50W isolated DC-DC converter Ultra-wide input and regulated single output

Descriptions

TheUWTH1D_QB-50W(H/F)R3Sseriesisahigh-performanceproductspeccalydesignedforavarietyofrailwayaplications.Theoutput powercanreachat50W. Itfeatureswideinputvoltageof 14-160VDC, whichiscompatiblewithnominalinputtypeof24V, 48V, 72V, 96V and 110V.MetsEN5015standardforvoltagefluctuations.Thereinforcedhighinsulation30VACensuresthatthesystemcanstilbeused safelyin50mhighaltitudeaplications.Thealowableoperatingtemperatureisupto 105C.Itintegratesmultipleprotectionfunctionsto ensurethesafetyandhighreliabilityofthesystem,withfunctionsofremotecontrolandcompensation, outputvoltageadjustment, etc., whichperfectlymatchestherequirementsoflinelosandspecialvoltageintheaplication.Itiswidelyusedinvehicle-mountedswitches, traincontrolsystemsandasociatedequipment

FEATURES

• Ultra-wide 12: 1 input voltage range: 14 - 160VDC
• High efficiency up to 90%
• Reinforced insulation, I/O isolation test voltage 3k VAC
• Operating ambient temperature range -40C to + 105C
• Active hold-up control, programmable input under-voltage control
• Input reverse polarity protection, Input under-voltage protection, output over-voltage, over-current, short-circuit protection, over-temperature protection
• Industry standard 1/4-Brick package
• Design to meet AREMA standards
• Design to meet UL62368 standards

Specifications

Selection Guide
Certification	Part No.①	Input Voltage (VDC)		Output		Full Load Efficiency(%)③ Min./Typ.	Max. Capacitive Load(µF)
		Nominal (Range)	Max.	Voltage (VDC)	Current (mA) (Max./Min.)
CSA/EN/ BS EN/IEC	UWTH1D12QB-50W(H/F)R3S	1 10 (14- 160)	160	12	4160/0	88/90	3500
	UWTH1D15QB-50W(H/F)R3S			15	3330/0		2200
	UWTH1D24QB-50W(H/F)R3S			24	2080/0	86/88	1000
	UWTH1D28QB-50W(H/F)R3S			28	1790/0		1000
	UWTH1D48QB-50W(H/F)R3S			48	1040/0	88/90	470
	UWTH1D54QB-50W(H/F)R3S			54	930/0		470
Note: ①Use“F/H”suffix for heat sink mounting. We recommend to choose modules with a heat sink for enhanced heat dissipation and applications with extreme temperature requirements; ②Exceeding the maximum input voltage may cause permanent damage; ③Efficiency is tested at nominal voltage 48V and full load at +25C ambient.

Input Current (full load)	110V input voltage	24V, 28V output	--	522	534	A
		12V, 15V, 48V, 54V output	--	506	517
Reflected Ripple Current	Nominal input voltage		--	150	--
Surge Voltage (1sec. max.)			-0.7	--	200	VDC
Start-up Voltage			--	--	14
Start-up Current	Nominal 48 input voltage, full load		--	--	2500	A
Start-up Time	Nominal input voltage, constant resistance load		--	50	100	ms
Input Filter			LC filter
Hot Plug			Unavailable
No-load Input Power	Ctrl pin open or pulled high, DC-DC ON ( 14- 160VDC)		--	1.2	2.0	W
Idle Input Power	Ctrl pin pulled low to -Vin, DC-DC OFF ( 14- 160VDC)		--	0.7	1.6
Ctrl①	Module on		Ctrl pin open or pulled high (3.5- 12VDC)
	Module off		Ctrl pin pulled low to -Vin (0- 1.2VDC)
Input Under-voltage Protection			10	1 1	--	VDC
UVLO②	Operating temperature range, UVLO pin open, module off		10	--	--	VDC
	Operating temperature range, UVLO pin connect to -Vin, module off		60	--	--
Note: ①The Ctrl pin voltage is referenced to input -Vin; ②The UVLO pin voltage is referenced to input -Vin, please refer to Fig. 9.