BTS6480SF datasheet(19/73 Pages) INFINEON

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SPOC - BTS6480SF

Power Stages

Data Sheet

Rev. 1.0, 2010-04-12

6.2.1

Input Direct Drive

This mode is the default after the device’s wake up and reset. The input pins activate the channels during normal

operation (with default setting of bit IECR.INCG), stand-by mode and limp home mode. Channel 0 and the

external drivers can be activated only via the SPI-bit OUT.OUTn in direct drive mode. The inputs are linked directly

to the channels according to:

6.2.2

Input Assigned Drive

To activate the assigned drive function the register bit IECR.INCG needs to be set. In this mode all output

channels can be activated via the input pins. Channel 2, 3 and the two external drivers are assigned to only one

input pin. The following mapping is used:

6.3

Power Stage Output

The power stages are built to be used in high side configuration (Figure 6).

Figure 6

Power Stage Output

The power DMOS switches with a dedicated slope, which is optimized in terms of EMC emission. Defined slew

rates and edge shaping allow lowest EMC emissions during PWM operation at low switching losses.

Table 1

Direct Drive Mode

Input Pin

Assigned channel, if IECR.INCG = 0

IN1

Channel 1

IN2

Channel 2

IN3

Channel 3

Table 2

Assigned Drive Mode

Input Pin

Assigned channel, if IECR.INCG = 1

IN1

Channel 0

IN2

Channel 1

IN3

Channel 2, channel 3, external driver 0, external driver 1

Output.emf

OUT

GND

OUT

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