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MAX1645AEEI

更新时间: 2024-11-05 22:30:43
品牌 Logo 应用领域
美信 - MAXIM 电源电路电池电源管理电路光电二极管
页数 文件大小 规格书
32页 329K
描述
Advanced Chemistry-Independent, Level 2 Battery Chargers with Input Current Limiting

MAX1645AEEI 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:QSOP-28针数:28
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:5.14Is Samacsys:N
模拟集成电路 - 其他类型:BATTERY CHARGE CONTROLLER控制模式:CURRENT-MODE
控制技术:CONSTANT OFF TIME最大输入电压:28 V
最小输入电压:8 V标称输入电压:18 V
JESD-30 代码:R-PDSO-G28JESD-609代码:e0
长度:9.89 mm湿度敏感等级:1
功能数量:1端子数量:28
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):245认证状态:Not Qualified
座面最大高度:1.75 mm表面贴装:YES
切换器配置:BOOST最大切换频率:400 kHz
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

MAX1645AEEI 数据手册

 浏览型号MAX1645AEEI的Datasheet PDF文件第2页浏览型号MAX1645AEEI的Datasheet PDF文件第3页浏览型号MAX1645AEEI的Datasheet PDF文件第4页浏览型号MAX1645AEEI的Datasheet PDF文件第5页浏览型号MAX1645AEEI的Datasheet PDF文件第6页浏览型号MAX1645AEEI的Datasheet PDF文件第7页 
19-1566; Rev 2; 1/01  
Advanced Chemistry-Independent, Level 2  
Battery Chargers with Input Current Limiting  
General Description  
Features  
The MAX1645 are high-efficiency battery chargers capa-  
ble of charging batteries of any chemistry type. It uses the  
Intel System Management Bus (SMBus) to control volt-  
age and current charge outputs.  
Input Current Limiting  
175s Charge Safety Timeout  
128mA Wake-Up Charge  
When charging lithium-ion (Li+) batteries, the MAX1645  
automatically transition from regulating current to regu-  
lating voltage. The MAX1645 can also limit line input  
current so as not to exceed a predetermined current  
drawn from the DC source. A 175s charge safety timer  
prevents “runaway charging” should the MAX1645 stop  
receiving charging voltage/ current commands.  
Charges Any Chemistry Battery: Li+, NiCd,  
NiMH, Lead Acid, etc.  
Intel SMBus 2-Wire Serial Interface  
Compliant with Level 2 Smart Battery Charger  
Spec Rev. 1.0  
+8V to +28V Input Voltage Range  
Up to 18.4V Battery Voltage  
11-Bit Battery Voltage Setting  
The MAX1645 employs a next-generation synchronous  
buck control circuity that lowers the minimum input-to-  
output voltage drop by allowing the duty cycle to  
exceed 99%. The MAX1645 can easily charge one to  
four series Li+ cells.  
0.8ꢀ ꢁutput Voltage Accuracy with Internal  
Reference  
Applications  
3A max Battery Charge Current  
6-Bit Charge Current Setting  
Notebook Computers  
Point-of-Sale Terminals  
Personal Digital Assistants  
99.99ꢀ max Duty Cycle for Low-Dropout ꢁperation  
Load/Source Switchover Drivers  
>97ꢀ Efficiency  
Ordering Information  
Pin Configuration  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
28 QSOP  
TOP VIEW  
MAX1645EEI  
MAX1645AEEI  
DCIN  
LDO  
CLS  
REF  
1
2
3
4
5
6
7
8
9
28 CVS  
27 PDS  
26 CSSP  
25 CSSN  
24 BST  
23 DHI  
28 QSOP  
CCS  
CCI  
MAX1645  
MAX1645A  
CCV  
GND  
BATT  
22 LX  
21 DLOV  
20 DLO  
19 PGND  
18 CSIP  
17 CSIN  
16 PDL  
15 INT  
DAC 10  
11  
V
DD  
THM 12  
SCL 13  
SDA 14  
Typical Operating Circuit appears at end of data sheet.  
SMBus is a trademark of Intel Corp.  
QSꢁP  
________________________________________________________________ Maxim Integrated Products  
1
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.  

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