IC-WKP Datasheet, PDF (5/10 Pages) IC-Haus GmbH – 15 V CW P-TYPE LASER DIODE DRIVER

iC-WKP
15 V CW P-TYPE LASER DIODE DRIVER
Rev A6, Page 5/10
ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 3...15 V, RM = 0.2...500 kΩ, Tj = -40...125 °C unless otherwise stated
Item Symbol Parameter
No.
Conditions
Min.
Total Device
001 VCC
Permissible Supply Voltage
3
002 I(LDA)m Permissible Laser Drive Current Control range
(closed control loop)
-350
003 Idc(VCC) Supply Current without load path Closed control loop, I(MDK) = 0,
I(LDA) = -350 mA
004 Ioff(VCC) Supply Current after Reset
005 Ir(VCC) Reverse Supply Current
RM = 50 kΩ, VCC = -6 V
-15
006 ton()
Turn-on Delay
VCC: 0 → 5 V to 95% I(LDA),
I(LDA) = I(LDA)m, CI = 3.3 µF
007 Vc()hi
Clamp Voltage hi at MDA
I() = 10 mA, other pins open
1
008 Vc()lo
Clamp Voltage lo at
I() = -10 mA, other pins open
-9
VCC, LDA, MDA, CI, VCCA
009 Vc()hi
Clamp Voltage hi at MDK refer- I() = 10 mA, other pins open
8
enced to VCCA
010 Vc()lo
Clamp Voltage lo at MDK refer- I() = -10 mA, other pins open
-11
enced to VCCA
011 Vc()hi
Clamp Voltage hi at VCC, LDA, I() = 10 mA, other pins open
16
CI, VCCA
Reference and Monitor Inputs MDA, MDK, AGND
101 Vref(MDK) Reference Voltage at MDK
Vref(MDK) = VCCA − V(MDK),
1.18
closed control loop, VCC − V(LDA) > Vs(LDA)
102 dV(MDK) Reference Voltage Temperature See 101
Drift at MDA
103 Ierr(MDK) Input Current in MDK
Closed control loop, I(MDA) = 0
-300
104 dI(MDK) Input Current Temperature Drift in See 103
-1
MDK
105 APCerr Control Error
RM = 10 kΩ;
Tj = 0...80 °C
Tj = -40...125 °C
106 dI(MD) Supply Voltage Suppression
V(VCC): 3 → 15 V, I(LDA) = -350 mA
-2
107 Rgnd() Resistor AGND-GND
108 CR()
Current Ratio I(MDA)/I(MDK) I(MDA) = 1 µA...1 mA
0.98
I(MDA) = 1...6 mA
0.95
109 TC()
Current Ratio Temperature
Coefficient I(MDA)/I(MDK)
I(MDA) = 1 µA...1 mA
-0.005
-0.025
110 Vf(MDA) Voltage at MDA
I(MDA) = 1 µA...6 mA
0.4
Laser Driver LDA
201 Vs(LDA) Saturation Voltage at LDA
referenced to VCC
Vs(LDA) = V(VCC) − V(LDA);
I(LDA)= -40 mA
I(LDA)= -350 mA
202 dI(MDK) Load Balancing Error
I(LDA): -20 → -350 mA
-2.5
203 It(LDA) Overcurrent Threshold in LDA
-700
204 toff()
Overcurrent Reset Delay
Lack of feedback: I(MD) = 0 to I(LDA) > -10 mA,
VCC = 5 V, CI = 3.3 µF
205 Vf()
Flyback Diode Forward Voltage I(LDA) > -350 mA
V(GND)-V(LDA)
206 Rvcc() Transient Protection Resistor VCC to VCCA
207 Vt(MDK) Shutdown Threshold at MDK Vt(MDK) = V(VCCA) − V(MDK), t > 1 µs
1.35
Control Release Flip-Flop
401 VCCen Set Threshold for Enable Flip-
0.6
Flop
402 Toff
Overtemperature Shutdown
140
Typ.
5
2.4
-3
11
1.24
1.3
Max.
15
-10
10
5
600
4
14
-1
24
1.30
120
300
1
0.5
2
2
3
1.02
1.05
0.005
0.025
2
0.9
1.3
2
-360
600
1.5
3
2.1
1.9
165
Unit
V
mA
mA
mA
mA
µs
V
V
V
V
V
V
µV/°C
nA
nA/°C
%
%
%
Ω
%/°C
%/°C
V
V
V
%
mA
µs
V
Ω
V
V
°C