AP3108LS

Document number: DS42105 Rev. 3 - 2

5 of 16

www.diodes.com

February 2021

© Diodes Incorporated

AP3108LS

Electrical Characteristics (@TA = -40°C to +85°C, VCC = 16V, unless otherwise specified.)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Power Supply Voltage (VCC Pin)

IST

Startup Current

—

—

1.5

15

μA

ICC

Operating Supply Current

VFB = 0V, CL = 1nF

0.35

0.55

0.75

mA

VFB = 3V, CL = 0nF

1.2

1.7

2.2

VST

Turn-On Threshold Voltage

—

15.3

15.8

16.3

V

VM

VCC Maintain

—

8.1

8.5

8.9

V

VCC-UVLO

VCC UVLO Voltage

—

7

7.5

8

V

VCC-OVP

VCC OVP Threshold Voltage

—

32

33

34

V

HV Section (HV Pin)

ICHARGE-L

Charge Current

VCC = 0V, VHV = 100V

0.1

0.2

0.35

mA

ICHARGE-H

VCC = 6V, VHV = 100V

1.5

1.8

2.2

mA

ICHARGE-FAULT

Charge Current If Fault Occurs

VCC = 6V, VHV = 100V

50

95

145

µA

VBR-IN

Brown In Voltage

—

95

100

105

V

VBR-OUT

Brown Out Voltage

—

87

91

95

V

tBR-IN

Delay of Brown In (Note 8)

—

—

100

—

µs

tBR-OUT

Delay of Brown Out (Note 8)

—

—

50

—

ms

IDISCH-X

X-CAP Discharge Current

—

1.3

1.7

2.1

mA

PWM Section/Oscillator Section

DMAX

Maximum Duty Cycle

—

70

75

80

%

fS

Oscillation frequency

—

60

65

70

kHz

fOSC-GREEN

Green Mode Frequency

—

18

–

30

kHz



fOSC-JITTER

Frequency Dithering

—

±4

±6

±8

%



Current Sense Section (SENSE Pin)

VREF

Inner Reference For Primary

Constant OCP Control

—

2.47

2.5

2.53

V

VCS-MAX

Maximum SENSE Voltage

VFB = 4.5V

0.93

0.95

0.97

V

tDELAY-CS

Delay To Output (Note 7)

—

—

100

—

ns

VTH-FOCP

FOCP Voltage

—

1.2

1.3

1.4

V

VTH-SSCP

SSCP Voltage

—

80

100

120

mV

tLEB

LEB Time Of SENSE

—

200

250

300

ns

Feedback Input Section (FB Pin)

KFB-CS

The Ratio of FB Input Voltage

to Current Sense Voltage

—

2.5

3

3.5

V/V

RFB

Input Impedance

—

15

20

25

kΩ

VFB-OCP

Threshold For Overcurrent

Protection (Note 8)

—

—

4.2

—

V

Notes:

7. Cycle-by-Cycle limit delay time contains OCP comparator delay time and driver delay time, Guaranteed by design.

8. Guaranteed by design.