Providing original equipment manufacturers (OEM) with reliable USB chargers for personal electronic equipment, Phihong offers a comprehensive
range of USB chargers. These chargers are smaller in size and lower in cost compared with conventional AC/DC chargers. Below is standard specification. Please contact us for OEM projects.
USB CHARGER SPECIFICATIONS
Input
Input voltage range:
4.75 to 5.25 VDC (5 Volt nominal)
Input current range:
20mA at No load (5.0 Volts nominal)
550mA at 0.3A load (5.0 Volts nominal)
Output
Custom specified.
Overall Performance
Total output power:
1.74W (Max.)
Short circuit protection:
Protection against output short circuit. The output current delivered into a short circuit shall not exceed 0.4A. A continuous short circuit
shall not produce any excessive heat, smoke, fire, or any damage to the unit.
Environmental
Operating temperature:
-10°C to55°C
Storage temperature:
-40°C to 85°C
Thermal shock:
-40°C and +85°C for 30min. each 200 cycle at none operation Test at our QA department standard
Temperature rise:
The temperature of the case, any internal component, and the winding of the coil shall remain less than 50°C.
Electrostatic Discharge (ESD)
The following ESD tests are performed by a probe consisting of 150pF in series with 330 .
Body discharge:
The power supply must not experience any momentary or catastrophic failures. ± 10KV (air discharge)
The power supply may reset but no catastrophic failures are allowed. ± 15KV (air discharge)
One at a time, and discharge each time. With and without DC power applied to supply. No catastrophic failures allowed.
20mA at No load (5.0 Volts nominal)
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