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Axelite Confidential Materials, do not copy or distribute without written consent.

Rev1.4 Oct.08, 2019

AX3055



BLOCK DIAGRAM

+

-

0.4V

-

+

VREF

EA

FB

COMP

ramp

VIN

5V

VBS

5V

Fault

Logics

UGR

LX

+

-

SEN1

0.1V

Cable

compensation

AGND

GND

UV

Over Temperature

Protection

UVLO

Internal

Regulator

+

-

0.4V

Current

Sensor1

Current

Sensor2

SEN2

0.1V

Oscillator

120KHz

Gate

Control

Zero

Current

Detection

OCSET

+

-

OV

1.08V

Discharge

10V

Q1

Q2

AVIN

UG

LGR

LG



PIN ASSIGNMENT

The package of AX3055 is QFN5*5-20L the pin assignment is given by:

15

13

17

20

14

18

19

(TOP VIEW)

SEN2

SEN1

NC

LRG

UG

VIN

VIN

LG

GND

COMP AVIN OCSET VBS

LX

11

LX

16

UGR

1

3

2

5

9

6

8

7

10

FB

4

12

LX

GND

GND

AGND

VIN

LX