TLC5949 Datasheet, PDF (32/51 Pages) Texas Instruments – 16-Channel, 12-Bit, ES-PWM, Full Self-Diagnosis LED Driver for 7-Bit Global BC LED Lamp

TLC5949
SBVS219A – DECEMBER 2012 – REVISED DECEMBER 2012
www.ti.com
BIT 124
0
0
1
1
LODVLT
Table 8. LOD Threshold Voltage Truth Table
BIT 123
0
1
0
1
LED OPEN DETECTION (LOD) THRESHOLD VOLTAGE
VLOD0 (0.3 V, typ)
VLOD1 (0.6 V, typ)
VLOD2 (0.9 V, typ)
VLOD3 (1.2 V, typ)
BIT 126
0
0
1
1
LSDVLT
Table 9. LSD Threshold Voltage Truth Table
BIT 125
0
1
0
1
LED SHORT DETECTION (LSD) THRESHOLD VOLTAGE
VLSD0 (0.35 × VCC, typ)
VLSD1 (0.45 × VCC, typ)
VLSD2 (0.55 × VCC, typ)
VLSD3 (0.65 × VCC, typ)
Table 10. LOD and LSD Data Latch Time Truth Table
BIT 128
0
0
1
1
LATTMG
BIT 127
0
1
0
1
LOD and LSD DATA LATCH TIMING
17th GSCLK after BLANK bit is changed to '0' or GS counter is reset.⁽¹⁾
33rd GSCLK after BLANK bit is changed to '0' or GS counter is reset.⁽¹⁾
65th GSCLK after BLANK bit is changed to '0' or GS counter is reset.⁽¹⁾
129th GSCLK after BLANK bit is changed to '0' or GS counter is reset.⁽¹⁾
(1) When DSPRPT is '1' and IDMRPT is '0', the resulting LOD and LSD data are loaded to the LOD and LSD data latch only one time after
new GS data are written into the second GS data latch.
BIT 132
0
0
1
1
IDMCUR
Table 11. IDM Sink Current Truth Table
BIT 131
0
1
0
1
INVISIBLE DETECTION MODE (IDM) SINK CURRENT
2 μA (typ)
10 μA (typ)
20 μA (typ)
1 mA (typ)
32
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