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參數(shù)資料
| 型號： | MAX1870AETJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Step-Up/Step-Down Li+ Battery Charger |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC32 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, MO-220WHHD-2, TQFN-32 |
| 文件頁數(shù)： | 1/32頁 |
| 文件大?。?/td> | 1091K |
| 代理商： | MAX1870AETJ |
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General Description
The MAX1870A step-up/step-down multichemistry bat-
tery charger charges with battery voltages above and
below the adapter voltage. This highly integrated
charger requires a minimum number of external compo-
nents. The MAX1870A uses a proprietary step-up/step-
down control scheme that provides efficient charging.
Analog inputs control charge current and voltage, and
can be programmed by the host or hardwired.
The MAX1870A accurately charges two to four lithium-
ion (Li+) series cells at greater than 4A. A programma-
ble input current limit is included, which avoids
overloading the AC adapter when supplying the load
and the battery charger simultaneously. This reduces
the maximum adapter current, which reduces cost. The
MAX1870A provides analog outputs to monitor the cur-
rent drawn from the AC adapter and charge current. A
digital output indicates the presence of an AC adapter.
When the adapter is removed, the MAX1870A con-
sumes less than 1μA from the battery.
The MAX1870A is available in a 32-pin thin QFN (5mm
x 5mm) package and is specified over the -40
°
C to
+85
°
C extended temperature range. The MAX1870A
evaluation kit (MAX1870AEVKIT) is available to help
reduce design time.
Applications
Notebook and Subnotebook Computers
Hand-Held Terminals
Features
Patented Step-Up/Step-Down Control Scheme*
±
0.5% Charge-Voltage Accuracy
±
9% Charge-Current Accuracy
±
8% Input Current-Limit Accuracy
Programmable Maximum Battery Charge Current
Analog Inputs Control Charge Current, Charge
Voltage, and Input Current Limit
Analog Output Indicates Adapter Current
Input Voltage from 8V to 28V
Battery Voltage from 0 to 17.6V
Charges Li+ or NiCd/NiMH Batteries
Tiny 32-Pin Thin QFN (5mm x 5mm) Package
M
Step-Up/Step-Down
Li+ Battery Charger
________________________________________________________________
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.
1
Ordering Information
MAX1870A
REFIN
SHDN
ICTL
DCIN
VHP
CSSP
CSSN
DHI
DBST
CSIP
CSIN
BATT
BLKP
ASNS
IINP
VCTL
LDO
PGND
GND
SYSTEM
LOAD
N
P
CLS
CELLS
FROM WALL ADAPTER
CSSS
VHN
REF
DLOV
Typical Operating Circuit
19-3243; Rev 0; 4/04
EVALUATION KIT
AVAILABLE
Pin Configuration appears at end of data sheet.
PART
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
32 Thin QFN
MAX1870AETJ
*
Protected by U.S. Patent No. 6,087,816.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1870AETJ+ | 功能描述:電池管理 Li+ Step Up/Step Down Battery Charger 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 |
| MAX1870AETJ+T | 功能描述:電池管理 Li+ Step Up/Step Down Battery Charger 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 |
| MAX1870AETJ-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 |
| MAX1870AEVKIT | 功能描述:電源管理IC開發(fā)工具 Evaluation Kit for the MAX1870A RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX1870ETJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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