Editing Intensify Nx50

{{Infobox drive
| drivetype          = Laser diode driver
| image         = [[Image:nx50single.JPG|280px]]
| controlmodes = Current control
| production = In production & available from stock
| voltage = 12 ± 1 VDC 
| currentrange = 0.1 - 50A × number of stacked boards
| referencesignals=[[Analog reference]] for current control, Digital signals for enable & pulsing
| configtool=No software tools needed
| url=[http://granitedevices.com/index.php?q=oem-laser-bar-diode-driver Intensify product site]
| protections=Over temperature, under voltage, short circuit, ESD, laser diode protection
| dimensions=94×77.5×15 mm (3.7"×3.1")
| other_label=LD forward voltage
| other_data=0.8 .. 5.0 VDC
| other_label2=Ripple current (typ @ 50A)
| 3dmodel=[[Media:Nx50 2d 3d.zip|IGES, STEP & 2D PDF]]
| other_data2=0.2A RMS, 1.25A pk-pk
}}
'''Intensify Nx 50''' is a compact stackable constant current laser diode bar driver featuring the latest multiphase switched-mode topology delivering up to 50A continuous current at unforeseen efficiency. Parallel capability allows stacking multiple Intensify boards to scale up the current to 150A and beyond. Intensify is intended for OEM applications such as fiber laser pumping, laser tooling and laser diode burn-in.
==Overview==
Nx50 is one of the first laser diode drives deploying an state of the art high frequency three-phase switching converter. Each driver has three switching regulator running in separate time phases to minimize output ripple and passive component sizes.

*Designed for CW/QCW laser bar driving
*50 A, 250 W constant output per board
*Small form factor of 94×77.5 mm / 3.7"×3.1"
*Parallel by stacking, scale to 150 A and beyond
*Laser diode current & voltage spike protection
*Overtemperature, undervoltage, ESD and short circuit proof
*Fully differential analog 0-10 V [[setpoint]] input
*Current and voltage monitor 0-10 V outputs
*Pulsing via digital pulse input or analog modulation
*OEM friendly pricing

==Technical specifications==
===Power===
[[File:Nx50stack with text.jpg|thumb|right|Three Nx50 boards connected parallel by stacking|290px]]
[[File:IntensifyEfficiency.png|thumb|right|Nx50 (single board) efficiency vs load current at various laser diode forward voltages|290px]]
{| class="wikitable"
|-
! Property !! Value !! Units || Remarks
|-
| Supply voltage || 12 ± 1 || V ||
|-
| Supply current || 0.1 - 23 <sup>(1)</sup>|| A || Depends on output power
|- 
| Max output power || 250 <sup>(1)</sup>|| W || 50A @ 5.0V
|- 
| Output voltage || 0.8 - 5.0 || V || Determined by laser diode voltage drop
|- 
| Output current || 0 - 50 <sup>(1)</sup>|| A || Continuous rating
|- 
| Efficiency || 96 ||% || Efficiency when I<sub>O</sub> > 20A and V<sub>O</sub> = 5V
|}
(1) For single Nx50 board. Multiply this by the number of stacked Nx50 boards.

===Timing properties===
{| class="wikitable"
|-
! Property !! Value !! Units || Remarks
|-
| Pulsed LD current rise time || 0.5 typ || ms || Current rise from 10% to 90% of setpoint
|-
| Pulsed LD current rise time || 0.6 typ || ms || Current fall from 10% to 90% of setpoint
|-
| Enable delay || < 60 || ms || From disabled to enabled state
|-
| Disable delay || < 2 || ms || From enabled to disabled state
|-
| Power-up/down sequence || Any order. Any I/O line states not causing spiking above setpoint || ||
|-
|}

===Inputs/outputs===
====List of I/O====
*Enable, digital 5-24V logic
*Pulse, digital 5-24V logic
*Current [[setpoint]] input, analog 0-10 V
*Current monitor output, analog 0-10 V
*Voltage monitor output, analog 0-5 V
====Characteristics====
{| class="wikitable"
|-
! Property !! Value !! Units || Remarks
|-
| Current [[setpoint]] voltage || 0..10|| V || 0..10 V sets LD current between 0..50 A <sup>(1)</sup>
|-
| Current setpoint input impedance ||51k <sup>(2)</sup> || Ω|| Differential input
|-
| Current monitor output voltage || 0..10|| V || 0..10 V represents LD current between 0..50 A
|-
| Current monitor output impedance  || ≤ 1k <sup>(2)</sup>||Ω||
|-
| Voltage monitor output voltage || 0..5.0 || V || Represents LD voltage drop 1:1
|-
| Voltage  monitor output impedance  || ≤ 1k <sup>(2)</sup> || Ω||
|-
| Enable input voltage ||
*Logic LOW: -0.3..0.6 V or open circuit = disabled
*Logic HIGH: 4.5..26 V = enabled 
|| V || Enable is 5V, 12V and 24V logic compatible
|-
| Pulse input voltage ||
*Logic LOW: -0.3..0.6 V or open circuit (I<sub>O</sub>=100% of setpoint)
*Logic HIGH: 4.5..26 V (I<sub>O</sub>=3.5% of setpoint)
|| V || Pulse is 5V, 12V and 24V logic compatible. When Pulse input is logic HIGH, outputs current is directly defined by [[setpoint]], logic LOW reduces output current to 0.0035*setpoint.
|}
(1) For single Nx50 board. Multiply this by the number of stacked Nx50 boards.<br />

(2) For single Nx50 board. Divide this value by the number of stacked Nx50 boards.

===Mechanical & environmental===
{| class="wikitable"
|-
! Property !! Value !! Units || Remarks
|-
| Dimensions || 
*94×77.5×15 (PCB)
*107×77.5×15 (with J1 hooks)
|| mm || W×H×D
|-
| Operating temperature range || -40..85  || °C || Non condensing. Output rating may derate at high temperature without forced convection
|-
| Reliability MTBF || 1.2 || 10<sup>6</sup> Hrs || Per Bellcore TR-332 50% stress, T<sub>amb</sub> = 40 °C 
|-
|ESD protection|| Exceeds ESD Protection to IEC61000-4-2 Level 4, ±12 kV discharge||||All I/O lines
|}

==Purchasing==
Intensify Nx50 is available from stock through [http://shop.granitedevices.com/product/46/intensify-nx50-laser-diode-driver Granite Devices web shop]. Item ships world wide.

==Setup guide==
* [[Intensify Nx50 setup guide|Intensify Nx50 setup & user guide]]