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ISL88731AHRZ-T

Description
1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28
Categorysemiconductor    Analog mixed-signal IC   
File Size1MB,24 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
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ISL88731AHRZ-T Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28

ISL88731AHRZ-T Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals28
Maximum operating temperature100 Cel
Minimum operating temperature-10 Cel
Maximum supply/operating voltage5.5 V
Minimum supply/operating voltage2.7 V
Rated supply voltage5 V
Processing package description5 × 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, PLASTIC, TQFN-28
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
packaging shapeSQUARE
Package SizeChip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
surface mountYes
Terminal formNO
Terminal spacing0.5000 mm
terminal coatingMATTE Tin
Terminal locationFour
Packaging MaterialsPlastic/Epoxy
Temperature levelother
Number of channels1
Analog IC other typesPower supply support circuit
DATASHEET
ISL88731A
SMBus Level 2 Battery Charger
The ISL88731A is a highly integrated Lithium-ion battery
charger controller, programmable over the SMBus system
management bus (SMBus). The ISL88731A 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
ISL88731A 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 sense resistors. The
ISL88731A provides 0.5% end-of-charge battery voltage
accuracy.
The ISL88731A 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 ISL88731A is available in a small 5mmx5mm 28 Ld thin
(0.8mm) QFN package. An evaluation kit is available to reduce
design time. The ISL88731A is available in Pb-Free packages.
FN6738
Rev 3.00
June 8, 2011
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 (RoHS compliant)
Pin Configuration
ISL88731A
(28 LD TQFN)
TOP VIEW
PHASE
UGATE
BOOT
CSSN
CSSP
DCIN
VCC
Applications
• Notebook Computers
• Tablet PCs
• Portable Equipment with Rechargeable Batteries
28
NC
ACIN
VREF
ICOMP
NC
VCOMP
NC
1
2
3
4
5
6
7
8
ICM
27
26
25
24
23
22
21
20
19
18
17
16
15
VDDP
LGATE
PGND
CSOP
CSON
NC
VFB
Ordering Information
PART
NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL88731AHRZ ISL887 31AHRZ -10 to +100 28 Ld 5x5 TQFN L28.5x5B
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to
TB347
for details on
reel specifications.
2. These Intersil Pb-free plastic packaged products employ special
Pb-free material sets, molding compounds/die attach materials, and
100% matte tin plate plus anneal (e3 termination finish, which is
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.
3. For Moisture Sensitivity Level (MSL), please see device information
page for
ISL88731A.
For more information on MSL please see
techbrief
TB363.
9
SDA
10
SCL
11
VDDSMB
12
GND
13
ACOK
14
NC
FN6738 Rev 3.00
June 8, 2011
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|Copyright
Intersil Americas Inc. 2008, 2009,
Page 1 of 24
2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.

ISL88731AHRZ-T Related Products

ISL88731AHRZ-T ISL88731A
Description 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28
Number of functions 1 1
Number of terminals 28 28
Maximum operating temperature 100 Cel 100 Cel
Minimum operating temperature -10 Cel -10 Cel
Maximum supply/operating voltage 5.5 V 5.5 V
Minimum supply/operating voltage 2.7 V 2.7 V
Rated supply voltage 5 V 5 V
Processing package description 5 × 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, PLASTIC, TQFN-28 5 × 5 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, PLASTIC, TQFN-28
Lead-free Yes Yes
EU RoHS regulations Yes Yes
state ACTIVE ACTIVE
packaging shape SQUARE SQUARE
Package Size Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
surface mount Yes Yes
Terminal form NO NO
Terminal spacing 0.5000 mm 0.5000 mm
terminal coating MATTE Tin MATTE Tin
Terminal location Four Four
Packaging Materials Plastic/Epoxy Plastic/Epoxy
Temperature level other other
Number of channels 1 1
Analog IC other types Power supply support circuit Power supply support circuit
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