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TPS65982ABZBHR Datasheet(PDF) 87 Page - Texas Instruments |
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TPS65982ABZBHR Datasheet(HTML) 87 Page - Texas Instruments |
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87 / 121 page  + 100 kΩ 10 kΩ 1.8 V DC Barrel Jack Voltage Barrel Jack Detect/ PFET Enable Barrel Jack Detect and PFET Enable 100 kΩ 10 kΩ 1.81 V 20 V DC Barrel Jack 87 TPS65982 www.ti.com SLVSD02D – MARCH 2015 – REVISED JUNE 2019 Product Folder Links: TPS65982 Submit Documentation Feedback Copyright © 2015–2019, Texas Instruments Incorporated 10.2.2.2.2 HD3SS460 Control and DisplayPort Configuration The two Type-C ports in this design support DisplayPort simultaneously on both ports. When a system is not capable of supporting video on both ports the system controller will disable DisplayPort on the second Type-C port through I2C. Table 16 lists the DisplayPort configurations supported in the system. Table 17 lists the summary of the TPS65982 GPIO signals control for the HD3SS460. Although the HD3SS460 is able to multiplex the required AUX_N/P signals to the SBU_1/2 pins, they are connected through the TPS65982 for additional support of custom alternate mode configurations. Table 16. Supported DisplayPort Configurations CONFIGURATION DisplayPort ROLE DisplayPort PIN ASSIGNMENT DisplayPort LANES Configuration 1 DFP_D Pin Assignment C 4 Lane Configuration 2 DFP_D Pin Assignment D 2 Lane and USB 3.1 Configuration 3 DFP_D Pin Assignment E 4 Lane (Dongle Support) Table 17. TPS65982 and HD3SS460 GPIO Control TPS65982 GPIO HD3SS460 CONTROL PIN DESCRIPTION GPIO_0 AMSEL Alternate Mode Selection (DP/USB3) GPIO_3 EN Super Speed Mux Enable DEBUG2 POL Type-C Cable 10.2.2.2.3 9.3.2.3 DC Barrel Jack and Type-C PD Charging The system is design to either charge over Type-C or from the DC barrel jack. The TPS65982 detects that the DC barrel jack is connected to GPIOn. In the simplest form, a voltage divider could be set to the GPIO I/O level when the DC Barrel jack voltage is present, as shown in Figure 80. A comparator circuit is recommend and used in this design for design robustness, as shown in Figure 81. Figure 80. DC Barrel Jack Voltage Divider Figure 81. Barrel Jack Detect Comparator |
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