TLC5948A Datasheet, PDF (33/50 Pages) Texas Instruments – 16-Channel, 16-Bit, ES-PWM, Full Self-Diagnosis LED Driver

TLC5948A
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BIT 124
0
0
1
1
LODVLT
Table 11. LOD Threshold Voltage Truth Table
SBVS192 – MARCH 2012
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 12. 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 13. 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 once after new
GS data are written into the second GS data latch.
BIT 132
0
0
1
1
IDMCUR
Table 14. 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)
Copyright © 2012, Texas Instruments Incorporated
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