TLE7237SL Datasheet, PDF (17/36 Pages) Infineon Technologies AG – SPI Driver for Enhanced Relay Control

SPI Driver for Enhanced Relay Control
TLE7237SL
Power Stages
6.4
Timing Diagrams
The power transistors are switched on and off with a dedicated slope via the INX bits of the serial peripheral
interface (SPI). The switching times t_ON and t_OFF are designed equally.
IN
t_ON
V_DS
80%
t_OFF
t
20%
Figure 6 Switching a Resistive Load
t
SwitchOn .emf
In input mode, a high signal at the input pin is equivalent to a SPI ON command and a low signal to SPI OFF
command respectively. Please refer to Section 9.3 for details on SPI protocol.
Data Sheet
18
Rev. 1.0, 2010-02-18