MIC4467 Micrel Semiconductor, MIC4467 Datasheet

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MIC4467

Manufacturer Part Number
MIC4467
Description
Quad 1.2A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS
Manufacturer
Micrel Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MIC4467CWM
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
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 pack-
age 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 applica-
tions, 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
Logic Diagrams
1A
1B
2A
2B
3A
3B
4A
4B
1
2
3
4
5
6
8
9
MIC4467
GND
7
V
S
14
13
12
11
10
1Y
2Y
3Y
4Y
1A
1B
2A
2B
3A
3B
4A
4B
1
2
3
4
5
6
8
9
MIC4468
GND
5-80
7
V
S
14
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
13
12
11
10
1Y
2Y
3Y
4Y
MIC4467/4468/4469
Bipolar/CMOS/DMOS
1A
1B
2A
2B
3A
3B
4A
4B
1
2
3
4
5
6
8
9
MIC4469
GND
7
V
S
14
13
12
11
10
S
April 1998
1Y
2Y
3Y
4Y
Micrel

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MIC4467 Summary of contents

Page 1

... 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 pack- age 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 ...

Page 2

... They can accept up to half an amp of inductive kickback current (either polarity) into their outputs without damage or logic upset. Truth Table Temp. Range Part No +70 C MIC4467 0 to +70 C (Each Driver) –40 to +85 C –40 to +85 C MIC4468 (Each Driver) MIC4469 ...

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 Input Voltage IH V Logic 0 Input Voltage IL I Input Current ...

Page 5

... MIC4467/4468/4469 Electrical Characteristics: Measured over operating temperature range with 4.5V 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 Voltage OL R Output Resistance O I Peak Output Current PK I Latch-Up Protection Withstand Reverse Current ...

Page 6

... MIC4467/4468/4469 Typical Characteristics Rise and Fall Time vs. Supply Voltage 1000pF 25° SUPPLY VOLTAGE (V) Delay Time vs. Temperature 1000pF 18V -50 - 100 125 ...

Page 7

... PWM SPEED 125 150 GND 5-86 Quiescent Power Supply Current vs. Supply Voltage NO LOAD BOTH INPUTS LOGIC "0" SUPPLY VOLTAGE (V) 90 90% 10% 10% 90% 90% 90 10% 10% MIC4467 Micrel BRUSH MOTOR April 1998 ...

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