TC62D723FTAG Datasheet, PDF (10/44 Pages) Marktech Corporate – 16-Output constant current LED driver

TC62D723FTAG
8-2-2) Output form of the output open/short detection result data
It is transmitted to 16 bit-shift register in the following form.
MSB
LSB
E15 E14 E13 E12 E11 E10 E9 E8 E7 E6 E5 E4 E3 E2 E1 E0
OUT15 OUT14 OUT13 OUT12 OUT11 OUT10 OUT9 OUT8 OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1 OUT0
Error code (when output open detection function is effective)
The state of output
Error code
V_OOD ≥ V_DS
0
V_OOD < V_DS
1
Condition of output
Open
Normal
Error code (when output short detection function is effective)
The state of output
Error code
V_OSD ≤ V_DS
0
V_OSD > V_DS
1
Condition of output
short-circuit
Normal
Error code (when output open/short detection function is effective)
The state of output
Error code
Condition of output
V_OOD ≥ V_DS or V_OSD ≤ V_DS
0
Open or short-circuit
V_OOD < V_DS or V_OSD > V_DS
1
Normal
When both output error detection function is effective, Open and short-circuit are indistinguishable.
When internal PWM count is 1 to 21, the output open/short detection automatic operation is done.
When the output is off during the output open/short detection execution, the error code becomes "1".
Setting of
PWM output mode
Setting of
PWM bits number
The PWM step that becomes error code "1"
without relations in the state of the output pin.
16 bit PWM setting
Normal
PWM output mode
14 bit PWM setting
12 bit PWM setting
0 to 20 PWM step setting
10 bit PWM setting
16 bit PWM setting
Division
14 bit PWM setting
0 to 2560 PWM step setting
PWM output mode
12 bit PWM setting
10 bit PWM setting
0 to 960 PWM step setting
The above table is unrelated at the time of the output open/short detection manual operation by S3 command.
10
2012-03-19