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TPS25751D Scheda tecnica(PDF) 39 Page - Texas Instruments

Il numero della parte TPS25751D
Spiegazioni elettronici  TPS25751 USB Type-C® and USB PD Controller with Integrated Power Switches Optimized for Power Applications
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS25751D Scheda tecnica(HTML) 39 Page - Texas Instruments

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The device behavior is determined in several ways depending upon the decoded value of the ADCIN1 and
ADCIN2 pins. The following table shows the decoded values for different resistor divider ratios. See Pin
Strapping to Configure Default Behavior for details on how the ADCINx configurations determine default device
behavior. See I2C Address Setting for details on how ADCINx decoded values affects default I2C target address.
Table 8-2. Decoding of ADCIN1 and ADCIN2 Pins
DIV = RDOWN / (RUP + RDOWN)(1)
Without Using RUP
or RDOWN
ADCINx Decoded Value(2)
MIN
Target
MAX
0
0.0114
0.0228
tie to GND
0
0.0229
0.0475
0.0722
N/A
1
0.0723
0.1074
0.1425
N/A
2
0.1425
0.1899
0.2372
N/A
3
0.2373
0.3022
0.3671
N/A
4
0.3672
0.5368
0.7064
tie to LDO_1V5
5
0.7065
0.8062
0.9060
N/A
6
0.9061
0.9530
1.0
tie to LDO_3V3
7
(1)
See I2C Address Setting to see the exact meaning of I2C Address Index.
(2)
See Pin Strapping to Configure Default Behavior for how to configure a given ADCINx decoded value.
8.3.7 ADC
The TPS25751 ADC is shown in Figure 8-23. The ADC is an 8-bit successive approximation ADC. The input to
the ADC is an analog input mux that supports multiple inputs from various voltages and currents in the device.
The output from the ADC is available to be read and used by application firmware.
ADC
Input
Mux
8 bits
Voltage
Divider 2
Buffers &
Voltage
Divider 1
ADCIN1
ADCIN2
GPIO4
GPIO2
VBUS
I-to-V
I_VBUS
LDO_3V3
Copyright © 2018, Texas Instruments Incorporated
Voltage
Divider 1
GPIO0
GPIO5
Figure 8-23. SAR ADC
8.3.8 BC 1.2 (USB_P, USB_N)
The TPS25751 supports BC 1.2 as a Portable Device or Downstream Port using the hardware shown in Figure
8-24.
www.ti.com
TPS25751
SLVSH93 – OCTOBER 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: TPS25751



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