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参数资料
| 型号： | MAX1811ESA |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Replaced by TMS320C6727B : |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 0.150 INCH, MA-012, SOIC-8 |
| 文件页数： | 7/8页 |
| 文件大小： | 167K |
| 代理商： | MAX1811ESA |
M
USB-Powered Li+ Charger
_______________________________________________________________________________________
7
Charging from AC Adapters
The MAX1811 also operates from sources other than
USB ports. The full charging input voltage range is
4.35V to 6.5V. When charging in the 500mA mode with
an AC adapter, rely on the thermal loop to limit the
power dissipation by limiting the charge current at
higher input voltages if limited PC board area is avail-
able to dissipate heat.
Capacitor Selection
Use a minimum of 2.2μF placed close to BATT for prop-
er stability. Bypass IN to GND with a 4.7μF capacitor.
Use a larger input bypass capacitor for high input volt-
ages or high charging current to reduce supply noise.
Chip Information
TRANSISTOR COUNT: 1907
PROCESS: BiCMOS
4.375V
4.735V
0.015V
4.640V
0.110V
4.625V
0.125V
4.500V
*4.400V
0.000V
4.397V
0.003V
4.378V
0.002V
4.350V
0.025V
4.750V
0.000V
LOW-POWER
FUNCTION
BUS-POWERED
HUB
HOST OR
POWERED HUB
REFERENCED
TO HUB
REFERENCED
TO SOURCE
*UNDER TRANSIENT CONDITIONS, SUPPLY AT HUB CAN DROP FROM 4.00V TO 4.070V.
Figure 3. USB Voltage Specification
MAX1811
SELI
EN
SELV
IN
4.35V TO 6.5V
4.2V
4.1V
ON
OFF
100mA
500mA
BATT
GND
GND
CHG
TO IN
TO LOAD
SINGLE
Li+
CELL
CHG
LOGIC OUT
LED
10k
Figure 4. Charging from a USB Port
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1811ESA+ | 功能描述:电池管理 USB-Powered Li+ Charger 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 |
| MAX1811ESA+T | 功能描述:电池管理 USB-Powered Li+ Charger 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 |
| MAX1811ESA-T | 功能描述:电池管理 USB-Powered Li+ Charger 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 |
| MAX1812EUB | 功能描述:电源开关 IC - USB Dual USB Switch w/Fault Blanking RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1812EUB+ | 功能描述:电源开关 IC - USB Dual USB Switch w/Fault Blanking RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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