MIC4421ACT datasheet(3/13 Pages) MIC

Part #	MIC4421ACT

Description	High peak-output current: 9A Peak (typ.)

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Manufacturer	MIC [MIC GROUP RECTIFIERS]

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Micrel, Inc.

MIC4421A/4422A

June 2007

3

M9999-062707

Absolute Maximum Ratings

(1)

Supply Voltage (VS)......................................................+20V

Control Input Voltage (VIN). ............. VS + 0.3V to GND – 5V

Control Input Current (VIN > VS). .................................50mA

Power Dissipation, TA < +25°C

(4)

PDIP (

θJA) ........................................................1478mW

SOIC (

θJA) ..........................................................767mW

TO-220 (

θJA)........................................................1756W

Lead Temperature (soldering, #sec.)......................... 300°C

Storage Temperature (Ts) .........................–65°C to +150°C

ESD Rating

(3).................................................................. 2kV

Operating Ratings

(2)

Supply Voltage (VS)....................................... +4.5V to +18V

Ambient Temperature (TA)

A Version ............................................ –55°C to +125°C

B Version .............................................. –40°C to +85°C

C Version .................................................. 0°C to +70°C

Junction Temperature (TJ) ......................................... 150°C

Package Thermal Resistance

(4)

PDIP (

θJA) .......................................................84.6°C/W

SOIC (

θJA).....................................................163.0°C/W

TO-220 (

θJA)....................................................71.2°C/W

PDIP (

θJC) .......................................................41.2°C/W

SOIC (

θJC).......................................................38.8°C/W

TO-220 (

θJC) .....................................................6.5°C/W

Electrical Characteristics

TA = 25°C with 4.5V ≤ VS ≤ 18V, bold values indicate –55°C< TA < +125°C, unless noted.

Symbol

Parameter

Condition

Min

Typ

Max

Units

Power Supply

VS

Operating Input Voltage

4.5

18

V

High Output Quiescent Current

VIN = 3V (MIC4422A), VIN = 0 (MIC4421A)

0.5

1.5

3

mA

IS

Low Output Quiescent Current

VIN = 0V (MIC4422A), VIN = 3V (MIC4421A)

50

150

200

µA

Input

VIH

Logic 1 Input Voltage

See Figure 3

3.0

2.1

V

VIL

Logic 0 Input Voltage

See Figure 3

1.5

0.8

V

VIN

Input Voltage Range

–5

VS+0.3

V

IIN

Input Current

0V ≤ VIN ≤ VS

–10

10

µA

Output

VOH

High Output Voltage

See Figure 1

VS+.025

V

VOL

Low Output Voltage

See Figure 1

0.025

V

Output Resistance,

Output High

IOUT = 10mA, VS = 18V

0.6

1.0

3.6

Ω

RO

Output Resistance,

Output Low

IOUT = 10mA, VS = 18V

0.8

1.7

2.7

Ω

IPK

Peak Output Current

VS = 18V (See Figure 8)

9

A

IDC

Continuous Output Current

2

A

IR

Latch-Up Protection

Withstand Reverse Current

Duty Cycle ≤ 2%

t ≤ 300µs, Note 5

>1500

mA

Switching Time (Note 5)

tR

Rise Time

Test Figure 1, CL = 10,000pF

20

75

120

ns

tF

Fall Time

Test Figure 1, CL = 10,000pF

24

75

120

ns

tD1

Delay Time

Test Figure 1

15

68

80

ns

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