Intensify Nx50

Intensify Nx50
Device type	Laser diode driver
Control modes	Current control
Status	End of Life
Electrical
DC supply voltage	12 ± 1 VDC
Output current range	0.1 - 50A × number of stacked boards
Setpoint signals	Analog reference for current control, Digital signals for enable & pulsing
Protections	Over temperature, under voltage, short circuit, ESD, laser diode protection
LD forward voltage	0.8 .. 5.0 VDC
Ripple current (typ @ 50A)	0.2A RMS, 1.25A pk-pk
General
Dimensions	94×77.5×15 mm (3.7"×3.1")
Configuration tool	No software tools needed
Web site	Intensify product site
3D model	IGES, STEP & 2D PDF

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

Three Nx50 boards connected parallel by stacking

Nx50 (single board) efficiency vs load current at various laser diode forward voltages

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	96	%	Efficiency when IO > 20A and VO = 5V

(1) For single Nx50 board. Multiply this by the number of stacked Nx50 boards.

Timing 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

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

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	51k (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	≤ 1k (2)	Ω
Voltage monitor output voltage	0..5.0	V	Represents LD voltage drop 1:1
Voltage monitor output impedance	≤ 1k (2)	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 (IO=100% of setpoint) Logic HIGH: 4.5..26 V (IO=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.

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

Mechanical & environmental

Property	Value	Units	Remarks
Dimensions	94×77.5×15 (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	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

Purchasing

This product is at its End of Life. For final order and support plan, see EOL notification.

Setup guide

• Intensify Nx50 setup & user guide

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