Quad High Current Peripheral DriverThe DS3669 is a non-inverting quad peripheral driver similar
to the DS3658. These drivers are designed for those appli-
cations where low operating power, high breakdown volt-
age, high output current and low output ON voltage are re-
quired. A unique input circuit combines TTL compatibility
with high impedance. In fact, its extreme low input current
allows it to be driven directly by a CMOS device.
The outputs are capable of sinking 600 mA each and offer a
70V breakdown. However, for inductive loads the output
should be clamped to 35V or less to avoid latch-up during
turn off (inductive fly back protectionrefer AN-213). An on-
chip clamp Diode capable of handling 800 mA is provided at
each output for this purpose. In addition, the DS3669 incor-
porates circuitry that guarantees glitch-free power up or
down operation.
The molded package is specifically constructed to allow in-
creased power dissipation over conventional packages. The
four ground pins are directly connected to the device chip
with a special copper lead frame. When the quad driver is
soldered into a PC board, the power rating of the device
improves significantly. By National Semiconductor Corporation
|
|
DS3669 Pb-Free | DS3669 Cross Reference | DS3669 Schematic | DS3669 Distributor |
DS3669 Application Notes | DS3669 RoHS | DS3669 Circuits | DS3669 footprint |