AP3771

Document number: DS37281 Rev. 1 - 2

4 of 11

www.diodes.com

May 2014

© Diodes Incorporated

AP3771

A Product Line of

Diodes Incorporated

Absolute Maximum Ratings (Note 4)

Symbol

Parameter

Rating

Unit

VCC

Supply Voltage

-0.3 to 30

V

–

CS, CPC to GND

-0.3 to 7

V

VFB

FB Input Voltage

-40 to 10

V

–

Output Voltage at GATE

-0.3 to 15

V

TJ

Operating Junction Temperature

+150

ºC

TSTG

Storage Temperature

-65 to +150

ºC

TLEAD

Lead Temperature (Soldering, 10 sec)

+300

ºC

θ

JA

Thermal Resistance (Junction to Ambient)

200

ºC/W

Note 4

: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.

Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.

Electrical Characteristics (V

CC =15V, TA=+25°

C, unless otherwise specified.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

UVLO SECTION

VTH (ST)

Startup Voltage Threshold

–

13

15.5

18

V

VOPR(MIN)

Minimal Operating Voltage

–

5.5

6.5

7.5

V

STANDBY CURRENT SECTION

IST

Startup Current

VCC=VTH (ST)-1V,

Before startup

0

0.2

0.6

μA

ICC(OPR)

Operating Current

Static current

300

400

500

DRIVE OUTPUT SECTION

VGATE

Gate Voltage

–

8

10

12

V

ISOURCE

Source Current

VGATE =0V

30

75

120

mA

RDS(ON)

Sink Resistance

–

30

40

50

Ω

LINE COMPENSATION SECTION

gm

Line Compensation Transconductance

(Note 5)

–

1.1

1.5

1.9

μS

CURRENT SENSE SECTION

VCS

Current Sense Threshold Voltage at

Heavy Load (CV Mode) and CC Mode

–

480

510

540

mV

tLEB

Leading Edge Blanking

–

300

475

800

ns

FEEDBACK INPUT SECTION

VFB

Feedback Threshold

–

3.94

4

4.06

V

IFB

FB Input Leakage Current

VFB=4V

2

3

4

μA

CABLE COMPENSATION SECTION

ΔV

FB-CABLE/VFB%

Cable Compensation Voltage

AP3771A

6

7

8

%

AP3771B

2

3

4

%