1EDI2004AS Ver la hoja de datos (PDF) - Infineon Technologies

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Fabricante

1EDI2004AS

High Voltage IGBT Driver for Automotive Applications

Infineon Technologies 

EiceDRIVERTM SIL

1EDI2004AS

Functional Description

2.4

Functional Block Description

2.4.1 Power Supplies

On the primary side, the 1EDI2004AS needs a single 5Vsupply source VCC1 for proper operation. This makes the

device compatible to most of the microcontrollers available for automotive applications.

On the secondary side, the 1EDI2004AS needs two power supplies for proper operation.

• The positive power supply VCC2 is typically set to 16.5 V (referring to VGND2).

• The negative supply VEE2 is typically set to -4 V or 0V (referring to VGND2).

Under- and over-voltage monitoring is performed continuously during operation of the device (see

Chapter 3.3.1).

A 5V supply for the digital domain on the secondary side is generated internally (present at pin VREG).

2.4.2 Clock Domains

The clock system of the 1EDI2004AS is based on three oscillators defining each a clock domain:

• One RC oscillator (OSC1) for the primary chip.

• One RC oscillator (OSC2) for the secondary chip excepting the output stage.

• One Start-Stop oscillator (SSOSC2) for the output stage on the secondary side.

The two RC oscillators are running constantly. They are also monitored constantly, and large deviations from

the nominal frequency are identified as a system failure (Event Class B, see Chapter 3.3).

The Start Stop oscillator is controlled by the PWM command.

Data Sheet

18

Rev. 2.0

2019-01-16

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