IC-WK Datasheet, PDF (4/8 Pages) IC-Haus GmbH – 2.4 V CW LASER DIODE DRIVER

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