MIC2342R datasheet(9/32 Pages) MICREL

9 / 32 page

Micrel, Inc.

MIC2342/2342R

June 2008

M9999-062008-A

Absolute Maximum Ratings

(1)

12VIN[A/B], 12VSENSE[A/B], 12VGATE[A/B],

12VOUT[A/B] .....................................................14V

3VIN[A/B], 3VSENSE[A/B], 3VGATE[A/B],

3VOUT[A/B], VSTBY[A/B], VAUX[A/B] .......................7V

Digital Inputs

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

/FORCE_ON[A/B] ..................–0.5V (min) to 3.6V (max)

CFILTER[A/B], RFILTER[A&B] ...................................7V

Output Current

/PWRGD[A/B], /DLY_PWRGD[A/B]

/FAULT_MAIN[A/B], SYSPWRGD, /INT,

/FAULT_AUX[A/B]

10mA

Power Dissipation ................................Internally Limited

Lead Temperature (Soldering)

Lead-Free Package (-xYTQ)

IR Reflow, Peak ..................................260°C +0°C/–5°C

Storage Temperature ...........................–65°C to +150°C

ESD Rating

(3)

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

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

Operating Ratings

(2)

Supply Voltages

12VIN[A/B].........................................11.0V to 13.0V

3VIN[A/B]...............................................3.0V to 3.6V

VSTBY[A/B]...........................................3.0V to 3.6V

Ambient Temperature (TA)........................ 0°C to + 70°C

Junction Temperature (TJ) .................................... 125°C

Package Thermal Resistance

TQFP

(θJA)................................................. 76.8°C/W

Electrical Characteristics

(4)

12VIN[A/B] = 12V, 3VIN[A/B] = 3.3V, VSTBY[A/B] = 3.3V, TA = 25°C, unless otherwise noted. Bold values specifications applies

over the full operating temperature range from 0 °C < TA < +70 °C.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Power Control and Logic Sections

ICC12

ICC3.3

ICCSTBY

Supply Current

/CRSW[A/B] = LOW

/FORCE_ON[A/B] = HIGH

AUX_EN[A/B], ON[A/B] = [L,H], [L,L]

1.8

0.6

2.8

2.5

VUVLO(12V)

VUVLO(3V)

VUVLO(STBY)

Undervoltage Lockout Thresholds

12VIN[A/B]

3VIN[A/B]

VSTBY[A/B]

12VIN[A/B] increasing

3VIN[A/B] increasing

VSTBY[A/B] increasing

2.2

2.8

2.5

2.9

2.75

3.0

VHYSSTBY

Undervoltage Lockout Hysteresis

VSTBY[A/B]

VHYSUV

Undervoltage Lockout Hysteresis

12VIN[A/B], 3VIN[A/B]

180

VUVTH(12V)

VUVTH(3V)

Power-Good Undervoltage

Thresholds

12VOUT[A/B]

3VOUT[A/B]

12VOUT[A/B] decreasing

3VOUT[A/B] decreasing

10.2

2.7

10.5

2.8

10.8

2.9

VUVTH(VAUX)

Power-Good Undervoltage

Threshold

VAUX[A/B]

VAUX[A/B] decreasing

IAUX = 600mA

2.7

2.8

2.9

VHYSPG

Power-Good Detect Hysteresis

VGATE(12V)

12VGATE[A/B] Voltage

1.5

IGATE(12VSINK)

12VGATE[A/B] Pull-down Current

Start Cycle

µA

IGATE(12VPULLUP)

12VGATE[A/B] Pull-up Current

(Fault Off)

Any fault condition

(VDD –VGATE) = 2.5V

MIC2342R Datasheet(PDF) 9 Page - Micrel Semiconductor

MIC2342R Datasheet(HTML) 9 Page - Micrel Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Datasheet Download

Link URL