 MCP73832T-2ACI-OT device package |
 MCP73832T-2ACI-OT schematic symbol |
The vast majority of consumer and commercial electronic devices of today are battery powered. The handheld and portable electronics market has seen unprecedented growth since the introduction of smart phones, mp3 players and tablets. These devices not only need to be battery powered but they should also be compact sized and capable of providing long battery lives. The demand for small form-factor devices with extended battery lives, has forced the researchers to come up with batteries like Lithium Ion batteries. Currently Li-ion batteries are the de-facto standard in the smart phone, smart wearable and handheld electronic device market. The systems which use these batteries, also inevitably need a compact battery charging solution. A number of charge controllers ICs are now available in the market of this purpose.
What is MCP73832-2ACI/OT？
The MCP73832-2ACI/OT is a high advanced linear charge management controller developed by MICROCHIP. These charge controllers are ideal for use in space-constrained and cost-sensitive applications. Their small form factor and the need for minimum external components render them ideal for use in portable applications. The MCP73832-2ACI/OT is fully compatible with USB standard and supports USB charging systems. This advanced device employs constant voltage/constant current algorithm along with selectable preconditioning and charge termination. There are four options available for voltage regulation and the current regulation is set by the external resistor. The device also offers several options for preconditioning threshold, preconditioning current value, charge termination value, and automatic recharge threshold.
Pin Configuration
The pin configuration of the MCP73832-2ACI/OT battery charge controller is given in the table below:
| Pin name | Pin description |
| VDD | Battery management input supply |
| VBAT | Battery charge control output |
| STAT | Charge status output |
| VSS | Battery management 0V reference |
| NC | No connection |
| PROG | Current regulation set and charge control enable |
| EP | Exposed thermal pad |
Features
- Integrated pass transistor
- Integrated current sensor
- Reverse discharge protection
- Four voltage regulation options
- Programmable charge current
- Selectable preconditioning
- Selectable end-of-charge control
- Automatic power down
- Thermal regulation
Applications
The applications of MCP73832-2ACI/OT charge controller are provided as following:
- Lithium-ion and Lithium-polymer battery chargers
- Personal data assistants
- Cellular telephones
- Digital cameras
- MP3 players
- Bluetooth headsets
- USB chargers
Specifications
The major technical specifications of the MCP73832-2ACI/OT are provided as following:
- Terminals: 5
- Package: SOT-23-5
- Input voltage: 6V
- Typical supply current: 510uA
- Typical voltage regulation: 4.20V
- Line regulation: 0.09%
- Load regulation: 0.05%
- On resistance: 350 mOhm
- Max operating temperature: 125 degrees
How MCP73832-2ACI/OT work?
The MCP73832-2ACI/OT charge management controller is a highly advanced IC from MICROCHIP. This chip is ideal for power management in portable and handheld applications. The device employs advanced constant current/constant voltage algorithm. This charge controller is commonly used in switch mode power supplies, Lithium-ion battery charging in handheld device, cellular telephones, and USB chargers.
The typical application circuit of MCP73832-2ACI/OT is provided in the figure below:
MCP73832T-2ACI-OT application circuit
MCP73832-2ACI/OT Related Products Prices
MCP73832T-2ACI/OT
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Microchip Technology IC LI-ION/LI-POLY CTRLR SOT23-5 20684 $0.306 Lowest 
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