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参数资料
| 型号： | MAX8804ZETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC USB/AC ADP CHARGER 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 0 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（2x3） |
| 包装： | 带卷 (TR) |
High-Voltage, Dual-Input, USB/AC
Adapter Chargers in 2mm x 3mm TDFN
V IN(MIN) > 4.2V + I CHARGE(MAX) x R ON
where R ON is the input-to-BAT resistance (typically
0.55 Ω for DC or 0.65 Ω for USB). Failure to meet this
requirement results in an incomplete charge or
increased charge time.
Application Circuits
Stand-Alone Li+ Charger
The MAX8804V/MAX8804W/MAX8804Y/MAX8804Z pro-
vide a complete Li+ charging solution. The Typical
Application Circuit shows the MAX8804V/MAX8804W/
MAX8804Y/MAX8804Z as a stand-alone Li+ battery
charger. The LED indicates when either fast-charge or
prequalification has begun. When the battery is fully
charged, the LED turns off.
Microprocessor-Interfaced Li+ Charger
Figure 5 shows the MAX8804V/MAX8804W/MAX8804Y/
MAX8804Z as a μP-interfaced Li+ battery charger. The
μP drives SET to enable/disable DC/USB mode charg-
ing. CHG can be used to detect the charge status of a
battery.
Layout and Bypassing
Connect the input capacitors as close as possible to
the IC. Provide a large copper GND plane to allow the
exposed paddle to sink heat away from the IC. Connect
the battery to BAT as close as possible to the IC to pro-
vide accurate battery voltage sensing. Make all high-
current traces short and wide to minimize voltage
drops. A sample layout is available in the MAX8804Z
evaluation kit to speed designs.
SYSTEM I/O
AC
ADAPTER
1 μ F
DC
MAX8804V
MAX8804W
MAX8804Y
CHG
MAX8804Z
POK
USB PORT
1 μ F
USB
<USBPWR>
μ P
(DETBAT)
BAT
SET
Li+
2.2 μ F
GND
NOTE: ( ) FOR MAX8804V/MAX8804W
< > FOR MAX8804Y/MAX8804Z
Figure 5. Microprocessor-Interfaced Li+ Charger with the MAX8804V/MAX8804W/MAX8804Y/MAX8804Z
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8804ZEVKIT+ | 功能描述:电源管理IC开发工具 MAX8804V/W/Y/Z Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX8805HEREEE+TG47 | 功能描述:直流/直流开关转换器 750mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA Power 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 |
| MAX8805WEVKIT+ | 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX8805W/X/Y/Z 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 |
| MAX8805WEWEAA+T | 功能描述:直流/直流开关转换器 600mA/650mA PWM Step-Down 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 |
| MAX8805WEWEAC+T | 功能描述:直流/直流开关转换器 600mA/650mA PWM Step-Down 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 |
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