Microchip MCP73833-AMI/UN Li-Ion/Li-Pol Battery Charger IC MSOP-10
Microchip MCP73833-AMI/UN linear charge controller IC for single-cell Li-Ion and Li-Pol batteries. 10-pin MSOP, programmable charge current up to 1A.
Microchip MCP73833-AMI/UN Battery Charger IC provides a 4.2 V regulated output for single-cell Li-Ion and Li-Pol batteries in a compact 10-pin MSOP package.
Overview
The MCP73833 is a stand-alone linear charge management controller designed specifically for single-cell lithium-ion (Li-Ion) and lithium-polymer (Li-Pol) batteries. Housed in a space-saving 10-pin MSOP package, it is suited to portable and consumer electronics where board space is a critical consideration. The device integrates a complete charging system and requires very few external components for operation.
Charging Operation
The charger uses a constant-current/constant-voltage (CC/CV) charge algorithm with selectable preconditioning and automatic charge termination. This supports safe charging of batteries, including those that are deeply depleted. Built-in thermal regulation automatically limits the charge current based on die temperature during high-power or high-ambient conditions, which helps protect the battery and the IC and optimises total charge cycle time.
Key Features
- Integrated pass transistor, current sense circuitry, and reverse discharge protection
- Maximum charge current programmable up to 1 A via a single external resistor
- Automatic recharge initiation, end-of-charge control, and power-down when input power is removed
- Two charge status outputs for visual or logical indication of the charging process
- Supply voltage range of 3.75 V to 6 V, suitable for a 6 V input
- Capable of adhering to USB power bus specifications for USB-port charging applications
Specifications
- Regulated output voltage: 4.2 V
- Battery compatibility: Single-cell Li-Ion and Li-Pol batteries
- Package: 10-pin MSOP
- Width: 3.3, Depth: 1.5, Height: 4.3
- Weight: 0.061 gms
Select the Microchip MCP73833-AMI/UN where a compact, linear single-cell lithium battery charger is required for portable designs powered from a 6 V or USB source.
- For portable electronics
- For consumer electronics
- For single-cell Li-Ion and Li-Pol battery charging
- For charging from a 6 V input
- Regulated Output Voltage: 4.2 V
- Supply Voltage Range: 3.75 V to 6 V
- Maximum Charge Current: Up to 1 A (programmable via a single external resistor)
- Package: 10-pin MSOP
- Battery Compatibility: Single-cell Li-Ion and Li-Pol
- Charge Algorithm: Constant-current/constant-voltage (CC/CV) with selectable preconditioning
- Special Feature: Integrated pass transistor and current sense circuitry
- Special Feature: Reverse discharge protection
- Special Feature: Thermal regulation
- Special Feature: Automatic recharge, end-of-charge control, and power-down
- Special Feature: Two charge status outputs
- Width: 3.3
- Depth: 1.5
- Height: 4.3
- Weight: 0.061 gms
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