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MP3398E 数据表(PDF) 5 Page - Monolithic Power Systems

部件名 MP3398E
功能描述  4-String, Max 400mA/String, 80V Return, Step-Up, WLED Controller
PDF  17 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP3398E 数据表(HTML) 5 Page - Monolithic Power Systems

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MP3398E
– 4-STRING, 80V, STEP-UP, WLED CONTROLLER
MP3398E Rev. 1.02
www.MonolithicPower.com
5
7/31/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, VEN = 5V, TA = 25°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Unit
General
Operating input voltage
VIN
4.5
33
V
Supply current (quiescent)
IQ
VIN = 12V, no switching
3.85
4.5
mA
Supply current (shutdown)
IST
VEN = 0V, VIN = 12V
1
μA
LDO output voltage
VCC
7V < VIN < 28V,
0 < IVCC < 10mA
5.5
5.9
6.3
V
VCC UVLO threshold
VIN_UVLO
Rising edge
3.7
4
4.3
V
VCC UVLO hysteresis
350
mV
EN high voltage
VEN_HIGH
VEN rising
1.5
V
EN low voltage
VEN_LOW
VEN falling
0.6
V
Step-Up Converter
Gate driver sourcing
impedance
VCC = 5.9V,VGATE = 5.9V
4
Ω
Gate driver sinking
impedance
VCC = 5.9V, IGATE = 10mA
2.5
Ω
Switching frequency
fSW
ROSC = 100kΩ
305
382
460
kHz
OSC voltage
VOSC
ROSC =100kΩ, fSW = 382kHz
0.77
0.8
0.83
V
Maximum duty cycle
DMAX
ROSC = 100kΩ
90
%
Cycle-by-cycle ISENSE
current limit
180
202
224
mV
COMP source current limit
ICOMP SOLI
1V < COMP < 2.9V
30
μA
COMP sink current limit
ICOMP SILI
1V < COMP < 2.9V
18
μA
COMP transconductance
GCOMP
∆I
COMP = ±10µA
120
μA/V
Current Dimming
PWM input low threshold
VPWM_LO
VPWM falling
0.4
V
PWM input high threshold
VPWM_HI
VPWM rising
1.5
V
ADIM input low threshold
VADIM_LO
VADIM falling
0.4
V
ADIM input high threshold
VADIM_HI
VADIM rising
1.5
V
Current Regulation
ISET voltage
VISET
1.95
2
2.05
V
LEDX average current
ILED
RISET = 100.8kΩ
192
202
212
mA
Current matching
(5)
ILED = 200mA
2.3
%
LEDX regulation voltage
ILED = 200mA
430
mV
ILED = 60mA
285
mV



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