P-0004: Difference between revisions

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==5V-4A UK-Standard==
==Description==
The document details the electrical, mechanical and environmental specifications of a SMPS, the power supply
provides 15W continuous output power. The power supply shall meet the RoHS requirements.
==Specifications==
===Input Characteristics===
* Input Voltage & Frequency
{| class=wikitable
|-
! Parameters !!Minimum !!Rating !! Maximum
|-
|Input Voltage|| 90Vac || 100Vac~240Vac|| 264Vac
|-
|Input Frequency|| 47Hz|| 60Hz/50Hz|| 63Hz
|}
* Inrush Current (cold start @ 230V AC) No damage for 220V/50Hz at cold start (25℃).
* Average Efficiency: Standby power <0.1W @ 230VAC/50Hz.
* Cooling: Natural convection.
* Mean Time Between Failure（MTBF）:The MTBF for the power adapter shall equal or exceed 10,000 hours when operated at full rated load in an
ambient temperature of 25 degree C.
* Output Characteristics:
{| class=wikitable
|-
! RATED OUTPUT !!colspan="2" |Rated Load !!Remark
|-
|                      || Min. || Max.||
|-
|Output Voltage(unload)||<font color=red> 4.9V</font> ||<font color=red>  5.3V</font> ||
|-
|Output Voltage(Full load) || <font color=red>4.9V</font>|| <font color=red> 5.3V</font>|| with wire testing
|-
|Output Current|| 0A || 3A ||
|-
|Turn - on Delay Time|| / ||  3S ||
|-
|Hold-up Time || 5mS || / ||
|-
|Ripple & Nosic ||/  ||150mVp-p||
|-
|OCP ||  || ||
|}
<pre>Ripple & Noise: Tested by a oscilloscope using 20MHz bandwidth and the output is paralleled a 0.1uF ceramic
capacitor and a 47uF electrolysis capacitor. </pre>
===Protection Requirements===
* Over Current Protection：OCP Point Limited: 110%-200% auto restart
<pre>
The output shall hiccup when the over current applied to the output , and shall be self-recovery when the fault
condition is removed
</pre>
*  Short Circuit Protection:
<pre>
The input power shall decrease when the output is short to GND, the power supply shall not damage, and shall be
self-recovery when the fault condition is removed
</pre>
==Environment Requirements==
* Operating Temperature and Relative Humidity
0℃ to +40℃ 20%RH to 80%RH @ Sea level shall below or no more than2000M
* Storage Temperature and Relative Humidity
-30℃ to +70℃ 10%RH to 90%RH（non-condensing）@ Sea level shall below 10000M
* Vibration
10 to 300Hz sweep at a constant acceleration of 1.0G(Breadth: 3.5mm) for 1Hour for each of the perpendicular
axes X, Y, Z
* EMC Standards & Safety Standards
<strong>EN55032</strong>
* Safety Standards
{| class=wikitable
|-
!Type !!Country !!Standard
|-
| Europe || CE|| EN62368
|}
* Ielectric Strength(Hi-pot)
Primary to Secondary: 3000Vac / 10mA / 60 seconds (3 seconds for production)
* Leakage Current
0.25mA max. at 240Vac / 50Hz input
* Insulation Resistance
100MΩ min. @ primary to secondary add a 500Vdc test voltage
* Reliability Requirements
**Burn-in: The power supply shall be burn-in for 2 Hours under normal input and 80% rated load.
* Testing Equipment
{| class=wikitable
|-
!NO.!! Testing Equipment !! Model!! Remark
|-
|1 ||AC Source ||TDGC-2 ||
|-
|2 ||Power Meter || PF9810 ||
|-
|3 Electronic Load || M9715||
|-
|4 Oscilloscopes || MDO3014||
|-
|5 Digital Multimeter || VC890||
|-
|6 DC Power || IT6721||
|-
|7 HI-POT Tester || LK2627X||
|-
|8 Cons. T/H Simulator || XINBAO ||
|}


==Features==
==Gallery==
==Package Includes==
==Keywords==
* Power supply, raspberry pi 4B,5v/4A, UK-standard

Latest revision as of 12:22, 4 August 2026

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