L99MH98 datasheet(23/147 Pages) STMICROELECTRONICS

Part #	L99MH98

Description	Automotive octal half-bridge pre-driver

PDF	147 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

23 / 147 page

•

1, 2, 4 or 8 = the HBx relates to another HB with the same key.

Figure 6. Example of possible configuration to assign a key at each half-bridge

= 1

= 2

= 4

= 8

LOGIC

µC

SPI

When a failure is detected in the half-bridge which has key x, all half-bridges that have key x will be turned off. All

other half-bridges in which the failure is not detected, or which are connected to the half-bridge that fails, will

remain switched on and will continue to work.

The Figure 7 shows an example of a possible configuration that associates different keys to different pairs of HB.

Figure 7. Example of possible configuration where a key is associated to a different half-bridge

= 1

= 2

= 4

The Figure 8 shows an example of a fault detected in HB1, connected with the same key to HB2, HB7 and HB8.

The L99MH98 switches off HB1, HB2, HB7 and HB8 because linked with the same key.

L99MH98

Functional description

DS14611 - Rev 3

page 23/147

L99MH98 Datasheet(PDF) 23 Page - STMicroelectronics