LP5520TL NSC [National Semiconductor], LP5520TL Datasheet - Page 3

• Manufacturer Part Number: LP5520TL
• Description: RGB Backlight LED Driver
• Manufacturer: NSC [National Semiconductor]

Pin Descriptions
Pin
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
Name
SW
FB
VDDD
SI/A0
SO
GND_SW
PWMR
IFSEL
SCK/SCL
SS/SDA
GND_LED
GNDA
PWMG
NRST
VDDIO
ROUT
PWMB
S2_IN
BRC
VLDO
GOUT
BOUT
S1_IN
GNDT
VDDA
Type
Output
Input
Power
Logic Input
Logic Output
Ground
Logic Input
Logic Input
Logic Input
Logic Input/Output
Ground
Ground
Logic Input
Logic Input
Power
Output
Logic Input
Input
Logic Input
Power
Output
Output
Input
Ground
Power
Description
Boost Converter Power Switch
Boost Converter Feedback
Supply Voltage for Digital Circuitry
Serial Input (SPI), Address Select (I
Serial Data Out (SPI)
Power Switch Ground
PWM control for Output R
Interface Selection (SPI or I
Clock (SPI/I
Slave Select (SPI), Serial Data In/Out (I
Ground for LED Currents
Ground for Analog Circuitry
PWM control for Output G
Master Reset, Active Low
Supply Voltage for Input/output Buffers and Drivers
Red LED Output
PWM control for Output B
ADC input 2, input for optional second sensor
Brightness Control for All LED Outputs, Pseudo-PWM
Internal LDO Output
Green LED Output
Blue LED Output
ADC input 1, input for temperature sensor
Ground/Test
Supply Voltage for Analog Circuitry
3
2
C)
2
C compatible, IF_SEL = 1 for SPI)
2
C)
2
C)
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