11SP 4247” LCD TV Power specification |
Rev 1.3 |
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Specification
6 |
Date: 2012. 08. 15 |
11SP 4247” LCD TV Power specification |
Rev 1.3 |
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1.INTRODUCTION
1.1Scope
This approval is the description related to every electrical and structural specifications and reliability For Power Supply Unit used on 4247 inch LGE LED TV.
1.2Customers product related items
Product : Power Supply Unit Part code : EAY62171601
1.3Product name
Product name : LGP4247-11SPL
Revision code : 1.3
2.SPECIFICATION
2.1Input Requirements
Nominal Input Voltage |
AC 100V to AC 240V |
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Input Voltage Variation |
AC 90V to AC 264V |
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Input Current |
Under 3.5Arms . (at 100Vac & Nominal Load) |
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Under 1.5Arms . (at 240Vac & Nominal Load) |
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Nominal Frequency |
50 / 60 Hz |
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Frequency Variation Range |
47 Hz to 63 Hz |
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Phase |
Single |
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Leakage Current |
0.7mA_peak. (100Vac ~ 240Vac) |
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Surge Immunity |
± 4kV / 1000ns / 0˚ to 360˚ |
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Hold-up Time |
More than 20ms at 100Vac and maximum output load |
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Lightning Surge |
2kA Normal, Common Mode |
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Inrush Current |
80A zero-peak max |
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at cold start and any specified line, load, temperature conditions. |
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2.1.1 Power Factor
over than 0.9 at 90 – 264Vac & max load condition
7 |
Date: 2012. 08. 15 |
11SP 4247” LCD TV Power specification |
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Rev 1.3 |
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2.2 Power Output Characteristics |
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Voltage |
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Rated Current |
Voltage |
Ripple |
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Output |
Variable range |
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(Min, Max) |
Regulation |
Voltage |
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[V] |
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[Amean] |
[V] |
[mVp_p] |
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3.5V |
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0.09W Under(6mA) |
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3.325V |
~ 3.675V |
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(STBY) |
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2 (0.001~2) (ON condition) |
± 5% |
250 mVp_p |
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12V |
11.4V |
~ 12.6V |
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3 (0.3~3 |
± 5% |
350 mVp_p |
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24V |
22.8V |
~ 25.2V |
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4.1 (0.1~4.1) |
± 5% |
500 mVp_p |
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* On Condition : In a moment of Power_ON Signal activated, the current of 3.5V output should be limited within 40mA(Max) at LCD TV condition for stability.
Do not turn “Power_ON” Signal on at the load condition of 3.5V output, more than 40mA.
*Total regulation for each output circuit includes the results of input voltage variation, load variation, warm-up drift and temperature change.
*The following instruments shall be used for measuring ripple noise.
1.Probe having impedance ratio of 1:1.
2.Oscilloscope having frequency characteristic of 100MHz or more.
- Test Point : power output each pin
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Add Electrolytic Capacitor 47 + 0.1 |
Power Supply Unit |
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Load |
Output Voltage |
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700mm |
Oscilloscope |
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Measurement point |
Ripple and noise are measured at the end of output cable which are added a 0.1uF ceramic capacitor and 47uF electrolytic capacitor. ( connected parallel )
* Power turn on system (Only E/Load condition)
If Main Board is opened, that is electrical load condition,
drive on signal must be turn on after about 1.5s behind power on signal
8 |
Date: 2012. 08. 15 |
11SP 4247” LCD TV Power specification Rev 1.3
2.2.1 Stand By Power Consumption
Output Voltage |
3.5V (STBY) |
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12V |
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24V |
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Load [A] |
0.006 |
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Don’t Care (Power-Off) |
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Wattage [W] |
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Less than 0.09Under (230Vac / 50Hz) |
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2.3 Environment Requirement
Operating Temperature Range |
-10 to 40 |
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(60 :No Hardware Failure, TV SET Condition) |
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Operating Humidity Range |
30 to 85 % |
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Storage Temperature Range |
-25 to 85 deg. |
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Storage humidity Range |
5 to 90 % |
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MTBF |
50,000 hour |
(Mean Time Between Failure) |
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Cooling Condition |
Natural Air |
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Shock |
98 |
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Shock test consists of pivoting the power supply, from |
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one edge of it’s bottom side, on a flat surface |
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(such as wood having thickness of 10mm or more) and |
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allowing the opposite edge to fall from a height of 50mm |
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to this surface. |
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The test is performed three times on each edge of the |
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bottom side of the power supply |
2.4 Dielectric Strength Voltage and Insulation Resistance Safety
Dielectric |
AC-DC 1.5K VAC |
3 SEC 10 mA. |
Strength Voltage |
Between Primary and |
All Secondary Circuits. |
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Insulation |
Insulation resistance shall be more than 8M ohm (at DC 500V) |
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Resistance |
Between Primary Live, Neutral line and Secondary. |
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*Above tests are performed at room temperature in non-condensing atmospheric conditions
*Frame grounds are connected to secondary circuits.
2.5Burn-in
More than 0.5 hours at 45 (±5 ), Normal input voltage. AC on/off must be test 1 time after burn-in.
80% Load of specification.
9 |
Date: 2012. 08. 15 |
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