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ADP1043 Datasheet(PDF) 4 Page - Analog Devices

Part No. ADP1043
Description  Digital Controller for Isolated Power Supply Applications
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADP1043 Datasheet(HTML) 4 Page - Analog Devices

   
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ADP1043
Preliminary Technical Data
Rev. PrA | Page 4 of 8
Pin No.
Mnemonic
Description
17
SCL
I2C Serial Clock Input. This signal is referred to AGND.
18
SDA
I2C Serial Data Input and Output (Open Drain). This signal is referred to AGND.
19
PSON
Power Supply On Input. This signal is referred to DGND.
20
FLAGIN
Flag Input. An external signal can be input here to generate a flag condition.
21
PGOOD2
Power-Good Output (Open Drain). This signal is referred to AGND. This pin is controlled
by the PGOOD2 flag. If any flag is set, this pin toggles.
22
PGOOD1
Power-Good Output (Open Drain). This signal is referred to AGND. This pin is controlled
by the PGOOD flag. If any of the following are out of range, this pin toggles: ACSNS, OCP
CS1, OCP CS2, VS1 OVP, VS2 OVP, or UVP.
23
SHAREo
Share Bus Output Voltage Pin. When configured as a digital share bus, this pin is a digital
output. When configured as an analog share bus, this pin is an open-drain analog output.
This signal is referred to VS3−.
24
SHAREi
Analog Share Bus Feedback Pin. This signal is input to an ADC in the ADP1043. This
signal is referred to VS3−.
25
DGND
Digital Ground. This pin is the ground for the digital circuitry of the ADP1043. Star
connect to AGND.
26
VCORE
Output of 2.5 V Regulator. Connect a 100 nF capacitor from this point to DGND.
27
VDD
Positive Supply Input. Range is from 3 V to 3.6 V. This signal is referred to AGND.
28
RTD
Thermistor Input. A 10 kΩ or 100 kΩ thermistor is placed from this pin to AGND. This
signal is referred to AGND.
29
ADD
Address Select Input. Connect a resistor from ADD to GND. This signal is referred to
AGND.
30
RES
Resistor Input. This pin sets up the internal voltage reference for the ADP1043. Connect a
50 kΩ resistor (±1%) from RES to GND. This signal is referred to AGND. Decoupling this
pin to AGND is recommended for noise immunity.
31
VS3−
Inverting Remote Voltage Sense Input. There should be a low ohmic contact to AGND.
32
VS3+
Noninverting Remote Voltage Sense Input. This signal is referred to VS3−.


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