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  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP73830L Datasheet

Single-Cell Li-Ion/Li-Polymer Battery Charge Management Controllers

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MCP73830/L
Single-Cell Li-Ion/Li-Polymer Battery Charge Management
Controllers in 2x2 TDFN
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 In-Rush 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 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
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/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.
Package Types (Top View)
MCP73830/L
2x2 TDFN *
VSS 1
6 PROG
STAT 2
EP
7
5 CE
VBAT 3
4 VDD
* Includes Exposed Thermal Pad (EP); see Table 3-1.
TABLE 1: AVAILABLE FACTORY PRESET OPTIONS
Charge Voltage
Preconditioning Charge Current End-of-Charge Control
4.2V
10%/Disabled
7.5%/ 10%
Auto-Recharge
Yes/No
2011-2014 Microchip Technology Inc.
DS20005049D-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP73830L Datasheet

Single-Cell Li-Ion/Li-Polymer Battery Charge Management Controllers

No Preview Available !

MCP73830/L
Typical Application
Regulated
wall cube
4.7 µF
1 k
Lo Hi
MCP73830/L
4
VDD
VBAT
3
2
STAT
5 CE
PROG 6
4.7 µF
2 k
VSS 1
+
1-Cell
Li-Ion
Battery
-
Functional Block Diagram
VDD
Direction
Control
G=0.001
VBAT
PROG
CA
CHRG
VA
STAT
CE
UVLO,
Reference,
Charge
Control,
Timer and
Status Logic
TERM
UVLO
VSS
VREF
PRECONDITION
VREF
VREF
VREF
VREF
VREF
VDD
DS20005049D-page 2
2011-2014 Microchip Technology Inc.


Part Number MCP73830L
Description Single-Cell Li-Ion/Li-Polymer Battery Charge Management Controllers
Maker Microchip
Total Page 22 Pages
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