參數(shù)資料
型號: ISL9212BIRZ
廠商: INTERSIL CORP
元件分類: 電源管理
英文描述: Charging System Safety Circuit
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12
封裝: 4 X 3 MM, ROHS COMPLIANT, PLASTIC, MO-229WGED-4, DFN-12
文件頁數(shù): 1/11頁
文件大小: 532K
代理商: ISL9212BIRZ
1
FN6399.0
ISL9212B
Charging System Safety Circuit
The ISL9212B is an integrated circuit (IC) optimized to
provide a Li-ion battery redundant safety protection from
failures of a charging system. The IC monitors the input
voltage, the battery voltage, and the charge current. When
any of the three parameters exceeds its limit, the IC turns off
an internal P-Channel MOSFET to remove the power from
the charging system. In addition to the above protected
parameters, the IC also monitors its own internal
temperature and turns off the P-Channel MOSFET when the
die temperature exceeds +140°C. Together with the battery
charger IC and the protection module in a battery pack, the
charging system using the ISL9212B has triple-level
protection and is two-fault tolerant.
The IC is designed to turn on the internal PFET slowly to
avoid inrush current at power-up but will turn off the PFET
quickly when input overvoltage is detected in order to
remove the power before any damage occurs. The
ISL9212B has a logic warning output to indicate the fault and
an enable input to allow the system to remove the input
power.
Typical Application Circuit
Features
Fully Integrated Protection Circuit for Three Protection
Variables
- User Programmable Overcurrent Protection Threshold
- Input Overvoltage Protection in Less Than 1μs
- Battery Overvoltage Protection
High Immunity of False Triggering Under Transients
High Accuracy Protection Thresholds
Warning Output to Indicate the Occurrence of Faults
Enable Input
Thermal Enhanced DFN Package
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Cell Phones
Digital Still Cameras
PDAs and Smart Phones
Portable Instruments
Desktop Chargers
Related Literature
Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Technical Brief TB379 “Thermal Characterization of
Packaged Semiconductor Devices”
Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Ordering Information
PART
NUMBER
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
PKG.
DWG. #
ISL9212BIRZ*
(Note)
2BZ
-40 to +85 12 Ld 4x3 TDFN
(Pb-free)
L12.4x3A
ISL9212EVAL1 ISL9212B Evaluation Board
*Add “-T” suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
INPUT
ISL6292
BATTERY
CHARGER
R
VB
C
1
R
ILIM
BATTERY
PACK
ISL9212B
ILIM
WRN
VIN
GND
VB
OUT
EN
+
Pinout
ISL9212B
(12 LD 4x3 TDFN)
TOP VIEW
NOTE: EPAD must be electrically connected to the GND pin.
VIN
VIN
GND
WRN
OUT
ILIM
VB
NC
OUT
NC
NC
EN
2
3
4
1
5
11
10
9
12
8
6
7
EPAD
Data Sheet
March 21, 2007
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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ISL9212EVAL1 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Charging System Safety Circuit
ISL9212EVAL1Z 制造商:Intersil Corporation 功能描述:ISL9212 EVAL BOARD 1 - ROHS COMPLIANT - TDFN - Bulk
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