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| 型号： | MAX8814ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/11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 |
19-0994; Rev 2; 3/08
ATION
EVALU
AVAILA
KIT
BLE
28V Linear Li+ Battery Charger with
Smart Autoboot Assistant
General Description
The MAX8814 intelligent, stand-alone constant-current,
constant-voltage (CCCV), thermally regulated linear
charger is designed for charging a single-cell lithium-
ion (Li+) battery. The MAX8814 integrates the current-
sense circuit, MOSFET pass element, thermal-
regulation circuitry, and eliminates the reverse-blocking
Schottky diode to create the simplest and smallest
charging solution for handheld equipment.
The IC controls the charging sequence from the pre-
qualification state through constant-current fast-charge
and the final constant voltage charge. Proprietary ther-
mal-regulation circuitry limits the die temperature dur-
ing fast-charging or when the IC is exposed to high
ambient temperatures, allowing maximum charging
current without damaging the IC.
The MAX8814 achieves high flexibility by providing an
adjustable fast-charge current through an external
resistor. Other features include an active-low control
input ( EN ) and an active-low input power-source detec-
tion output ( POK ). The IC also features a booting assis-
tant circuit that distinguishes input sources and battery
connection and provides an output signal (ABO) for
system booting.
The MAX8814 accepts an input supply range from
4.25V to 28V, but disables charging if the input voltage
Features
? CCCV, Thermally Regulated Linear 1-Cell Li+
Battery Charger
? No External MOSFET, Reverse Blocking Diode, or
Current-Sense Resistor
? Programmable Fast-Charge Current (1A RMS max)
? Proprietary Die Temperature Regulation Control
(+115°C)
? 4.25V to 28V Input Voltage Range with Input OVP
Above +7V
? Charge-Current Monitor for Fuel Gauging (ISET)
? Low Dropout Voltage (300mV at 500mA)
? Input Power-Source Detection Output ( POK ),
Charge-Enable Input ( EN )
? Soft-Start Limits Inrush Current
? Output for Autobooting (ABO)
? Tiny 2mm x 2mm, 8-Pin TDFN Package, 0.8mm
Height (max)
Ordering Information
exceeds +7V to protect against unqualified or faulty AC
adapters. The IC operates over the extended tempera-
ture range (-40°C to +85°C) and is available in a com-
pact 8-pin thermally enhanced TDFN 2mm x 2mm
package (0.8mm max height).
PART
MAX8814ETA+
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
8 TDFN
(2mm x 2mm)
TOP
MARK
ABI
Applications
Cellular and Cordless Phones
Smartphones and PDAs
+Denotes a lead-free and RoHS-compliant package.
Typical Operating Circuit
MP3 Players
Digital Still Cameras
4.25V TO 28V
IN
BATT
2.2 μ F
+
Li+
USB Appliances
Charging Cradles and Docks
Bluetooth ? Equipment
OFF
ON
EN
MAX8814
SYSTEM
SUPPLY
ABI
ISET
POK
Bluetooth is a registered trademark of Bluetooth SIG.
Pin Configuration appears at end of data sheet.
GND
EP
ABO
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
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|---|---|
| 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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