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MAX1811ESA+ Datasheet

  • MAX1811ESA+

  • USB-POWERED LI+ CHARGER; Battery Management Function:Charger...

  • 167.50KB

  • 8頁

  • Maxim   Maxim

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19-2024; Rev 2; 6/03
USB-Powered Li+ Charger
General Description
The MAX1811 is a single-cell lithium-ion (Li+) battery
charger that can be powered directly from a USB port*
or from an external supply up to 6.5V. It has a 0.5%
overall battery regulation voltage accuracy to allow
maximum utilization of the battery capacity.
The charger uses an internal FET to deliver up to
500mA charging current to the battery. The device can
be configured for either a 4.1V or 4.2V battery, using
the SELV input. The SELI input sets the charge current
to either 100mA or 500mA. An open-drain output (CHG)
indicates charge status.
The MAX1811 has preconditioning that soft-starts a
near-dead battery cell before charging. Other safety
features include continuous monitoring of voltage and
current and initial checking for fault conditions before
charging.
The MAX1811 is available in a small 1.4W thermally
enhanced 8-pin SO package.
Features
o
Charges Single-Cell Li+ Batteries Directly from
USB Port
o
0.5% Overall Charging Accuracy
o
Minimal External Components
o
Input Diode Not Required
o
Automatic IC Thermal Regulation
o
Preconditions Near-Depleted Cells
o
Convenient Power SO-8 Package (1.4W)
o
Protected by U.S. Patent # 6,507,172
MAX1811
________________________Applications
PDAs and Palmtops
Digital Still Cameras
MP3 Players
Cell Phones
Two-Way Pagers
Hand-Held Computers
PART
MAX1811ESA
Ordering Information
TEMP RANGE
-40擄C to +85擄C
PIN-PACKAGE
8 SO
Typical Operating Circuit
TO LOAD
SINGLE
Li+
CELL
TO IN
LED
GND
CHG
SELI
GND
CHG
LOGIC OUT
3
Pin Configuration
TOP VIEW
BATT
4.35V TO 6.5V
4.2V
4.1V
ON
OFF
500mA
100mA
EN
SELV
IN
SELV
SELI
1
2
8
7
CHG
EN
GND
BATT
MAX1811
MAX1811
6
5
IN
4
SO
*
Protected by U.S. Patent # 6,507,172
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX1811ESA+ 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 100

  • 集成電路 (IC)

  • PMIC - 電池管理

  • -

  • 充電管理

  • 鋰離子（Li-Ion）

  • 4.35 V ~ 6.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

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