IC-NX Datasheet, PDF (7/10 Pages) IC-Haus GmbH – 8-CHANNEL LIGHT-GRID PULSE DRIVER

iC-NX
8-CHANNEL LIGHT-GRID PULSE DRIVER
Rev C1, Page 7/10
OPERATING REQUIREMENTS: Logic
Operating Conditions: VDD = 4.75...6.0 V, Ta = 0...70 °C, CL() = 50 pF,
input levels lo = 0...0.45 V, hi = VDD - 0.45...VDD, see Fig. 1 for reference levels and waveforms
Item Symbol Parameter
No.
Conditions
I001 ten
Activation Time (standby to operation):
DIN lo → hi before CLK lo → hi
I002 tset
Setup time:
DIN stable before CLK lo → hi
I003 thold
Hold Time:
DIN stable after CLK lo → hi
I004 tw
LED Pulse time:
1^st to 2^nd CLK lo → hi
Fig.
Min.
4
5
2
50
2
50
4
0.5
Unit
Max.
µs
ns
ns
µs
V
VDD − 0.45 V
Vt()hi
Input/Output
Vt()lo
0.45 V
t
1
0
Figure 1: Reference levels
CLK
DIN
SHEN
t set1
t hold1
Q1= SEND
Q2
Q3
DOUT
V(LED)
t set2
t hold2
t plh (CLK−DOUT)
Figure 2: Timing characteristics
t phl (CLK−DOUT)
I(LED)
t_r
t_f
I _pk
90 % I _pk
10 % I _pk
t
Figure 3: LED current pulse
CLK
DIN
t _en
Q1 = SEND
Q2
Q3
DOUT
I(LED)
SHEN
I(SHEN)
t_w
t plh (CLK−LED)
90 %
t phl (CLK−LED)
10 %
Figure 4: LED current pulse definition by clock signal (dashed line de-
notes I(SHEN) in case of an interrupted LED path)