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System Power

Digital dimming power supply case

This scheme adopts pl51wt003 chip, which integrates 16kb flash, 256byte true EEPROM, 8 + 8-way 11bit ADC, 6-way PWM and other rich resources. At the same time, pl1166a RF chip is integrated on the chip to realize wireless remote control and other functions; The scheme collects the current of each lamp bead in real time to achieve the accurate closed-loop control of lamp bead current, which can effectively avoid the problem of brightness reduction caused by long-term use of lamp beads;

1、 Scheme performance characteristics

1. The main control chip pl51wt003 has rich resources and high integration;

2. 11bit ADC module to collect the current of each lamp bead in real time;

3. 6-channel PWM output, configured with AD value to accurately control current output;

4. 16kb flash program space, which can optimize a variety of compensation algorithms;

5. Integrate RF chip to optimize design cost.

2、 Application block diagram

 

3、 Selection table

Series

Part No.

Flash

SRAM

EEPROM

I/O

Timer

Connectivity

ACMP.

PWM

OPA.

ADC

Touch Key

DAC

T.S.

RF OSC.

PLL

Voltage

Temp. Range

2.4G T/RX

ICP/ICD

Package

MoQ

UART

SPI

I2C

2.4G RF SoC

PL51WT003B24

16K

256+1K

256

16

3*16b

1

1

1

1

6*12b

1

10*11b

~14

1*5b

Y

12M

/

2.4-3.6

-40-105°

Y

ICP/ICD

SSOP24

2K Tube

PL51WT003S16

16K

256+1K

256

9

3*16b

1

1

1

1

4*12b

0

4*11b

~8

1*5b

Y

12M

/

2.4-3.6

-40-105°

Y

ICP/ICD

SOP16

2K Tube

PL51WT020B24

4K

256

128

15

3*16b

1

1

1

1

4*12b

/

8*11b

~13

/

Y

12M

/

2.0-3.6

-40-105°

Y

ICP

SSOP24

2K Tube

PL51WT020T20

4K

256

128

13

3*16b

1

1

1

1

4*12b

/

8*11b

~11

/

Y

12M

/

2.0-3.6

-40-105°

Y

ICP

TSSOP20

2K Tube

PL51WT020S16

4K

256

128

8

3*16b

1

1

1

0

4*12b

/

2*11b

~6

/

Y

12M

/

2.0-3.6

-40-105°

Y

ICP

SOP16

2K Tube