MP1518DG 데이터 시트보기 (PDF) - Monolithic Power Systems
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MP1518DG Datasheet PDF : 10 Pages
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TM
MP1518 – FIXED FREQUENCY WHITE LED DRIVER
ELECTRICAL CHARACTERISTICS
VIN = VEN = 5V, TA = +25°C, unless otherwise noted.
Parameters
Symbol Condition
Operating Input Voltage
Supply Current (Shutdown)
Supply Current (Quiescent)
Switching Frequency
Maximum Duty Cycle
Under Voltage Lockout
VIN
VEN = 0V
VFB = 0.15V
fSW
VFB = 0V
IN Under Voltage Lockout
Under Voltage Lockout
Hysteresis
UVLO VIN Rising
Open Lamp Shutdown
Threshold
VOV
VOV Rising
Enable
EN Threshold
EN Threshold
EN Hysteresis
VEN Rising
VEN Rising, VIN = 2.5V
EN Input Bias Current
Feedback
VEN = 0V, 5V
FB Voltage
FB Input Bias Current
Output Switch
SW On-Resistance (5)
SW Current Limit (5)
Thermal Shutdown (5)
VFB = 0.1V
RON
Duty Cycle = 60%
Notes:
5) Guaranteed by design.
Min Typ Max Units
2.5
6
V
0.1 1 µA
690 750 µA
1.0 1.3 1.5 MHz
85 92
%
2.25 2.45 V
92
mV
28
V
1.0 1.35 1.6 V
0.8
V
90
mV
1 µA
94 104 114 mV
-600 -300
nA
0.5
Ω
350
mA
160
°C
MP1518 Rev. 1.61
www.MonolithicPower.com
3
4/18/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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