DN

DP

TXN

TXP

RXP

RXN

USB Host

0.1 F

m

0.1 F

m

0.1 F

m

0.1 F

m

10 F

m

0.1 F

m

0.1 F

m

3.3 V

NC

NC

NC

NC

NC

Thermal Pad

3.3 V

0.1 F

m

0.1 F

m

47 kW

47 kW

TX2N

TX2P

RX1N

RX1P

VCC

NC

RSV

GND

TUSB522P

TX1N

TX1P

RX2N

RX2P

OS1

DE1

EQ1

DE2

OS2

EQ2

EN_RXD

USB3.1 Type-A

Receptacle

SSRXP

SSRXN

SSTXP

SSTXN

DP

DN

2

3

8

9

5

6

22

23

20

19

15

16

2

4

3

17

5

10

21

14

18

6

24

7

13

1

3.3 V

13

12

11

9

8

Figure 8-2. Embedded Host Application Schematic

8.2.2.1 ESD Protection

It may be necessary to incorporate an ESD component to protect the TUSB522P from electrostatic discharge

(ESD). It is recommended that the ESD protection component has working peak voltage of ≥ 1.3 V, a breakdown

voltage of ≥ 2.3 V, and a clamp voltage of ≤ 4.0 V. A clamp voltage greater than 4.0 V may require a RESD on

each differential pin. The ESD component should be placed near the USB connector.

Table 8-2. Recommended ESD Protection Component

Manufacturer

Part Number

Required RESD to pass IEC 61000-4-2 Contact ±8-kV

Nexperia

PUSB3FR4

2.2-Ω

Nexperia

PESD2V8Y1BSF

2.2-Ω

TUSB522P

SLLSEV9E – JULY 2016 – REVISED NOVEMBER 2023

www.ti.com

14

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