MP5003 – 3.3V, 1A-3A PROGRAMMABLE CURRENT LIMIT SWITCH WITH AUTO ENABLE

MP5003 Rev. 0.921

www.MonolithicPower.com

3

2/29/2012

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© 2012 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Parameters

Symbol

Condition

Min

Typ

Max

Units

Power FET

Delay Time

Enabling of chip to

resistive load

0.2

ms

ON Resistance

44

82

mΩ

95

Off State Output Voltage

120

mV

Thermal Latch

Shutdown Temperature

Note 4

175

°C

Under/Over Voltage Protection

Output Clamping Voltage

Overvoltage Protection

3.63

4.03

4.43

V

Under Voltage Lockout

Turn on,

Voltage going high

2.15

2.35

2.5

V

Under Voltage Lockout (UVLO)

Hysteresis

100

400

mV

Current Limit

Short Circuit Current Limit

(Hold Current)

1.2

1.55

1.9

A

Trip Current

2.0

2.5

3.0

A

dv/dt Circuit

Rise Time

Float dv/dt pin, Note 5

0.64

1.1

2.0

ms

Enable/Fault

Low Level Input Voltage

Output Disabled

0.5

V

High Level Input Voltage

Output Enabled

2.5

V

High State Maximum Voltage

3.25

V

Low Level Input Current (Sink)

-55

-75

μA

Maximum Fanout for Fault Signal

Total number of chips that

can be connected for

simultaneous shutdown

5

Units

Maximum Voltage on Enable Pin

Note 6

V

Total Device

Bias Current

Device Operational

1.5

2.0

mA

Thermal Shutdown

0.9

Minimum Operating Voltage for

UVLO

Enable<0.5V

2.0

V

Notes:

4) Guaranteed by design.

5) Measured from 10% to 90%.