TDK iEB Series manual Thermal Performance, 8/12, TDK Innoveta Inc, 10/29/2007

Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter

Thermal Performance:

iEB48017A120V-000 through -007: 12V, 17A Output
	18											18
	16
												16
	14
Output Current (A)											Output Current (A)	14
	12
												12
	10
			NC									10
	8
			0.5 m/s (100 LFM)									8			NC
															0.5 m/s (100 LFM)
	6		1.0 m/s (200 LFM)									6
															1.0 m/s (200 LFM)
	4		2.0 m/s (400 LFM)									4
															2.0 m/s (400 LFM)
	2		Tc MAX
												2			Tc MAX
	0
												0
	25	35	45	55	65	75	85	95	105	115	125
													25	35	45	55	65	75	85	95	105	115	125
				Temperature (oC)															o	C)
																	Temperature (

iEB48017A120V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 400lfm with airflow from pin 3 to pin 1.

iEB48017A120V-000 maximum output current vs. ambient temperature at nominal input voltage for airflow rates natural convection (60lfm) to 600lfm with airflow from output to input.

	1.3
Factor	1.2
	1.1
Derating	1.0
	0.9
	0.8
	0.7
	35	40	45	50	55	60
			Input Voltage (V)

iEB48017A120V-000 thermal measurement location – top view

iEB48017A120V-000 typical current derating versus line voltage with airflow = 1m/s (200lfm) and load current greater than 4A.

Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s experimental test setup that is described in the Thermal Management section. Due to the large number of variables in system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application. The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the critical component for system verification tests.

©2004-2007 TDK Innoveta Inc.	￿ (877) 498-0099
10/29/2007	8/12