EEWORLDEEWORLDEEWORLD

Part Number

Search

RT9730

Description
Charging System Safety Device
CategoryPower/power management    SingleCellLi-Ion   
File Size159KB,9 Pages
ManufacturerRichtek Technology Corporation
Websitehttps://www.richtek.com/
Download Datasheet Parametric View All

RT9730 Overview

Charging System Safety Device

RT9730 Parametric

Parameter NameAttribute value
StatusActive
Vin (min)(V)4.3
Vin (max)(V)6.5
Battery Charge Voltage (max)(V)
Battery Charge Current (max)(A)1
Input SourceAC Adapte
FeaturesUVP
Package TypeWDFN2x2-8
RT9730
Charging System Safety Device
General Description
The RT9730 is an integrated circuit (IC) designed to replace
passive device in charging system with extra protection
function. It is optimized to protect low voltage system
from up to 28V high voltage input. The IC monitors the
input voltage to make sure all parameters are operating in
normal range. It also monitors its own temperature and
turns off the MOSFET when the chip temperature exceeds
140°C. When the input voltage exceeds the threshold,
the IC turns off the power MOSFET within 1μs to remove
the power before any damage occurs. User can monitor
the adapter input voltage from the CHRIN pin, which has
50mA current capability. The gate of the P-MOSFET will
be controlled by the external charging controller from
GATDRV pin if all parameters are operating in normal
range.
The RT9730 is available in a WDFN-8L 2x2 tiny package
to achieve best solution for PCB space and total BOM
cost saving considerations.
Features
No External Blocking Diode Requiring
Over Voltage Turn Off Time of Less Than 1μs
μ
High Accuracy Protection Thresholds
Over Temperature Protection
High Immunity of False Triggering Under Transients
Thermal Enhanced 8-Lead WDFN Package
RoHS Compliant and Halogen Free
Applications
Cellular Phones
Digital Cameras
PDAs and Smart Phones
Portable Instruments
Pin Configurations
(TOP VIEW)
ACIN
ACIN
GND
NC
1
2
3
4
8
7
6
5
9
OUT
OUT
CHRIN
GATDRV
Ordering Information
RT9730
Package Type
QW : WDFN-8L 2x2 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
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.
WDFN-8L 2x2
Marking Information
JF=W
JF= : Product Code
W : Date Code
Typical Application Circuit
V
IN
RT9730
ACIN CHRIN
GATDRV
OUT
GND
1µF
0.2
VBAT
Battery
SOC
C
OUT
1µF
CHRIN
GATEDRV
OUT
C
IN
1µF
DS9730-01 April 2011
GND
www.richtek.com
1
HDMI to MIPI universal driver horizontal screen 1080P HD PC Raspberry Pi projector set-top box PS4 camera sub-screen side-transparent monitor TF card
Universal HDMI driver board, with super compatibility for HDMI signal device input, built-in speakers, headphones, TF card functions, is a new function driver board kit, suitable for projectors, PS4/P...
Jasse3 Buy&Sell
Free programming book resources recommended by foreign programmers
: [align=left][font=微软雅黑]Below are some recommended resources, including videos, university courses, and programming language tutorial websites. [/font][/align][b][b][color=rgb(46, 46, 46)][font=微软雅黑]...
tiankai001 Download Centre
If I could interview like this...
Given a new MCU that I have never seen before, with a lot of information online, I was asked to turn on an LED and a breadboard. I was told that I could apply for other components, parts, etc. If I us...
cl17726 Talking
[Help] How to burn hex file to the Flash of DSP chip F28035 through JTAG in CCS5.2
How can I use CCS5.2 to burn a hex file into the Flash of the DSPF28035 chip through JTAG? It would be best if you could provide specific steps according to CCS5. Thanks in advance....
jiangpeng DSP and ARM Processors
Windows message: What is the system message sent when the network cable is plugged in? Please explain in detail
Please help explain the system action, waiting online, closing the post immediately...
8306593 Embedded System
How to generate the burning code when developing with CCS using msp430 chip?
I looked at the forum and only saw people asking how to download the flash file to the target board. I want to ask if CCS can generate the flash file?...
F132000 Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2463  1363  2755  2869  1594  50  28  56  58  33 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号