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LD2414500W Scheda tecnica(PDF) 2 Page - MicroPower Direct, LLC

Il numero della parte LD2414500W
Spiegazioni elettronici  LD24-xx-xxW
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Produttore elettronici  MPD [MicroPower Direct, LLC]
Homepage  http://www.micropowerdirect.com
Logo MPD - MicroPower Direct, LLC

LD2414500W Scheda tecnica(HTML) 2 Page - MicroPower Direct, LLC

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Model Selection Guide
292 Page Street Ste D Stoughton, MA 02072 TEL: (781) 344-8226 FAX: (781) 344-8481 E-Mail: sales@micropowerdirect.com
www.micropowerdirect.com
Typical Connection: DC/DC Input
Model
Number
Input
Output
Maximum
Power
(W)
Ripple &
Noise
(mV P-P, Max)
Efficiency
(%, Typ)
Voltage (VDC)
Voltage (VDC)
Current
Range
Range
Max (mA)
Accuracy (%)
LD24-08-350W(A)
7.0 - 30.0
2.0 - 28.0
350
±6
8
200
95
LD24-14-500W(A)
7.0 - 30.0
2.0 - 28.0
500
±8
14
250
95
LD24-20-700W(A)
7.0 - 30.0
2.0 - 28.0
700
±8
20
250
95
LD28-24-1000W(A)
7.0 - 30.0
2.0 - 28.0
1,000
±8
24
300
95
Notes:
1. A reversed power source could damage the unit.
4. The VADJ input should be left open if not used. Grounding VADJ will shut the unit
down. Connecting VADJ to VIN may damage the unit.
2. No connection should be made between input ground and the output.
3. These are step-down devices, the maximum output open voltage is
equal to the input voltage.
5. Exceeding the specified maximum output power could cause damage to the unit.
Typical Connection: AC/DC Input
Connection Notes:
To comply with EN61000-4-5, a TVS should be installed before the input filter components. A 3.0SMCJ48A or SMCJ48A is recommended. The TVS max clamping voltage (@max peak pulse
current VC) must be
60V. This will prevent any surge from exceeding the maximum input of the driver (65 VDC). Exceeding the maximum input rating could damage the driver.
The filter shown (C1, C2 and L1) will help to meet conducted emission requirements. With the addition of the filter, the unit should meet the levels of EN 55015.
Connection Notes:
This is a distributed (or two-stage) AC connection. In this configuration, the AC line in (90 to 264 VAC) is connected to the MPM-04S-12, a miniature 4W AC/DC power
supply. The MPM-04S-12 provides a tightly regulated 12 VDC output at 333 mA. The 12 VDC output powers the LED driver.
The two stage approach can simplify the safety approval process (most AC/DC power supplies on the market are approved to EN 60950) and may increase design flex-
ibility. Besides the output power, other specifications to consider when selecting the input AC/DC supply would include input range, safety approvals, PFC rating (which
may be needed for various system energy ratings) and operating temperature range.
Note: The output current adjustment circuit shown in both connection diagrams is discussed on page 4.


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