AP43771V

Document number: DS42883 Rev. 5 - 2

2 of 14

www.diodes.com

December 2021

© Diodes Incorporated

AP43771V

Typical Applications Circuit

CY1

R 4

R 8

C6

C3

C8

T1

U2

R19

C9

GND

GATE

FB

SENSE

VCC-IN

PWM IC

U1

Q 1

D7

R 6

R7

DEM

C4

9

6

8

2

5

R18

3

DRISR

VCC

GND

VDD

AREF

VDET

1

2

3

4

5

6

R20

C12

Q2

U3

C7

C13

HV

VCC

CTRL

RT1

1

4

7

SR IC

CC1

GND

AP43771V

OCDRV

VCC

C15

U4

CC2

V5V

PWR_EN VBUS

VFB

IFB

OTP

ISENP

RT2

C16

C18

C19

R 22

C20

R25

C11

DN

DP

Vo

GND

CON1

Q3

CC2

CC1

D+

D -

AC

R11

D5

F1

C5

NTC1

R10

BD1

C2

L2

R14

D6

C1

R15

C10

R13

R12

L1

R2

L 3

Application 1: Traditional Single Type-C Port USB PD Charger Application

U 2

GND

GATE

FB

SENSE

VCCin

U1

Q 1

DEM

DRISR

VCC

GND

VDD

AREF

VDET

HV

SR IC

DN

GND

VOUT

DP

V5

PWRENBVBUS

VFB

IFB

ISENP

CC1

CC2

Vo

GND

C port 1

CC1

AC

AP43771V

(W-QFN4040-24)

PWM IC

CC2

VCC

CTRL

RT1

DN

DP

V3 V

V

VCC

SDA SCL

GPIO3 GPIO4

V3VD

BUCK

Controller

VIN

VCC5

EN

RT

SS

OCSET

GND

CSM CSP COMP

FB

BG

SW

BST

UG

DN

GND

VOUT

DP

V5

PWRENB VBUS

VFB

IFB

ISENP

CC1

CC2

Vo

GND

C port 2

CC1

CC2

DN

DP

V3 V

V

VCC

SDA SCL

GPIO1

VIN

VCC5

EN

RT

SS

OCSET

GND

CSM CSP COMP

FB

BG

SW

BST

UG

NTC

GPIO5

GPIO5

AP43771V

(W-QFN4040-24)

BUCK

Controller

AZ431

Application 2: Dual C-Ports USB PD Charger Application (W-QFN4040-24 (Type A1) Only）

(Type A1)

(Type A1)