參數(shù)資料
型號: TLE6220
廠商: INFINEON TECHNOLOGIES AG
英文描述: Smart Quad Low-Side Switch
中文描述: 智能四低邊開關(guān)
文件頁數(shù): 9/17頁
文件大?。?/td> 739K
代理商: TLE6220
Data Sheet TLE 6220 GP
V1.1
Page
26.Aug. 2002
9
SI H H L L X X X X
SO H H H H H H H H
CS
CS
SI H H H H L H H L
SO
IN4 IN3 IN2 IN1 F4 F3 F2 F1
SI command
: No change of the
output state; reading back of
inputs and 1bit diagnosis
SO diagnosis
: No fault, normal
function
CS
SI H H H H L L L L
SO
H H H H H H H H
SI command
: AND-Operation;
Ch1 and 4 OFF, Ch2 and 3 ON.
SO diagnosis
: State of four parallel
inputs and 1 bit diagnosis performed
SI command
: AND-Operation and
all channels OFF.
SO diagnosis
: No fault, normal
function
3.
HLHL XXXX
- Echo-function of SPI
To check the proper function of the serial interface the TLE 6220 GP provides a "SPI Echo
Function". By entering HLHL as control word, SI and SO are connected during the next
CS
period. By comparing the bits clocked in with the serial output bits, the proper function of the
SPI interface can be verified. This internal loop is only closed once (for one
CS
period).
SI H L H L X X X X
SO H H H H L H H H
CS
CS
SI
SO
SI word
SI command
: No change of the
output states; Echo function of SPI
SO diagnosis
: Open load condition
at channel 2, other channels ok.
Echo-function of SPI
, i.e. SI
directly connected to SO.
SI information
will be accepted
during this cycle
and the
outputs set accordingly after
chip select rising edge
4.
LLHH DDDD
- OR operation, and ‘full diagnosis’
With LLHH as the control word, each of the input signals IN1...IN4 are 'OR'ed with the corre-
sponding data bits (DDDD).
1
Output
Driver
IN 1...4
Serial Input,
data bits 0...3
This OR operation enables the serial interface to switch the channel ON, even though the cor-
responding parallel input might be in the off state.
SPI Priority for ON-State
Also parallel control of the outputs is possible without an SPI input.
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