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MP3393 数据表(PDF) 4 Page - Monolithic Power Systems

部件名 MP3393
功能描述  8-String Step-Up White LED Driver with External Transistor
PDF  19 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP3393 数据表(HTML) 4 Page - Monolithic Power Systems

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MP3393—8-STRING WHITE LED DRIVER WITH STEP-UP CONTROLLER
MP3393 Rev. 1.05
www.MonolithicPower.com
4
3/26/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 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
9
32
V
Supply Current (Quiescent)
IQ
VIN=12V, VEN=5V, no load with
switching
3
mA
Supply Current (Shutdown)
IST
VEN=0V, VIN=12V
2
μA
LDO Output Voltage
VCC
VEN=5V, 11V<VIN<32V,
0<IVCC<10mA
9
10
11
V
Input UVLO Threshold
VIN_UVLO
Rising Edge
7.5
8
8.5
V
Input UVLO Hysteresis
400
mV
EN High Voltage
VEN_HIGH
1.85
V
EN Low Voltage
VEN_LOW
0.6
V
STEP-UP CONVERTER
Gate Driver Impedance (Sourcing)
VCC=10V,VGATE=10V
4
Ω
Gate Driver Impedance (Sinking)
VCC=10V,IGATE=10mA
2
Ω
GATE Voltage
VGATE
11V<VIN<32V
10
V
Switching Frequency
fSW
ROSC= 115kΩ
120
140
160
kHz
OSC Voltage
VOSC
1.18
1.23
1.28
V
Minimum On Time
tON_MIN
PWM Mode,
with no pulse-skipping
100
ns
Maximum Duty Cycle
DMAX
90
%
ISENSE Limit
Max. Duty Cycle
135
170
205
mV
CTLx Regulation Voltage
VCTL
320
mV
CTLx Maximum Sink Current
ICTL
5.5
9.5
13.5
mA
COMP Source Current Limit
ICOMP SOLI
65
μA
COMP Sink Current Limit
ICOMP SILI
8
μA
PWM DIMMING
Minimum Dimming Threshold
VDIM_MIN
0.4
V
Maximum Dimming Threshold
VDIM_MAX
1.5
V
LED CURRENT REGULATION
FBX Regulation Average Voltage
VFBX
195
202
209
mV
FBX Regulation Voltage matching
1.0
1.2
%



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