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參數(shù)資料
| 型號： | MAX1772 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Cost, Multichemistry Battery- Charger Building Block |
| 中文描述： | 低成本、多種化學類型電池充電器電路 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 340K |
| 代理商： | MAX1772 |
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
Hand-Held Terminals
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.
M
Low-Cost, Multichemistry Battery-
Charger Building Block
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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IINP
CSSP
CSSN
BST
DHI
LX
VCTL
DLOV
DLO
PGND
CSIP
CSIN
BATT
CELLS
ICTL
REFIN
ACOK
ACIN
ICHG
GND
GND
CCV
CCI
CCS
REF
CLS
LDO
DCIN
QSOP
TOP VIEW
MAX1772
Pin Configuration
19-1772; Rev 2; 5/02
Ordering Information
TEMP RANGE
-40
°
C to +85
°
C
PART
PIN-PACKAGE
28 QSOP
MAX1772EEI
相關PDF資料 |
PDF描述 |
|---|---|
| MAX1772EEI | Low-Cost, Multichemistry Battery- Charger Building Block |
| MAX1820ZEUB | PLASTIC ENCAPSULATED DEVICES |
| MAX1820 | MAX1820 Evaluation Kit |
| MAX1820EVKIT | MAX1820 Evaluation Kit |
| MAX1953 | Low-Cost, High-Frequency, Current-Mode PWM Buck Controller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1772EEI | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1772EEI+ | 功能描述:電池管理 Battery-Charger Building Block RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1772EEI+T | 功能描述:電池管理 Battery-Charger Building Block RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1772EEI-T | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1772EEI-TG074 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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