URA24_YMD-20WR3 URA2403YMD-20WR3 --EngrWorld

10. It is sealed with high quality environmental protection waterproof and thermal conductive glue, moisture proof and vibration proof, and meets the requirements of waterproof and dust proof IP65.

11. High reliability, long life design, long continuous working time

Enviroment Condition

Project name	Qualification	Unit	Notes
Working enviroment temperature	-40—+85	℃
Storage temperture	-40—+125 ℃	℃
Relative humidity	5—95	%
Heat dissipation mode	natural cooling
Atmospheric pressure	80—106 Kpa	Kpa
Vibrate	Vibration coefficient 10~55Hz,10G，30min. along X,Y,Z		Meet the requirements of secondary road transportation

Input Characteristics

Item	Working conditions		Min.	Typ.	Max.	Unit
Input current (full load/no load)	24VDC Input Series	±5V/±9V	-	957/25	980/35	m'A
		±12V	-	926/1	947/2
		±15V	-	926/1	937/2
		±24V	-	916/1	937/2
	48VDC Input Series	±5V/±9V	-	484/1	496/1.5
		±12V	-	458/1	469/1.5
		±15V	-	458/1	469/1.5
		±24V	-	458/2	469/1.5
Reflection ripple current		--		40	--	m'A
Impulse voltage (lsec.max）	24VDC Input Series		-0.7	--	50	VDC
Impulse voltage (lsec.max）	48VDC Input Series		-0.7	--	100
Start Voltage	24VDC Input Series		-	-	9
Start Voltage	48VDC Input Series		-	-	18
Input undervoltage protection	24VDC Input Series		5.5	6.5	-
Input undervoltage protection	48VDC Input Series		12	15.5	-
Input filter type		PI type
Hot plugged		Non-support

Output Characteristics

Project name	Working and testing condition	+Vo1			-Vo2
		Min.	Typ.	Max.	Min.	Typ.	Max.
Output load	load percentage	0%	-	100%	0%	-	100%
Output voltage accuracy		-	±1.0%	±2.0%	-	±2.0%	±3.0%
Linear adjustment rate	input voltage range	-	±0.2%	±0.5%	-	±1.5%	±2%
Load adjustment rate	20%-100% rated load, balanced load	-	±0.5%	±1.0%	-	±4.0%	±5.0%
Ripple & Noise	Pure resistive load,20MHz broadband, peak to peak, 5%-100% load	-	50mVp-p	80mVp-p	-	50mVp-p	80mVp-p
Start time delay		-	1ms	-	-	1ms	-
Input vlotage adjustment	input voltage range	-	-	±10%	-	no adjustment	-
Dynamic response step deviation	25% nominal load step	-	±3.0%	±5.0%	-	±3.0%	±5.0%
Dynamic response recovery time	25% nominal load step	-	300μs	500μs	-	300μs	500μs
Output overvoltage protection	full voltage input range	110%Vo	-	160%Vo
Output overcurrent protection	full voltage input range	110%lo	150%lo	200%lo
Output short circuit protection	full voltage input range			sustainable, self-recovery

Note:

(1) For product model with output voltage ±5VDC or ±9VDC , the maximum output voltage accuracy is ±5% under 0% - 5% load condition

(2) When tested according to the 0%-00% load working condition, the load adjustment rate is ±5%

(3) 0%-5% load ripple & noise less than or equal to 5% Vo. Ripple and noise test method, Twisted pair test method, can add capacitive load at the output to reduce light load ripple

Typical Application Circuits

EMC parameter recommendation

Component No.	Function	Recommended value
Fuse	Protest the circuit from damage when the module is abnormal	Access the corresponding fuse accrding to customer needs
MOV/Varistor	Protest the circuit from damage when the module is abnormal	14D560K
LDM1/Common mode inductance	EMI Filtering	Inductance: 10mH
CO,C1 Ceramic capacitors	Filter capacitor	1uF/50V
E1,E2 Electrolytic capacitor	Filter capacitor	100uF/50V
LDM2/Differential mode inductance	EMI filtering	4.7-68uH
CY1/Y2 Capacitance		1nF/250vAC

Notes：

* Fuses and varistors are basic parts of protection circuits (required).

* If the certification is required, the safety capacitor and common mode inductance cannot be omitted.

Output filtering

For usual requirements of ripple and noise, the peripheral recommendation is only C2;

For strict requirements of ripple and noise, the above circuit is recommended. Notes:

(1) C2, C3 use high frequency low resistance electrolytic capacitor, and the total capacity can not exceed the maximum capacitive load indicated in the manual, otherwise the module will not start normally. (2) When the capacitive load is used, the minimum load of 3% must be guaranteed, otherwise the module output will be abnormal.

Component No.	Function	Recommended value
LDM3/Common mode inductance	Adjust the output ripple voltage	Inductance: 0.47-4.7uH according to the debugging result
LDM4/Common mode inductance	Adjust the output ripple voltage	Inductance: 0.47-4.7uH according to the debugging result
C2,C3 Electrolytic capacitor	Ripple voltage filtering	68-220uF/50V
C4 Ceramic capacitors	Ripple voltage filtering	1uF/50V

Dimension and Weight

1	2	3	4	5	6
VIN-	VIN+	VO+	TRIM	GND	CTRL
Input negative	Input positive	Output positive	Voltage regulator	Output negative	Remote end

	类型	描述
	产品类型	DC-DC模块
	制造商	Shenzhen Hi-Link
	厂牌	Hi-Link
	封装/性能	DIP Package
	功能类型	DC-DC Isolated Power Module
	转换效率	85%~91%
	工作电压（Vin)	24VDC
	输出电压精度	±1.0%~±2.0%
	输出功率	20W
	静态电流（lq)	1mA
	开关频率	250kHz (Typical)
	纹波噪声	50~80mVp-p
	工作温度	-40℃ ~ +85℃

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