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LD5805 Datasheet(PDF) 10 Page - Leadtrend Technology

Part # LD5805
Description  Step up, 4 strings, Max. 250mA/string, Multi-dimming mode WLED Backlight Controller
PDF  18 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD5805 Datasheet(HTML) 10 Page - Leadtrend Technology

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LD5805
06/15/2015
10
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD5805-DS-01 June 2015
PARAMETER
CONDITIONS
SYMBOL
MIN
TYP
MAX
UNITS
EN and PWM Dimming
EN Logic
Enable
VEN_H
2.2
V
Disable
VEN_L
0.8
V
PWM Logic
Enable
VPWM_H
2.2
V
Disable
VPWM_L
0.8
V
EN Pull Down Resistance
*
REN
100
300
k
LPF
LPF Output Resistance
*
RLPF
35
65
k
Protection
LED Open String Protection Threshold
OVP1
VOVP1
1.88
2
2.12
V
Shutdown Under Abnormal condition
OVP2
VOVP2
2.36
2.6
2.84
V
LED Short Circuit Protection Threshold LED1~LED4
VLSCP
8.0
8.8
9.5
V
Boost Output Protection - Short circuit
SCP
VSCP
0.1
0.2
V
Boost Output Protection - Short circuit
Hysteresis
VSCPY
50
100
mV
Thermal Shutdown threshold
*
150
C
Thermal Shutdown hysteresis
*
20
C
MOSFET Over-Current Protection
Current Sense Threshold
VOCP
0.45
0.55
0.65
V
Over load protection voltage
VOLP
1
V
*: Guaranteed by Design.



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