datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

ISL88731HRZ View Datasheet(PDF) - Intersil

Part Name
Description
View to exact match
ISL88731HRZ
Intersil
Intersil Intersil
ISL88731HRZ Datasheet PDF : 22 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
®
Data Sheet
November 20, 2006
ISL88731
FN9258.0
SMBus Level 2 Battery Charger
The ISL88731 is a highly integrated Lithium-ion battery
charger controller, programmable over the SMBus system
management bus (SMBus). The ISL88731 is intended to be
used in a smart battery charger (SBC) within a smart battery
system (SBS) that throttles the charge power such that the
current from the AC adapter is automatically limited. High
efficiency is achieved with a DC/DC synchronous-rectifier
buck converter, equipped with diode emulation for enhanced
light load efficiency and system bus boosting prevention. The
ISL88731 charges one to four Lithium-ion series cells, and
delivers up to 8A charge current. Integrated MOSFET
drivers and bootstrap diode result in fewer components and
smaller implementation area. Low offset current-sense
amplifiers provide high accuracy with 10mΩ sense resistors.
The ISL88731 provides 0.5% end-of-charge battery voltage
accuracy.
The ISL88731 provides a digital output that indicates the
presence of the AC adapter as well as an analog output
which indicates the adapter current within 4% accuracy.
The ISL88731 is available in a small 5mm x 5mm 28 Ld thin
(0.8mm) QFN package. An evaluation kit is available to
reduce design time. The ISL88731 is available in Pb-free
packages.
Pinout
ISL88731
(28 LD TQFN)
TOP VIEW
28 27 26 25 24 23 22
NC 1
21 VDDP
ACIN 2
20 LGATE
VREF 3
19 PGND
ICOMP 4
18 CSOP
NC 5
17 CSON
VCOMP 6
16 NC
NC 7
15 VFB
8 9 10 11 12 13 14
Features
• 0.5% Battery Voltage Accuracy
• 3% Adapter Current Limit Accuracy
• 3% Charge Current Accuracy
• SMBus 2 Wire Serial Interface
• Battery Short Circuit Protection
• Fast Response for Pulse-Charging
• Fast System-Load Transient Response
• Monitor Outputs
- Adapter Current (3% Accuracy)
- AC Adapter Detection
• 11 Bit Battery Voltage Setting
• 6 Bit Charge Current/Adapter Current Setting
• 8A Maximum Battery Charger Current
• 11A Maximum Adapter Current
• +8V to +28V Adapter Voltage Range
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Notebook Computers
• Tablet PCs
• Portable Equipment with Rechargeable Batteries
Ordering Information
PART
NUMBER
PART
MARKING TEMP (°C) PACKAGE
PKG.
DWG. #
ISL88731HRZ
(Note)
ISL887
31HRZ
-10 to +100 28 Ld 5x5 TQFN L28.5x5B
(Pb-free)
ISL88731HRZ-T
(Note)
ISL887
31HRZ
-10 to +100 28 Ld 5x5 TQFN L28.5x5B
(Tape and Reel)
(Pb-free)
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.
1
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.
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]