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參數(shù)資料
| 型號： | ISL88731HRZ-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | SMBus Level 2 Battery Charger |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, PLASTIC, TQFN-28 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 474K |
| 代理商： | ISL88731HRZ-T |
1
FN9258.0
ISL88731
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 10m
Ω
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
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
C
C
V
B
U
P
D
I
S
S
V
G
A
N
NC
ACIN
VREF
ICOMP
NC
VCOMP
NC
VDDP
LGATE
PGND
CSOP
CSON
NC
VFB
1
2
3
4
5
6
7
21
20
19
18
17
16
15
28
27
26
25
24
23
22
8
9
10
11
12
13
14
Ordering Information
PART
NUMBER
PART
MARKING
TEMP (°C)
PACKAGE
PKG.
DWG. #
ISL88731HRZ
(Note)
ISL887
31HRZ
-10 to +100 28 Ld 5x5 TQFN
(Pb-free)
L28.5x5B
ISL88731HRZ-T
(Note)
ISL887
31HRZ
-10 to +100 28 Ld 5x5 TQFN
(Tape and Reel)
(Pb-free)
L28.5x5B
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.
Data Sheet
November 20, 2006
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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| ISL88733HRTZ-T | 制造商:Intersil Corporation 功能描述:PB-FREE ISL88733 NB BATTERY CHARGER W/ TURBO SUPPORT (P6 SH - Tape and Reel 制造商:Intersil Corporation 功能描述:IC BATT CHRGR LI-ION/POL 28TQFN 制造商:Intersil 功能描述:SMBus Lvl 2 Battery Chargr w/ Boost Mode |
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