Intensify Nx50
Intensify Nx 50 is a 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 up to 150A. Intensify is intended for OEM applications such as fiber laser pumping, laser tooling and laser diode burn-in.
| Intensify Nx50 | |
|---|---|
| 280px | |
| Device type | Laser diode driver |
| Control modes | Current control |
| Status | In production & available from stock |
| Electrical | |
| DC supply voltage | 11-13 VDC |
| Output current range | 0.1 - 50A × number of stacked boards |
| Setpoint signals | Analog reference for current control, Digital signals for enable & pulsing |
| Feedback devices | On-board current & voltage sensing |
| Protections | Over temperature, under voltage, short circuit, laser diode protection |
| LD forward voltage | 0.8 .. 5.0 VDC |
| Ripple current (typ @ 50A) | 0.2A RMS, 1.25A pk-pk |
| General | |
| Dimensions | 94×77.5×17 mm |
| Configuration tool | No software tools needed |
| Web site | |
Contents
Technical specifications
Power
| Property | Value | Units | Remarks |
|---|---|---|---|
| Supply voltage | 12 +/- 1 | V | |
| Supply current | 0.1 - 23 (1) | A | Depends on output power |
| Max output power | 250 (1) | W | 50A @ 5.0V |
| Output voltage | 0.8 - 5.0 | V | Determined by laser diode voltage drop |
| Output current | 0 - 50 (1) | A | Continuous rating |
| Efficiency | 95 | % | Efficiency when Io > 20A and Vo = 5V |
(1) For single Nx50 board. Multiply this by the number of stacked Nx50 boards.
Time properties
| 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
| Property | Value | Units | Remarks |
|---|---|---|---|
| Current setpoint voltage | 0..10 | V | 0..10 V sets LD current between 0..50 A (1) |
| Current setpoint input impedance | 50k (2) | Ω | Differential input |
| Current monitor output voltage | 0..10 | V | 0..10 V represents LD current between 0..50 A |
| Current monitor output impedance | < 3k (2) | Ω | |
| Voltage monitor output voltage | 0..5.0 | V | Represents LD voltage drop 1:1 |
| Voltage monitor output impedance | < 3k (2) | Ω | |
| Enable input voltage |
|
V | Enable is 3.3V, 5V and 12V logic compatible |
| Pulse input voltage |
|
V | Pulse is 3.3V, 5V and 12V logic compatible. Pulse high outputs current defined by setpoint, pulse low outputs current 0.035*setpoint. |
(2) For single Nx50 board. Divide this value by the number of stacked Nx50 boards.
Mechanical & environmental
| Property | Value | Units | Remarks |
|---|---|---|---|
| Dimensions | 94×77.5×17 | mm | W×H×D |
| Operating temperature range | -40..85 | °C | Non condensing. Output rating may derate at high temperature without forced convection |
| Reliability MTBF | 1.5 | 106 Hrs | Per Bellcore TR-332 50% stress, Tamb = 40 °C |
| ESD protection | Exceeds ESD Protection to IEC61000-4-2 Level 4, ±12 kV discharge | All I/O lines |
Literature
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