參數(shù)資料
型號(hào)： LP5520TLX
廠(chǎng)商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 顯示驅(qū)動(dòng)器
英文描述： RGB Backlight LED Driver
中文描述： LED DISPLAY DRIVER, PBGA25
封裝： 2.77 X 2.59 MM, 0.60 MM HEIGHT, SMD-25
文件頁(yè)數(shù)： 18/34頁(yè)
文件大?。?/td> 790K
代理商： LP5520TLX
Temperature and Light Measurement
LP5520 has a 12-bit Analog-to-Digital Converter for the mea-
surements. The ADC has two inputs. S1_IN input is intended
for the LM20 temperature sensor and S2_IN input for light
measurement or any DC voltage measurement. The conver-
sion results are filtered with average filter for 134 ms. The
<adc_ch>
bit in the
Control
register selects, which conver-
sion result can be read out from the registers
ADC_hi_byte
and
ADC_low_byte
. The
ADC_hi_byte
has to be read first.
The
<comp_ch>
bit selects, which input is used for compen-
sation. The ADC uses the LDO voltage 2.8V as the reference
voltage. The input signal range is 0 – 2.8V and the inputs are
buffered on the chip.
If S2_IN is used for light measurement using TDK optical
sensor BCS2015G1 as shown in the Block Diagram on page
5, the measurement range is from 10 to 20.000 lux when using
100k resistor.
adc_ch(bit5)
0
1
0
1
S1 input can be read
S2 input can be read
S1 input is used for compensation
S2 input is used for compensation
comp_sel(bit4)
20186119
www.national.com
18
L
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LP5521 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Programmable Three Channel LED Driver
LP5521TM 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Programmable Three Channel LED Driver
LP5521TM/NOPB 功能描述:LED照明驅(qū)動(dòng)器 3 Ch Prog Led Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
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