TPS929160-Q1
ZHCSNG0 – APRIL 2023
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PWM dimming method set by EXPEN. The detailed calculation and description are explained in Exponential
Brightness Control. The default value of EXPEN can be changed by burning the target value to EEPROM.
STEP 6: Design the diagnostics configuration. The diagnostics configuration for both NORMAL state and FAIL-
SAFE states must be set up properly based on the system requirements. The following configuration registers
must be designed:
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Low-supply warning threshold set by LOWSUPTH. The detail calculation and description are explained in
Low-Supply Warning Diagnostics in NORMAL State. The default value of LOWSUPTH can be changed by
burning the target value to EEPROM.
Diagnostics enabling setup for each channel by CONF_DIAGENCHx. The diagnostics for each channel can
be enabled or disabled by DIAGENOUTXn register. The detailed description is explained in Fault Masking.
The default value of DIAGENOUTXn can be changed by burning the target value to EEPROM.
Single-LED short-circuit configuration by SLSEN, SLSTHOUTXn, SLSTH0 and SLSTH1. The detailed
calculation and description are explained in Single-LED Short-Circuit Detection in NORMAL state. The default
value of SLSEN, SLSTHOUTXn, SLSTH0 and SLSTH1 can be changed by burning the target value to
EEPROM.
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FAIL-SAFE state access watchdog timer setup by WDTIMER. The detailed calculation and description are
explained in NORMAL state. The default value of WDTIMER can be changed by burning the target value to
EEPROM.
Channel setup in FAIL-SAFE state. In FAIL-SAFE state, the FS pin can be used as control signal to turn on
or turn off the corresponding channel. Each current output channel has its own register, FSOUTXn to set the
mapping to FS0 or FS1. When FSOUTXn is set to 0, the corresponding current output channel is controlled
by FS0 input, otherwise it is controlled by FS1 input. The detailed calculation and description are explained in
FAIL-SAFE State Operation.
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One-fails-all-fail setup by OFAF. If the one-fails-all-fail can be enabled by burning 1 to OFAF according to
system requirements. Tie the ERR pins for all TPS929160-Q1 in the system together with a single 4.7-kΩ
pullup resistor to realize the one-fails-all-fail feature. The detailed calculation and description is explained in
OFAF Setup In FAIL-SAFE State.
CRC check reference calculation for EEPCRC. After all the EEPROM register values are designed, the CRC
reference value for all EEPROM register must be calculated and burnt into EEPCRC. The detailed calculation
and description are explained in EEPROM CRC Error in NORMAL state.
STEP 7: EEPROM burning solution design.
TI recommends that the EEPROM burning be done in the end of production line. The detailed flow is introduced
in EEPROM Register Access and Burn .
8.2.4 Application Curves
CH1 = RX
CH2 = TC
CH3 = CANH
CH1 = RX
CH2 = TX
CH3 = V(OUT0)
CH4 = CANL
CH4 = I(OUT0)
图 8-3. CAN Transceiver Operating
图 8-4. Output Control by FlexWire Interface
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Product Folder Links: TPS929160-Q1
English Data Sheet: SLVSG60
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