ic-wkm iC-Haus, ic-wkm Datasheet
ic-wkm
Related parts for ic-wkm
ic-wkm Summary of contents
Page 1
... M-TYPE CW LASER DIODE DRIVER FEATURES Optimised for M-type laser diodes (single supply, case grounded) CW operation up to 350 mA from a single supply of 3 Rapid soft start after power-on Simple power adjustment via an external resistor Integrated reverse polarity protection for the iC and laser diode Strong suppression of transients with small external capacitors ...
Page 2
... M-TYPE CW LASER DIODE DRIVER DESCRIPTION iC-WKM is a driver for laser diodes in continuous wave operation with laser currents 350 mA, which requires only four external components. The wide power supply range allows for op- eration of blue laser diodes, e.g. by Nichia or Sanyo. ...
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... M-TYPE CW LASER DIODE DRIVER PACKAGES SO8tp, DFN10 JEDEC standard PIN CONFIGURATION SO8tp (top view GND 3 AGND 4 MDK The Thermal Pad connected to a Ground Plane on the PCB. Do not short-circuit pins AGND and GND, for this may deteriorate the precision of the regulator and interfere with the soft-start! ...
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... M-TYPE CW LASER DIODE DRIVER ABSOLUTE MAXIMUM RATINGS Beyond these values damage may occur; device operation is not guaranteed. Item Symbol Parameter No. G001 VCC Voltage at VCC G002 I(VCC) Current in VCC G003 I(CI) Current in CI G004 I(LDA) Current in LDA G005 I(VCCA) Current in VCCA G006 I(MDA) ...
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... M-TYPE CW LASER DIODE DRIVER ELECTRICAL CHARACTERISTICS Operating Conditions: VCC = 3.6... ...100 -40...125 °C unless otherwise noted Item Symbol Parameter No. Total Device 001 VCC Permissible Supply Voltage 002 I(LDA)m Permissible Laser Drive Current 003 Idc(VCC) Supply Current without load path closed control loop, I(MDK ...
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... M-TYPE CW LASER DIODE DRIVER ELECTRICAL CHARACTERISTICS Operating Conditions: VCC = 3.6... ...100 -40...125 °C unless otherwise noted Item Symbol Parameter No. Control Release Flip-Flop 301 VCCen Set Threshold for Enable Flip-Flop 302 Toff Overtemperature Shutdown Conditions Tj °C Rev C1, Page 6/9 Fig. ...
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... Time Figure 1: Turn-on behaviour Turn-off behaviour iC-WKM works without a fixed undervoltage lockout, thus the laser diode forward voltage is the prime factor determining the lowest possible supply voltage. If the voltage drops below this value, the output stage is forcibly saturated and the laser current decreases. ...
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... In this instance the laser diode could be damaged (re- sulting in spottiness and an increase in operating cur- rent) or even destroyed before the overcurrent shut- down threshold in iC-WKM is reached. This applies in particular to blue laser diodes whose power dissipation is considerably higher than that of red laser diodes, for example, due to the higher forward voltage ...
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... For information about prices, terms of delivery, other packaging options etc. please contact: iC-Haus GmbH Am Kuemmerling 18 D-55294 Bodenheim GERMANY Package Order Designation SO8tp iC-WKM SO8 DFN10 iC-WKM DFN10 iC-WKM EVAL WKM1D Tel.: +49 (61 35) 92 92-0 Fax: +49 (61 35) 92 92-192 Web: http://www.ichaus.com E-Mail: sales@ichaus.com Rev C1, Page 9/9 ...