ADE7166ASTZF8 datasheet(32/144 Pages) AD

32 / 144 page

ADE7566/ADE7569/ADE7166/ADE7169

Rev. A | Page 32 of 144

Table 26. Power Supply Event Timing Operating Modes

Parameter

Time

Description

10 ns min

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

10 ns min

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

30 ms

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

switchover.

130 ms

Time between when power supply restore conditions are met (VDCIN above 1.2 V and VDD above 2.75 V if

BATPR[1:0] = 0b01 or VDD above 2.75 V if BATPR[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 VSWOUT CONNECTED TO VBAT

BSO EVENT

(FBSO = 1)

Figure 35. 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 36. Power Supply Management Transitions Between Modes

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