TLC5929 Datasheet, PDF (23/36 Pages) Texas Instruments – 16-Channel, Constant-Current LED Driver with 7-Bit Global Brightness Control, Power-Save Mode

TLC5929
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PSMODE
BIT 15
0
1
Table 10. Power-Save Mode Truth Table
SBVS159 – APRIL 2011
POWER-SAVE MODE FUNCTION
Power-save mode is disabled. The device does not go into power-save mode even if the bits
in the output on/off data latch are all '0'.
Power save mode is enabled (default value). The device goes into power-save mode when
the bits in the output on/off data latch are all '0'.
SIDLD BIT
(BINARY)
00
01
10
11
Table 11. SID Load Assignment
SELECTED
DETECTOR
No detector
selected
LED open
detection (LOD)
LED short
detection (LSD)
Output leakage
detection (OLD)
CHECKED OUTn
BIT NUMBER
LOADED INTO
COMMON SHIFT
REGISTER
DESCRIPTION
—
No data loaded The data in the common shift register are not changed.
OUT0
OUT1
∙∙∙
OUT14
OUT15
OUT0
OUT1
∙∙∙
OUT14
OUT15
OUT0
OUT1
∙∙∙
OUT14
OUT15
0
The data in the common shift register are updated with LOD or
TEF data.
1
All bits '1' = device junction temperature (T_J) is very high (T_J >
∙∙∙
T_TEF) and all outputs are forced off by the thermal shutdown
function.
14
'1' = OUTn shows lower voltage than the LED open detection
threshold (V_LOD).
15
'0' = normal operation.
0
The data in the common shift register are updated with LSD or
PTW data.
1
∙∙∙
All bits '1' = device junction temperature (T_J) is high (T_J > T_PTW).
14
'1' = OUTn shows higher voltage than the LED short detection
threshold (V_LSD) selected by LSDVLT.
15
'0' = normal operation.
0
The data in the common shift register are updated with OLD or
ISF data.
1
All bits '1' = IREF pin is shorted to GND with low impedance.
∙∙∙
'1' = OUTn is leaking to GND with greater than 3µA.
14
'0' = normal operation.
15
Copyright © 2011, Texas Instruments Incorporated
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