BTS6480SF datasheet(30/73 Pages) INFINEON

tên linh kiện	BTS6480SF

Giải thích chi tiết về linh kiện	SPI Power Controller

PDF	73 Pages

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Data Sheet

Rev. 1.0, 2010-04-12

SPOC - BTS6480SF

Automatic PWM Generator

Figure 9

Phase Shifts between Devices

7.5.2

How to resynchronize a Reset SPOC

In case of a reset SPOC device or a SPOC device in stand-by mode the synchronization can be done as follows:

•

Set the PWM frequencies, duty cycles, phase shifts of the reset device

•

Set the device phase shift for the reset SPOC device

•

Deactivate the automatic PWM generation of all SPOC devices in this daisy chain

•

With the next SPI transmission activate the automatic PWM generator of all SPOC devices by setting PCR.PST

within one MCS-frame

•

Activate the channels of the reset SPOC device via the SPI register OUT.OUTn

With the next rising edge of the PWM clock signal

PWM the automatic PWM generation will start again

synchronously.

PCLK

PCR.PST

OUT0

OUT.OUT0

DevicePhaseShift.emf

OUT0

Dev. phase shift1

PCR.PST

PWM0

OUT1

Dev. phase shift1

Ch. phase shift1

PWM1

Device 1

Device 2

OUT.OUT1

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