Diodes AP2805 Manuel d'utilisateur télécharger pdf (Page 6)

Data Sheet

500mA High-side Power Distribution Switch with Enable and Flag AP2805

Aug. 2012 Rev 1. 0 BCD Semiconductor Manufacturing Limited

Electrical Characteristics

=5.0V, C

=2.2µF, C

OUT

=1.0µF, Typical T

=25°C, unless otherwise specified)

Parameter Symbol Conditions Min Typ Max Unit

Input Voltage Range V

2.7 5.5 V

Switch On Resistance R

DS(ON)

=5.0V, I

OUT

=0.5A 60 80

Ω

Current Limit I

LIMIT

OUT

=4.0V 0.7 1.0 1.4 A

Supply Current I

SUPPLY

=5.0V, No Load 60 80 µA

Fold-back Short Current I

SHORT

OUT

=0V 0.7 A

Shutdown Supply Current I

SHUTDOWN

Chip Disable, Shutdown Mode 0.1 1 µA

Enable High Input Threshold V

ENH

1.6 5.5 V

Enable Low Input Threshold V

ENL

0 1.0 V

Enable Pin Input Current I

Force 0V to 5.0V at EN Pin -1.0 1.0 µA

Under Voltage Lockou

Threshold Voltage

UVLO

Increasing from 0V 2.2 2.5 2.7 V

Under Voltage Hysteresis V

UVLOHY

0.2 V

Reverse Current I

REVERSE

Chip Disable, V

OUT

0.1 1.0 µA

Output Pull Low Resistance

after Shutdown

DISCHARGE

AP2805A, AP2805C only 100 200

Ω

Output Turn-on Time t

From Enable Active to 90% o

Output

500 µs

Flag Delay Time t

DFLG

From Fault Condition to Flag

Active

5 10 15 ms

Flag Low Voltage V

FLG

SINK

=5.0mA 35 70 mV

Flag Leakage Current I

LEAKAGE

FLAG Disable, Force 5.0V 1.0 µA

Thermal Shutdown

Temperature

OTSD

150

Thermal Shutdown Hysteresis T

HYOTSD

1 2 3 4 5 6 7 8 9 10 11 ... 15 16

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Diodes AP2805 Manuel d'utilisateur Page 6

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