TLE6240GP Datasheet, PDF (9/23 Pages) Infineon Technologies AG – Smart 16-fold Low-Side Switch

Data Sheet TLE 6240 GP
Serial Control of the Outputs: SPI protocol
Each output is independently controlled by an output latch and a common reset line, which
disables all outputs. The Serial Input (SI) is read on the falling edge of the serial clock. A logic
high input 'data bit' turns the respective output channel ON, a logic low 'data bit' turns it OFF.
CS must be low whilst shifting all the serial data into the device. A low-to-high transition of
CS transfers the serial data input bits to the output control buffer.
The 16 channels of the TLE 6240 GP are divided up into two parts for the control of the out-
puts (ON, OFF) and the diagnosis information.
Channel 1 to 8:
Serial Input (SI) information consists of 16 bit. 8 bit contain the input driver information for
channel 1 to 8. The remaining 8 bits are used to program a certain operation mode.
Control Byte1: Operation mode and diagnosis select for channels 1 to 8
Data Byte1: ON/OFF information for channel 1 to 8
Serial Output (SO) data consists of 16 bit containing the diagnosis information for channels
1 to 8 with two bits per channel.
DIAG_1:
Diagnosis data for channels 1 to 8.
Channel 9 to 16:
Control Byte2: Operation mode and diagnosis select for channels 9 to 16
Data Byte2: ON/OFF information for channel 9 to 16
DIAG_2:
Diagnosis data for channels 9 to 16.
To drive all 16 channels and to get the complete diagnosis data of the TLE 6240 GP a two
step access has to be performed as follows:
First access:
CS
CS
SI Control Byte1 Data Byte1
SO
16 bit Diagnosis
SI command: Control Byte 1 programs the
operation mode of channels 1 to 8.
Data Byte 1 gives the input information (on
or off) for Channel 1 to 8.
SO diagnosis: Diagnosis information of
channel 1 to 8 or 9 to 16, depending on the
SI control word before.
SI Control Byte1 Data Byte1
SO
DIAG_1 (Ch. 1 to 8)
SI command: Control Byte 1 programs the
operation mode of Channels 1 to 8.
Data Byte 1 gives the input information (on
or off) for Channel 1 to 8.
SO diagnosis: 16 bit diagnosis information
(two bit per channel) of channels 1 to 8
V3.1
Page 9
26.Aug 2002