ADE7166_15 datasheet(36/152 Pages) AD

36 / 152 page

ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569

Rev. B | Page 36 of

152

Table 27. Power Supply Event Timing Operating Modes

Parameter

Time

Description

10 ns min

Time between when VDCIN goes below 1.2 V and when FVDCIN is raised.

10 ns min

Time between when VDD falls below 2.75 V and when battery switchover occurs.

30 ms typ

Time between when VDCIN falls below 1.2 V and when battery switchover occurs if VDCIN is enabled to cause

battery switchover.

130 ms typ

Time between when power supply restore conditions are met (VDCIN > 1.2 V and VDD > 2.75 V if BATPRG[1:0] =

0b01 or VDD > 2.75 V if BATPRG[1:0] = 0b00) and when VSWOUT switches to VDD.

VDD

VDCIN

VP – VN

2.75V

1.2V

SAG LEVEL TRIP POINT

SAGCYC = 1

SAG EVENT

(FSAG = 1)

VDCIN EVENT

(FVDCIN = 1)

IF SWITCHOVER ON LOW VDCIN IS

ENABLED, AUTOMATIC BATTERY

SWITCHOVER OCCURS. VSWOUT

IS CONNECTED TO VBAT.

BSO EVENT

(FBSO = 1)

Figure 36. Power Supply Management Interrupts and Battery Switchover with VDD or VDCIN Enabled for Battery Switchover

VP − VN

SAG LEVEL

TRIP POINT

SAG EVENT

VDCIN

1.2V

30ms MIN.

130ms MIN.

VDCIN EVENT

VBAT

VDD

2.75V

VSW

BATTERY SWITCH

ENABLED ON

LOW VDCIN

VSW

BATTERY SWITCH

ENABLED ON

LOW VDD

PSM0

PSM1 OR PSM2

Figure 37. Power Supply Management Transitions Between Modes

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