L99H01QF datasheet(40/53 Pages) STMICROELECTRONICS

No de pièce	L99H01QF

Description	Motor bridge driver for automotive applications

PDF	53 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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40 / 53 page

Functional description of the SPI

L99H01

40/53

DocID15567 Rev 6

Comments:

•

RWD: Restarts the watchdog counter

•

EXT_TS: The bit select the mode of the input pin TS/ACT_OFF:

–

EXT_TS = low (active off):

TS/ACT_OFF pin is used as input to switch the H-bridge in tristate and back.

Details are discribed in Section 3.12.1.

–

EXT_TS = high (thermal sensor interface):

TS/ACT_OFF pin is used as thermal sensor interface for external temperature

diodes. Details are discribed in Section 3.12.2.

•

EXTTH[5:0]: Determines the threshold of the external thermal shutdown/warning

Table 40. Address 3 <03(hex)> : ApplReg3 – read/write

Bit

54321

Name

RWD

EXT_TS

EXTTH_5 EXTTH_4 EXTTH_3 EXTTH_2 EXTTH_1 EXTTH_0

00000

Table 41. External threshold voltage, factor n

EXTTH_5

EXTTH_4

EXTTH_3

Table 42. External threshold voltage, factor m

EXTTH_2

EXTTH_1

EXTTH_0

L99H01QF Fiches technique(PDF) 40 Page - STMicroelectronics