PRELIMINARY DATA SHEET
IXDD404PI / 404SI / 404SIA / 404SI-16
4 Amp Dual Low-Side Ultrafast MOSFET Driver
Features
• Built using the advantages and compatibility
of CMOS and IXYS HDMOS
TM
processes
• Latch-Up Protected
• High Peak Output Current: 4A Peak
• Wide Operating Range: 4.5V to 25V
• Ability to Disable Output under Faults
• High Capacitive Load
Drive Capability: 1800pF in <15ns
• Matched Rise And Fall Times
• Low Propagation Delay Time
• Low Output Impedance
• Low Supply Current
• Two identical drivers in single chip
General Description
The IXDD404 is comprised of two 4 Amp CMOS high speed
MOSFET drivers. Each output can source and sink 4 A of
peak current while producing voltage rise and fall times of less
than 15ns to drive the latest IXYS MOSFETS & IGBT's. The
input of the driver is compatible with TTL or CMOS and is fully
immune to latch up over the entire operating range. Designed
with small internal delays, cross conduction/current shoot-
through is virtually eliminated in the IXDD404. Improved speed
and drive capabilities are further enhanced by very low,
matched rise and fall times.
Additionally, each driver in the IXDD404 incorporates a unique
ability to disable the output under fault conditions. When a
logical low is forced into the Enable input of a driver, both of it's
final output stage MOSFETs (NMOS and PMOS) are turned
off. As a result, the respective output of the IXDD404 enters a
tristate mode and achieves a Soft Turn-Off of the MOSFET/
IGBT when a short circuit is detected. This helps prevent
damage that could occur to the MOSFET/IGBT if it were to be
switched off abruptly due to a dv/dt over-voltage transient.
The IXDD404 is available in the standard 8 pin P-DIP (PI),
SOP-8 (SI -with metal tab), SOP-8 (SIA -without metal tab) and
SOP-16 (SI-16) packages.
Applications
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Driving MOSFETs and IGBTs
Limiting di/dt under Short Circuit
Motor Controls
Line Drivers
Pulse Generators
Local Power ON/OFF Switch
Switch Mode Power Supplies (SMPS)
DC to DC Converters
Pulse Transformer Driver
Class D Switching Amplifiers
Figure 1 - Functional Diagram
Vcc
200k
ENA
OUTA
INB
200k
ENB
OUTB
GND
Copyright © IXYS CORPORATION 2001
First Release
IXYS [ IXYS CORPORATION ]
