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LD7890GS Datasheet(PDF) 8 Page - Leadtrend Technology

Part # LD7890GS
Description  High Voltage 4-Channel LED Controller Driver
PDF  16 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7890GS Datasheet(HTML) 8 Page - Leadtrend Technology

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LD7890
8
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7890-DS-01 November, 2013
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNITS
PWM Dimming and EN
EN Logic
Enable
1.5
V
Disable
0.7
V
PWM Pull Down Resistance
950
K
EN Pull Down Resistance
950
K
PWM dimming frequency
100
1k
Hz
LOSC Frequency
CLOSC=2.2nF
0.9
KHz
LOSC Ramp Amplitude
*
Peak
1.2
V
Valley
200
mV
Protection
LED Over Voltage Threshold
OVP
2.4
2.5
2.6
V
LED Over Voltage Hysteresis
OVP Hysteresis
50
80
mV
Short Protection Current
ISP
7.5
10
12.5
A
Short Protection Threshold Voltage
VLEDSP
2.8
3
3.2
V
SENSEN Under Voltage Protection
Threshold
LED Open Protection
0.15
0.2
0.25
V
Boost- Short circuit Protection
OVP pin voltage
0.15
0.2
0.25
V
Thermal Shutdown threshold
150
C
Thermal Shutdown hysteresis
30
C
STATUS Output
Sink Resistance
100
* Guaranteed by design



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