AP3790 datasheet(4/17 Pages) DIODES

4 / 17 page

AP3790

Document number: DS37221 Rev. 3 - 2

4 of 17

www.diodes.com

October 2014

AP3790

A Product Line of

Diodes Incorporated

Electrical Characteristics (@VCC = 12V, TA = +25°C, unless otherwise specified.)

Symbol

Parameters

Conditions

Min

Typ

Max

Unit

STARTUP AND UVLO SECTION

VTH_ST

Startup Threshold

–

15.5

VOPR(MIN)

Minimal Operating Voltage

–

5.2

5.8

6.4

STANDBY CURRENT SECTION

IST

Startup Current

VCC = VTH_ST-1V before

startup

0.2

0.6

μA

ICC_QST

Quiescent Current

Static current @ OUT pin

no load

435

500

565

DRIVING OUTPUT SECTION

RDS(ON)

Sink Resistance

1V @ OUT pin

2.4

2.8

Ω

IOUT(MAX)

The Maximum Source Current

–

OPERATING FREQUENCY SECTION (5% Load to Full Load)

tOFF(MAX)

Maximum Off Time

–

691

768

845

μs

tSAMPLE

Sampling Time

37% to 100% full load

5.4

6.6

μs

4% to 37% full load

3.2

3.6

4.0

μs

0% to 4% full load

(Note 5)

2.25

2.5

2.75

μs

FREQUENCY JITTER

△V

CS/VCS

VCS Modulation

7% to 100% full load

tMOD

VCS Modulation Period

–

230

256

282

μs

CURRENT SENSE SECTION

VCS_H

Current Sense Threshold

37% to 100% full load

830

900

970

VCS_M

4% to 37% full load

550

600

650

VCS_L

0% to 4% full load

(Note 5)

320

350

380

RLINE

Built-in Line Compensation Resistor

–

160

200

240

Ω

tLEB

Leading Edge Blanking

VCS_H and VCS_M

425

500

575

VCS_L (Note 5)

170

200

230

CONSTANT VOLTAGE SECTION

VFB@5V

Feedback Threshold Voltage

–

3.94

4.0

4.06

VFB@4.8V

3.75

3.85

3.95

VFB@4.6V

3.61

3.7

3.79

VFB@4.4V

3.47

3.56

3.65

VFB@4.2V

3.32

3.41

3.5

VFB@4V

3.18

3.26

3.34

AP3790 数据表(PDF) 4 Page - Diodes Incorporated

AP3790 数据表(HTML) 4 Page - Diodes Incorporated

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

数据表下载