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RT4841 bảng dữ liệu(PDF) 1 Page - Richtek Technology Corporation

tên linh kiện RT4841
Giải thích chi tiết về linh kiện  5A Synchronous Boost Converter with Output Isolation MOS
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nhà sản xuất  RICHTEK [Richtek Technology Corporation]
Trang chủ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT4841 bảng dữ liệu(HTML) 1 Page - Richtek Technology Corporation

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RT4841
®
DS4841-00 May 2021
www.richtek.com
1
©
Copyright
2021 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Applications
TFT LCD Monitor Panel
TFT LCD TV Panel
Pin Configuration
WQFN-20L 4x4
(TOP VIEW)
Ordering Information
Note :
Richtek products are :
 RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
5A Synchronous Boost Converter with
Output Isolation MOS
General Description
The RT4841 is Synchronous Boost Converter with output
isolation MOS for active matrix thin film transistor (TFT)
liquid crystal displays (LCDs).
The Device incorporates current mode, fixed-frequency,
pulse width modulation (PWM) circuitry and fully integrated
synchronous boost converter with a 80m
Ω power switch
and a 80m
Ω rectifier switch to achieve high efficiency,
small size and fast transient response in TFT-LCD
applications. Moreover, Device contains one ISO MOSFET
controller for power on sequence of step-up converter. The
RT4841 has a wide input voltage range from 8.6V to 15.9V
and device has 5A (min.) switching current capability. The
RT4841 is available in a WQFN-20L 4x4 package.
Features
8.6V to 15.9V Input Supply Voltage
A Synchronous Boost Converter
Isolation Switch Controller
VIN Under Voltage Lockout
Fixed 500kHz Switching Frequency
Over-Temperature Protection
Cycle by Cycle OCP Protection
Thin 20-Lead WQFN Package
RT4841
Package Type
QW : WQFN-20L 4x4 (W-Type)
(Exposed Pad-Option 1)
Lead Plating System
G : Green (Halogen Free and Pb Free)
72=YM
DNN
72= : Product Code
YMDNN : Date Code
GND
GND
NC
SWO
VIN
BT
PGND
SW
SWO
PGND
1
2
3
4
67
8
9
15
14
13
12
17
20
18
19
21
PGND
5
11
10
16


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