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

Rev.1.1 Oct.16, 2019

AX3165/A



ABSOLUTE MAXIMUM RATINGS (at TA=25°C)

Characteristics

Symbol

Rating

Unit

VCC Pin Voltage

VCC

VSS - 0.3 to VSS + 55

V

Feedback Pin Voltage

VFB

VSS - 0.3 to 6

V

EN Pin Voltage

VEN

VSS - 0.3 to VCC

V

SS Pin Voltage

SS

VSS - 0.3 to 6

V

COMP Pin Voltage

VCOMP

VSS - 0.3 to 6

V

VGATE Pin Voltage

VGATE

VSS - 0.3 to VCC

V

Switch Pin Voltage

VSW

VSS - 0.3 to VCC + 0.3

V

Power Dissipation

PD

Internally limited

mW

Storage Temperature Range

TST

-65 to +150

°C

Operating Junction Temperature Range

TOJP

-40 to +125

°C

Operating Supply Voltage

VOP

11 to 55

V

Thermal Resistance from Junction to case

θJC

15

°C/W

Thermal Resistance from Junction to ambient

θJA

75

°C/W

Note: θJA is measured with the PCB copper area (need connect to Exposed Pad) of approximately 1.5 in2

(Multi-layer).



ELECTRICAL CHARACTERISTICS

(VCC = 24V, TA=25°C, unless otherwise specified)

Characteristics

Symbol

Conditions

Min Typ Max Units

Feedback Voltage

VFB

IOUT=10mA

0.98 1.00 1.02 V

Quiescent Current

ICCQ

VFB=1.2V

force driver off

-

3

6

mA

Feedback Bias Current

IFB

IOUT=0.1A

- 0.1 0.5 uA

Shutdown Supply Current

ISD

VEN =0V

- 0.5 1

mA

Line Regulation

△VOUT/VOUT VCC =10V~55V,

IOUT=10mA

- 0.3 0.6 %

Load Regulation

△VOUT/VOUT IOUT = 0.2 to 2A

- 0.3 0.6 %

Current Limit

ICL

2.8 -

-

A

Oscillator frequency

FOSC

AX3165

90 120 150 KHz

FOSC

AX3165A

200 250 300 KHz

Short frequency

FOSC1

AX3165 ICL

-

50

-

KHz

FOSC1

AX3165A ICL

- 110 -

KHz

FOSC2

AX3165/AX3165A

VFB < 0.3

-

30

-

KHz

EN Pin Logic input threshold

voltage

VSH

High (regulator ON)

2.0 -

-

V

VSL

Low (regulator OFF)

-

- 0.8

EN Pin Input Current

ISH

VEN=2.5V (ON)

-

5

-

uA

ISL

VEN=0.3V (OFF)

-

5

-

uA

SS Current

ISS

VSS=0V

-

10

-

uA

Internal MOSFET RDSON

RDSON

VCC=12V, 1A,VFB=0V

- 220 300 mΩ

Efficiency (AX3162)

EFFI

VCC = 24V,

VOUT = 5V, IOUT = 2A

-

90

-

%

Thermal shutdown Temp

TSD

- 150 -

°C

Thermal Shutdown Hysteresis

TSH

-

40

-

°C