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| 型号： | MAX8568AETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/17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) |
Complete Backup-Management ICs
for Lithium and NiMH Batteries
1.12V
BK
CHARGER
IN
INOK
I/O IN
I/O OUT
STEP-UP DC-DC CONVERTER
OD1
MEM IN
MEM OUT
LDO
OD2
Figure 1. Timing Diagram
2.43V
50 μ s
? 41 . 2 × ( V IN BK ) + 679 . 4 ?
? V
I CHG ( mA )
Applications Information
Setting the Charge Current
Charge current is set by a resistor connected from
CHGI to GND (R5 in Figure 7). The acceptable resistor
range is from 50k ? to 1800k ? . R CHGI is calculated by
the following.
1 . 1641
R CHGI ( k ? ) = ? ?
? ?
? ?
where V BK is the nominal voltage of the charged back-
up battery. This is the fast-charge current for both
NiMH and lithium batteries. For NiMH batteries, the
trickle charge is 10% of the fast-charge current.
Using a Rechargeable Lithium
Backup Battery
The MAX8568 can charge a lithium-type backup bat-
tery from the main battery connected at IN. Connect
NI/LI to GND for lithium backup battery charging.
STRTV is unused and should be connected to GND in
lithium charge mode.
10
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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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