MIC4467 Datasheet, PDF (1/7 Pages) Micrel Semiconductor – Quad 1.2A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS

MIC4467/4468/4469
Micrel
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 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
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
1A ¹
1B ²
2A ³
2B ⁴
3A ⁵
3B ⁶
4A ⁸
4B ⁹
MIC4467
V_S
14
13 _1Y
12 _2Y
11 _3Y
7
GND
10 _4Y
MIC4468
V_S
1A ¹
1B ²
14
13 _1Y
2A ³
2B ⁴
12 _2Y
3A ⁵
3B ⁶
11 _3Y
4A ⁸
4B ⁹
10 _4Y
7
GND
MIC4469
V_S
1A ¹
1B ²
14
13 _1Y
2A ³
2B ⁴
12 _2Y
3A ⁵
3B ⁶
11 _3Y
4A ⁸
4B ⁹
10 _4Y
7
GND
5-80
April 1998