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LD7890GS Scheda tecnica(PDF) 9 Page - Leadtrend Technology

Il numero della parte LD7890GS
Spiegazioni elettronici  High Voltage 4-Channel LED Controller Driver
PDF  16 Pages
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Produttore elettronici  LEADTREND [Leadtrend Technology]
Homepage  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7890GS Scheda tecnica(HTML) 9 Page - Leadtrend Technology

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LD7890
9
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7890-DS-01 November, 2013
Typical Performance Characteristics
VIN=24V, VOUT ~ 45V (13 LEDs), 4 channels, 250mA/sting, Freq ~ 150KHz,Cout=100uF, unless otherwise noted.
Fig. 1
VIN=24V, “FDIM=200Hz, Duty=5%”
DIM
ILED
DRV
VOUT
Fig. 2
VIN=24V, “FDIM=200Hz, Duty=50%”
DIM
ILED
DRV
VOUT
Fig. 3
VIN=24V, “FDIM=200Hz ,Dim Duty=80%”
VOUT
ILED
DRV
DIM
Fig. 4 VIN=24V, “FDIM=200Hz, Duty=95%
VOUT
ILED
DRV
DIM
Fig. 5 VIN= 24V, “Power ON ,Dim Duty=100%”
VOUT
ILED
DRV
COMP
Fig. 6 VIN=24V, “VDIM=0.7V, CLOSC=10nF”
LOSC
ILED
VGATE
VDIM



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