Junction Temperature

Bias Current Add-On

Overview

Vektrex Pulsed Source Measure Unit (PSMU) offers an integrated BIAS card optimized for thermal measurements. We are expert in thermal measurements. The BIAS option is available for integration with the SMU and the High Current SMU.

Diagram describing the different areas of an LED undertest, highlighting the junction temperature are the very top. — LED Thermal Management System

Applications

Junction temperature measurement using the JEDEC method
Empirically determine the operating temperature for your products
Execute JEDEC Dual Interface Test Method to validate use of thermal materials
In-situ junction temperature measurement of LED modules
Materials Research

All About Thermal Measurements

Learn all about thermal measurements and thermal measurement capabilities enabled when the BIAS option is selected.

Specifications

Bias Current Specifications	0.05 A – 10 A	10 A HC	20 A HC	40 A HC	60 A HC	80 A HC
Max Current	33 mA	66 mA	132 mA	264 mA	264 mA	264 mA
Setpoint Resolution	1 μA	2 μA	4 μA	8 μA	8 μA	8 μA
Bias Current Accuracy	0.35%+60 μA	0.35%+60 μA	0.35%+120 μA	0.35%+240 μA	0.35%+480 μA	0.35%+480 μA
Fall Time to Bias Current	200 ns – 3 μs	200 ns – 3 μs	200 ns – 3 μs	200 ns – 3 μs	200 ns – 3 μs	200 ns – 3 μs
5% Settling Time After Falling Edge	10 – 70 μs	10 – 70 μs	10 – 70 μs	10 – 70 μs	10 – 70 μs	10 – 70 μs
0.1% Settling Time After Falling Edge	70 – 130 μs	70 – 130 μs	70 – 130 μs	70 – 130 μs	70 – 130 μs	70 – 130 μs