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ISOUSB211DPR Datasheet(PDF) 3 Page - Texas Instruments |
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ISOUSB211DPR Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 44 page  5 Pin Configuration and Functions 1 V BUS1 28 V BUS2 2 V 3P3V1 27 V 3P3V2 3 GND1 26 GND2 4 V 1P8V1 25 V 1P8V2 5 V CC1 24 V CC2 6 V2OK 23 V1OK 7 UD- 22 DD- 8 UD+ 21 DD+ 9 EQ10 20 EQ20 10 EQ11 19 EQ21 11 V 1P8V1 18 V 1P8V2 12 GND1 17 GND2 13 CDPENZ1 16 CDPENZ2 14 NC 15 NC Not to scale Figure 5-1. DP Package 28-Pin SSOP Top View Table 5-1. Pin Functions—28 Pins PIN I/O DESCRIPTION NO. NAME 1 VBUS1 — Input Power Supply for Side 1. If a 4.25 V to 5.5 V (example USB power bus) supply is available connect it to VBUS1. In this case an internal LDO generates V3P3V1. Else, connect VBUS1 and V3P3V1 to an external 3.3 V power supply. 2 V3P3V1 — Power Supply for Side 1. If a 4.25 V to 5.5 V supply is connected to VBUS1 connect a bypass capacitor between V3P3V1 and GND1. In this case an internal LDO generates V3P3V1. Else, connect VBUS1 and V3P3V1 to an external 3.3 V power supply. 3 GND1 — Ground 1. Ground reference for Isolator Side 1. 4 V1P8V1 — Power Supply for Side 1. If a 2.4 V to 5.5 V supply is connected to VCC1 connect a bypass capacitor between V1P8V1 and GND1. In this case an internal LDO generates V1P8V1. Else, connect VCC1 and V1P8V1 to an external 1.8 V power supply. 5 VCC1 — Input Power Supply for Side 1. If a 2.4 V to 5.5 V (example USB power bus, or a DC-DC supply derived from USB power bus) supply is available connect it to VCC1. In this case an internal LDO generates V1P8V1. Else, connect VCC1 and V1P8V1 to an external 1.8 V power supply. 6 V2OK O High level on this pin indicates that side 2 is powered up. 7 UD- I/O Upstream facing port D-. 8 UD+ I/O Upstream facing port D+. 9 EQ10 I Equalization setting for Side 1, LSB. Logic Input. 10 EQ11 I Equalization setting for Side 1, MSB. Logic Input. 11 V1P8V1 — Connect pin 11 to pin 4, with local bypass capacitors near pin 11. 12 GND1 — Ground 1. Ground reference for Isolator Side 1. 13 CDPENZ1 I Active low singal. Enables CDP advertising on UD+/UD- pins. 14 NC — Leave floating or connect to V3P3V1. www.ti.com ISOUSB211 SLLSFC5B – NOVEMBER 2021 – REVISED SEPTEMBER 2022 Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: ISOUSB211 |
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