MIC4467/4468/4469
Micrel, Inc.
MIC4467/4468/4469
Quad 1.2A-Peak Low-Side MOSFET Driver
Bipolar/CMOS/DMOS
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
Features
•
•
•
•
•
•
•
•
•
•
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
S
ESD Protected
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
Logic Diagrams
MIC4467
V
S
14
MIC4468
V
S
14
MIC4469
V
S
14
13
12
11
10
1A
1B
2A
2B
3A
3B
4A
4B
1
2
3
4
5
6
8
9
7
13
12
11
10
1Y
2Y
3Y
4Y
1A
1B
2A
2B
3A
3B
4A
4B
1
2
3
4
5
6
8
9
7
1Y
2Y
3Y
4Y
1A
1B
2A
2B
3A
3B
4A
4B
1
2
3
4
5
6
8
9
7
13
12
11
10
1Y
2Y
3Y
4Y
GND
GND
GND
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
July 2005
1
MIC4467/4468/4469
MIC4467/4468/4469
on loading is that total power dissipation in the IC must be
kept within the power dissipation limits of the package.
The MIC446X series drivers are built using a BCD process.
They will not latch under any conditions within their power
and voltage ratings. They are not subject to damage when up
Micrel, Inc.
to 5V of noise spiking (either polarity) occurs on the ground
line. They can accept up to half an amp of inductive kickback
current (either polarity) into their outputs without damage or
logic upset.
Ordering Information
Part Number
Standard
MIC44xxCN*
MIC44xxCWM*
MIC44xxBN*
MIC44xxBWM*
Pb-Free
MIC44xxZN*
MIC44xxZWM*
MIC44xxYN*
MIC44xxYWM*
Temperature
Range
0°C to +70°C
0°C to +70°C
–40°C to +85°C
–40°C to +85°C
Package
14-pin Plastic DIP
16-pin Wide SOIC
14-pin Plastic DIP
16-pin Wide SOIC
Truth Table
Part No.
MIC4467
(Each Driver)
MIC4468
(Each Driver)
MIC4469
(Each Driver)
A
L
X
H
H
L
X
L
X
H
Inputs
B
X
L
H
H
X
L
X
H
L
Output
Y
H
H
L
H
L
L
L
L
H
* xx 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 (N)
1A 1
1B 2
2A 3
2B 4
3A 5
3B 6
GND 7
14 V
S
13 1Y
12 2Y
11 3Y
10 4Y
9
8
4B
4A
16-Pin Wide SOIC (WM)
1A
1B
2A
2B
3A
3B
GND
GND
1
2
3
4
5
6
7
8
16
15
14
V
S
V
S
1Y
2Y
3Y
4Y
4B
4A
13
12
11
10
9
TOP VIEW
TOP VIEW
MIC4467/4468/4469
2
July 2005
MIC4467/4468/4469
Micrel, Inc.
Absolute Maximum Ratings
(Notes 1 and 2)
Supply Voltage
22V
Input Voltage
(GND – 5V) to (V
S
+ 0.3V)
Maximum Chip Temperature
Operating
150°C
Storage
–65° to +150°C
Maximum Load Temperature
(10 sec, for soldering)
300°C
Operating Ambient Temperature
C Version
0° to +70°C
B Version
–40° to +85°C
Power Dissipation
N Package (14-Pin Plastic DIP)
WM Package (16-Pin Wide SOIC)
Package Thermal Resistance
N Package (14-Pin Plastic DIP)
θ
JA
WM Package (16-Pin Wide SOIC)
θ
JA
1.5W
1W
80°C/W
120°C/W
Electrical Characteristics:
Symbol
INPUT
V
IH
V
IL
I
IN
OUTPUT
V
OH
V
OL
R
O
I
PK
I
High Output Voltage
Low Output Voltage
Output Resistance
Peak Output Current
Logic 1 Input Voltage
Logic 0 Input Voltage
Input Current
Parameter
Measured at T
A
= 25°C with 4.5V ≤ V
S
≤ 18V unless otherwise specified. (Note
3)
Conditions
Min
Typ
Max
Units
2.4
1.3
1.2
0.8
1
V
V
µA
0 ≤ V
IN
≤ V
S
–1
I
LOAD
= 10mA
I
LOAD
= 10mA
I
OUT
= 10mA, V
S
= 18V
V
S
-0.15
0.15
5
1.2
>500
15
V
V
Ω
A
mA
Latch-Up Protection
Withstand Reverse Current
SWITCHING TIME
t
R
t
F
t
D1
t
D2
Rise Time
Fall Time
Delay Time
Delay Time
Test Figure 1
Test Figure 1
Test Figure 1
Test Figure 1
14
13
30
45
25
25
75
75
ns
ns
ns
ns
POWER SUPPLY
I
S
Note 3.
Power Supply Current
Supply
Specification for packaged product only.
0.2
4
mA
MIC4467/4468/4469
4
July 2005
PCB设计
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