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MP3388S 数据表(PDF) 4 Page - Monolithic Power Systems

部件名 MP3388S
功能描述  50V, 8-String, Step-Up, White LED Driver
PDF  15 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP3388S 数据表(HTML) 4 Page - Monolithic Power Systems

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MP3388S—50V, 8-STRING, STEP-UP, WHITE LED DRIVER
MP3388S Rev.1.01
www.MonolithicPower.com
4
10/29/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 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
LEDx Average Current
ILED
RISET=60.4kΩ
19.4
20
20.6
mA
Current Matching
(5)
ILED=20mA
2.5
%
Maximum LED Current per
String
ILEDmax
30
mA
ISET Regulation Voltage
1.18
1.22
1.26
V
LEDx Regulation Voltage
VLEDX
ILED=20mA
500
600
700
mV
PROTECTION
OVP Over-Voltage Threshold
VOVP_OV
Rising Edge
1.17
1.23
1.3
V
OVP UVLO threshold
VOVP_UV
Step-up Converter Fails
48
70
102
mV
LEDx Over-Voltage Threshold
VLEDX_OV
VIN>5.5V
5.1
5.5
5.9
V
LEDx UVLO Threshold
VLEDX_UV
150
200
250
mV
Thermal Shutdown Threshold
(6)
TST
130
150
℃
LEDx Over-Voltage Fault Timer
Vosc=high
1.3
1.6
1.9
ms
VFAULT Pull-Down Current
IFAULT
40
55
70
μA
VFAULT Blocking-Off Voltage
(with Respect to VIN)
VFAULT
VIN =12V, VIN–VFAULT
6
V
Notes:
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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