Preliminary Datasheet TLE6288 R

Vp2

Page 16

13.01.2003

SI

SO

CS

4 Bits

12 Bits

Command

Data

Diagnosis ( Ch. 1 to 6)

+ 2 Temp. Flags

SI command : 4 Command Bits program

the operation mode of Channels 1 to 6.

12 Data Bits configure the device and

give the input information (on or off) for

Channel 1 to 6.

SO diagnosis 16 bit diagnosis information

(two bit per channel) of channels 1 to 6 plus

two Overtemperature Flags

The 16 bit SPI is used to program different IC functions

and values, turn on and off the channels and to get de-

tailled diagnosis information. Therefore 4 command bits

and 12 data bits are used.

The following parameters and functional behavior can be

programmed by SPI:

Current regulation Mode (mode) : for each of the three

highside channels individually the operation mode can be

set.

a) "no current regulation

b) Current regulation "hold only

c) Current regulation "peak & hold with minimum

peak time

d) Current regulation "peak & hold with pro-

grammed peak time".

current regulation can be programmed. The current range is 1.2A to 3.6A.

vidually the fixed off time for all modes with current regulation can be programmed from 100µs to

400µs.

value for P&H and hold only current regulation can be programmed. The current range is 0.7A to 2.0A

P&H current regulation can be programmed. The time range is 0.8ms to 3.6ms.

Highside / Lowside Configuration ( H/L ) : Each of the three configurable channels (Ch4 – Ch6) can

be programmed for use as Highside Switch or Lowside Switch.

Open load and switch bypassed detection activated or deactivated (OL+SB) : For each of the

three configurable channels(Ch4 – Ch6) the open load and switch bypassed diagnosis can be deacti-

vated. In lowside configuration the open load and the short to GND detection can be deactivated, in

highside configuration the open load and short to battery detection.

Boolean Operation (OR / AND) : For all channels generally the Boolean operation of the parallel input

signal and the SPI bit of the corresponding channel can be defined.

Overtemperature Behavior ( R/L ) : The overtemperature behavior of the channels can be pro-

grammed by SPI. Autorestart or latching overtemperature shutdown can be selected (for all channels

the same behavior).

DIAG6 or Overtemperature Flag (D/F) : With this SPI bit the function of the DIAG6/Overtemp pin is

defined. This output can work as diagnosis output of channel 6 or as Overtemperature Flag.