MIC2593

Micrel

M9999-042204

8

April 2004

Symbol

Parameter

Condition

Min

Typ

Max

Units

V

THILIMIT

Current Limit Threshold Voltage

5V[A/B] Supplies

V

35

50

65

mV

3.3V[A/B] Supplies

V

35

50

65

mV

V

THFAST

Fast-Trip Current Limit Thresholds

5V[A/B] and 3V[A/B]

MIC2593-2BTQ

90

113

135

mV

MIC2593-5BTQ

Disabled

I

5VSENSE[A/B]

5VSENSE[A/B] Input Current

V

(6)

0.5

µA

I

3VSENSE[A/B]

3VSENSE[A/B] Input Current

V

(6)

0.5

µA

V

IL

LOW-Level Input Voltage

0.8

V

ON[A/B], AUXEN[A/B], GPI[A/B],

SCL, SDA, A[0-2]

V

OL

Output LOW Voltage

I

0.4

V

/FAULT[A/B], /INT, SDA

V

IH

HIGH-Level Input Voltage

2.1

V

ON[A/B], AUXEN[A/B], GPI[A/B],

SCL, SDA, A[0-2]

R

PULL-UP

Internal Pullups from A[0-2] to V

STBY

40

k

Ω

I

LKG,OFF(12VIN[A/B])

12VIN[A/B] Input Leakage Current

V

1

µA

12V

(6)

I

LKG,OFF(12MVIN[A/B])

12MVIN[A/B] Input Leakage Current

V

60

µA

12MV

(6)

I

LKG,OFF(5VIN[A/B])

5VIN[A/B] Input Leakage Current

V

200

µA

5V

(6)

I

LKG,OFF(3VIN[A/B])

3VIN[A/B] Input Leakage Current

V

1

µA

3V

(6)

I

IL

Input Leakage Current

µA

SCL, ON[A/B], AUXEN[A/B], GPI[A/B]

I

LKG(OFF)

Off-State Leakage Current

µA

SDA, /FAULT[A/B], /INT

T

OV

Overtemperature Shutdown & Reset

T

(7)

140

°C

Thresholds, with Overcurrent on Slot

T

(7)

130

°C

Overtemperature Shutdown & Reset

T

(7)

160

°C

Thresholds, all Other Conditions

T

(7)

150

°C

(All Outputs will Latch OFF)

Output MOSFET Resistance

R

ON(12V)

+12V MOSFET

I

500

m

Ω

R

ON(12MV)

–12V MOSFET

I

2

Ω

VAUX MOSFET

I

400

m

Ω

Off-State Output Offset Voltage

V

OFF(12V)

12VOUT[A/B]

12V

50

mV

V

OFF(12MV)

12MVOUT[A/B]

12MV

–50

mV

VAUX[A/B]

V

50

mV

Current Limit Slow Trip Threshold

I

LIM(12V)

+12V MOSFET

12V

0.52

1.0

1.5

A

–12V MOSFET

12MV

–0.11

–0.2

–0.3

A

Current Limit Fast-Trip Threshold

MIC2593-2BTQ

I

FASTLIM(12V)

+12V MOSFET

12V

1.0

2.15

3.0

A

I

FASTLIM(12MV)

–12V MOSFET

12MV

–0.20

–0.45

–0.6

A

Notes:

5.

Specification for packaged product only.

6.

Schottky diode clamp used for –12VIN[A/B] power bus. See the typical applications circuit.

7.

Parameters guaranteed by design. Not 100% production tested.