SABRE-LL-I datasheet(48/141 Pages) STMICROELECTRONICS

номер детали	SABRE-LL-I

подробное описание детали	Combo motor driver

PDF	141 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

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Power bridges

SABRE-LL-I

48/141

two half bridges are configured as a full bridge, only the PWM signal chosen for side A will

be used to drive the resulting H bridge.

More in detail the PWM selection truth table will be as describe in the following tables:

Here below is reported a block diagram representing the possible PWM choices for each

S.A.B.Re half bridges. The figure is related only to bridges 1 and 2, but it could be assumed

to be valid also for bridges 3 and 4, with few differences due to different possible

configurations of these last drivers.

Table 27.

PWM selection truth for bridge 1 or 2

MtrXSelPWMSideY [1] MtrXSelPWMSideY [0]

Selected PWM(1)

In this table X stands for 1 or 2, Y stands for A or B.

MotorXPWM (Configurable by means of MtrXCfg

AuxXPWM (Configurable by means of

AuxPwmXCtrl register).

ExtPWM1 (from GPIO 9 input)

ExtPWM2 (from GPIO 10 input)

Table 28.

PWM selection truth for bridge 3 or 4

MtrXSelPWMSideY [1] MtrXSelPWMSideY [0]

Selected PWM(1)

In this table X stands for 3 or 4, Y stands for A or B.

MotorXPWM (Configurable by means of

MtrXCfg register).

AuxXPWM (Configurable by means of

AuxPwmXCtrl register).

ExtPWM3 (from GPIO 2 input)

ExtPWM4 (from GPIO 11 input)

SABRE-LL-I датащи(PDF) 48 Page - STMicroelectronics