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RT4539AWSC датащи(PDF) 10 Page - Richtek Technology Corporation

номер детали RT4539AWSC
подробное описание детали  39V High Efficiency Boost Converter with I2C Controlled 6-CH LED Driver
PDF  39 Pages
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производитель  RICHTEK [Richtek Technology Corporation]
домашняя страница  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT4539AWSC датащи(HTML) 10 Page - Richtek Technology Corporation

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RT4539A
Copyright © 2022 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation
www.richtek.com
DS4539A-01
December 2022
10
Typical Operating Characteristics
Efficiency
40
50
60
70
80
90
100
0
10 20
30
40
50 60
70
80 90 100
PWM Duty (%)
VIN = 3.8V
VIN = 5V
VIN = 12V
ILEDx Current vs. Input Voltage
17.0
17.5
18.0
18.5
19.0
19.5
20.0
20.5
21.0
21.5
22.0
2
4
6
8
10 12 14 16 18 20 22 24
Input Voltage (V)
Set ILEDx Max. current = 20mA,
Loading = 6p9s, SW = 600kHz
Boost OVP Voltage vs. Code
0
5
10
15
20
25
30
35
40
45
0
5
10
15
20
25
30
35
Code (LSB)
SW = 600kHz
VCP Voltage vs. Temperature
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
-40
0
40
80
120
Temperature (°C)
SW Frequency vs. DAC Code
0
200
400
600
800
1000
1200
1400
1600
1800
0
2
4
6
8
10
12
14
16
DAC Code (LSB)
Boost SW Frequency vs. Input Voltage
0
200
400
600
800
1000
1200
1400
1600
1800
2000
2
4
6
8
10
12
14
16
18
20
Input Voltage (V)
SW = 1600kHz
SW = 600kHz
SW = 1000kHz
SW = 300kHz



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