L99UDL01 datasheet(68/88 Pages) STMICROELECTRONICS

68 / 88 page

Programmers guide

L99UDL01

68/88

DS12511 Rev 5

C/PWM_SW_x

The Current PWM Switch bit determines if the output will regulate the motor current directly

or just impose a specific PWM duty cycle (voltage regulation) per the OCPx_y bits above.

As the driving component, the driver is either regulating to a current level or is PWMming to

a specified duty cycle.

This only applies to the 6 internal half bridges. The external half bridges are not PWMmable.

6.2.4

This register sets up the drain source monitoring for the two external half bridges.

This register can be read or written to. All new data programmed into this register will be

acted upon the rising edge of CSN even during a timed actuation.

Three outputs

9.2 A

9.4 A

9.6 A

9.8 A

10 A

10.2 A

10.4 A

10.6 A

10.8 A

11 A

11.2 A

11.4A

11.6 A

11.8 A

12 A

Table 42. Current / duty cycle switch bit description

C/PWM_SW_x

Regulation type

Current Regulation

Voltage Regulation

Table 41. Current bit description (continued)

One output

Two outputs

Three outputs

Sum of 1

only

Current

Sum of 1+2

Current

Sum of

1+2+3

Current

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