LP55281TLX/NOPB National Semiconductor, LP55281TLX/NOPB Datasheet - Page 6

• Manufacturer Part Number: LP55281TLX/NOPB
• Description: IC LED DRIVER RGB 36-USMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: RGB LED Driverr

Specifications of LP55281TLX/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 12
• Internal Driver: Yes
• Type - Primary: Light Management Unit (LMU)
• Type - Secondary: Color, RGB
• Frequency: 1MHz ~ 2MHz
• Voltage - Supply: 3 V ~ 5.5 V
• Voltage - Output: 4 V ~ 5.3 V
• Mounting Type: Surface Mount
• Package / Case: 36-MicroSMD
• Operating Temperature: -30°C ~ 85°C
• Current - Output / Channel: 300mA
• Internal Switch(s): Yes
• Efficiency: 88%
• For Use With: LP55281RLEV - BOARD EVAL FOR LP5528 RGB DRIVER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LP55281TLX

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V
MAGNETIC BOOST DC/DC CONVERTER ELECTRICAL CHARACTERISTICS
Symbol
I
V
RDS
f
t
t
I
RGB DRIVER ELECTRICAL CHARACTERISTICS (R1-4, G1-4, B1-4)
Symbol
I
I
f
AUDIO SYNCHRONIZATION INPUT ELECTRICAL CHARACTERISTICS
Symbol
Z
A
ALED DRIVER ELECTRICAL CHARACTERISTICS
Symbol
I
LOAD
Boost
PULSE
STARTUP
SW_MAX
LEAKAGE
RGB
PWM
leakage
IN
DDA
OUT
IN
ON
Output voltage of
internal LDO for
analog parts
Parameter
Recommended
Load Current
Output Voltage
Accuracy (FB pin)
Output Voltage
(FB pin)
Switch ON
resistance
PWM mode
switching
frequency
Frequency
Accuracy
Switch pulse
minimum width
Startup time
SW pin current
limit
Parameter
R1-4, G1-4, B1-4
pin leakage
current
Maximum
Recommended
Sink Current
Accuracy @ 15
mA
Current mirror
ratio
RGB1-4 current
mismatch
RGB switching
frequency
Parameter
Input Impedance
of ASE1, ASE2
ASE1, ASE2
Audio Input Level
Range (peak-to-
peak)
Parameter
Leakage current
(Note 12)
Condition
3.0V
V
3.0V
V
3.0V
V
1 mA
V
V
RT = 82 kΩ
freq_sel[2:0] = 1XX
2.7V
RT = 82 kΩ ± 1%
no load
Boost startup from STANDBY (Note 13)
Condition
5.5V at measured pin
Limited with external resistor R
R
(Note 13)
I
Accuracy defined by internal oscillator, frequency value
selectable
Condition
(Note 13)
Min input level needs maximum gain; Max input level for
minimum gain
Condition
V
RGB
OUT
OUT
OUT
IN
DD1,2
ALED
RGB
> V
= 15 mA
≤
≤
≤
≤
= 5V
= 4V
= 5V
= 8.2 kΩ ± 1 %
≤
= 5.5V
= 3.0V, I
OUT
V
V
V
V
I
LOAD
IN
IN
IN
DDA
≤
+ V
≤
V
≤
SCHOTTKY
OUT
SW
2.9V
300 mA
= 0.5 A
- 0.5
(Note 14)
6
RGB
Min
-3%
700
550
Min
Min
Min
-10
10
-5
-7
0
0
0
Typ
V
1 : 100
V
f
2.80
schottky
0.03
Typ
Typ
Typ
800
PWM
0.4
± 3
0.1
± 5
± 5
30
10
15
IN
2
-
Max
1600
+3%
Max
Max
Max
300
400
+10
900
950
0.8
+5
+7
40
1
1
Units
Units
Units
Units
MHz
mA
mA
mA
mA
mV
ms
µA
kΩ
µA
ns
%
%
%
%
Ω
V
V