IC-WJ Datasheet, PDF (5/12 Pages) IC-Haus GmbH – LASER DIODE DRIVER

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 Parameter
No.
Conditions
Tj Fig.
°C
Min.
303 RSET
Permissible Resistor at ISET
2.7
(Control Set-up Range)
304 Toff
Thermal Shutdown Threshold
125
305 Thys
Thermal Shutdown Hysteresis
10
Power-Down and Watchdog
401 VCCon Turn-on Threshold VCC
3.5
27
402 VCCoff Undervoltage Threshold at VCC
3.2
403 VCChys Hysteresis
VCChys = VCCon − VCCoff
300
27
404 Vs(CI)off
405 Vs(CI)wd
Saturation Voltage at CI with
undervoltage
Saturation Voltage at CI with
IN = lo
I(CI) = 300 µA, VCC < VCCoff
I(CI) = 300 µA, t(IN = lo) > tp ^(*)
406 Ipu(CWD) Pull-Up Current at CWD
V(CWD) = 0, IN = lo
-15
407 tpmin
Min. Activation Time for
IN = lo, CWD open
10
Watchdog
408 Kwd ^(*)
Constant for Calculating the
IN = lo
0.19
Watchdog Activation Time
(*) _{tp = (C(CWD) ∗ Kwd) + tpmin (see Applications Information)}
Typ.
3.8
400
0.38
Unit
Max.
50
kΩ
150 °C
40
°C
4.3
V
V
3.8
V
450 mV
mV
1.6
V
1.5
V
-3
µA
45
µs
0.57 µs/pF