MP5086 –5.5V, 7A, LOW RDSON LOAD SWITCH WITH CURRENT MONITORING AND NTC COMPARATOR

MP5086 Rev.1.0

www.MonolithicPower.com

4

11/6/2014

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ELECTRICAL CHARACTERISTICS

Parameters

Symbol

Condition

Min

Typ

Max

Units

Input and Supply Voltage Range

Input Voltage

2.3

5.5

V

Supply Current

Normal Current

Enable,

NTC

high, No load

240

310

µA

Bypass Current

No load, BP float

0.1

1

µA

Transportation Current

Transportation Mode

0.1

1

µA

Power FET

Main NFET ON Resistance

8

mΩ

11

17

Bypass PFET ON Resistance

65

Ω

Thermal Shutdown

(5)

Shutdown Temperature

155

°C

Under Voltage Protection

Under

Voltage

Lockout

Threshold

UVLO Rising Threshold

2.0

2.2

V

UVLO Hysteresis

200

mV

Enable

EN High Level

1.2

V

EN Low Level

0.4

V

EN High to Low Response Time

From EN off to Main FET

off

5

µs

Soft Start

Soft -Start

200

µs

IMON

Current Limit

record peak current limit

1.54

1.64

1.74

A

Current Monitor Accuracy

44.35

45.73

47.11

µA

35.49

36.59

37.69

(6)

17.39

18.3

19.22

NTC Block

NTC Comparator Falling Threshold

17.5

20

22.5

OTP Delay

With 4.7nF cap between

OTP and GND , from 50%

NTC to 50% OTP

200

µs

OTP Refresh Voltage

0.6

0.84

V

OTP High Level

through external 50k, Over

Temperature happen

3.1

V

OTP Low Level

Sink 1mA

0.2

V

OTP Self-biased Voltage

(5)

pull up to 5V through 50k

resistor

0.8

V

Notes:

5) Guarantee by Characterization. Not production test.

6) If sense current is smaller than 1.5A, the IMON accuracy will be affected by some internal offset.