TPS929160-Q1
ZHCSNG0 – APRIL 2023
www.ti.com.cn
表 7-6. Diagnostics Table in NORMAL State
FAULT TYPE
DETECTION CRITERIA
CONDITIONS
FAULT ACTIONS
FAULT OUTPUT
ERR PIN
RECOVERY
V(VBAT) < V(POR_falling)
or
V(LDO) < V(LDO_POR_falling)
Device switch to INIT state when all
voltage rails are good.
Clear fault flag with CLRPOR.
Device switch to
POR state
FLAG_POR
FLAG_ERR
Constant pulled
down
VBAT UVLO
Automatically recovery upon fault
removal.
Clear fault flag with CLRFAULT.
FLAG_LOWSUP
FLAG_ERR (maskable)
One pulse pulled
down for 50 µs
Low-supply warning
Supply undervoltage
V(SUPPLY) < V(LOWSUPTH)
Disable fault type *
Turn off all outputs
Automatically recovery and release
ERR pin upon fault removal.
Clear fault flag with CLRFAULT.
FLAG_SUPUV
FLAG_ERR (maskable)
Constant pulled
down (maskable)
V(SUPPLY) < V(SUPUV_th_falling)
V(REF) < V(REF_SHORT_th)
or
I(REF) < I(REF_OPEN_th)
Automatically release ERR pin upon
fault removal.
Clear fault flag with CLRFAULT.
FLAG_REF
FLAG_ERR (maskable)
Constant pulled
down (maskable)
Reference fault
No action
No action
FLAG_PRETSD
FLAG_ERR(maskable)
One pulse pulled
down for 50 µs
Pre-thermal warning
T(J) > T(PRETSD)
Clear fault flag with CLRFAULT
Automatically recover upon fault
removal.
Clear fault flag with CLRFAULT.
Overtemperature
protection
FLAG_TSD
FLAG_ERR (maskable)
Constant pulled
down (maskable)
T(J) > T(TSD1)
Turn off all outputs
Device switch to INIT state when all
voltage rails are good.
Clear fault flag with CLRPOR.
Overtemperature
shutdown
FLAG_POR
FLAG_ERR
Constant pulled
down
T(J) > T(TSD2)
Turn off LDO
No action
PWM pulse width greater than
t(BLANK) + t(OPEN_deg)
ENOUTXn = 1
V(SUPPLY) - V(OUTXn) < V(OPEN_th_rising)
and
FLAG_OPENOUTXn
FLAG_OUT (maskable)
FLAG_ERR (maskable)
One pulse pulled
down for 50 µs
(maskable)
LED open-circuit
fault *
Clear fault flag with CLRFAULT
Clear fault flag with CLRFAULT
V(SUPPLY) > V(LOWSUPTH)
DIAGENOUTXn = 1
PWM pulse width greater than
t(BLANK) + t(SHORT_deg)
ENOUTXn = 1
FLAG_SHORTOUTXn
FLAG_OUT (maskable)
FLAG_ERR (maskable)
One pulse pulled
down for 50 µs
(maskable)
LED short-circuit
fault
V(OUTXn) < V(SG_th_rising)
No action
DIAGENOUTXn = 1
PWM pulse width greater than
t(BLANK)+ t(SLS_deg)
ENOUTXn = 1
DIAGENOUTXn = 1
SLSEN = 1
V(OUTXn) < V(SLSTH)
and
V(SUPPLY) > V(LOWSUPTH)
FLAG_SLSOUTXn
FLAG_OUT
FLAG_ERR (maskable)
Single-LED short
circuit *
One pulse pulled
down for 50 µs
No action
No action
Clear fault flag with CLRFAULT
Clear fault flag with CLRFAULT
One pulse pulled
down for 50 µs
(maskable)
FLAG_EEPCRC
FLAG_ERR (maskable)
EEPROM CRC error
CALC_EEPCRC is different EEPCRC
T(WDTIMER) overflows
Communication loss
fault
Enter FAIL-SAFE
states
Set CLRFS to 1 to set the device to
NORMAL state
FLAG_FS
No action
Copyright © 2023 Texas Instruments Incorporated
English Data Sheet: SLVSG60
34
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