ISL9200
®
Data Sheet
October 4, 2005
FN9241.0
Charging System Safety Circuit
Features
The ISL9200 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 ISL9200 has triple-level protection and is two-fault
tolerant.
• 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)
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 ISL9200
has a logic warning output to indicate the fault and an enable
input to allow the system to remove the input power.
Applications
• Cell Phones
• Digital Still Cameras
• PDAs and Smart Phones
• Portable Instruments
• Desktop Chargers
Ordering Information
PART
TEMP.
PKG.
PART #
MARKING RANGE (°C) PACKAGE DWG. #
Related Literature
ISL9200IRZ*
(Note)
-40 to 85 12 Ld 4x3 DFN L12.4x3
(Pb-free)
00Z
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
ISL9200EVAL1 ISL9200 Evaluation Board
*Add “-T” suffix for tape and reel.
• Technical Brief TB379 “Thermal Characterization of
Packaged Semiconductor Devices”
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.
• Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Pinout
ISL9200 (4x3 DFN)
TOP VIEW
Typical Application Circuit
VIN
VIN
1
2
3
4
5
6
12 NC
INPUT
VIN
ISL6292
BATTERY
CHARGER
OUT
11
10
9
OUT
OUT
ILIM
VB
GND
WRN
NC
EPAD
C
1
8
ISL9200
NC
7
EN
VB
ILIM
R
VB
+
EN
R
BATTERY
PACK
ILIM
NOTE: EPAD must be electrically connected to the GND pin.
WRN
GND
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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