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参数资料
| 型号： | MAX8804WETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/16页 |
| 文件大小： | 0K |
| 描述： | IC DUAL-IN ADPTR CHRGR 8-TDFN-EP |
| 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
4.15V TO 30V
4.15V TO 16V
DC
USB
DC AND USB OUTPUT CONTROL
VOLTAGE
LOOP
MAX8804V
MAX8804W
MAX8804Y
MAX8804Z
DC
POK
LOGIC
OVERVOLTAGE
PROTECTION
+105 ° C
TEMP
SENSOR
BAT
(DETBAT)
SET
CHG
POK
Li+
REF
USB
POK
BIAS
CIRCUIT
CONTROL
<USBPWR>
GND
NOTE: ( ) FOR MAX8804V/MAX8804W ONLY
< > FOR MAX8804Y/MAX8804Z ONLY
Figure 1. Functional Diagram
Detailed Description
The MAX8804V/MAX8804W/MAX8804Y/MAX8804Z dual-
input linear battery chargers use voltage, current, and
thermal-control loops to charge and protect a single Li+
battery. When a Li+ battery with a cell voltage below
2.5V is inserted, the MAX8804V/MAX8804W/MAX8804Z
chargers enter the prequalification stage where they
precharge that cell with 95mA (Figure 2). The CHG indi-
cator output is driven low to indicate entry into the pre-
qualification state. When battery voltage exceeds 2.5V,
the charger soft-starts as it enters the fast-charge stage.
The MAX8804Y eliminates the prequalification state and
enters fast-charge when the battery is inserted. The fast-
charge current level is programmed by a simple single-
wire interface. As the battery voltage approaches 4.2V,
the charging current is reduced. If the battery current
drops below the top-off current threshold, the CHG indi-
cator goes high impedance, signaling that the battery is
fully charged. The ICs then enter a constant voltage-reg-
ulation mode to maintain the battery at full charge.
The MAX8804V/MAX8804W/MAX8804Y/MAX8804Z auto-
matically select between either a USB or AC adapter
input source. The AC adapter charge current is pro-
grammable from 400mA to 700mA in 50mA steps
through a simple single-wire interface (see Tables 2, 3,
and 4). The USB charge current is programmable to
95mA, 380mA, or 475mA through the same interface
(see Tables 5 and 6).
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8804YETA+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8804YETA+T | 功能描述:电池管理 Dual-Input USB/AC Adapter 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 |
| MAX8804ZETA+ | 制造商:Maxim Integrated Products 功能描述:CHARGER HIGH VOLT DUAL INPUT SMD 制造商:Maxim Integrated Products 功能描述:CHARGER, HIGH VOLT, DUAL INPUT, SMD |
| MAX8804ZETA+T | 功能描述:电池管理 Dual-Input USB/AC Adapter 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 |
| 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 |
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