ADE7569ASTZF16 Analog Devices Inc, ADE7569ASTZF16 Datasheet - Page 32

• Manufacturer Part Number: ADE7569ASTZF16
• Description: IC ENERGY METER MCU 16K 64LQFP
• Manufacturer: Analog Devices Inc

Specifications of ADE7569ASTZF16

• Applications: Energy Measurement
• Core Processor: 8052
• Program Memory Type: FLASH (16 kB)
• Controller Series: ADE75xx
• Ram Size: 512 x 8
• Interface: I²C, SPI, UART
• Number Of I /o: 20
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Ic Function: Single Phase Energy Measurement IC
• Supply Voltage Range: 3.13V To 3.46V, 2.4V To 3.7V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
POWER SUPPLY ARCHITECTURE
Each ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/
ADE7569 has two power supply inputs, V
require only a single 3.3 V power supply at V
A battery backup, or secondary power supply, with a maximum
of 3.7 V can be connected to the V
ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
connect V
the device circuitry. The V
the internal power supply (V
current of 6 mA. This pin can also be used to power a limited
number of peripheral components. The 2.5 V analog supply (V
and the 2.5 V supply for the core logic (V
chip linear regulators from V
supply architecture of the ADE7116/ADE7156/ADE7166/
ADE7169/ADE7566/ADE7569.
The ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/
ADE7569 provide automatic battery switchover between V
and V
addition, the BCTRL input can be used to trigger a battery
switchover. The conditions for switching V
V
section. V
3.3 V dc signal. This input is intended for power supply super-
visory purposes and does not provide power to the ADE7116/
ADE7156/ADE7166/ADE7169/ADE7566/ADE7569 circuitry.
*NOT AVAILABLE IN THE ADE7116.
BATTERY SWITCHOVER
The ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/
ADE7569 monitor V
over from V
the V
default. Setting Bit 1 in the Battery Switchover Configuration SFR
(BATPR, Address 0xF5) disables battery switchover so that V
is always connected to V
V
(PERIPH, Address 0xF4), which is described in Table 20. Bit 6 is
set when V
connected to V
BCTRL
BAT
SWOUT
and back to V
DD
BAT
is indicated by Bit 6 in the Peripheral Configuration SFR
, V
V
DCIN
POWER SUPPLY
based on the voltage level detected at V
DD
MANAGEMENT
SCRATCH PAD
DCIN
DCIN
SWOUT
DD
or V
V
is an input pin that can be connected to a 0 V to
, or BCTRL pin. Battery switchover is enabled by
DD
to V
BAT
BAT
Figure 32. Power Supply Architecture
is connected to V
TEMPERATURE ADC
.
V
DD
BAT
to V
BAT
DD
are described in the Battery Switchover
, V
can be configured based on the status of
SWOUT
V
SWOUT
BAT
ADC
SWOUT
SW
, and V
SWOUT
ADC
LCD
, which is used to derive power for
SWOUT
V
SWOUT
(see Table 19). The source of
*
output pin reflects the voltage at
. Figure 32 shows the power
*
BAT
) and has a maximum output
DCIN
DD
*
input. Internally, the
and cleared when V
LDO
LDO
. Automatic battery switch-
RTC
DD
INTD
SWOUT
and V
V
DD
V
3.3V
) are derived by on-
INTD
INTA
for full operation.
DD
from V
BAT
or V
, which
2.5V
SPI/I
UART
MCU
ADE
DCIN
DD
2
SWOUT
C
to
DD
. In
INTA
DD
Rev. B | Page 32 of 152
is
)
The battery switchover functionality provided by the ADE7116/
ADE7156/ADE7166/ADE7169/ADE7566/ADE7569 allows a
seamless transition from V
switchover option ensures a stable power supply to the device, as
long as the external battery voltage is above 2.75 V. It allows
continuous code execution even while the internal power
supply is switching from V
energy metering ADCs are not available when V
used for V
Power supply monitor (PSM) interrupts can be enabled to
indicate when battery switchover occurs and when the V
power supply is restored (see the Power Supply Management
(PSM) Interrupt section.)
V
The following three events switch the internal power supply
(V
•
•
•
Switching from V
To switch V
must be true:
•
•
•
DD
SWOUT
to V
V
switches from V
BATPRG[1:0] bits in the battery switchover configuration
SFR (BATPR, Address 0xF5) = 0b01. Setting these bits
disables switchover based on V
low V
V
switches from V
BATPRG[1:0] bits in the BATPR SFR are cleared.
Falling edge on BCTRL. When the battery control pin,
BCTRL, goes low, V
external switchover signal can trigger a switchover to V
at any time. Setting the INT1PRG bits to X01 in the
interrupt pins configuration SFR (INTPR, Address 0xFF)
enables the battery control pin (see Table 17).
V
above 2.75 V.
V
is enabled, V
above 1.2 V and V
Rising edge on BCTRL. If the battery control pin is enabled,
V
first or second bullet point is satisfied.
DD
DCIN
DD
DCIN
SWOUT
) from V
BAT
> 2.75 V. V
< 2.75 V. When V
SWOUT
DCIN
< 1.2 V. When V
> 1.2 V and V
SWOUT
switches back to V
is disabled by default.
.
DD
from V
SWOUT
to V
BAT
SWOUT
DD
DD
to V
DD
to V
switches to V
BAT
to V
DD
switches back to V
SWOUT
BAT
remains above 2.75 V.
:
DD
DD
DD
DD
DCIN
BAT
> 2.75 V. If the low V
BAT
to V
to V
to V
falls below 2.75 V, V
. This event is enabled when the
switches from V
. This event is enabled when the
DD
falls below 1.2 V, V
DD
after BCTRL is high, and the
BAT
BAT
, all of the following events
DCIN
. An automatic battery
DD
and back. Note that the
after V
. Battery switchover on
DD
after V
DCIN
DD
BAT
DCIN
to V
SWOUT
SWOUT
remains
DD
is being
condition
BAT
remains
. This
DD
BAT