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IC-NZN Datasheet(PDF) 2 Page - IC-Haus GmbH |
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IC-NZN Datasheet(HTML) 2 Page - IC-Haus GmbH |
2 / 17 page iC-NZN N-TYPE LASER DIODE DRIVER Rev C1, Page 2/17 DESCRIPTION Laser diode pulse driver iC-NZN allows CW opera- tion of laser diodes and spike-free switching with de- fined current pulses up to 155 MHz. The optical out- put power of the laser diode is set-up by means of an external resistor (RMD/PMD). For laser current con- trol without a monitor diode, the laser current moni- tor at pin IMON is utilised. For high pulse frequen- cies the device can be switched into controlled burst mode. A previously settled operating point is main- tained throughout the burst phase. An averaging current monitor can be set by means of an external resistor at pin RSI. When the current limit is reached, overcurrent is signalled at NERR and the current from pin LDA is limited to the pre-set value but the iC is not shut down. There is an additional current limitation in pin LDK that prevents the iC from overpowering the laser diode. Setting pin NSLP low, the iC enters a low consump- tion sleep-mode (< 50 µA typ.). PACKAGING INFORMATION QFN24 4 mm x 4 mm to JEDEC PIN CONFIGURATION 7 8 9 10 11 1 2 3 4 5 13 14 15 21 22 6 12 16 17 19 20 18 23 24 NZN code... ... PIN FUNCTIONS No. Name Function 1 VDD Power Supply 2 AVG Enable Averaging Control 3 MD APC setup, monitor input 4 IMON Laser Current Monitor 5 CID Enable Pulldown Current at CI 6 EP Positive LVDS/TTL switching input 7 EN Negative LVDS switching input 8 TTL Enable TTL input 9 VSY Sync Output Supply Voltage 10 SYN Sync Output 11 RGND Reference Ground 12 RVDD Reference (P-type laser diodes) 13 LDK Laser Diode Cathode 14 AGND Analog ground 15 CIS Power Control Capacitor sense 16 CI Power Control Capacitor 17 LDA Laser Diode Anode 18 n/c 19 RSI Current Monitor Setup 20 REGE Control Enable 21 GND Ground 22 NSLP Not Sleep-Mode 23 NERR Error Output 24 n/c The Thermal Pad is to be connected to a Ground Plane (GND) on the PCB. Only pin 1 marking on top or bottom defines the package orientation ( NZN label and coding is subject to change). |
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Similar Description - IC-NZN_14 |
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