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LP5526 数据表(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 LP5526
功能描述  Lighting Management Unit with High Voltage Boost Converter with up to 150mA Serial FLASH LED Driver
PDF  33 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LP5526 数据表(HTML) 3 Page - National Semiconductor (TI)

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Pin Descriptions
Pin #
Name
Type
Description
5E
SW
Output
Boost Converter Power Switch
5D
FB
Input
Boost Converter Feedback
5C
RLED
Output
Red LED Output (Current Sink / Open Drain Switch)
5B
GLED
Output
Green LED Output (Current Sink / Open Drain Switch)
5A
BLED
Output
Blue LED Output (Current Sink / Open Drain Switch)
4E
GND_SW
Ground
Power Switch Ground
4D
NRST
Input
External Reset, Active Low
4C
SCL
Logic Input
Clock Input for I
2C Compatible Interface
4B
IRGB
Input
External RGB LED Maximum Current Set Resistor
4A
GND_RGB
Ground
Ground for RGB LED Currents
3E
VDD2
Power
Supply Voltage 3.0...5.5 V
3D
VDDIO
Power
Supply Voltage for Digital Input/Output Buffers and Drivers
3C
SDA
Logic Input/Output
Data Input/Output for I
2C Compatible Interface
3B
GPIO[2]
Logic Input/Output
General Purpose Logic Input/Output
3A
GPIO[0] / PWM
Logic Input/Output
General Purpose Logic Input/Output / External PWM Input
2E
GND_WLED
Ground
Ground for White LED Currents (MAIN and SUB Outputs)
2D
GNDT
Ground
Ground
2C
VDD1
Power
Supply Voltage 3.0...5.5 V
2B
VREF
Output
Reference Voltage (1.23V)
2A
GPIO[1]
Logic Input/Output
General Purpose Logic Input/Output
1E
MAIN
Output
MAIN Display White LED Current Output (Current Sink)
1D
SUB
Output
SUB Display White LED Current Output (Current Sink)
1C
VDDA
Output
Internal LDO Output (2.80V)
1B
GND
Ground
Ground for Core Circuitry
1A
IRT
Input
Oscillator Frequency Set Resistor
Package Mark
20179796
Ordering Information
Order Number
Package Marking
Supplied As
Spec/Flow
LP5526TL
5526
TNR 250
NoPb
LP5526TLX
5526
TNR 3000
NoPb
www.national.com
3



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