MCP73830/LT中文資料微芯科技數(shù)據(jù)手冊(cè)PDF規(guī)格書

Description:

The MCP73830/L are highly integrated, Li-Ion battery

charge management controllers for use in space-limited

applications. The MCP73830/L devices provide specific

charge algorithms for single-cell Li-Ion/Li-Polymer batteries

to achieve optimal capacity and safety in the shortest

charging time possible. Along with its small physical size,

the low number of external components makes the

MCP73830/L ideally suitable for portable applications.

The MCP73830L employs a constant-current/constant

voltage charge algorithm. The minimum 20 mA regulated

constant, fast charge current enables the design

in small Li-Ion batteries and low supply current applications.

The fast charge, constant-current value is set

with one external resistor, from 20 mA to 200 mA. The

MCP73830 allows up to 1000 mA charge current for

applications that require faster constant current.

The MCP73830/L devices provide a thermal foldback

function that 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 device reliability.

The MCP73830/L devices are fully specified over the

ambient temperature range of -40°C to +85°C. The

MCP73830/L is available in a 6 lead, TDFN package.

Features:

? Complete Linear Charge Management Controller:

- Integrated pass transistor

- Integrated current sense

- Integrated Reverse Discharge Protection

? Constant-Current/Constant Voltage Operation

? High-Accuracy Preset Voltage Regulation:

- 4.20V +0.75

? Programmable Charge Current:

- MCP73830L: 20 mA-200 mA

- MCP73830: 100 mA-1000 mA

? Soft Start to Avoid Inrush Current

? Preconditioning:

- 10 and no preconditioning

? Fixed Elapsed Timer: 4 Hours

? Fixed Preconditioning Timer: 1 Hour

? Automatic Recharge: No Auto-Recharge is also

Available with Selected Options

? Automatic End-of-Charge (EOC) Control

Termination:

- 7.5 and 10

? Automatic Power-Down when Input Power

Removed

? Undervoltage Lockout (UVLO)

? Chip/Charge Enable Pin (CE)

? Packaging:

- TDFN-6 (2x2 mm)

? Temperature Range: -40°C to +85°C

Applications:

? Bluetooth Headsets

? Portable Media Players

? Rechargeable 3D Glasses

? Toy and Gaming Controllers