MIC2044/2045

Micrel

MIC2044/2045

4

October 2003

V

/FAULT, PWRGD Output Voltage ................................... 6V

/FAULT, PWRGD Output Current .............................. 25mA

ESD Rating, Note 3

Human Body Model ................................................... 2kV

Machine Model ........................................................ 200V

Supply Voltage

V

V

Continuous Output Current ................................... 1A to 6A

Ambient Temperature (T

Package Thermal Resistance

TSSOP ................................................................ 85

°C/W

V

Symbol

Parameter

Condition

Min

Typ

Max

Units

V

IN

Switch Input Voltage

V

0.8

5.5

V

V

BIAS

Bias Supply Voltage

1.6

5.5

V

I

BIAS

V

No load

0.1

5

µA

V

No load

300

400

µA

Note 5

V

EN

Enable Input Voltage

V

IL(max)

2.4

1.5

V

V

IH(min)

3.5

2.5

V

V

ENHYST

Enable Input Threshold Hysteresis

100

mV

I

EN

Enable Input Current

V

–1

.01

1

µA

R

DS(ON)

Switch Resistance

V

20

30

m

Ω

I

I

LEAK

Output Leakage Current

Output off

10

µA

CLF

Current Limit Factor

V

300

380

460

A•

Ω

Note 6

1A

≤ I

V

TH

PGREF Threshold

V

215

230

245

mV

V

LATCH

Output Reset Threshold

V

V

V

V

I

LATCH

Latched Output Off Current

Output latched off (MIC2045)

1

3

5

mA

V

OL

Output Low Voltage

I

0.4

V

(/FAULT, PWRGD)

I

I

OFF

/FAULT, PWRGD Off Current

V

1

µA

V

UV

Undervoltage Lockout Threshold

V

1.30

1.45

1.58

V

V

1.20

1.35

1.50

V

V

UVHYST

Undervoltage Lockout

100

mV

Threshold Hysteresis

V

UVINTH

UVLO Adjust Pin Threshold Voltage

V

200

230

260

mV

V

185

215

245

mV

V

UVINHYST

UVLO Adjust Pin Threshold Hysteresis

15

mV

Overtemperature Threshold

T

140

°C

T

120

°C