AP2181D/AP2191D

1.5A SINGLE CHANNEL CURRENT-LIMITED POWER

SWITCH WITH OUTPUT DISCHARGE

AP2181D/2191D

Document number: DS32251 Rev. 2 - 2

4 of 17

www.diodes.com

September 2010

© Diodes Incorporated

Symbol

Parameter

Test Conditions

Min

Typ.

Max

Unit

Input UVLO

1.6

1.9

2.5

V

Input Shutdown Current

0.5

1

μA

Input Quiescent Current

45

70

μA

Input Leakage Current

Disabled, OUT grounded

0.1

1

μA

Reverse Leakage Current

0.1

1

μA

Switch on-resistance

SOT25, MSOP-8,

MSOP-8-EP, SO-8

95

115

m

Ω

DFN2018-6

90

110

-40

°C ≤ T

140

120

140

-40

°C ≤ T

170

Short-Circuit Current Limit

2.0

A

Over-Load Current Limit

1.6

2.1

2.6

A

2.6

A

EN Input Logic Low Voltage

0.8

V

EN Input Logic High Voltage

2

V

EN Input leakage

1

μA

Output turn-on delay time

0.05

ms

Output turn-on rise time

0.6

1.5

ms

Output turn-off delay time

0.05

ms

Output turn-off fall time

0.05

0.1

ms

FLG output FET on-resistance

20

40

Ω

FLG blanking time

4

7

15

ms

Discharge time

0.6

ms

Discharge resistance (Note 3)

100

Ω

Thermal Shutdown Threshold

140

°C

Thermal Shutdown Hysteresis

25

°C

Thermal Resistance Junction-to-

Ambient

SOT25 (Note 4)

170

SO-8 (Note 4)

127

MSOP-8 (Note 4)

118

MSOP-8-EP (Note 5)

67

DFN2018-6 (Note 5)

70

Notes:

3. The discharge function is active when the device is disabled (when enable is de-asserted). The discharge function offers a resistive discharge path

for the external storage capacitor.

4. Device mounted on FR-4 substrate PCB, 2oz copper, with minimum recommended pad layout.

5. Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground

plane.