IC-NT Datasheet, PDF (6/8 Pages) IC-Haus GmbH – LIGHT CHAIN PULSE DRIVER

iC-NT
LIGHT CHAIN PULSE DRIVER
Rev A0, Page 6/8
OPERATING REQUIREMENTS: Logic
Operating Conditions: VDD= 4.75..5.5V, Ta= 0..70°C, CL()= 50pF,
input levels lo= 0..0.45V, hi= VDD-0.45V..VDD, see Fig. 1 for reference levels and waveforms
Item Symbol Parameter
Conditions
Fig.
I1 ten
Activation Time (standby to operation):
4
DIN lo→hi before CLK lo→hi
I2 tset1
Setup time:
2
DIN stable before CLK lo→hi
I3 thold1
Hold time:
2
DIN stable after CLK lo→hi
I4 tset2
Setup time:
2
SHEN stable before CLK hi→lo
I5 thold2
Hold time:
2
SHEN stable after CLK hi→lo
I6 tw
LED Pulse time:
4
1st to 2nd CLK lo→hi
Min.
5
50
50
50
50
1.0
Unit
Max.
µs
ns
ns
ns
ns
µs
Fig. 1: Reference levels
Fig. 2: Timing characteristics
Fig. 3: LED Current Pulse
Fig. 4: Chain configuration (SHEN= hi),
LED pulse definition by clock signal