LD48 MPD [MicroPower Direct, LLC], LD48 Datasheet - Page 2

• Manufacturer Part Number: LD48
• Description: Compact, Wired Constant Current DC/DC LED Drivers
• Manufacturer: MPD [MicroPower Direct, LLC]

Model Selection Guide
Typical Connection:
Connection Notes:
To comply with EN61000-4-5, a TVS should be installed before the input fi lter components. A 3.0SMCJ48A or SMCJ48A is recommended. The TVS max clamping voltage (@max peak pulse
current V
The fi lter shown (C
Typical Connection:
LD48-09-150W(A)
LD48-14-250W(A)
LD48-17-300W(A)
LD48-20-350W(A)
LD48-29-500W(A)
LD48-34-600W(A)
LD48-40-700W(A)
LD48-48-1000W(A)
Notes:
1. A reversed power source could 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.
C
Number
) must be
Model
1
, C
2
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.
and L
1
Voltage
) will help to meet conducted emission requirements. With the addition of the fi lter, the unit should meet the levels of EN 55015.
7.0 - 60.0
7.0 - 60.0
7.0 - 60.0
7.0 - 60.0
7.0 - 60.0
7.0 - 60.0
7.0 - 60.0
7.0 - 60.0
Connection Notes:
This is a distributed (or two-stage) AC connection. In this confi guration, 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 fl ex-
ibility. Besides the output power, other specifi cations 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.
Range
292 Page Street Ste D Stoughton, MA 02072
Input
(VDC)
DC/DC Input
AC/DC Input
Note: The output current adjustment circuit shown in both connection diagrams is discussed on page 4.
Voltage
2.0 - 57.0
2.0 - 57.0
2.0 - 57.0
2.0 - 57.0
2.0 - 57.0
2.0 - 57.0
2.0 - 57.0
2.0 - 57.0
Range
(VDC)
Max
Output
4. The V
5. Exceeding the specifi ed maximum output power could cause damage to the unit.
1000
150
250
300
350
500
600
700
down. Connecting V
(mA)
ADJ
Current
input should be left open if not used. Grounding V
•
Accuracy
TEL: [phone]
ADJ
±8
±7
±6
±5
±5
±5
±5
±5
to V
IN
may damage the unit.
(%)
www.micropowerdirect.com
Maximum
Power
(W)
•
14
17
20
29
34
40
48
9
FAX: [phone]
(mV P-P, Max)
ADJ
Ripple &
will shut the unit
Noise
150
200
250
300
400
450
500
800
•
Effi ciency
E-Mail: [e-mail]
(%, Typ)
97
97
97
97
97
97
97
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