RT1716

3

DS1716-04

March 2020

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Copyright

2020 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Typical Application Circuit

Reference

Part Number

Description

Package

Manufacturer

R1, R2, R3

WR04X1001FTL

1k

Ω 1%

0402

WALSIN

R4

CR-02FL6---4K7

4.7k

Ω 1%

0402

VIKING

C1, C2

0402B331J250

330pF/25V/X7R

0402

WALSIN

C3

0402B104K500CT

100nF/50V/X7R

0402

WALSIN

CC1

CC2

VBUS

VDD

Battery Charge

Controller

VBUS

CC1

CC2

AP/EC

SCL

INT_N

Battery

Cell

OVP

USB 3.1

Switch

TRX#1

TRX#2

USB/DP/MHL

SDA

GND

GND

1.8V/3.3V

RT1716

A1

A2

A3

B3

C1

C2

C3

B2

MCU_GPIO-3

VBUS

Discharge

C2

330p

C1

330p

R4

4.7k

DC-DC1

MCU_GPIO-1

R1

1k

R3

1k

R2

1k

C3

0.1µF

Table 1. Recommended Components Information

Function Portfolio

Pin Name

Pin Connection

Unused VCONN

VBUS

Short to connector VBUS

or

4.7k to connector VBUS (better for surge)

CC1

Short to connector CC1

CC2

Short to connector CC2

INT_N

Pull-high to AP/EC

SDA

Pull-high to AP/EC

SCL

Pull-high to AP/EC

VDD

Short to DC-DC1

Table 2. Funtion Portfolio Information

Note : If VBUS is shorted between the OVP and Battery Charge Controller, it will occur USB compliance testing failures

and application issues.