Microchip Technology ADM00313 Data Sheet

 2011-2013 Microchip Technology Inc.

DS20005049C-page 1

• 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 In-Rush Current

• Preconditioning:

- 10% and no preconditioning

• Fixed Elapse Timer: 0 Hour or 4 Hours

• Fixed Preconditioning Timer: 1 Hour

• Automatic Recharge: No Auto-Recharge is also 

available with Selected Options

• Automatic End-of-Charge 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

• Bluetooth Headsets

• Portable Media Players

• Rechargeable 3D Glasses

• Toy and Gaming Controllers

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/L allows up to 1000 mA charge current
for applications that require faster constant current.

The MCP73830/L provides 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 is fully specified over the ambient
temperature range of -40°C to +85°C. The
MCP73830/L is available in a 6 lead, TDFN package.

2x2 TDFN *

* Includes Exposed Thermal Pad (EP); see 

.

V

BAT

STAT

CE

V

DD

1

2

3

6

5

4

PROG

V

SS

EP

7