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MP3910 bảng dữ liệu(PDF) 4 Page - Monolithic Power Systems

tên linh kiện MP3910
Giải thích chi tiết về linh kiện  Peak Current Mode Boost PWM Controller with Programmable Frequency, External Soft Start, and Light Load Operation
PDF  23 Pages
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nhà sản xuất  MPS [Monolithic Power Systems]
Trang chủ  http://www.monolithicpower.com
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MP3910 bảng dữ liệu(HTML) 4 Page - Monolithic Power Systems

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MP3910 –PEAK CURRENT MODE BOOST CONTROLLER
MP3910 Rev. 1.11
www.MonolithicPower.com
4
11/6/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
(continued)
VIN = 18V, TJ= -40°C to 125°C (typical value are tested at 25°C), unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Voltage Feedback Management
Mode Detection Voltage
(7)
185
mV
Mode Detection Current
(7)
55
μA
Mode Detection Time
(7)
50
μs
TJ=25°C
1.222
1.237
1.252
V
FB Reference Voltage
VFB
TJ=-40°C to 125°C
1.211
1.237
1.258
V
FB Bias Current
IFB
VFB=1.237V, TJ= 25°C
0.01
0.15
μA
OVP Reference Level
VOVP
1.391
1.438
1.479
V
COMP Pull up Resistor
14.4
kΩ
COMP Pull up Voltage
(7)
3.6
V
Enable Control
Enable Rising Threshold
VEN-RISING
TJ=25°C
1.463
1.628
1.793
V
Enable Hysteresis
VEN-HYS
540
mV
Enable Turn-off Delay
TTD-OFF
20
μs
Enable Input Current
IEN
VEN=3V
2.5
5
μA
Thermal Protection
Thermal Shutdown
(7)
TSD
160
ºC
Thermal Hysteresis
(7)
20
ºC
Notes:
7) Guaranteed by engineering sample characterization.
8) Refer to “soft-start section” for detail function of discharge current and threshold voltage.
9) Same as Minimum On Time.



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