mic4468 Micrel Semiconductor, mic4468 Datasheet

mic4468

Manufacturer Part Number

mic4468

Description

Quad 1.2a-peak Low-side Mosfet Driver Bipolar/cmos/dmos

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC4468.pdf (8 pages)

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MIC4467/4468/4469

General Description

The MIC4467/8/9 family of 4-output CMOS buffer/drivers is an

expansion from the earlier single- and dual-output drivers, to

which they are functionally closely related. Because package

pin count permitted it, each driver has been equipped with a

2-input logic gate for added ﬂexibility. Placing four high-power

drivers in a single package also improves system reliability

and reduces total system cost. In some applications, one of

these drivers can replace not only two packages of single-

input drivers, but some of the associated logic as well.

Although primarily intended for driving power MOSFETs,

and similar highly capacitive loads, these drivers are equally

well suited to driving any other load (capacitive, resistive, or

inductive), which requires a high-efﬁciency, low-impedance

driver capable of high peak currents, rail-to-rail voltage swings,

and fast switching times. For example, heavily loaded clock

lines, coaxial cables, and piezoelectric transducers can all be

driven easily with MIC446X series drivers. The only limitation

Logic Diagrams

July 2005

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

MIC4467

GND

MIC4468

GND

Features

•

Applications

•

Quad 1.2A-Peak Low-Side MOSFET Driver

Built using reliable, low power CMOS processes

Latchproof. Withstands 500mA Inductive Kickback

3 Input Logic Choices

Symmetrical Rise and Fall Times ............................25ns

Short, Equal Delay Times .......................................75ns

High Peak Output Current ....................................... 1.2A

Wide Operating Range .................................. 4.5 to 18V

Low Equivalent Input Capacitance (typ) .................. 6pF

Inputs = Logic 1 for Any Input From 2.4V to V

ESD Protected

General-Purpose CMOS Logic Buffer

Driving All 4 MOSFETs in an H-Bridge

Direct Small-Motor Driver

Relay or Peripheral Drivers

Dual Differential Output Power Drivers

CCD Driver

Pin-Switching Network Driver

MIC4467/4468/4469

Bipolar/CMOS/DMOS

MIC4469

GND

MIC4467/4468/4469

Micrel, Inc.

Related parts for mic4468

mic4468 Summary of contents

Page 1

... Applications • General-Purpose CMOS Logic Buffer • Driving All 4 MOSFETs in an H-Bridge • Direct Small-Motor Driver • Relay or Peripheral Drivers • Dual Differential Output Power Drivers • CCD Driver • Pin-Switching Network Driver MIC4468 ...

Page 2

... MIC44xxYN* –40°C to +85°C MIC44xxBWM* MIC44xxYWM* –40°C to +85° identiﬁes input logic: 67 — NAND 68 — AND 69 — AND with 1 inverting input **Pb-Free industrial grade PDIP available in MIC4468 & MIC4469 only. Pin Conﬁgurations 14-Pin DIP ( ...

Page 3

... MIC4467/4468/4469 Block Diagrams MIC4467 Functional Diagram for One Driver (Four Drivers per Package–Ground Unused Inputs) MIC4468 Functional Diagram for One Driver (Four Drivers per Package–Ground Unused Inputs) MIC4469 Functional Diagram for One Driver (Four Drivers per Package–Ground Unused Inputs) ...

Page 4

MIC4467/4468/4469 Absolute Maximum Ratings Supply Voltage Input Voltage (GND – 5V Maximum Chip Temperature Operating Storage Maximum Load Temperature (10 sec, for soldering) Operating Ambient Temperature C Version B Version Electrical Characteristics: Symbol Parameter INPUT V Logic 1 ...

Page 5

MIC4467/4468/4469 Electrical Characteristics: Measured over operating temperature range with 4.5V ≤ V Symbol Parameter INPUT V Logic 1 Input Voltage IH V Logic 0 Input Voltage IL I Input Current IN OUTPUT V High Output Voltage OH V Low Output ...

Page 6

MIC4467/4468/4469 Typical Characteristics Rise and Fall Time vs. Supply Voltage 1000pF 25° SUPPLY VOLTAGE (V) Delay Time vs. ...

Page 7

MIC4467/4468/4469 Quiescent Power Supply Current vs. Supply Voltage 2.5 2.0 1.5 1.0 0 SUPPLY VOLTAGE (V) Test Figure µF FILM 0.1 µF CERAMIC ...

Page 8

MIC4467/4468/4469 Package Information .215 (5.461) (4.064) .100 (2.540) 0.297 (7.544) 0.031 (0.787) 0.090 (2.286) MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed ...

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