Product
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MCP73841
  • MCP73841

MCP73841

In Production

The MCP73841 combines high accuracy constant-voltage (0.5% max), constant-current regulation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, and charge status indication in a space saving MSOP-10 package. The device provides a complete, fully functional, stand-alone charge management solution for applications utilizing single cell Lithium-Ion or Lithium-Polymer battery packs. Two preset voltage regulation options are available, 4.1V and 4.2V, for use with either coke or graphite anodes. The MCP73841 operates with an input voltage range of 4.5V to 12V and is fully specified over the ambient temperature range of -40°C to +85°C....

Microchip Technology MCP73841 Product Info

16 April 2026 0

Parameters

Charge Safety Timers

Yes

Int/Ext FET

Ext

Linear Mode

Yes

MaxThermalRegulation

No

NumberofLiIonCells

1

Temperature Monitor

Yes

Vin Min (V)

4.5

Vin Max (V)

12

VolRegAccuracy

0.5

Features

  • Safety Charge Timers
  • Automatic Charge Termination
  • Automatic Recharge
  • Temperature Monitor
  • Charge Status Indicator
  • High Accuracy Voltage Regulation: 0.5% (Max)
  • Automatic Preconditioning of Deeply Depleted Cells
  • Shutdown Current: 0.25µA (Typical)
  • No Inductor Required
  • Programmable Charge Current
  • Automatic Power-Down When Input Power Removed
  • –40°C to +85°C Ambient Operating Temperature Range

Description

The MCP73841 combines high accuracy constant-voltage (0.5% max), constant-current regulation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, and charge status indication in a space saving MSOP-10 package. The device provides a complete, fully functional, stand-alone charge management solution for applications utilizing single cell Lithium-Ion or Lithium-Polymer battery packs. Two preset voltage regulation options are available, 4.1V and 4.2V, for use with either coke or graphite anodes. The MCP73841 operates with an input voltage range of 4.5V to 12V and is fully specified over the ambient temperature range of -40°C to +85°C.

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