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

Model NO.
GPAD161M28-3A
Transport Package
Carton
Trademark
Goldpower
Origin
China
HS Code
8504401400
Reference Price
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Product Description

1 INTRODUCTION
GP AD161M28-3A 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 precessi o n an d 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 pow er supply is designed stri ctly 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 : - 25 ºC~ + 55 ºC
2.1.2 Storage temperature : -4 0 ºC~ +8 0 ºC
2.1.3 Relative humidity : 10% ~ 95%
2.1.4 Absolute altitude :≤ 3 000m
2.1.5 Atmospheric pressure : 70 ~ 106KP a
2.1.6 Cooling : natural conductive
2.2 Input Requirements
Item Unit Min Typical Max Testing Conditions
Input voltage ran ge 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 precessi o n Load regulation Voltage regulation Ripple
+28 V 27.85 - 28.3V 0A ~ 4A ≤± 2 % ≤± 2 % ≤± 1 % ≤ 200 m V
+ 7 V 6 .9 - 7 .2V 0 A ~ 4A ≤± 2 % ≤± 2 % ≤± 1 % ≤ 200 m V
MODEM(+9 V ) 8.9 - 9.2V 0A ~ 1A ≤± 2 % ≤± 2 % ≤± 1 % ≤ 20 0 m V
C harge 8V 7.9 - 8.3V 0 A ~ 0. 1 A        
Remark: During the ripple testing, it is m easured under the rated voltage input and output , with 0.1UF f ilmy 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
Temp erature 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 W ith load 25%-50%-25% ,
50%-75%-50%
Over-rush @on-off       ± 3%  
2.3. 3 , SW signal : 28V/ 7 V 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 characterist ics
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 out put over-voltage protection V 29 31.1 32 Auto recovery
+7V out put over-voltage protection V 8.5 9.5 10.5
MODEM out put over-voltage protection V 10 11 12
+28V output limited current protection A 4.5 6.7 8 Auto r ecovery
+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 volta ge
(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) 		15 00Vac 15 00Vac /1Min / Leakage Current ≤ 10mA
Insulation resistance 10 0 M Ω 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 100 M Ω .
Remark: Remov e 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 :± 6 KV
Air discharge :± 8 KV 		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 %
L asting time 10 ms 1 00 m s 100 0 ms 		IEC61000-4-11
2.7 Other requirements
Item Index requiremen ts 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 : 5 0minutes ( 50 minute per one way )
> acceleration :10m/s2,
> there is no influence on power supply. 		Pass
Shock Half- sine wave , acceleration : 20G , Amplitude 11 ms , Direction : 3 direc tions (X , Y , Z)
3 times per one direction 		Pass
Dustproof Has some function of dustproof Pass
O dor No peculiar smell and deleterious gas Pass


 

 

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