MCP73871-3CAI/ML Microchip Technology, MCP73871-3CAI/ML Datasheet - Page 19

• Manufacturer Part Number: MCP73871-3CAI/ML
• Description: USB/AC Battery Charger With Power Path Management 20 QFN 4x4mm TUBE
• Manufacturer: Microchip Technology

Specifications of MCP73871-3CAI/ML

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 4.4 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-VFQFN Exposed Pad
• Product: Charge Management
• Output Voltage: 4.35 V
• Output Current: 50 mA to 1000 mA
• Operating Supply Voltage: 4.65 V to 6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP73871DM-VPCC - DEMO BOARD FOR MCP73871MCP73871EV - EVALUATION BOARD FOR MCP73871
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.0
The MCP73871 device is a simple, but fully integrated
linear charge management controllers with system
load
operational flow algorithm.
FIGURE 4-1:
© 2009 Microchip Technology Inc.
TEMPERATURE FAULT
sharing
No Charge Current
Timer Suspended
DEVICE OVERVIEW
STAT1 = LOW
STAT2 = LOW
PG = LOW
feature.
MCP73871 Device Flow Chart.
Figure 4-1
CONSTANT VOLTAGE MODE
CHARGE COMPLETE MODE
PRECONDITIONING MODE
depicts
V
FAST CHARGE MODE
Charge Voltage = V
Charge Current = I
SHUTDOWN MODE *
Charge Current = I
BAT
STANDBY MODE *
No Charge Current
STAT1 = LOW
STAT1 = LOW
STAT2 = LOW
Timer Enabled
STAT1 = Hi-Z
STAT2 = Hi-Z
STAT1 = Hi-Z
STAT2 = Hi-Z
STAT2 = Hi-Z
STAT2 = Hi-Z
STAT1 = Hi-Z
STAT1 = LOW
> (V
Timer Reset
V
STAT2 = Hi-Z
PG = LOW
PG = LOW
CE = LOW
V
PG = LOW
PG = LOW
Timer Reset
PG = Hi-Z
PG = LOW
DD
DD
the
REG
< V
< V
I
Timer Expired
V
UVLO
+100 mV)
BAT
V
BAT
BAT
BAT
< I
REG
< V
PREG
> V
REG
TERM
PTH
PTH
V
BAT
Timer Expired
> V
* Continuously Monitored
PTH
MCP73871
No Charge Current
STAT1 = LOW
STAT2 = Hi-Z
TIMER FAULT
STAT1 = LOW
STAT2 = LOW
Timer Reset
V
PG = Hi-Z
PG = LOW
IN
LBO *
< V
DS22090B-page 19
BAT