iC-WJ, iC-WJZ
LASER DIODE DRIVER
Rev C1, Page 5/12
ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 5 V ±10 %, RSET = 2.7...27 kΩ,
iC-WJ: I(AMD) = 50...500 µA, iC-WJZ: I(AMD) = 0.15...1.5 mA, Tj = -25...125 °C, unless otherwise noted.
Item Symbol
No.
Parameter
Conditions
Tj
°C
Fig.
Unit
Min.
Typ.
Max.
303 RSET
Permissible Resistor at ISET
(Control Set-up Range)
2.7
50
kΩ
304 Toff
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
125
10
150
40
°C
°C
305 Thys
Power-Down and Watchdog
401
VCCon
Turn-on Threshold VCC
3.5
4.3
V
V
27
27
3.8
402 VCCoff
403
Undervoltage Threshold at VCC
Hysteresis
3.2
3.8
V
VCChys
VCChys = VCCon − VCCoff
I(CI) = 300 µA, VCC < VCCoff
I(CI) = 300 µA, t(IN = lo) > tp (*)
300
450
mV
mV
400
404 Vs(CI)off
Saturation Voltage at CI with
undervoltage
1.6
1.5
V
405 Vs(CI)wd Saturation Voltage at CI with
IN = lo
V
406 Ipu(CWD) Pull-Up Current at CWD
V(CWD) = 0, IN = lo
IN = lo, CWD open
-15
10
-3
µA
µs
407 tpmin
Min. Activation Time for
Watchdog
45
408 Kwd (*)
Constant for Calculating the
Watchdog Activation Time
IN = lo
0.19
0.38
0.57
µs/pF
(*)
tp = (C(CWD) ∗ Kwd) + tpmin (see Applications Information)
ICHAUS [ IC-HAUS GMBH ]
