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MP3313 数据表(PDF) 8 Page - Monolithic Power Systems

部件名 MP3313
功能描述  3-Channel, Max 38V Output, Linear/Exponential, Analog Dimming, Step-Up WLED Driver with I2C
PDF  26 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP3313 数据表(HTML) 8 Page - Monolithic Power Systems

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MP3313 – 3-CHANNEL, LINEAR/EXPONENTIAL DIMMING, WLED DRIVER W/ I2C
MP3313 Rev1.0
www.MonolithicPower.com
8
8/2/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6V, 8*LEDs/string, ILED/Ch = 20mA, L = 10µH, TA = 25°C, unless otherwise noted.
LED Current for Each Channel with
Register Code
Current Curve (Dimming by Code only)
LED Current for Each Channel with
PWM Input Duty
Current Curve (Dimming by PWM only)
0
5
10
15
20
25
30
0
500
1000
1500
2000
BRIGHTNESS CODE
Linear Mode
Expo Mode
0
5
10
15
20
25
30
0
0.2
0.4
0.6
0.8
1
Dpwm
Linear Mode
Expo Mode
Efficiency Curve E-IOUT
1MHz, 10
μH, DCR = 49mΩ
Efficiency Curve E-IOUT
500kHz, 10
μH, DCR = 49mΩ
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
90.00%
100.00%
0
10
20
30
40
50
60
70
80
IOUT (mA)
fsw=1MHz
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
90.00%
100.00%
0
10
20
30
40
50
60
70
80
IOUT (mA)
fsw=500kHz
Efficiency Curve E-VIN
10
μH, DCR = 49mΩ
LEDx Voltage vs. LED Current
64.00%
69.00%
74.00%
79.00%
84.00%
89.00%
94.00%
2.5
3
3.5
4
4.5
5
VIN (V)
fsw=1MHz
fsw=500kHz
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0
5
10
15
20
25
ILED/string (mA)
VLED1
VLED2
VLED3



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