L99DZ320 datasheet(72/146 Pages) STMICROELECTRONICS

Part #	L99DZ320

Description	Automotive rear door device with CAN FD and LIN

PDF	146 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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72 / 146 page

Figure 32. Half bridge GSHx slope

VDSHxrSW

VDSHx

Current

controlled

Current

VDSHxfSW

Low-resistive

switch

VGSHx

3.26

Resistive low

The resistive output mode protects the device and the H-bridge in the standby mode and in some failure modes

(thermal shutdown (TSD), charge pump low (CP_LOW, see also undervoltage setting described in

Section 3.12.1: VS supply failure) and stuck at ‘1’ at DI pin). When a gate driver changes into the resistive output

mode due to a failure a sequence is started. In this sequence the concerning driver is switched into sink condition

for 32 μs to 64 μs to ensure a fast switch off of the H-bridge transistor. If slew rate control is enabled, the sink

condition is slew rate controlled. Afterwards the driver is switched into the resistive output mode (resistive path to

source).

L99DZ320

Functional description

DS14235 - Rev 5

page 72/146

L99DZ320 Datasheet(PDF) 72 Page - STMicroelectronics