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PAC1934 датащи(PDF) 17 Page - Microchip Technology

номер детали PAC1934
подробное описание детали  Single/Multi-Channel DC Power/Energy Monitor with Accumulator
PDF  64 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PAC1934 датащи(HTML) 17 Page - Microchip Technology

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 2017-2019 Microchip Technology Inc.
DS20005850E-page 17
PAC1931/2/3/4
FIGURE 4-2:
PAC1931/2/3/4 Functional Block Diagram.
FIGURE 4-3:
PCB Pattern for Sense
Resistor.
Figure 4-3 shows the recommended PCB pattern for
sense resistor with wide metal for the high-current path.
The drawing shows metal, solder paste openings and
resistor outline. VSOURCE connects to the +terminal of the
high-current path, and the load connects to the -terminal
of the high-current path. Sense+ and Sense- have a
Kelvin connection to the current sense resistor to ensure
that no metal with high current is included in the VSENSE
measurement path. Sense+ and Sense- are shown as a
differential pair, route them as a differential pair to the
Sense inputs at the chip. The input pins allow for a typical
VSENSE trace resistance of 1 k, which allows the routing
flexibility far away from the chip itself on the board.
VDD
GND
VDD I/O
ADDRS EL
SLO W/ALE RT
Accumlato r
Differen tia l
VSENS E
Amplifier
VBUS
Buffer/
Divi der
SM_CLK
SM_DATA
PWRDN
ADC/MUX Clocking &
Control
VBUS
Registe rs
VSENS E
Registe rs
VPOWE R
Registe rs
Accumulator
Registe rs
Control
Registe rs
Calculation
and
Calibra tion
16-bit
ADC
16-bit
ADC
Resistor
Decoder
SENSE 1+
SENSE 1-
SENSE 2+
SENSE 2-
SENSE 3+
SENSE 3-
SENSE 4+
SENSE 4-
VBUS1
VBUS2
High
Voltage
MUX
VBUS4
Sen se1+
Sen se2+
Sen se1-
Sen se2-
Sen se3+
Sen se3-
Sen se4+
Sen se4-
VBUS3



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