L9960 datasheet(68/95 Pages) STMICROELECTRONICS

68 / 95 page

Functional description

L9960, L9960T

68/95

DS11115 Rev 10

Note:

(-) available in the R6,R5,R4 bit position in SPI command frame 3.

Validity echo bit time programming status of Tdiag1:

Note:

(-) available in the R6,R5,R4 bit position in SPI answer frame 7a.

Validity bit time programming Tdiag2:



Tdiag2 is the blanking time when the MOS is involved for the current limitation (not

belonging to the free wheel).

Overcurrent diagnostic reset

The overcurrent diagnostics bit can be cleared by means of one of the following conditions:



Power On Reset sequence



Transition from "Disable" to "Enable" on the pin DIS,



Diagnostic register read by SPI (in case bit "DIAG_CLR_EN" = 1).

Note:

if several diagnostics are performed between two SPI reads, the over-current diagnostic bits

can only be overwritten if the new diagnostic has a higher priority than the one already

stored in the register.

101

110

111

Reset value

Table 79. TDIAG1 (µs) (continued)

3-bit config combination

Description

Condition

Table 80. TDIAG1_echo[2:0]

3-bit status combination

Description

Condition

000

echo 9 µs config

001

echo 14 µs config

010

echo 20 µs config

011

echo 25 µs config

100

echo 30 µs config

101

echo 35 µs config

110

echo 40 µs config

111

echo 45 µs config

Default value

L9960 Datasheet(PDF) 68 Page - STMicroelectronics

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