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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TUSB8044AI Fiches technique(PDF) 51 Page - Texas Instruments |
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TUSB8044AI Fiches technique(HTML) 51 Page - Texas Instruments |
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51 / 63 page  I2C_SDA I2C_SCL BBbmConfigured0 BBEN BBbmConfigured1 I2C_SDA I2C_SCL BBEN BBbmConfigured0 BBbmConfigured1 SS_SEL_DP 4.7k R16 4.7k R15 3P3V C1_CC1 4 C1_CC2 5 C2_CC1 6 C2_CC2 7 GPIO 3 VBUS2 2 VBUS1 1 GPIO 10 GPIO 8 GPIO 9 GPIO 11 GPIO 12 HPD 15 SDA 13 SCL 14 U5 PD controller UFP_CC1 VCONN DFP_CC1 DFP_CC2 DP_hub_HPD UFP_VBUS DFP_VBUS EEPROM U6 I2C_SCL I2C_SDA OVERCUR1z PWRCT1_BATEN1 SCL/SMBCLK 38 SDA/SMBDAT 37 BBEN/HS_UP 42 BBbmConfigured0/FULLAUTO/SS_UP 40 BBbmConfigu red1/AUTOEN/HS_SUSPEND 45 U1F TUSB8044ARGCR GND 1 IN 2 IN 3 EN1 4 EN2 5 FAULT2 6 ILIM 7 OUT2 8 OUT1 9 FAULT1 10 PAD 11 U3 TPS2561DRCR 5V OVERCUR2z 3P3V 10k R10 10k R9 PWRCT2_BATEN2 PWRCT3_BATEN3 OVERCUR3z 0.1uF C30 0.1uF C31 150µF C32 150µF C33 GND 25.5k R11 DN2_VBUS DN3_VBUS GND 1 IN 2 IN 3 EN 4 FLT 5 OUT 6 PAD 9 OUT 8 OUT 7 U4 TPS2001CDGN 5V PWRCT4_BATEN4 OVERCUR4z 3P3V 10k R12 4.7uF C35 0.1uF C36 0.1uF C34 GND GND DN4_VBUS 150µF C38 0.1uF C37 4.7uF C28 0.1uF C29 0.1uF C27 GND 51 TUSB8044A www.ti.com SLLSF92 – FEBRUARY 2019 Product Folder Links: TUSB8044A Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated 9.2.1.2.6 VBUS Power Switch Implementation This particular example uses the Texas Instruments TPS2561 Dual Channel Precision Adjustable Current- Limited power switch. For details on this power switch or other power switches available from Texas Instruments, refer to the Texas Instruments website. Figure 42. VBUS Power Switch Implementation 9.2.1.2.7 PD Controller and EEPROM Implementation In this specfic application, PD controller monitors and controls the CC line and the VBUS on both the upstream Type-C port and the downstream Type-C port. It also utilizes BBconfigure0 and BBconfigure1 to set up the billboard function of TUSB8044 and custom billboard information is stored in the EEPROM. Moreover, the controller uses the GPIOs to control the super speed MUX. The TUSB8044 loads the 256 bytes plus the billboard strings from an external EEPROM. The billboard string starts at address 0x100 and ends at address 0x2DF for a total of 480 bytes. A minimum of 5.888Kbit EEPROM is recommended. EEPROMs do not come in this size so an 8Kbit EEPROM (10-bit addressing) is recommended. For example, an Atmel AT24C08A could be used. Figure 43. PD Controller and EEPROM Implementation Figure 44. PD Controller and EEPROM Implementation |
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