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参数资料
| 型号： | MAX8568AETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC BATT MANAGE LITH 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 备份管理 |
| 电池化学： | 锂离子（Li-Ion）；镍金属氢化物（NiMH） |
| 电源电压： | 2.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（3x3） |
| 包装： | 带卷 (TR) |
19-3450; Rev 1; 5/05
ATION
AILABL
EVALU E
AV
KIT
Complete Backup-Management ICs
for Lithium and NiMH Batteries
General Description
The MAX8568A/MAX8568B backup-battery-management
ICs are complete charging and backup switchover con-
trol solutions for PDAs, Smart Phones, and other smart
portable devices. They charge both NiMH and
rechargeable lithium battery types and feature pro-
grammable charge current and termination voltage.
Separate optimized charge algorithms for both lithium
and NiMH cells are included on-chip.
The MAX8568A/MAX8568B also manage backup
switchover from a primary power source. An accurate on-
chip voltage detector monitors the main supply and
backs up two system supplies (typically I/O and memory)
when main power falls. On-chip drivers switch external
MOSFETs to disconnect the main supply from the system
loads so the backup source is not drained.
Low-voltage backup cells can be stepped up by an on-
chip synchronous-rectified, low-quiescent-current boost
converter. Additionally, a low-quiescent-current LDO gen-
Features
? Automatically Manage All Backup Switchover
Functions
? Charge Both NiMH and Rechargeable Lithium
Backup Batteries
? On-Chip Battery Boost Converter for 1-Cell NiMH
? Two Backup Output Voltages
? Programmable Charge Current
? Programmable Charge Voltage Limit
? Low 17μA Operating Current in Backup Mode
? Eliminate Many Discrete Components
? Tiny 3mm x 3mm Thin QFN Package
Ordering Information
erates a second backup voltage. The MAX8568A LDO is
preset to 2.5V while the MAX8568B LDO is preset to 1.8V.
Both devices are supplied in 16-pin 3mm x 3mm thin
QFN packages rated for -40°C to +85°C operation.
PART
MAX8568A ETE
TEMP RANGE
-40°C to +85°C
PIN-
PACKAGE
16 Thin QFN
3mm x 3mm
TOP
MARK
ACK
PDAs and PDA Phones
Applications
(T1633-4)
16 Thin QFN
Smart Phones
MAX8568B ETE
-40°C to +85°C
3mm x 3mm
(T1633-4)
ACL
DSCs and DVCs
Palmtops and Wireless Handhelds
Internet Appliances and Web-Books
MAIN BATTERY
2.8V TO 5.5V
Typical Operating Circuit
TOP VIEW
Pin Configuration
BACKUP
BATTERY
IN
BK
MAX8568A
MAX8568B
REF
TERMV
12
11
10
9
I/O OUT
3.3V, 50mA
LX
STRTV
GND
13
8
OD2
BKSU
IN
STRTV
14
7
OD1
I/O IN
PGND
GND
TERMV
15
MAX8568A
MAX8568B
6
LDO
BKV
INOK
REF
16
5
BKSU
MEM OUT
1.8V OR 2.5V, 10mA
OD1
CHGI
LDO
1
2
3
4
MEM IN
NI
THIN QFN
OD2
NI/LI
LI
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8568BETE | 功能描述:电池管理 Backup-Mgt IC for Li & NiMH Bat RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8568BETE-T | 功能描述:电池管理 Backup-Mgt IC for Li & NiMH Bat RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8569AETT+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP UP 6TDFN EP - Rail/Tube |
| MAX8569AETT+T | 功能描述:直流/直流开关转换器 200mA Step-Up DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8569AEUT | 制造商:Maxim Integrated Products 功能描述:200MA STEP-UP DC-DC CONVERTERS IN 6 - Rail/Tube |
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