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SpikeSafe SS200 Precision Pulsed Current Source
High Performance DC and Pulsed
· Precise Current Regulation - 0.1%
· 1 8 channel configurations
· Per channel
- Constant Current to 10A
- Pulsed Current to 10A/10uS 1S
- 200V compliance voltage
· Series drive reduces energy cost/DUT
up to 62%
· SpikeSafeTM protects DUTs SpikeSafe 200 8 channel
for up to 320 5V DUTS
Copyright 2009, Vektrex, Version 2.2 7/7/2009
Overview Industry Standard Current Source Efficient Design Cuts Electricity Use 62%
For applications that benefit from precisely regulated In a typical high power burn-in application, the
current and voltage, the industry standard SpikeSafe lifetime cost of electricity used often exceeds the
200 provides single or multiple drive channels at cost of the equipment itself. The SS200's efficient
voltages to 200V and currents from 0 to 10A. Flexible digital power conversion technology wastes little
operating modes support reliability protocols power, reducing costs by 62% compared with
including: DC, pulsed drive, thermal synchronization, traditional sources.
long duration flash tests, and user programmable
waveforms. Precise current regulation meets LM-80 User configurable load tuning capability
electronic requirements. Programmable load tuning capability adjusts
internal drive circuitry to maintain pulse fidelity and
SpikeSafe Protects Devices and Data fast transition times to accommodate a variety of
Load protection algorithms continuously monitor drive load conditions. Compensation settings include
voltage and current for anomalies. If an anomaly is tuning for cable length, load impedance, and rise
detected, drive is terminated. This shutdown time. User configurable load protection algorithms
preserves the individual device for failure analysis, protect devices.
and it ensures other devices in the circuit are not
damaged, ultimately improving overall reliability.
Applications:
Modular to Fit Small or Large Applications LEDs, Laser Diodes, Solar Cells, Arrays
The modular SS200 packaging may be configured to
Reliability test
support your application. Packaging options include
Stress Screening
· 2U bench top / rack chassis; 1-8 channels
· 9U air-cooled rack crate; 1 64 channels Burn-in and Production Test
· 19" air-cooled rack; 1 256 channels LM-80 Energy Star compliance
· OEM to your needs Characterization
Each channel can power up to 40 series-connected Tj, Thermal Resistance Measurement
5V Devices Under Test (DUTs) for a total capacity of
10,240 DUTs per system.
© Vektrex 2009 For more information see www.vektrex.com or call 858-558-8282
SS200 Precision Pulsed Current Source
Series Drive Capability Reduces Cost/DUT
With 200V compliance, each SpikeSafe 200 channel
can easily drive series circuits with dozens of devices
under test (DUTs). SpikeSafe load protection assures
remaining devices are protected even if one fails.
Optional shunting hardware can automatically bypass
the failed DUTs allowing the remainder to continue
operating without user intervention.
Flexible Power Choices
In the 2U configuration, the SS200 can be powered
from the AC mains. For larger applications such as
volume LED burn-in, the SS200 uses bulk DC power
provided by an external AC-DC supply. This flexibility
simplifies facility wiring and reduces overall system
cost.
LEDs In Series-Driven Reliability Test
Simplified Output Cabling
The SS200 was developed specifically to support DC and pulsed operation in demanding burn-in and life
test situations in which the device under test is mounted in an external chamber or temperature platform.
To keep cost/DUT low, the SS200's programmable load tuning capability adjusts internal drive circuitry to
maintain pulse fidelity and fast transition times with simple twisted pair cables up to 10 meters in length.
Easy To Use Control Software
The Ethernet-controlled SpikeSafe 200 includes
an interactive Control Panel application that may
be used to control and operate from one to eight
source channels. The Control Panel supports all
source modes and it displays voltage and current
readings read back from each source channel. For
larger systems, optional SpikeSafe Test and
Reliability Software STARS is available to
control up to 256 source channels. Custom
applications, such as part characterization and
production test, can also be developed using
available .Net and LabVIEW drivers.
SpikeSafe Test And Reliability Software
FailSafe Temperature Monitoring
In-situ temperature monitoring combined with STARS failsafe rapidly shuts down power to devices when
device temperature exceeds user set thresholds.
Available Stand-Alone or as Turn-Key System
The SS200 can be provided as a stand-alone unit or as part of an integrated system. Integrated systems
may include software and signal distribution hardware that can provide signal expansion to many DUTs
and automatic failed DUT bypass. In-situ Vf, If, Tj, and R monitoring is also supported with available
scanning and logging modules.
© Vektrex 2009 For more information see www.vektrex.com or call 858-558-8282
SS200 Precision Pulsed Current Source
Targeted SpikeSafe Models Available For Many Applications
The versatile SS200 is used for many applications ranging from quantum cascade laser burn-in to high
power laser bar characterization. SS200 models are available to support many common uses. For
applications outside of these, a custom model can be tailored to match a specific requirement. Contact
Vektrex or a Vektrex representative to determine which source is best for a particular application.
Models Features Typical Application
SS200 Standard unit, supports 10uS pulsing, Laser diodes, LED test and burn-in,
5A/channel characterization
SS200 - 10A Standard unit, 10A maximum pulsed current, High current devices
channel
SS200 - 500mA DC 500mA maximum, improved low current Low current DC LED life test, low current devices
performance, DC only
SS200 - Common Anode 1-6 channels Production test of multi-chip modules with common
10A/channel anode connection
Rapid current startup, floating output
SS200FP Fast Pulse Standard unit with extended minimum pulse Laser diodes, LED test and characterization,
(See separate datasheet) width to 1uS, quantum cascade lasers
adds low inductance output section
SS200HC High Current High current model. Channels combined to Laser diode burn-in, rapid characterization, high
(See separate datasheet) supports up to 533A, 100V voltage laser stacks
Options Description Typical Application
Tj Measurement Adds low current 0-25mA measurement Tj, R measurements
current source
Modulated Current Adds modulated current capability Rectifier ripple simulation, camera flash
sequences, power cycling test protocols
Modulated Current Option
The SS200 can provide arbitrary current waveforms with the
Modulated Current Option. This option allows sequences of current
steps to be defined and downloaded. Each step defines the current
amplitude as a percentage of the set point and the step duration.
Sequences can be nested and repeated to support applications
such as rectifier ripple or a camera "red-eye" flash.
Rectifier Ripple Waveform
Cooling Curve (Actual T ~ 20deg C)
Tj Measurement Option 40
35
The Tj Measurement Option adds an adjustable low
Temp (deg C)
30
current measurement current source along with 25
additional firmware that supports junction 20
15
temperature (Tj) and thermal resistance (R) 10
measurements using the JESD51-1 Electrical Test 5
Method (ETM). For more information see the 0
0.0001 0.001 0.01 0.1 1 10
SpikeSafe Tj Measurement Option datasheet.
Time (s)
Cooling Curve Generated with Tj Option
© Vektrex 2009 For more information see www.vektrex.com or call 858-558-8282
SS200 Precision Pulsed Current Source
Standard SS200 Specifications
Output Configuration Pulse Performance
Current Sources: 1-8 channels/module Modes: DC, Single Pulse, Continuous
Type: Differential drive, available floating Pulse, DC Dynamic, Continuous
or ground-referenced Dynamic
Output connector: 16 pin Molex Mini-fit JR Time base Accuracy: +/-50 ppm
Remote Control Pulse Width Range: 10uS 1S
Physical: 100-base T Ethernet Pulse Width Resolution: 10nS
Protocol: TCP/IP Pulse Repetition Frequency 0.0025 Hz 33 kHz
Command Set: SCPI Pulse Width Accuracy: +/- 0.1% +/- 1uS, measured at 1A
Drivers: .NET, LabVIEW Rise/Fall Time: 1-10uS depending upon
Read back Capability: Voltage, current for each channel, compensation settings*
fault conditions SpikeSafe Load Protection
Power Conversion Startup Shock: Eliminated with 1S soft ramp-up
Type: DSP-controlled two-stage step Current Anomaly: Typically limited to less than
down regulator 400mA peak. Controlled to 5% of
Output Power: 1000W/channel maximum setpoint within 3uS
Losses: 20W/channel losses typical, 2-3x Current Anomaly Shutdown: Automatic shutdown when
higher during current start-up anomaly exceeds programmed
Duty Cycle: Rated for continuous operation threshold, shutdown within 3-10uS
Cooling: Forced air Voltage Anomaly: Detected and logged, optional
Current Source Performance automatic channel shutdown
Output Current Range: 0 5A per channel, see other Edge Undershoot: Limited to 100uA
models for higher or lower currents Edge Overshoot: Limited to 20% for fast edge
Maximum Compliance Voltage: 200V setting; 0% slow edge setting
Setpoint Resolution: 100uA Leakage Current: Shutdown within 20mS of
Absolute Accuracy: 0.1%+2mA 0-5A, +/-1mA typical cathode/anode current imbalance
Setpoint Stability: +/- 50 ppm after 8 minute warm-up
Output Current Ripple: 0.2% p-p typical, 200kHz, at 1A
Input Power
AC (2U Chassis): 90-240V, 400W maximum
Logic: 15VDC, 1.5A
Bulk (If DC Bulk Used): 0-220V, 40A maximum
Bulk connector: 2 pin Molex Mini-fit SR
Physical
Weight: 27 lbs
Size: 2U rack mount 24.5"vx 19" x 3.5"
Other
Trigger Output: Active low, 13uS after pulse start *Typical 5A, 10 uS current pulse
Isolated Disable: Halts current output showing 1uS rise time, flat top, and
controlled fall time
CompuMess Elektronik GmbH
For more information see www.vektrex.com
Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
Telefon (089) 32Contact: Melissa Ford 32 15 01 - 11
15 01 - 0 · Telefax (089)
info@compumess.de · 558-8282 x6
Phone: (858) www.compumess.de
melissa@vektrex.com
www.netzteile.de
© Vektrex 2009 For more information see www.vektrex.com or call 858-558-8282