iC-NT
LIGHT CHAIN PULSE DRIVER
Rev A0, Page 5/8
ELECTRICAL CHARACTERISTICS
Operating Conditions:
VDD= 4.75..5.5V, RSET= 1.8..4.5kΩ, Tj= -20..125°C, unless otherwise noted
Item
Symbol
Parameter
Conditions
Tj
°C
LED Current Sink (continued)
109 Ir(LED)
LED Discharge Current
V(VDD/LED)= 1.5V
300
200
500
850
mA
Ω
Fig.
Min.
Typ.
Max.
Unit
110 Rpu(LED) Pull-up Resistor at LED
Control Inputs DIN, SHEN, CLK
201 Vt()hi
202 Vt()lo
203 Vhys()
204 Ipd()
Threshold Voltage hi
Threshold Voltage lo
Schmitt-Trigger Input
Hysteresis
Pull-Down Current
V()= 5.0V
78
22
400
3
6
12
%VDD
%VDD
mV
µA
Output Buffer DOUT
301 Vs()hi
302 Vs()lo
303 Isc()hi
304 Isc()lo
305 Rout()
306 tr()
307 tf()
Saturation Voltage hi
Saturation Voltage lo
Short-Circuit Current hi
Short-Circuit Current lo
Output Resistance
Rise Time
Fall Time
Vs(DOUT)hi= VDD-V(DOUT),
I(DOUT)= -4mA
I(DOUT)= 4mA
V(DOUT)= 0V
V(DOUT)= VDD
VDD= 5.0V, V(DOUT)= 2.5V
CL(DOUT)≤ 50pF
CL(DOUT)≤ 50pF
-100
20
80
-40
40
120
20
20
0.4
0.4
-20
100
190
60
60
V
V
mA
mA
Ω
ns
ns
Switching Characteristics
401 tphl(CLK LED Pulse Turn-on Delay
-LED)
402 tplh(CLK LED Pulse Turn-off Delay
-LED)
403 tplh(CLK- DOUT Switch Delay hi
DOUT)
404 tphl(CLK- DOUT Switch Delay lo
DOUT)
DIN= hi, CLK lo→hi until
I(LED)= 10% set value
DIN= lo, CLK lo→hi until
I(LED)= 90% set value
CL(DOUT)≤ 50pF,
CLK hi→lo
CL(DOUT)≤ 50pF,
CLK hi→lo
4
4
2
2
25
25
100
80
60
60
ns
ns
ns
ns
ICHAUS [ IC-HAUS GMBH ]
