AP2145/AP2155

0.5A SINGLE CHANNEL CURRENT-LIMITED POWER

SWITCH WITH OUTPUT DISCHARGE

AP2145/AP2155

Document number: DS32031 Rev. 2 - 2

3 of 13

www.diodes.com

September 2010

© Diodes Incorporated

Recommended Operating Conditions

Symbol

Parameter

Min

Max

Unit

Input voltage

2.7

5.5

V

Output Current

0

500

mA

Operating Ambient Temperature

-40

85

°C

Symbol

Parameter

Test Conditions

Min

Typ.

Max

Unit

Input UVLO

1.6

1.9

2.5

V

Input Shutdown Current

Disabled, OUT = open

0.5

1

μA

Input Quiescent Current

Enabled, OUT = open

45

70

μA

Input Leakage Current

Disabled, OUT grounded

-1

1

μA

Reverse Leakage Current

1

μA

40

MSO-8-EP

90

140

m

Ω

SO-8

95

140

m

Ω

120

160

m

Ω

Short-Circuit Current Limit

0.7

A

Over-Load Current Limit

40

0.6

0.8

1.0

A

Current limiting trigger

threshold

1.0

A

Short-Circuit Response Time

10

μs

EN Input Logic Low Voltage

0.8

V

EN Input Logic High Voltage

2

V

EN Input leakage

1

μA

Output Leakage Current

Disabled

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

0.01

ms

Output turn-off fall time

0.05

0.1

ms

20

40

Ω

FLG Leakage Current

1

μA

FLG blanking time

4

7

15

ms

135

°C

Thermal Shutdown Hysteresis

25

°C

θ

JA

Thermal Resistance Junction-

to-Ambient

SO-8 (Note 3)

110

MSO-8-EP (Note 4)

60

Notes:

3. Test condition for SO-8: Device mounted on FR-4, 2oz copper, with minimum recommended pad layout.

4. Test condition for MSO-8-EP: Device mounted on 2” x 2” FR-4 substrate PC board, 2oz copper, with minimum recommended pad on top layer

and thermal vias to bottom layer ground plane.