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参数资料
| 型号： | MAX8814ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/11页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER LI+ 28V 8TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 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（2x2） |
| 包装： | 标准包装 |
| 其它名称： | MAX8814ETA+TDKR |
28V Linear Li+ Battery Charger with
Smart Autoboot Assistant
Pin Description
PIN
1
2
3
4
5
6
7
8
—
NAME
IN
GND
ISET
ABI
ABO
EN
POK
BATT
EP
FUNCTION
Input Supply Voltage. Bypass IN to GND with a 1μF or larger ceramic capacitor to minimize line noise
and maximize input transient rejection.
Ground. Connect GND and the exposed paddle to a large copper ground plane for maximum power
dissipation. Connect GND to the exposed paddle directly under the IC.
Charge-Current Program and Fast-Charge Current Monitor. Output current from ISET is 877.2μA per
ampere of battery charging current. Set the charging current by connecting a resistor (R2 in Figure 3)
from ISET to GND. I FAST-CHARGE = 1596V / R ISET . To configure the MAX8814 as a USB charger, see
Figure 4.
Autobooting External Input. See the Autobooting Assistant section and Table 1 for autobooting
conditions. ABI is pulled to GND through an internal 200k Ω resistor.
Autobooting Logic Output. See the Autobooting Assistant section and Table 1 for autobooting
conditions.
Logic-Level Enable Input. Drive EN high to disable charger. Drive EN low or leave unconnected for
normal operation. EN has an internal 200k Ω pulldown resistor.
Input-Voltage Status Indicator. Connect a 1M Ω pullup resistor from POK to an external system supply.
POK is an open-drain output that asserts low when V IN > 4.25V and (V IN - V BATT ) ≥ 40mV. If V BATT ≥
(V IN - 40mV), the IC is shut down and POK becomes high impedance.
Battery Connection. Bypass BATT to GND with a minimum of 2.2μF of capacitor.
Exposed Paddle. Connect the exposed paddle to a large ground plane for maximum power
dissipation. Connect GND to the exposed paddle directly under the IC.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8814EVKIT+ | 功能描述:电源管理IC开发工具 MAX8814 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 |
| MAX8815AETB+ | 制造商:Maxim Integrated Products 功能描述:1A 97% EFFICIENCY 30UA QUIESCENT 制造商:Maxim Integrated Products 功能描述:1A, 97% EFFICIENCY, 30?A QUIESCENT CURRENT, STEP-UP CONVERTE - Bulk |
| MAX8815AETB+T | 功能描述:直流/直流开关转换器 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 |
| MAX8815AEVKIT+ | 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX8815A RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX8818AETM+ | 功能描述:PMIC 解决方案 10Ch PMIC for 2-Cell Li+ DVC System RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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