AW32901/AW32902/AW32905/

AW32909/AW32910/AW32912

Apr. 2018 V1.0

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4

Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD

TYPICAL APPLICATION CIRCUITS

OUT

OVLO

IN

GND

CIN

0.1µF

50V

COUT

1µF

Battery

USB

Port

AW32901

AW32902

AW32905

AW32909

AW32910

AW32912

Charger

ACOK

Controller

PMIC

EN

TVS

Optional

Figure 4

AW329XX typical application circuit(using default OVP threshold)

OUT

OVLO

IN

GND

CIN

0.1µF

50V

R1

R2

COUT

1µF

Battery

USB

Port

AW32901

AW32902

AW32905

AW32909

AW32910

AW32912

Charger

ACOK

Controller

PMIC

EN

TVS

Optional

Figure 5 AW329XX typical application circuit(using external resistors set OVP threshold)

Notice for Typical Application Circuits:

1.

If VBUS is required to pass surge voltage greater than 120V, external TVS is needed, the maximum

clamping voltage of the TVS should be below 34V.

2.

When the default OVP threshold

is used, connect OVLO pin to GND directly or through a 0Ω resistor.

OVLO pin cannot be left floating.

3.

If R1 and R2 are used to adjust the OVP threshold, it is better to use 1% precision resistors to improve the

OVP threshold precision.

4.

If

ACOK is not used, it can be left floating, or short to GND.

5.

CIN

= 0.1μF is recommended for typical application, larger CIN is also acceptable. The rated voltage of CIN

should be larger than the TVS maximum clamping voltage, if no TVS is applied and only AW329XX is

used, the rated voltage of CIN should be 50V.

6.

COUT

= 1μF is recommended for typical application, larger COUT is also acceptable. The rated voltage of

COUT should be larger than the OVP threshold. For example, if the OVP threshold is 6.8V, the rated voltage

of COUT should be 10V or higher.