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LM3556TMX/NOPB Datasheet(PDF) 26 Page - Texas Instruments

Part # LM3556TMX/NOPB
Description  LM3556 1.5-A Synchronous Boost LED Flash Driver With High-Side Current Source
PDF  38 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM3556TMX/NOPB Datasheet(HTML) 26 Page - Texas Instruments

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LM3556
SNVS796D – AUGUST 2011 – REVISED OCTOBER 2015
www.ti.com
7.6.1.12 Flags Register (0x0B)
Table 14. Flags Register Description
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
TX Event
NTC Trip
IVFM
UVLO
OVP
LED or VOUT
Thermal
Flash Time-out
0 = Default
0 = Default
0 = Default
0 = Default
0 = Default
Short Fault
Shutdown
0 = Default
0 = Default
0 = Default
TX Event Flag TX event occurred.
NTC Trip Flag NTC threshold crossed.
IVFM Flag
IVFM block reported and/or adjusted LED current.
UVLO Fault UVLO threshold crossed.
OVP Flag
Overvoltage Protection tripped. Open output capacitor or open LED.
LED Short Fault LED short detected.
Thermal Shutdown Fault LM3556 die temperature reached thermal shutdown value.
Time-Out Flag Flash Timer tripped.
NOTE
Faults require a read-back of the Flags Register to resume operation. Flags report an
event occurred, but do not inhibit future functionality. A read-back of the Flags Register
updates again if the fault or flags are still present upon a restart.
26
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Copyright © 2011–2015, Texas Instruments Incorporated
Product Folder Links: LM3556



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