MP3910 PDF Datasheet浏览和下载

型号.:
MP3910
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内容描述:
[Peak Current Mode. Boost PWM Controller with Programmable Frequency, External Soft Start, and Light Load Operation.]
文件大小:
673 K
文件页数:
23 Pages
品牌Logo:
品牌名称:
MPS [ MONOLITHIC POWER SYSTEMS ]
PCB Prototype
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MP3910
The Future of Analog IC Technology
Peak Current Mode
Boost PWM Controller with Programmable Frequency,
External Soft Start, and Light Load Operation
DESCRIPTION
The MP3910 is a Peak Current Mode PWM
controller that can drive an external MOSFET
capable of handling more than 10A current. It
has a typical operational current of 288µA and
can accommodate flyback, boost for non-
isolated and isolated applications.
Current mode control provides inherently simple
loop compensation and cycle-by-cycle current
limit. Under-voltage lockout, soft-start, internal
regulated supply and slope compensation are
all provided to minimize the external component
count.
While designed for Flyback applications, the
MP3910 can also be used for other topologies
including Boost, Forward and Sepic. The 1A
gate driver minimizes the power loss of the
external MOSFET while allowing the use of a
wide variety of standard threshold devices.
Additionally, MP3910 has pulse skipping mode
function that improves the efficiency with light
load or no load. It also provides hiccup
protection for OLP, OVP and SCP condition.
The MP3910 is available in MSOP10 package.
FEATURES
5V to 35V Supply Voltage Range
(1)
1A 12V MOSFET Gate Driver
External Soft-Start
Pulse Skipping Operation with Light Load
Programmable
Switching
Frequency
(30kHz-to-400kHz)
Frequency Synchronizable from 80kHz-to-
400kHz
Cycle-by-Cycle Current Limit
Over Voltage Protection
Short Circuit Protection
Over Temperature Protection
Available in an MSOP10 Package
Telecom Isolated Power Supplies
Brick Modules
Off-line Controller
General Step Up Applications
APPLICATIONS
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc..
Notes:
1) Refer to “Operation/Internal VCC Regulation” section for <7V
input voltage application.
TYPICAL APPLICATION
VIN
C
IN
D
OUT
C
OUT
8
9
VIN
VCC
GATE
ISENSE
10
7
VOUT
Q1
R
FB
C
VCC
MP3910
EN
5
EN/SYNC
GND
FB
1
R
MODE
R
SENSE
R
OVH
D
FB
R
OVL
2
RT
4
SS
6
COMP
3
R
T
C
SS
MP3910 Rev. 1.11
11/6/2014
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
1