Features

• Built using the advantages and compatibility

• 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

Applications

• Driving MOSFETs and IGBTs

• Limiting di/dt under Short Circuit

• Motor Controls

• LineDrivers

• Pulse Generators

• Local Power ON/OFF Switch

• Switch Mode Power Supplies (SMPS)

• DC to DC Converters

• PulseTransformerDriver

• Class D Switching Amplifiers

PRELIMINARY DATA SHEET

IXDD404PI / 404SI / 404SIA / 404SI-16

4 Amp Dual Low-Side Ultrafast MOSFET Driver

First Release

Copyright © IXYS CORPORATION 2001

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.

Figure 1 - Functional Diagram

INB

ENA

ENB

OUTA

OUTB

200k

200k

GND

Vcc