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MP3326 Scheda tecnica(PDF) 32 Page - Monolithic Power Systems

Il numero della parte MP3326
Spiegazioni elettronici  16 Channels, 50mA/Ch, LED Driver with Separated PWM Analog Dimming and I2C Interface
PDF  36 Pages
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Produttore elettronici  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3326 Scheda tecnica(HTML) 32 Page - Monolithic Power Systems

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MP3326
– 16-CHANNEL LED DRIVER WITH I2C AND SEPARATED PDIM/ADIM
MP3326 Rev. 1.0
www.MonolithicPower.com
32
1/4/2021
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2021 MPS. All Rights Reserved.
APPLICATION INFORMATION
LED Current Setting
Connect a resistor from the ISET pin to GND to
set the LED current for all 16 channels. The LED
current (ILED) can be calculated with Equation (5):
LED
ISET
500
I
(mA) =
R
(k
Ω)
(5)
For a maximum 50mA ILED, ensure that VIN ≥
4.5V to power the IC.
PCB Layout Guidelines
The traces from the LED anode to the LEDx pins
must be wide enough to support the set current
(up to 50mA) (see Figure 6).
LED7
SCL
SDA
ADDR
RFSH /FLT
ISET
EN
LED11
LED10
LED9
LED8
GND
1
2
3
4
5
6
19
18
17
16
15
14
LED1
7
13
LED12
Bottom GND
Top
Bottom
Vias
VLED+
Figure 6: Recommended PCB Layout



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