MCP73837T-FCI/SL Microchip Technology, MCP73837T-FCI/SL Datasheet

MCP73837T-FCI/SL

Manufacturer Part Number

MCP73837T-FCI/SL

Description

SINGLE CELL Li-Ion/Li-POLYMER CHARGE MGMT CONTROLLER, -40C to +85C, 14-SOIC 150mil, T/R

Manufacturer

Microchip Technology

Datasheet

1.MCP73837T-FCISL.pdf (30 pages)

Current page: 1 of 30
Download datasheet (670Kb)

Features

• High Accuracy Preset Voltage Regulation: + 0.5%

• Available Voltage Regulation Options:

• Complete Linear Charge Management Controller:

• Constant Current (CC) / Constant Voltage (CV)

• Selectable USB-Port Charge Current:

• Programmable AC-Adapter Charge Current:

• Two Charge Status Outputs

• Power-Good Monitor: MCP73837

• Timer Enable: MCP73838

• Automatic Recharge:

• Automatic End-of-Charge Control:

• Preconditioning of Deeply Depleted Cells - can be

• Battery Cell Temperature Monitor

• UVLO (Undervoltage Lockout)

• Automatic Power-Down when Input Power is

• Low-Dropout (LDO) Linear Regulator Mode

• Numerous Selectable Options Available for a

• Temperature Range: -40°C to 85°C

• Packaging:

Advanced Stand-Alone Li-Ion / Li-Polymer Battery Charge

- 4.20V, 4.35V, 4.4V, or 4.5V

- Autonomous Power Source Selection

- Integrated Pass Transistors

- Integrated Current Sense

- Integrated Reverse Discharge Protection

Operation with Thermal Regulation

- Low: 1 Unit Load / High: 5 Unit Loads

- 15 mA - 1000 mA

- Selectable Voltage Threshold

- Selectable Charge Termination Current Ratio

- Selectable Safety Timer Period

disabled

Removed

Variety of Applications:

- Refer to Section 1.0 “Electrical

- Refer to the “Product Identification

- 10-Lead 3 mm x 3 mm DFN

- 10-Lead MSOP*

Management Controller with Autonomous AC-Adapter or

Characteristics” for Selectable Options”

System” for Standard Options

* Consult Factory for MSOP Package

Availability.

USB-Port Source Selection

Applications

• Smart Phones and Personal Data Assistants

• Portable Media Players(PMP)

• Ultra Mobile Devices(UMD)

• Digital Cameras

• MP3 Players

• Bluetooth Headsets

• Handheld Medical Devices

• AC/USB Dual Source Li-Ion Battery Chargers

Description

The MCP73837 and MCP73838 devices are fully

integrated linear Li-Ion / Li-Polymer battery chargers

with autonomous power source selection. Along with its

small physical size, the low number of external

components required makes the MCP73837/8 ideally

suitable for portable applications.

The MCP73837/8 automatically selects the USB-Port

or AC-Adapter as the power source for the system. For

the USB-Port powered systems, the MCP73837/8

specifically adheres to the current limits governed by

the USB specification. The host microcontroller can

select from two preset maximum charge current rates

of 100 mA (low power USB-port) or 500 mA (high

power USB-port). With an AC-Adapter providing power

to the system, an external resistor sets the magnitude

of the system or charge current up to a maximum of 1A.

The MCP73837/8 employs a constant current /

constant voltage charge algorithm with selectable

preconditioning and charge termination. The constant

voltage regulation is fixed with four available options:

4.20V, 4.35V, 4.40V, or 4.50V, to accommodated the

new emerging battery charging requirements. The

MCP73837/8 limits the charge current based on die

temperature during high power or high ambient

conditions. This thermal regulation optimizes the

charge cycle time while maintaining the device

reliability.

The MCP73837/8 are fully specified over the ambient

temperature range of -40°C to +85°C.

The MCP73837/8 devices are available in a 10-Lead,

3 mm x 3 mm, DFN package or in a 10-Lead MSOP

package.

MCP73837/8

(PDA)

DS22071A-page 1

Related parts for MCP73837T-FCI/SL

Related keywords

MCP73837T-FCI/SL datasheet
MCP73837T-FCI/SL data sheet
MCP73837T-FCI/SL pdf datasheet
MCP73837T-FCI/SL component
MCP73837T-FCI/SL part
MCP73837T-FCI/SL distributor
MCP73837T-FCI/SL RoHS
MCP73837T-FCI/SL datasheet download