIONAL

(RESET_ON) CLEARED TO 0

3.3V – 10%

≈2.6V

0V

NONISOLATED

SIDE READY

ISOLATED

SIDE READY

23ms

100ms

100ms

20ms

20ms

ALL ADE7912/ADE7913s

POWERED UP

ADE7912/ADE7913s POR

TIMERS TURNED ON

MICROPROCESSOR

GENERATES CLOCK

TO ADE7912/ADE7913s

ADE7912/ADE7913s BIT

STATUS0[0]

(RESET_ON)

CLEARED TO 0

ADE7912/ADE7913s

DC-TO-DC

CONVERTERS

POWERED UP AND

Σ-Δ MODULATORS

FUNCTIONAL

3.3V – 10%

≈2.6V

0V

ALL

ADE7912/

ADE7913s

NONISOLATED

SIDE READY

ALL

ADE7912/

ADE7913s

ISOLATED

SIDE READY

20ms

100ms