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MAX1811

Features: Charges Single-Cell Li+ Batteries Directly from USB Port0.5% Overall Charging AccuracyMinimal External ComponentsInput Diode Not RequiredAutomatic IC Thermal RegulationPreconditions Near-Depleted CellsConvenient Power SO-8 Package (1.4W)Protected by U.S. Patent # 6,507,172Application PDA...

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SeekIC No. : 004409335 Detail

MAX1811: Features: Charges Single-Cell Li+ Batteries Directly from USB Port0.5% Overall Charging AccuracyMinimal External ComponentsInput Diode Not RequiredAutomatic IC Thermal RegulationPreconditions Near-D...

MAX1811 Data Sheet

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Part Number:
MAX1811
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

 Charges Single-Cell Li+ Batteries Directly from USB Port
 0.5% Overall Charging Accuracy
 Minimal External Components
 Input Diode Not Required
 Automatic IC Thermal Regulation
 Preconditions Near-Depleted Cells
 Convenient Power SO-8 Package (1.4W)
 Protected by U.S. Patent # 6,507,172


Application

PDAs and Palmtops
Digital Still Cameras
MP3 Players
Cell Phones
Two-Way Pagers
Hand-Held Computers


Pinout

Connection Diagram


Specifications

IN, BATT, SELI, CHG, EN to GND .................................-0.3V to 7V
SELV to GND ...............................................-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (TA = +70°C)
    8-Pin SO (derate 17.5mW/°C above +70°C)....................1.4W
Short-Circuit Duration.................................................Continuous
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Die Temperature...............................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C


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.




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