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參數資料
| 型號： | ISL9208IRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Multi-Cell Li-ion Battery Pack OCP/Analog Front End |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| 封裝： | 5 X 5 MM, ROHS COMPLIANT, PLASTIC, MO-220VHHD-2, QFN-32 |
| 文件頁數： | 1/29頁 |
| 文件大小： | 495K |
| 代理商： | ISL9208IRZ |
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1
FN6446.0
ISL9208
Multi-Cell Li-ion Battery Pack OCP/Analog
Front End
The ISL9208 is an overcurrent protection device and analog
front end for a microcontroller in a multi-cell Li-ion battery
pack. The ISL9208 supports battery pack configurations
consisting of 5 cells to 7 cells in series and 1 or more cells in
parallel. The ISL9208 provides integral overcurrent
protection circuitry, short circuit protection, an internal 3.3V
voltage regulator, internal cell balancing switches, cell
voltage monitor level shifters, and drive circuitry for external
FET devices for control of pack charge and discharge.
Selectable overcurrent and short circuit thresholds reside in
internal RAM registers. An external microcontroller sets the
thresholds by setting register values through an I
2
C serial
interface. Internal registers also contain the detection delays
for overcurrent and short circuit conditions.
Using an internal analog multiplexer the ISL9208 provides
monitoring of each cell voltage plus internal and external
temperature by a separate microcontroller with an A/D
converter. Software on this microcontroller implements all
battery pack control functionality, except for overcurrent and
short circuit shutdown.
Ordering Information
Features
Software selectable overcurrent protection levels and
variable protect detection times
- 4 discharge overcurrent thresholds
- 4 short circuit thresholds
- 4 charge overcurrent thresholds
- 8 overcurrent delay times (Charge)
- 8 overcurrent delay times (Discharge)
- 2 short circuit delay times (Discharge)
Automatic FET turn-off and cell balance disable on
reaching external (battery) or internal (IC) temperature
limit.
Automatic over-ride of cell balance on reaching internal
(IC) temperature limit.
Fast short circuit pack shutdown
Can use current sense resistor, FET r
DS(ON)
, or Sense
FET for overcurrent detection.
Four battery backed software controlled flags.
Allows three different FET controls:
- Back-to-back N-Channel FETs for charge and discharge
control
- Single N-Channel discharge FET.
- Single N-Channel FET for discharge, with separate,
optional (smaller) back-to-back N-channel FETs for
charge.
Integrated Charge/Discharge FET Drive Circuitry with
200μA (typ) turn-on current and 150mA (typ) Discharge
FET turn-off current.
10% Accurate 3.3V voltage regulator (minimum 25mA out
with external NPN transistor having current gain of 70).
Monitored cell voltage output stable in 100μs.
Internal Cell balancing FETs handle up to 200mA of
balancing current for each cell (with the number of cells
being balanced limited by the maximum package power
dissipation of 400mW).
Simple I
2
C host interface
Sleep operation with programmable negative edge or
positive edge wake up.
<10μA Sleep Mode
Pb-free plus anneal available (RoHS compliant)
PART NUMBER
(Note)
PART
MARKING
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL9208IRZ*
ISL9208 IRZ
32 Ld 5x5 QFN
L32.5x5B
*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.
Data Sheet
February 16, 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. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相關PDF資料 |
PDF描述 |
|---|---|
| ISL9209B | Charging System Safety Circuit |
| ISL9209BIRZ | Charging System Safety Circuit |
| ISL9209 | Charging System Safety Circuit |
| ISL9209IRZ | Charging System Safety Circuit |
| ISL9209IRZ-T | Charging System Safety Circuit |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL9208IRZ-T | 功能描述:IC MULTI-CELL LI-ION PROT 32-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:電池監控器 電池化學:堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-6 包裝:帶卷 (TR) |
| ISL9209 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Charging System Safety Circuit |
| ISL9209B | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Charging System Safety Circuit |
| ISL9209BIRZ | 功能描述:IC SAFETY SYSTEM CHARGER 12-TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:電池監控器 電池化學:堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-6 包裝:帶卷 (TR) |
| ISL9209BIRZ-T | 功能描述:IC SAFETY SYSTEM CHARGER 12-TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關文件:STC3100 View All Specifications 特色產品:STC3100 - Battery Monitor IC 標準包裝:4,000 系列:- 功能:燃料，電量檢測計/監控器 電池化學:鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
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