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| 型号： | MAX1772EEI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC BAT CHRG BUILD BLCK 28QSOP |
| 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： | 多化学 |
| 电源电压： | 8 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 28-QSOP |
| 包装： | 带卷 (TR) |
19-1772; Rev 4; 2/09
Low-Cost, Multichemistry Battery-
Charger Building Block
General Description
The MAX1772 is a highly-integrated, multichemistry
battery-charger control IC that simplifies the construc-
tion of accurate and efficient chargers. The MAX1772
uses analog inputs to control charge current and volt-
age and can be programmed by the host or hardwired.
High efficiency is achieved by a buck topology with
synchronous rectification.
Maximum current drawn from the AC adapter is pro-
grammable to avoid overloading the AC adapter when
supplying the load and the battery charger simultane-
ously. This enables the user to reduce the cost of the
AC adapter. The MAX1772 provides outputs that can
be used to monitor the current drawn from the AC
adapter, battery-charging current, and the presence of
an AC adapter.
The MAX1772 can charge two to four lithium-ion (Li+)
series cells, easily providing 4A. When charging, the
MAX1772 automatically transitions from regulating cur-
rent to regulating voltage. It is available in a space-sav-
ing 28-pin QSOP package.
Applications
Notebook and Subnotebook Computers
Personal Digital Assistants
Handheld Terminals
Pin Configuration
Features
o Input Current Limiting
o ±0.5% Output Voltage Accuracy Using Internal
Reference (0°C to +85 ° C)
o Programmable Battery Charge Current >4A
o Analog Inputs Control Charge Current and
Charge Voltage
o Monitor Outputs for:
Current Drawn from AC Input Source
Charging Current
AC Adapter Present
o Up to 18.2V (max) Battery Voltage
o 8V to 28V Input Voltage
o > 95% Efficiency
o 99.99% (max) Duty Cycle for Low-Dropout
Operation
o Charges Any Battery Chemistry: Li+, NiCd, NiMH,
Lead Acid, etc.
Ordering Information
TOP VIEW
PART
MAX1772EEI
TEMP RANGE
-40 ° C to +85 ° C
PIN-PACKAGE
28 QSOP
DCIN 1
28 IINP
MAX1772EEI+
-40 ° C to +85 ° C
28 QSOP
LDO 2
CLS 3
REF 4
27 CSSP
26 CSSN
25 BST
+Denotes lead(Pb)-free/RoHS-compliant package.
CCS 5
CCI 6
CCV 7
GND 8
GND 9
ICHG 10
ACIN 11
ACOK 12
REFIN 13
ICTL 14
MAX1772
QSOP
24 DHI
23 LX
22 DLOV
21 DLO
20 PGND
19 CSIP
18 CSIN
17 BATT
16 CELLS
15 VCTL
________________________________________________________________ Maxim Integrated Products
1
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1772EEI-TG074 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1772EVKIT | 功能描述:电池管理 MAX1772EVKIT 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 |
| MAX1773AEUP | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX1773AEUP+ | 功能描述:电池管理 Power Source Selector for Dual-Battery Systems 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 |
| MAX1773AEUP+T | 功能描述:电池管理 Power Source Selector for Dual-Battery Systems 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 |
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