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MP3398D 数据表(PDF) 5 Page - Monolithic Power Systems

部件名 MP3398D
功能描述  4-String, Max 350mA/String, Step-Up, White LED Controller with Analog and PWM Dimming
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

MP3398D 数据表(HTML) 5 Page - Monolithic Power Systems

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MP3398D – 4-STRING, 350MA/STRING, STEP-UP, WHITE LED CONTROLLER
MP3398D Rev. 1.0
www.MonolithicPower.com
5
5/23/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
VIN = 12V, VEN = 5V, TA = 25°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
LED Current Regulation
ISET voltage
VISET
1.22
1.24
1.26
V
LEDX average current
ILED
RISET = 30.5
kΩ
31.9
32.9
33.9
mA
RISET = 8.87k
Ω,
FADIM = 20kHz, DADIM = 5%
5.3
5.7
6.2
mA
Current matching
(5)
RISET = 30.5
kΩ,
ILED = 32.9mA, FPWM = 100%
2.5
%
RISET = 8.87k
Ω
FADIM = 20kHz, DADIM = 5%
2.5
%
VCC max current limit
ICC_Limit
50
75
100
mA
LED MOSFET resistance
RLED
ILED = 10mA
1.7
Ω
LEDX regulation voltage
VLEDX
ILED = 330mA
800
mV
ILED = 60mA
285
mV
Protection
OVP threshold
VOVP_OV
Rising edge
1.20
1.23
1.26
V
OVP threshold hysteresis
VOVP_HYS
Hysteresis
80
mV
OVP UVLO threshold
VOVP_UV
Step-up converter fails
30
75
120
mV
LEDX UVLO threshold
VLEDX_UV
120
200
280
mV
LEDX over-voltage threshold
VLEDX_OV
5.8
6.3
6.8
V
LED short fault cycles
TLED_OV
4096
Latch-off current limit
VLMT
560
640
720
mV
Thermal protection threshold
(6)
TST
150
°C
Thermal protection hysteresis
25
°C
NOTE:
5) Matching is defined as the difference of the maximum to minimum current divided by 2 times average currents.
6) Guarantee by design.



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