MCP73833 Microchip Technology, Inc., MCP73833 Datasheet - Page 10

• Manufacturer Part Number: MCP73833
• Description: 1A output current linear charge management controller. Includes integrated pass transistor, integrated current sensing, and reverse discharge protection. Also includes safety features such as cell temperature monitoring, on-chip thermal regulation an
• Manufacturer: Microchip Technology, Inc.

MCP73833/4
4.0
The MCP73833/4 is a highly advanced linear charge
management controller. Refer to the functional block
diagram and
flow algorithm from charge initiation to completion and
automatic recharge.
FIGURE 4-1:
DS22005A-page 10
SYSTEM TEST (LDO) MODE
TEMPERATURE FAULT
V
No Charge Current
THERM
FUNCTIONAL DESCRIPTION
Timer Suspended
Timer Suspended
STAT1 = Hi-Z
STAT2 = Hi-Z
PROG > 20 kΩ
PG = LOW
STAT1 = LOW
STAT2 = LOW
PG = LOW
Figure 4-1
> (V
DD
- 100 mv)
Flow Chart.
that depicts the operational
CONSTANT VOLTAGE MODE
CHARGE COMPLETE MODE
PRECONDITIONING MODE
FAST CHARGE MODE
V
SHUTDOWN MODE *
Charge Current (I
Charge Current (I
Charge Voltage (V
STANDBY MODE *
BAT
No Charge Current
PROG > 200 kΩ
Timer Enabled
STAT1 = LOW
STAT1 = HI-Z
STAT2 = HI-Z
STAT1 = HI-Z
STAT2 = HI-Z
STAT1 = LOW
STAT1 = LOW
STAT2 = LOW
V
STAT2 = Hi-Z
STAT2 = Hi-Z
STAT1 = HI-Z
STAT2 = Hi-Z
(V
V
PG = LOW
Timer Reset
PG = LOW
Timer Reset
DD
PG = HI-Z
PG = LOW
PG = LOW
PG = LOW
DD
REG
< V
< V
+ 100 mv)
UVLO
BAT
V
V
V
V
Timer Expired
BAT
BAT
BAT
BAT
PREG
REG
REG
< V
> V
= V
< I
TERM
PTH
PTH
REG
V
V
BAT
BAT
< V
> V
Timer Expired
* Continuously Monitored
RTH
PTH
© 2006 Microchip Technology Inc.
No Charge Current
Timer Suspended
TIMER FAULT
STAT1 = Hi-Z
STAT2 = Hi-Z
PG = LOW