ic-wk iC-Haus, ic-wk Datasheet - Page 4

• Manufacturer Part Number: ic-wk
• Description: 2.4 V Cw Laser Diode Driver
• Manufacturer: iC-Haus

Item
No.
ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 2.4...6 V, RM = 200 ...50 k , Tj = -40...125 °C unless otherwise noted
Total Device
Reference and Monitor Inputs MDA, MDK, AGND
Laser Drive LDA, LDK
iC-WK, iC-WKL
2.4 V CW LASER DIODE DRIVER
001
002
003
004
005
006
007
008
009
010
011
101
102
103
104
105
106
107
108
109
110
201
202
203
204
205
206
Symbol
VCC
I(LDK)m
Idc(VCC)
Ioff(VCC)
Ir(VCC)
ton()
Vc()hi
Vc(LDK)hi Clamp Voltage hi at LDK
Vc(MDA)hi Clamp Voltage hi at MDA
Vc()hi
Vc()lo
V(MDA)
dV(MDA)
Ierr(MDA)
dI(MDA)
APCerr
dI(MD)
Rgnd()
Vf(MDK)
CR()
TC()
Vs(LDK)
dI(MD)
It(LDK)
toff()
Vf()
Rvcc()
Parameter
Permissible Supply Voltage
Permissible Laser Drive Current
(closed control loop)
Supply Current without load path closed control loop, I(MDK) = 0
Supply Current on Reset
Reverse Supply Current
Turn-on Delay
Clamp Voltage hi at
VCC, LDA, MDK
Clamp Voltage hi at CI
Clamp Voltage lo at VCC, LDA,
MDK, MDA, CI
Reference Voltage at MDA
Reference Voltage Temperature
Drift at MDA
Input Current in MDA
Input Current Temperature Drift in
MDA
Control Error
Supply Voltage Suppression of
monitor current
Resistor AGND-GND
Voltage at MDK
Current Ratio I(MDA)/I(MDK)
Current Ratio Temperature
Coefficient I(MDA) / I(MDK)
Saturation Voltage at LDK
Load Balancing Error
Overcurrent Threshold in LDK
Overcurrent Reset Delay
Diode Forward Voltage LDK-LDA I(LDK) < 70 mA
Transient Protection Resistor
Conditions
Tj = -40...125 °C
Tj = -40...80 °C
RM = 50 k , VCC = -6 V
VCC: 0
I(LDK) = I(LDK)m;
CI = 47 nF
CI = 100 nF
I() = 10 mA, other pins open
V() < VCC + 1 V; I() = 10 mA,
other pins open
I() = 10 mA, other pins open
iC-WKL
iC-WK
I() = 10 mA, other pins open
I() = -10 mA, other pins open
closed control loop,
V(LDK) > Vs(LDK)
see 101;
closed control loop, I(MDK) = 0
see 103;
RM = 10 k , Tj = 0...80 °C
RM = 10 k , Tj = -40...125 °C
V(VCC): 2.4
I(LDK) = 70 mA
Vf() = V(LDA)
I(MDK) = 1 µA...1 mA
I(MDK) = 10...500 µA
I(MDK) = 500 µA...2.5 mA
I(MDK) = 10...500 µA
I(MDK) = 500 µA...2.5 mA
I(LDK) = 40 mA
I(LDK) = 70 mA, Tj = -40...125 °C
I(LDK) = 90 mA, Tj = -40...80 °C
I(LD) = 20 mA,
I(LDK): 20 mA
Tj = -40...125 °C
Tj = -40...80 °C
lack of feedback:
I(RM) = 0 to I(LDK) = It(LDK);
I(LDK) = 20 mA, CI = 47 nF
I(LDK) = 20 mA, CI = 100 nF
I(LDK) = 60 mA, CI = 47 nF
I(LDK) = 60 mA, CI = 100 nF
VCC vs. LDA
5 V to 95 % I(LDK),
6 V,
V(MDK);
70 mA
°C
Tj
Fig.
-0.005
-0.025
0.975
Min.
-300
0.46
0.95
480
2.4
1.1
1.1
70
90
-6
-9
-2
-1
-1
5
5
6
6
6
Typ.
500
130
2.4
2.4
-3
Rev D1, Page 4/8
1.025
0.005
0.025
Max.
1.05
150
520
120
300
300
400
400
300
300
170
130
5.5
0.3
2.1
1.1
70
90
70
85
60
6
5
9
9
9
4
4
2
1
1
3
1
4
µV/°C
nA/°C
%/°C
%/°C
Unit
mA
mA
mA
mA
mA
mV
mV
mV
mV
mA
mA
nA
µs
µs
µs
µs
µs
µs
%
%
%
%
V
V
V
V
V
V
V
V
V