P-DUKE HEC50-24S3P3, HEC50-24S2P5-S, HEC50-24S2P5-M, HEC50-24S2P5-L, HEC50-24S2P5 Datasheet

	• SINGLE OUTPUT UP TO 15A
	• INDUSTRY STANDARD FOOTPRINT
	• ADJUSTABLE OUTPUT VOLTAGE
	• NO MINIMUM LOAD
	• UNDER-VOLTAGE LOCKOUT
	• HIGH EFFICIENCY UP TO 91%
	• COMPACT 2.40 X 2.28 X 0.50 INCH PACKAGE
	• FIXED SWITCHING FREQUENCY
	• HALT TESTED
	HEC50-S single output DC/DC converters provide up to 50 watts of output power in an
	industry standard half-brick package and footprint. These units are specifically
UL E193009	designed to meet the power needs of low-voltage silicon. All models feature a wide
	input range, trimmable output voltage and a 15A current rating. Remote sense and
TUV R50020744	remote on/off facilities are included as standard, and the converters are
CB JPTUV-5363	comprehensively protected against over-current, over-voltage and over-temperature
CE MARK	conditions. The HEC50 converters are especially suited to telecom, networking and
	industrial application.

T E C H N I C A L S P E C I F I C AT I O N All specifications are typical at nominal input, full load and 25ºC otherwise noted

OUTPUT SPECIFICATIONS

	Output power					50 Watts max
	Voltage accuracy	Full load and nominal Vin				± 1.5%
	Voltage adjustability (Note 1)					+ 10% , -20%
	Minimum load					0%
	Line regulation	LL to HL at FL				See table
	Load regulation	0% to 100% FL				See table
	Remote sense (Note 1)					10% of Vout
	Ripple and noise(Note 2) 20MHz bandwidth					100mVp-p
	Temperature coefficient				s0.02% / ºC, max
	Transient response	25% load step change				200uS
	recovery time
	Over voltage protection threshold (Hiccup)				115% ~ 130% of Vout
	Over current protection threshold				110% ~ 140% of Iout Rated
	Short circuit protection				Hiccup, automatics recovery
	INPUT SPECIFICATIONS
	Input voltage range	24V input				18 – 36VDC
		48V input				36 – 75VDC
	UVLO start-up voltage	24V input				17V typ.
		48V input				34V typ.
	UVLO shuntdown voltage	24V input				15V typ.
		48V input				32V typ.
	Input filter (Note 3)					L-C type
	Input voltage variation	dv/dt				5V/ms,max
			(Complies with ETS300 132 part 4.4)
	Input surge voltage 100mS max			24V input		50VDC
				48V input		100VDC
	Start up time	Nominal Vin and constant				25mS typ.
		resistive load
	Input reflected-ripple current				24V input	50mAp-p
	(5Hz to 20 MHz, 12uH source impedance) 48V input					20mAp-p
	Remote ON/OFF(Note 4)
	(Positive logic)	ON=Open or 3.5V < Vr < 15V,				IIN=50 $ max.
		OFF=Short or 0V < Vr < 1.2V,				IIN=1m$ max.
	(Negative logic)	ON=Short or 0V < Vr < 1.2V,				IIN=1m$ max.
		OFF=Open or 3.5V < Vr < 15V,				IIN=50 $ max.

GENERAL SPECIFICATIONS

	Efficiency					See table
	Isolation voltage			Input to Output		1600 VDC, min.
				Input to Case		1000 VDC, min.
				Output to Case		1000 VDC, min.
	Isolation resistance					107 ohms, min
	Isolation capacitance					2500 pF, max
	Switching frequency					300 KHz, typ
	Approvals and standard (Note 5)				IEC60950, UL60950, EN60950
	Case material				Open with Aluminum base-plate
	Weight					50g (1.76 oz)
	MTBF Bellcore TR-NWT-000332, Tc=40 , Io=80%, max.					3 x 106 hrs
		ENVIRONMENTAL SPECIFICATIONS
	Operating base-plate temperature range (Note 6)					-40ºC to +100ºC
	Over temperature protection					110ºC
	Humidity max, Non-condensing					95%
	Storage temperature range					-55ºC to +125ºC
	Thermal shock					MIL-STD-810D
	Vibration		10~55Hz, 2G, 3minutes period, 30minutes along X,Y and Z
		EMC CHARACTERISTICS
	Conducted emissions			EN55022 (Note 7)		Level A
				EN55022 (Note 7)		Level B
		Radiated emissions		EN55022		Level A
		ESD		EN61000-4-2		Perf. Criteria2
		Radiated immunity		EN61000-4-3		Perf. Criteria2
		Fast transient		EN61000-4-4		Perf. Criteria2
		Surge		EN61000-4-5		Perf. Criteria2
		Conducted immunity		EN61000-4-6		Perf. Criteria2