General Description
The MIC4467/8/9 family of four output CMOS
buffer/drivers is an expansion from the earlier singleand
dual-output drivers, to which they are functionally
closely related. Because package pin count permitted
it, each driver has been equipped with a dual 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 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
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 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.

Features
• Reliable, Low-Power Bipolar/CMOS/DMOS
Construction
• Latch-Up Protected to >500 mA Reverse Current
• Logic Input withstands Swing to –5V
• High 3A Peak Output Current
• Wide 4.5V to 18V Operating Range
• Symmetrical Rise and Fall Times
• Short <40 ns Typical Delay Time
• TTL Logic Input Independent of Supply Voltage
• Low Equivalent 6 pF Input Capacitance
• Low 5Ω Typical Output Impedance
• Output Voltage Swings within 25 mV of Ground or VS.

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