TLE6288R_10 Datasheet, PDF (10/32 Pages) Infineon Technologies AG – Smart 6 Channel Peak & Hold Switch

TLE6288R
4
Description
4.1
General Functional Description
Description
Channel 1 to 3
• High Side Configuration with Charge Pump
• On / off Current Control
• Peak & Hold Current Control with fixed off time, values adjustable by SPI
• Type of current control can be selected by SPI
• Peak Current,Peak Time, Hold Current and Off-Time can be selected by SPI to set average and ripple current
for a given load (refer to Figure 6)
Channel 4 to 6
• Configurable as either High or Low Side switch (by SPI)
• On / Off operation
4.1.1 Output Stage Control: Parallel Control and SPI Control
A Boolean operation (either AND or OR) is performed on each of the parallel inputs IN 1 … 6 and respective SPI
data bits, in order to determine the states of the respective outputs. The type of Boolean operation performed is
programmed via the serial interface. Both, parallel inputs and respective SPI databits are high active.
IN 1…6
AND
OR
Output
Driver
Serial Input bits 6 -11 of command
„Channels on / off „
Figure 4 Serial Input Bits 6-11 of Command “Channels on/off”
Each output is independently controlled by an output latch and a common reset line FSIN, which disables all
outputs. A logic high input ‘data bit’ turns the respective output channel ON, a logic low ‘data bit’ turns it OFF.
Table 2 Truth Table
Parallel Input
0
0
1
1
SPI Bit
0
1
0
1
Output OR
OFF
ON
ON
ON
Output AND
OFF
OFF
OFF
ON
Data Sheet
10
Rev. 2.5, 2010-10-11