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LD2407250 Folha de dados(PDF) 2 Page - MicroPower Direct, LLC

Nome de Peças LD2407250
Descrição Electrónicos  LD24
Download  4 Pages
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Fabricante Electrônico  MPD [MicroPower Direct, LLC]
Página de início  http://www.micropowerdirect.com
Logo MPD - MicroPower Direct, LLC

LD2407250 Folha de dados(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
(%, Max)
Package
Voltage (VDC)
Voltage (VDC)
Current
Range
Range
Max (mA)
Accuracy (%)
LD24-04-150
7.0 - 30.0
2.0 - 28.0
150
±10
4.2
200
95
14 -Pin DIP
LD24-07-250
7.0 - 30.0
2.0 - 28.0
250
±8
7
200
95
14 -Pin DIP
LD24-08-300
7.0 - 30.0
2.0 - 28.0
300
±6
8
200
95
14 -Pin DIP
LD24-08-350
7.0 - 30.0
2.0 - 28.0
350
±5
8
200
95
14 -Pin DIP
LD24-14-500
7.0 - 30.0
2.0 - 28.0
500
±6
14
250
95
16 -Pin DIP
LD24-17-600
7.0 - 30.0
2.0 - 28.0
600
±7
17
250
95
16 -Pin DIP
LD24-20-700
7.0 - 30.0
2.0 - 28.0
700
±7
20
250
95
16 -Pin DIP
LD24-24-1000
7.0 - 30.0
2.0 - 28.0
1,000
±7
24
300
95
16 -Pin DIP
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 3.0SMCJ24A or SMCJ24A is recommended. The TVS max clamping voltage (@max peak pulse
current VC) must be
40V. 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-30D-15IS, a compact 30W AC/DC power
supply. The MPM-30D-15IS is connected across its ±15 VDC outputs to provide a tightly regulated 30 VDC output at 1A. The 30 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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