L9960T datasheet(44/95 Pages) STMICROELECTRONICS

44 / 95 page

Functional description

L9960, L9960T

44/95

DS11115 Rev 10

The current slew rate control can be disabled and the voltage slew rate can be overwritten

by a faster SR when Tj > OTwarn, ILIM_REG = 1, NOC = 0 or NOSR bit is set.

Note:

(-) available in the D8 bit position in SPI command frame 3.

The NOST configuration is reported by bit "NOSR_echo"

Note:

(-) available in the R9 bit position in SPI answer frame 7a.

Temperature Dependent Slew Rate: When Tj > OTwarn and in case TDSR=1 (TDSR bit

configuration defined below), the current and voltage slew rates are automatically switched

from current configuration mode (SLOW or FAST) to the very fast configuration. In case

TDSR='0' the current SR mode is kept as selected during OTwarn condition.

Note:

(-) available in the D10 bit position in SPI command frame 6.

The TDSR configuration is reported by bit "TDSR_ECHO"

Table 52. NOSR

Bit status

Description

Condition

NOSR mode NOT allowed

Reset value

NOSR mode allowed

Table 53. NOSR_echo

Bit status

Description

Condition

Echo NOSR mode NOT allowed

Default value

Echo NOSR mode allowed

Table 54. TDSR

Bit status

Description

Condition

TDSR mode NOT allowed condition

Default value

TDSR mode allowed

Table 55. TDSR_ECHO

Bit status

Description

Condition

TDSR mode NOT allowed condition

Default value

TDSR mode allowed

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