28V 4A, 7V 4A Multi-Outputs Power Supply

• Output Type: Multiple
• Warranty: 2 Years
• Output Power: 101 - 200W
• Input Voltage: 160-290V
• Certification: CE, RoHS, CCC, CB, FCC
• Brand: Goldpower
• Model NO.: GPAD161M28-3A
• Transport Package: Carton
• Trademark: Goldpower
• Origin: China
• HS Code: 8504401400

Product Description

1 INTRODUCTION
GPAD161M28-3A is a multi-outputs power supply with middling power. Due to the newest circuit design, it is compact and of reliable performance. It also has a high regulator precession and output efficiency. It has the wide range of input voltage and has many functions including over-voltage and wanting-voltage protection for input and short-circuit, over-current, over-voltage and over-heating protections for output, alarm function and charging by lithium battery. The cooling way is natural conductive. The power supply is designed strictly in accordance with the safety regulations, which conforms to the safety standards and requirements of information technology.
2  SPECIFICATION REQUIREMENTS
2.1 Environmental Requirements
2.1.1 Operating temperature:-25ºC~+55ºC
2.1.2 Storage temperature:-40ºC~+80ºC
2.1.3 Relative humidity:10%~95%
2.1.4 Absolute altitude:≤3000m
2.1.5 Atmospheric pressure:70~106KPa
2.1.6 Cooling:natural conductive
2.2 Input Requirements

Item	Unit	Min	Typical	Max	Testing Conditions
Input voltage range	Vac	160	220	290
Input voltage frequency range	Hz	47	50	63

2.3 Output Requirements
2.3.1 Basic output requirements

Output voltage	Output voltage range	Output current range	Regulator precession	Load regulation	Voltage regulation	Ripple
+28V	27.85-28.3V	0A~4A	≤±2%	≤±2%	≤±1%	≤200mV
+7V	6.9-7.2V	0A~4A	≤±2%	≤±2%	≤±1%	≤200mV
MODEM(+9V)	8.9-9.2V	0A~1A	≤±2%	≤±2%	≤±1%	≤200mV
Charge 8V	7.9-8.3V	0A~0.1A

Remark: During the ripple testing, it is measured under the rated voltage input and output, with 0.1UF filmy capacitor and 10UF/50V high frequency electrolytic capacitor on output, 20MHz bandwidth of oscillograph.
2.3.2 Other requirements

Item	Unit	Min	Typical	Max	Testing Conditions
Output Power	W	-	160
Output Efficiency	%	75		-	Rated input/output
Temperature coefficient	/ºC			±0.02%
Lasting time @turn-off	mS	10
Output put-off @turn-on	S	1		5
Over-rush @dynamic response				±3%
Recovery time for Over-rush @dynamic response	uS			500	With load 25%-50%-25%, 50%-75%-50%
Over-rush @on-off				±3%

2.3.3,SW signal:28V/7V normal output is regarded as the default state, if there is a level(3.8V-5V) from outside, 28V/7V output will shut off, however MODEM and 8V charging voltage are normal.
2.4 Protection

Item	Unit	Min	Typical	Max	Recovery characteristics
Input over-voltage protection	V	295	305	310	Auto recovery
Recovery point for Input over-voltage protection	V	285	298	305
Input wanting-voltage protection	V	140	148	155
Recovery point for Input wanting-voltage protection	V	150	156	165
Charging @ wanting-voltage	V	5.0	5.2	5.5
+28V output over-voltage protection	V	29	31.1	32	Auto recovery
+7V output over-voltage protection	V	8.5	9.5	10.5
MODEM output over-voltage protection	V	10	11	12
+28V output limited current protection	A	4.5	6.7	8	Auto recovery
+7V output limited current protection	A	4.5	6	7
MODEM output limited current protection	A	1.5	3	4
Over-heating protection	ºC	95	100	105	Auto recovery
Short-circuit protection		Auto recovery
Description for charging		Output will not stable at charging voltage with no load. To begin charging after connect with battery, and shut off the charging voltage after full. Discharge to 5.0-5.5V, battery charge again automatically.

2.5 SAFETY

Item	Level	Standards(or testing conditions)
Insulation voltage (output to ground)	500Vdc	500Vdc/1Min / Leakage Current≤10mA
Insulation voltage ( input to ground)	1500Vac	1500Vac/1Min / Leakage Current≤10mA
Insulation voltage ( input to output)	1500Vac	1500Vac/1Min / Leakage Current≤10mA
Insulation resistance	100MΩ	Under normal atmospheric pressure, and when the relative humidity is 90%, and the testing voltage is DC 500v, for the power supply, the insulation resistance of input to output, input to ground, and output to ground is no less than 100MΩ.

Remark: Remove the discharge tube during testing.
2.6 EMC

Item	Index requirements	Standards
CE	CLASS A	EN55022
RE	CLASS A	EN55022
ESD	LEVEL 3	EN61000-4-2(CLASS B)
ESD	There is no influence on the operation of power supply when charge on the case after power supply is encased Tangent discharge:±6KV Air discharge:±8KV	EN61000-4-2(CLASS B)
EFT/B	LEVEL 3:2KV	IEC61000-4-4
SURGE	LEVEL 3:line-line 2KV          line-GND 4KV	EN61000-4-5
DIP	Drop to 70%,40%,0% Lasting time 10ms 100ms 1000ms	IEC61000-4-11

2.7 Other requirements

Item	Index requirements	Performance
Noise	The noise of power supply should be less than 55dB(A), the condition is in the range of input voltage and output voltage and current, the distance is 1 meter from front , back, right and left, and 1.5 meter from upper and underside.	Pass
MTBF	100,000H
Vibration	>Frequency : 5 to 10 Hz >Amplitude : 3.5mm,9~200Hz >Direction : 3 directions >Sweep time : 50minutes(50minute per one way) > acceleration:10m/s2, > there is no influence on power supply.	Pass
Shock	Half-sine wave,acceleration: 20G,Amplitude 11ms,Direction : 3 directions(X,Y,Z) 3 times per one direction	Pass
Dustproof	Has some function of dustproof	Pass
Odor	No peculiar smell and deleterious gas	Pass