MP2674 – CHARGE SYSTEM PROTECTION CIRCUIT

MP2674 Rev. 0.9

www.MonolithicPower.com

3

11/8/2010

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ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Condition

Min

Typ

Max

Units

Power-On Reset

Rising VIN Threshold

2.35

2.43

2.50

V

POR Hysteresis

110

mV

When enabled

0.6

mA

VIN Bias Current

When disabled

25

µA

Protection

Input Over-voltage Protection

(OVP)

5.6

5.80

6.0

V

Input OVP Hysteresis

50

mV

Input OVP Falling Threshold

5.45

V

Input OVP Propagation Delay

1

µs

Over-current Protection

0.78

0.90

1.10

A

Overcurrent Protection Blanking

Time

170

µs

Battery Over-voltage Protection

Threshold

4.29

4.37

4.475

V

Battery OVP Threshold

Hysteresis

55

mV

Battery OVP Falling Threshold

4.225

V

Battery OVP Blanking Time

180

µs

VB Pin Leakage Current

20

nA

Over Temperature Protection

Rising Threshold

150

°C

Over Temperature Protection

Falling Threshold

110

°C

Logic

F L T

Output Logic Low

Sink 5mA current

0.25

0.8

V

F L T

Parasitic Series Resistor

60

Ω

F L T

Output Logic High Leakage

Current

1.5

µA

Power MOSFET

On Resistance

Measured at 200mA,

200

300

mΩ