1. General description
Scope:
This LDA02-42V120A sepic LED driver for 18.5” of LCD backlight system.
2. Applications
18.5” LED Backlight LCD panels For M185XW01.
3. Absolute maximum rating
l Input supply voltage .: 11~13V
l Input current . : 0.7A(MAX)
l Input power : 7.13W
l Output current : 22mA X 6CH
l Output power : 6.28W
l Brightness adjusted voltage : 0V(MAX)~5.0V(MIN)
l Input signal voltage :0V/OFF 5.0V/ON (ON/OFF/control)
l Ambient operating temperature :0℃~40℃
l Storage temperature :-20℃~80℃
l Operating & storage humidify: 10%~85%
l Over voltage protect(OVP)
l High efficency (TYP:88%)
4.Electrical Requirements
This section defines the electrical requirements for the LED driver
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PARAMETER
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SYMBOL
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MIN
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TYP
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MAX
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UNIT
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REMARK
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Input voltage
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VIN
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11.0
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12.0
|
13.0
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V
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|
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Input current
|
Iin
|
-
|
0.51
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0.7
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A
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Vadj=0V RL= M185XW01 Panel
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Input power
|
Pin
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-
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6.11
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7.13
|
W
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Vadj=0V RL= M185XW01 Panel
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|
Input voltage
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Von/off
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-
|
0
|
1.0
|
V
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Off State
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|
2.5
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5.0
|
5.5
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On State
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|||
|
Bright adjust
|
Vadj
|
5
|
-
|
0
|
V
|
0V MAX
|
|
Efficiency
|
η
|
-
|
88
|
-
|
%
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Vadj=0V RL= M185XW01 Panel
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4.2 Output Characteristics:
<, SPAN lang=EN-US style="COLOR: teal">4.2.1 DC output CN4:
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PARAMETER
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SYMBOL
|
MIN
|
TYP
|
MAX
|
UNIT
|
REMARK
|
|
Output current
(6CH)
|
IRLED
|
18
|
20
|
22
|
mA
|
Vadj=0V RL= M185XW01 Panel
|
|
0
|
-
|
3
|
Vadj=5V RL= M185XW01 Panel
|
|||
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Output voltage
|
VLB
|
19.0
|
44.8
|
47.6
|
V
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Vadj=0V RL= M185XW01 Panel
|
|
Output power
|
PO
|
-
|
5.38
|
6.28
|
W
|
Vadj=0V RL= M185XW01 Panel
|
|
Over voltage
|
OVP
|
49
|
50
|
51
|
V
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LATCH
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5.0 Connector:
5.1 DC input connector
5.1.1Connector type (CN1): S6BPHA (6P 2.0mm)
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Pin number
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Output Name
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|
1,2
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Input voltage
|
|
3
|
On/off
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|
4
|
Vadj
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|
5,6
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GND
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5.2 Output connector
5.2.1、Connector type（CN4）: 6712K-F10N-02R (ENTERY CO.,LTD)
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Pin number
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Output Name
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1
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NC
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2
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IRLED(Current Out)
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|
3
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IRLED(Current Out)
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4
|
IRLED(Current Out)
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5
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VLED(Voltage in)
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|
6
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VLED(Voltage in)
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|
7
|
IRLED(Current Out)
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|
8
|
IRLED(Current Out)
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|
9
|
IRLED(Current Out)
|
|
10
|
NC
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