Engineering Specification
Table Contents
1.
2.
General
................................................................................................................ 5
1.1.
SCOPE
............................................................................................................. 5
INPUT REQUIREMENTS
.......................................................................................... 5
2.1.
INPUT VOLTAGE
............................................................................................... 5
2.2.
FREQUENCY
.................................................................................................... 5
2.3.
Voltage Section
................................................................................................ 5
2.4.
Efficiency & Energy Star Requirement
................................................................ 5
2.5.
Input Current
................................................................................................... 5
2.6.
Inrush Current
................................................................................................. 5
2.7.
POWER SUPPLY EFFICIENCY
.............................................................................. 5
OUTPUT REQUIREMENTS
....................................................................................... 6
3.1.
STATIC DC LOAD
............................................................................................... 6
3.2.
DYNAMIC LOAD
............................................................................................... 6
3.3.
TURN ON DELAY TIME
...................................................................................... 6
3.4.
RISE TIME
........................................................................................................ 6
3.5.
RIPPLE AND NOISE
........................................................................................... 6
3.6.
LOAD IMPEDANCE
............................................................................................ 6
3.7.
HOLD UP TIME
................................................................................................. 6
NO LOAD OPERATION
............................................................................................ 7
PROTECTION
......................................................................................................... 7
5.1.
OVER VOLTAGE PROTECTION
............................................................................. 7
5.2.
SHORT CIRCUIT PROTECTION
............................................................................ 7
5.3.
OVER CURRENT PROTECTION
............................................................................ 7
SAFETY REQUIREMENTS
........................................................................................ 7
6.1.
DIELECTRIC STRENGTH
..................................................................................... 7
6.2.
INSULATION RESISTANCE
.................................................................................. 7
6.3.
GROUND LEAKAGE CURRENT
............................................................................ 7
ELECTROMAGNETIC COMPATIBILITY
....................................................................... 7
7.1.
FCC REQUIREMENTS
......................................................................................... 7
7.2.
VDE REQUIREMENTS
........................................................................................ 8
7.3.
VCCI REQUIREMENTS
....................................................................................... 8
7.4.
EMC REQUIREMENTS
....................................................................................... 8
7.5.
LIGHTNING SURGE
........................................................................................... 8
7.6.
ESD
................................................................................................................. 8
RELIABILITY
........................................................................................................... 8
8.1.
MTBF
.............................................................................................................. 8
8.2.
OPERATION LIFE
............................................................................................... 8
ENVIROMENT
....................................................................................................... 8
Customer
Rev.
X02
Written By
Leon Chang
Effective Date
2012/11/12
LITE-ON Technology Corp.
SHEET 3 of 10
LTADPDOC-001-0B1
3.
4.
5.
6.
7.
8.
9.
Engineering Specification
9.1.
9.2.
9.3.
9.4.
10.
OPERATING
..................................................................................................... 8
SHIPPING AND STORAGE
.................................................................................. 9
ALTITUDE
........................................................................................................ 9
REGULATED SUBSTANCES REQUIREMENT
........................................................... 9
TEMPERATURE RISE OF CASE SURFACE
.................................................................... 9
11. MACHANICAL
....................................................................................................... 9
11.1.
DIMENSION
................................................................................................. 9
11.2.
WEIGHT.......................................................................................................
9
11.3.
DC CABLE
.................................................................................................. 10
Customer
Rev.
X02
Written By
Leon Chang
Effective Date
2012/11/12
LITE-ON Technology Corp.
SHEET 4 of 10
LTADPDOC-001-0B1
Engineering Specification
1. General
1.1.
SCOPE
This specification defines the performance characteristics of a single phase, 5 watt, 5Vdc
output, ROHS power supply. This specification also defines worldwide safety and
electromagnetic compatibility requirements for the power supply which is intended for
use in USB device charger.
2. INPUT REQUIREMENTS
2.1.
INPUT VOLTAGE
LOW RANGE
HIGH RANGE
MINIMUM
90VAC
180VAC
MAXIMUM
132VAC
264VAC
NOMINAL
100-120VAC
200-240VAC
2.2.
FREQUENCY
SINGLE PHASE
MINIMUM
47Hz
MAXIMUM
63Hz
NOMINAL
50-60Hz
2.3.
Voltage Section
A full range will be provided to select the appropriate range.
2.4.
Efficiency & Energy Star Requirement
The Adaptor shall be designed to meet EPS Requirement as below for both 110VAC and
230VAC:
a. No Load Average Power Loss shall be less than
100mW
at 230Vac/50Hz.
b. Efficiency shall higher than
72%
at the USB connector-end at input voltage
110Vac/60Hz and 230Vac/50Hz with a 1A load condition.
c. Average Efficiency value of 25%, 50%, 75%, 100% load condition shall higher
73.4%
at the USB connector-end at input voltage 110Vac/60Hz and 230Vac/50Hz.
2.5.
Input Current
0.2
Amps maximum at nominal input voltage within the low range as specified in
paragraph 2.1 and at any combination of loading conditions.
2.6.
Inrush Current
Peak inrush current: Inrush current shall not exceed 85% of the max rated value including I
2
t
derating for all input components.
2.7.
POWER SUPPLY EFFICIENCY
The power supply efficiency shall meet requirement as specified in item 2.4 with the AC
input set at the nominal voltage.
Customer
Rev.
X02
Written By
Leon Chang
Effective Date
2012/11/12
LITE-ON Technology Corp.
SHEET 5 of 10
LTADPDOC-001-0B1
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