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TPS25751D Scheda tecnica(PDF) 52 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
PDF  89 Pages
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

TPS25751D Scheda tecnica(HTML) 52 Page - Texas Instruments

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TPS25751
Rup
Rdown
LDO_3V3
GPIOx
GPIO4
GPIOy
GND
Rup
Rdown
GPIO5
USB Type-C
Connector
SBU1
SBU2
GND
TPD2S300
C_CC1
C_CC2
CC1
CC2
Liquid Detection +
Protection Circuit
Q_P1
Q_P2
Q_N1
Q_N2
3.3V
Figure 9-8. TPS25751 Liquid Detection Block Diagram - 2 GPIO Control
TPS25751
Rup
Rdown
LDO_3V3
GPIOx
GPIO4
GND
Rup
Rdown
GPIO5
USB Type-C
Connector
SBU1
SBU2
GND
TPD2S300
C_CC1
C_CC2
CC1
CC2
Liquid Detection +
Protection Circuit
Q_P1
Q_P2
Q_N1
Q_N2
3.3V
Figure 9-9. TPS25751 Liquid Detection Block Diagram - 1 GPIO Control
Table 9-3. Component Recommendation
Q_Pn (GPIO PMOS)
Q_Nn (GPIO NMOS)
Rup
Rdown
CSD25480F3 (Vgsth -0.95V or
similar)
CSD15380F3 (Vgsth 1.1V or
similar)
100kOhm (5%)
1MOhm (5%)
9.2.2.2.1 Liquid Detection Operation
The TPS25751 supports liquid detection by measuring the voltage level across the SBU pins of the Type-C
connector. When a short occurs across the SBU pins to another Type-C pin(s), the TPS25751 takes action to
protect the the Type-C port by disabling the power paths and notifies the embedded controller when applicable.
Once liquid has been detected, the TPS25751 continuously monitors the SBU voltage. During the SBU voltage
monitoring, if the liquid/short is no longer present the TPS25751 takes action to return to normal operation.
TPS25751
SLVSH93 – OCTOBER 2023
www.ti.com
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Copyright © 2023 Texas Instruments Incorporated
Product Folder Links: TPS25751



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