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LP6286 Datasheet(PDF) 6 Page - Lowpower Semiconductor inc

Part # LP6286
Description  Multi-Channel DC-DC Converter for LCD Panel
PDF  8 Pages
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Manufacturer  POWER [Lowpower Semiconductor inc]
Direct Link  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP6286 Datasheet(HTML) 6 Page - Lowpower Semiconductor inc

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Preliminary Datasheet
LP6286
Email: marketing@lowpowersemi.com www.lowpowersemi.com
Page 6 of 8
LP6286–00 Version 0.0 NOV.-2016
Electrical Characteristics
(VIN =5V, VAVDD =13V, TA=25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
General
VIN Input Supply Voltage
VIN
2.5
5.5
V
AVDD
AVDD
6
18
V
AVDD Over Voltage Protect
VOVP
18
20
V
Boost Switching Frequency
FLX
1
1.2
1.4
MHz
Charge Pump Frequency
FCP
500
600
700
kHz
VIN Supply Current
IQ
VFB=1.5V, LX no Switching
0.4
0.8
mA
VFB=1.2V, LX Switching
2.3
5
mA
AVDD Operation Current
IAVDD
VOPP=5V
1.2
3
mA
Input UVLO Threshold
VUVLO(VTH)
VIN Rising
2.15
2.25
2.35
V
UVLO Threshold Hysteresis
VUVLO(HYS)
Falling Hysteresis
100
mV
Reference Voltage
VREF
1.238
1.25
1.262
V
Thermal Shutdown Threshold
TSD
160
°C
Thermal Shutdown Hysteresis
30
°C
Boost Regulator
Maximum Duty-Cycle
DMAX
86
90
94
%
Feedback Voltage
VFB
1.238
1.25
1.262
V
Transconductance of Error Amplifier
Gm
ΔICOMP=5uA
85
µA/V
Voltage Gain
AV
1500
V/V
Switch-ON Resistance
RDS(ON)
200
m
Ω
Current Limit
ILimit
2.5
3
A
LX Leak Current
ILeak
LX Off.
0.01
20
µA
Internal Soft Start Time
TSS
10
ms
UVP Fault Protection Voltage
VUVP
VFB Falling
0.95
1
1.05
V
UVP Fault Delay
TUVP
55
ms
Short Circuit Protection Voltage
VSCP
100
mV
Voltage Detector
Detecting Voltage Adjustment
VDET
HYS=50mV
1.25
V
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VRST������ IRST=5mA
0.2
V
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T������������������������������
140
160
180
ms



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