LP55281TLX/NOPB National Semiconductor, LP55281TLX/NOPB Datasheet - Page 3

• 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

Pin Descriptions
Pin
6E
6D
6C
6B
6A
5E
5D
5C
5B
5A
4E
4D
4C
4B
4A
3E
3D
3C
3B
3A
2E
2D
2C
2B
2A
1E
1D
1C
1B
1A
6F
5F
4F
3F
2F
1F
GND_RGB1
GND_RGB2
GND_SW
SCK/SCL
SS/SDA
IF_SEL
VDDIO
GNDA
Name
NRST
VDDA
ASE2
VDD1
ALED
ASE1
VREF
VDD2
IRGB
SI/A0
GND
GND
SW
IRT
SO
G1
G3
G2
G4
FB
B3
R1
B1
R3
R2
R4
B2
B4
Logic Input/Output
Logic Output
Logic Input
Logic Input
Logic Input
Ground
Ground
Ground
Ground
Ground
Ground
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Interface (SPI or I
3
Supply Voltage for Input/Output Buffers and Drivers
Slave Select (SPI), Serial Data In/Out (I
Bias Current Set Resistor for RGB Drivers
Serial Input (SPI), Address Select (I
Asynchronous Reset, Active Low
Audio Synchronized LED Output
Boost Converter Power Switch
Audio Synchronization Input 2
Audio Synchronization Input 1
Oscillator Frequency Resistor
Ground for RGB1-2 Currents
Ground for RGB3-4 Currents
2
Ground for Analog Circuitry
Boost Converter Feedback
C compatible) Selection (IF_SEL = 1 for SPI)
Power Switch Ground
Serial Data Out (SPI)
Green LED 1 Output
Green LED 3 Output
Green LED 2 Output
Green LED 4 Output
Internal LDO Output
Blue LED 3 Output
Blue LED 1 Output
Blue LED 2 Output
Blue LED 4 Output
Reference Voltage
Red LED 1 Output
Red LED 3 Output
Red LED 2 Output
Red LED 4 Output
Supply Voltage
Clock (SPI/I
Supply Voltage
Description
Ground
Ground
2
C)
2
C)
2
C)
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