iC-NT
LIGHT CHAIN PULSE DRIVER
Rev A0, Page 4/8
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
Total Device
001 VDD
002 I(VDD)
Permissible Supply Voltage
Range
Supply Current in VDD
(Standby)
Analog section disabled; DIN= lo,
CLK,SHEN= hi or lo,
logic levels: lo= 0..0.45V,
hi= VDD-0.45V..VDD
Analog section disabled; DIN= lo
CLK, SHEN hi or lo,
logic levels: lo= 22%VDD,
hi= 78%VDD
Analog section enabled;
RSET≥ 1.8kΩ,
LED current sink off
Analog section enabled;
RSET≥ 1.8kΩ,
LED current sink on
-20
27
85
Toff
-20
27
85
Toff
4.75
5.5
60
V
µA
Fig.
Min.
Typ.
Max.
Unit
003 I(VDD)
Supply Current in VDD
1
mA
004 I(VDD)
Supply Current in VDD
7.5
7.5
8.5
1.0
25
25
26
1.0
4.3
mA
mA
mA
mA
mA
mA
mA
mA
V
V
mV
005 I(VDD)
Supply Current in VDD
006 VDDon
007 VDDoff
008 VDDhys
009 Vc()hi
010 Vc()lo
011 Toff
Turn-on Threshold VDD
(Power-on Release)
Undervoltage Threshold at VDD
(Power-down Reset)
Hysteresis
Clamp Voltage hi at DIN, CLK,
SHEN, DOUT, ISET, LED
Clamp Voltage lo at DIN, CLK,
SHEN, DOUT, ISET, LED
Shutdown Temperature
decreasing voltage VDD
VDDhys= VDDon-VDDoff
Vc()hi= V()-VDD,
I()= 10mA
I()= -10mA, VDD= 0V
other pins open
2.7
100
0.4
-1.25
110
1.25
-0.4
150
V
V
°C
LED Current Sink
101 V(ISET)
Reference Voltage at ISET
-20
27
85
Toff
27
0.30
1.27
1.50
1.79
0
0.33
1200
duty cycle I(LED)≤ 1%,
RSET= 1.8kΩ,
V(LED)= 1.0V..VDD
duty cycle I(LED)≤ 1%,
RSET= 4.5kΩ,
V(LED)= 0.85V..VDD
-20
27
85
Toff
-20
27
85
Toff
3
3
LED shutdown, switch Sdis
closed
0.65
0.82
0.93
0.26
0.33
0.37
0.85
1.00
1.2
0
0.34
0.40
0.48
0
1.06
1.18
1.48
0.44
0.48
0.61
150
150
400
A
A
A
A
A
A
A
A
ns
ns
ns
0.36
V
V
V
V
%/K
102 TC(ISET) Temperature Coefficient of
Reference Voltage at ISET
103 CR()
104 I(LED)
Current Ratio I(LED) / -I(ISET)
LED Pulse Current
105 I(LED)
LED Pulse Current
106 tr(LED)
107 tf(LED)
LED Current Rise Time
LED Current Fall Time
108 tdis(LED) LED Discharge Duration
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