99026 Ver la hoja de datos (PDF) - IXYS CORPORATION

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componentes Descripción

Fabricante

99026

HALF BRIDGE DRIVER Evaluation Board

IXYS CORPORATION 

EVBD4400

In Figures 4 & 5, the schematic assumes the de-

signer will be using some type of external control system

for starting the circuit and/or reseting the circuit in the

event a fault occures. As an alternative, Figure 6

demonstrates a simple and inexpensive Start/Reset logic

circuit for manually implementing fault protection.

With the addition of High Current MOSFET Drivers on

the outputs, the IXBD4410/11's typical 2A Peak Output

Current capability can be "boosted" to drive the latest

IXYS MOSFETS & IGBT's.

Figure 6 shows the addition of two IXDD414's.

These are CMOS high-speed MOSFET drivers that

have a 14A Peak Output Drive Capability, allowing the

4410/11 chipset to drive a pair of IXFK90N20Q 90A/

200V Power Mosfets. (The 2 ohm gate resistors

shown should be Non-Inductive High Performance Film

resistors such at those available from Caddock. Par-

ticular attention also needs to be paid to Suppy By-

passing, Grounding, and minimizing the Output Lead

Inductance when designing such a high power circuit

layout).

Vcc

FLT Reset

10K

.01uF

74HC00 3/4

INH 9

8

10

74HC00 4/4

INL 12

11

13

74HC00 1/4

1

3

2

74HC04 2/6

34

74HC04 1/6

12

To Eval bd INH

To Eval bd INL

(From FLT) (n.h.)

Vcc

10K

.01uF

74HC00 2/4

4

6

5

Figure 6: Simple Fault Protection Logic Circuit

7

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