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MP3310 数据表(PDF) 3 Page - Monolithic Power Systems

部件名 MP3310
功能描述  50V, 1.3A, Step-up White LED Driver with True PWM Dimming
PDF  10 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP3310 数据表(HTML) 3 Page - Monolithic Power Systems

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MP3310—50V, 1.3A, STEP-UP WHITE LED DRIVER WITH TRUE PWM DIMMING
MP3310 Rev.1.0
www.MonolithicPower.com
3
7/5/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, VEN = 5V, TA = +25°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Operating Input Voltage
VIN
4.5
25
V
Supply Current (Shutdown)
IIN_SD
VEN = 0V
1
µA
Supply Current (Quiescent)
IIN_QS
VEN = 5V, VLED = 1V
1
2
mA
LDO Output Voltage
VCC
VEN = 5V, 6V < VIN < 25V,
0 < IVCC < 10mA
4.3
5.0
5.5
V
RFSET = 50kΩ
470
560
650
kHz
Switching Frequency
fSW
RFSET Open
0.8
1
1.2
MHz
Maximum Duty Cycle
DMAX
90
%
Under Voltage Lockout
IN Under Voltage Lockout
VCC_UVLO
VIN Rising
3.6
3.9
4.2
V
Under Voltage Lockout
Hysteresis
450
mV
Open Load Shutdown
Threshold
VOVP
VOV Rising
1.18
1.24
1.30
V
Enable & Dimming
EN Low Threshold
VEN_LOW
VEN Falling
0.6
V
EN High Threshold
VEN_HIGH
VEN Rising
1.6
V
EN Disable Timer
10
ms
Current Regulation Delay
From VEN Rising Edge
2
µs
LED Current Regulation
LED Current
ILED
RISET = 60kΩ
74.1
76.8
79.5
mA
LED Regulation Voltage
VLED
ILED = 80mA
500
mV
Output Switch
SW On-Resistance
RON
0.3
Ω
SW Current Limit
Duty Cycle = 90%
1.3
A
Thermal Shutdown
150
°C
LED Switch (M2, refer block
diagram) On Resistance
2
Ω



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