TC4404 Datasheet, PDF (1/16 Pages) TelCom Semiconductor, Inc – 1.5A DUAL OPEN-DRAIN MOSFET DRIVERS

M ^{TC4404/TC4405}
1.5A Dual Open-Drain MOSFET Drivers
Features
• Independently Programmable Rise and Fall
Times
• Low Output Impedance – 7Ω Typ.
• High Speed t_R, t_F – <30nsec with 1000pF Load
• Short Delay Times – <30nsec
• Wide Operating Range
- 4.5V to 18V
• Latch-Up Protected: Will Withstand > 500mA
Reverse Current (Either Polarity)
• Input Withstands Negative Swings Up to -5V
Applications
• Motor Controls
• Driving Bipolar Transistors
• Driver for Non-overlapping Totem Poles
• Reach-Up/Reach-Down Driver
Device Selection Table
Part Number
TC4404COA
TC4404CPA
TC4404EOA
TC4404EPA
TC4404MJA
TC4405COA
TC4405CPA
TC4405EOA
TC4405EPA
TC4405MJA
Package
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
8-Pin CERDIP
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
8-Pin CERDIP
Temp. Range
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
General Description
The TC4404/TC4405 are CMOS buffer-drivers
constructed with complementary MOS outputs, where
the drains of the totem-pole output have been left
separated so that individual connections can be made
to the pull-up and pull-down sections of the output. This
allows the insertion of drain-current-limiting resistors in
the pull-up and/or pull-down sections, allowing the user
to define the rates of rise and fall for a capacitive load;
or a reduced output swing, if driving a resistive load, or
to limit base current, when driving a bipolar transistor.
Minimum rise and fall times, with no resistors, will be
less than 30nsec for a 1000pF load.
For driving MOSFETs in motor-control applications,
where slow-ON/fast-OFF operation is desired, these
devices are superior to the previously used technique
of adding a diode-resistor combination between the
driver output and the MOSFET, because they allow
accurate control of turn-ON, while maintaining fast turn-
OFF and maximum noise immunity for an OFF device.
When used to drive bipolar transistors, these drivers
maintain the high speeds common to other Microchip
drivers. They allow insertion of a base current-limiting
resistor, while providing a separate half-output for fast
turn-OFF. By proper positioning of the resistor, either
npn or pnp transistors can be driven.
For driving many loads in low-power regimes, these
drivers, because they eliminate shoot-through currents
in the output stage, require significantly less power at
higher frequencies, and can be helpful in meeting
low-power budgets.
Package Type
V_{DD 1}
IN A 2
IN B 3
GND 4
TC4404
8-Pin PDIP/SOIC/CERDIP
8 A TOP
7 A BOTTOM
6 B TOP
5 B BOTTOM
V_{DD 1}
IN A 2
IN B 3
GND 4
TC4404
8 A TOP
7 A BOTTOM
6 B TOP
5 B BOTTOM
V_{DD 1}
IN A 2
IN B 3
GND 4
TC4405
8 A TOP
7 A BOTTOM
6 B TOP
5 B BOTTOM
V_{DD 1}
IN A 2
IN B 3
GND 4
TC4405
8 A TOP
7 A BOTTOM
6 B TOP
5 B BOTTOM
 2002 Microchip Technology Inc.
DS21418B-page 1