iC-WJB
2.7 V LASER DIODE DRIVER
Rev E1, Page 4/12
ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 2.7...6 V, RSET = 2.7...27 kΩ, I(AMD) = 0.15...1.5 mA, Tj = -25...125 °C, unless otherwise noted.
Item
No.
001
002
003
004
005
006
007
Symbol
Parameter
Conditions
Min.
VCC
Idc(VCC)
I0(VCC)
Iav(VCC)
Permissible Supply Voltage
Range
Supply Current in VCC
Standby Supply Current in VCC
RSET = 5 kΩ, IN = hi, Idc(KLD) = 40 mA
REST= 5 kΩ, IN = lo, Tj = 27 °C
2.7
4
7
5
9
65
50
6.2
7.5
0.3
0.11
0.4
10
0.4
0.84
100
30
100
20
2.4
2.4
2.7
3
3.6
3
0.01
-0.1
45
40
20
Tj = 27 °C
204
205
Rin
V0()
Pull-Down Resistor
Open-loop Voltage
V(IN) = -0.3 V...VCC
Tj = 27 °C
I(IN) = 0
1.16
Tj = 27 °C
302
303
304
305
CR()
RSET
Toff
Thys
Current Ratio I(CI)/I(ISET)
Permissible Resistor at ISET
(Control Set-up Range)
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
V(CI) = 1...2 V, I(AMD) = 0
0.9
2.7
125
10
2.4
Tj = 27 °C
402
403
404
VCCoff
VCChys
Vs(CI)off
Undervoltage Threshold at VCC
Tj = 27 °C
Hysteresis
Saturation Voltage at CI with
undervoltage
VCChys = VCCon
−
VCCoff
I(CI) = 300 µA, VCC < VCCoff
70
2.3
2.5
100
150
1.5
2.6
2.63
1.22
1
1.12
330
150
40
2.7
kΩ
°C
°C
V
V
V
V
mV
V
4
10
0.1
1.28
65
16
3.8
5.4
3.3
% / °C
% / °C
%VCC
%VCC
mV
mV
kΩ
kΩ
V
V
V
1.0
10
15
135
Typ.
Max.
6
13
V
mA
mA
mA
ns
mW
V
V
V
V
V
µA
V
V
ns
ns
ns
ns
Unit
Total Device
Supply Current in VCC (average Ipk(KLD) = 80 mA, f(IN) = 200 kHz ±20 %,
value)
twhi / twlo = 1
IN(hi
↔
lo), V(50 %) : I(50 %)
VCC = 3 V, V(KLD)
≈
0.6 V, RSET = 5 kΩ,
Idc(KLD) = 40 mA
I() = 2 mA, other pins open
Tj = 27 °C
IN = hi, I(KLD) = 80 mA
Tj = 27 °C
IN = hi, I(KLD) = 100 mA
IN = lo, V(KLD) = VCC
I(AMD) = 1.5 mA
Tj = 27 °C
Imax(KLD) = 20...80 mA, Ip(): 10
→
90 %
Tj = 27 °C
Imax(KLD) = 20...80 mA, Ip(): 90 %
→
10 %
Tj = 27 °C
I(CI) = 0, closed control loop;
RSET = 2.7..27 kΩ
RSET = 27..330 kΩ
V(CI) = 1...2 V, ISET open
I(CI) = 0, closed control loop;
RSET = 2.7...27 kΩ
RSET = 27...330 kΩ
tp(IN-KLD) Delay Time Pulse Edge V(IN) to
I(KLD)
Pcon
Vc()hi
Power Consumption
Clamp Voltage hi at VCC, IN,
AMD, KLD, CI, CWD, ISET
Saturation Voltage at KLD
Saturation Voltage at KLD
Leakage Current in KLD
Voltage at AMD
Current Rise Time in KLD
Current Fall Time in KLD
Current Ratio I(AMD)/I(ISET)
Driver
101 Vs(KLD)
102
103
104
105
106
107
Vs(KLD)
I0(KLD)
V(AMD)
tr
tf
CR1()
108
109
CR2()
TC1()
Current Ratio I(AMD)/I(CI)
Temperature Coefficient of
Current Ratio I(AMD)/I(ISET)
-0.25
70
65
Input IN
201
202
203
Vt()hi
Vt()lo
Vt()hys
Threshold hi
Threshold lo
Hysteresis
Reference und Thermal Shutdown
301 V(ISET)
Voltage at ISET
Power-Down and Watchdog
401 VCCon
Turn-on Threshold VCC
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