MIC4421ABM Micrel Inc, MIC4421ABM Datasheet

MIC4421ABM

Manufacturer Part Number

MIC4421ABM

Description

IC DRIVER MOSFET 9A LS 8-SOIC

Manufacturer

Micrel Inc

Datasheet

1.MIC4421AZM.pdf (13 pages)

Specifications of MIC4421ABM

Configuration

Low-Side

Input Type

Inverting

Delay Time

15ns

Current - Peak

Number Of Configurations

Number Of Outputs

Voltage - Supply

4.5 V ~ 18 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width)

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

High Side Voltage - Max (bootstrap)

Current page: 1 of 13
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General Description

MIC4421A and MIC4422A MOSFET drivers are rugged,

efficient, and easy to use. The MIC4421A is an inverting

driver, while the MIC4422A is a non-inverting driver.

Both versions are capable of 9A (peak) output and can

drive the largest MOSFETs with an improved safe

operating margin. The MIC4421A/4422A accepts any logic

input from 2.4V to V

or resistor networks. Proprietary circuits allow the input to

swing negative by as much as 5V without damaging the

part. Additional circuits protect against damage from

electrostatic discharge.

MIC4421A/4422A drivers can replace three or more

discrete components, reducing PCB area requirements,

simplifying product design, and reducing assembly cost.

Modern Bipolar/CMOS/DMOS construction guarantees

freedom from latch-up. The rail-to-rail swing capability of

CMOS/DMOS insures adequate gate voltage to the

MOSFET during power up/down sequencing. Since these

devices are fabricated on a self-aligned process, they have

very low crossover current, run cool, use little power, and

are easy to drive.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

___________________________________________________________________________________________________________

Typical Application

June 2007

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

without external speed-up capacitors

+15V

1µF

Off

0.1µF

Low-Side Power Switch

MIC4422A

GND

OUT

4,5

* Siliconix 30m, 7A max.

†

Voltage

Load voltage limited by MOSFET drain-to-source rating

Features

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

• Wide operating range: 4.5V to 18V (typ.)

• Minimum pulse width: 50ns

• Latch-up proof: fully isolated process is inherently

• Input will withstand negative swing of up to 5V

• High capacitive load drive: 47,000pF

• Low delay time: 15ns (typ.)

• Logic high input for any voltage from 2.4V to V

• Low equivalent input capacitance: 7pF (typ.)

• Low supply current: 500µA (typ.)

• Output voltage swing to within 25mV of GND or V

Applications

• Switch mode power supplies

• Motor controls

• Pulse transformer driver

• Class-D switching amplifiers

• Line drivers

• Driving MOSFET or IGBT parallel chip modules

• Local power ON/OFF switch

• Pulse generators

408

Load

immune to any latch-up

) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Si9410DY*

N-Channel

MOSFET

9A Peak Low-Side MOSFET Driver

Bipolar/CMOS/DMOS Process

MIC4421A/4422A

M9999-062707

Related parts for MIC4421ABM

MIC4421ABM Summary of contents

Page 1

... Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. ___________________________________________________________________________________________________________ Typical Application +15V Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( June 2007 Features • High peak-output current: 9A Peak (typ.) • Wide operating range: 4.5V to 18V (typ.) • ...

Page 2

... Micrel, Inc. Ordering Information Part Number Standard Pb-Free MIC4421AAM* MIC4421ABM MIC4421AYM MIC4421ACM MIC4421AZM MIC4421ABN MIC4421AYN MIC4421ACN MIC4421AZN MIC4421ACT MIC4421AZT MIC4422AAM* MIC4422ABM MIC4422AYM MIC4422ACM MIC4422AZM MIC4422ABN MIC4422AYN MIC4422ACN MIC4422AZN MIC4422ACT MIC4422AZT * Special order. Contact factory. Pin Configuration GND 8-Pin PDIP (N) 8-Pin SOIC (M) ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V )......................................................+20V S Control Input Voltage (V ). ............. V IN Control Input Current (V > .................................50mA IN S (4) Power Dissipation, T < +25°C A PDIP (θ ) ........................................................1478mW JA ...

Page 4

Micrel, Inc. Symbol Parameter Switching Time (Note 5) continued t Delay Time D2 t Minimum Input Pulse Width PW f Maximum Input Frequency max Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not ...

Page 5

Micrel, Inc. Typical Characteristics June 2007 5 MIC4421A/4422A M9999-062707 ...

Page 6

Micrel, Inc. Typical Characteristics (continued) June 2007 6 MIC4421A/4422A M9999-062707 ...

Page 7

Micrel, Inc. Functional Diagram 0.1mA IN Functional Description Refer to the functional diagram. The MIC4422A is a non-inverting driver. A logic high on the IN produces gate drive output. The MIC4421A is an inverting driver. A logic low on the ...

Page 8

Micrel, Inc. Application Information Supply Bypassing Charging and discharging large capacitive loads quickly requires large currents. For example, charging a 10,000pF load to 18V in 50ns requires 3.6A. The MIC4421A/4422A has double bonding on the supply pins, the ground pins ...

Page 9

Micrel, Inc. Input Stage The input voltage level of the MIC4421A changes the quiescent supply current. The N-Channel MOSFET input stage transistor drives a 320µA current source load. With a logic “1” input, the quiescent supply current is typically 500µA. ...

Page 10

Micrel, Inc. Table 1. MIC4421A Maximum Operating Frequency V S 18V 15V 10V 5V Conditions: θ 150°C 25° 10,000pF L Capacitive Load Power Dissipation Dissipation caused by a capacitive load ...

Page 11

Micrel, Inc Power dissipated in a driver when the output T changes states (“shoot-through current”) in Watts. NOTE: The “shoot-through” current from a dual transition (once up, once down) for both drivers is stated in Figure 7 in ...

Page 12

Micrel, Inc. Package Information 0.018 (0.57) June 2007 PIN 1 DIMENSIONS: INCH (MM) 0.380 (9.65) 0.370 (9.40) 0.135 (3.43) 0.125 (3.18) 0.380 (9.65) 0.130 (3.30) 0.320 (8.13) 0.100 (2.54) 0.0375 (0.952) 8-Pin Plastic DIP (N) 8-Pin SOIC (M) 12 MIC4421A/4422A ...

Page 13

Micrel, Inc. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...

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