Datasheet

MCP73123/223
DS22191E-page 2  2009-2013 Microchip Technology Inc.
Typical Application
TABLE 1: AVAILABLE FACTORY PRESET OPTIONS
TABLE 2: STANDARD SAMPLE OPTIONS
Charge
Voltage
OVP
Preconditioning
Charge Current
Preconditioning
Threshold
Precondition
Timer
Elapse
Timer
End-of-
Charge
Control
Automatic
Recharge
Output
Status
3.6V 6.5V Disable/10% 2V Disable /
32 Minimum
Disable/4 hr./
6 hr./8 hr.
5%/7.5%/
10%/20%
No /
Yes
Type 1/
Type 2
7.2V 13V Disable/10% 4V Disable /
32 Minimum
Disable/4 hr./
6 hr./8 hr.
5%/7.5%/
10%/20%
No /
Yes
Type 1/
Type 2
Note 1: I
REG
: Regulated fast charge current.
2: V
REG
: Regulated charge voltage.
3: I
PREG
/I
REG
: Preconditioning charge current; ratio of regulated fast charge current.
4: I
TERM
/I
REG
: End-of-Charge control; ratio of regulated fast charge current.
5: V
RTH
/V
REG
: Recharge threshold; ratio of regulated battery voltage, 0% or 95%. 0% = Disabled.
6: V
PTH
/V
REG
: Preconditioning threshold voltage.
7: Type 1: On/Off; Type 2: Flashing. Please refer to Table 5-2.
Part
Number
V
REG
OVP I
PREG
/I
REG
Precharge
Timer
Elapse
Timer
I
TERM
/I
REG
Auto Recharge
Threshold
(0% = Disabled)
V
PTH
/V
REG
Output
Status
MCP73123-22S/MF 3.6V 6.5V 10% 32 Min. 6 hr. 10% 95% 2V Type 1
MCP73123-22A/MF 3.6V 6.5V 10% 32 Min. 6 hr. 10% 0% 2V Type 1
MCP73223-C2S/MF 7.2V 13V 10% 32 Min. 6 hr. 10% 95% 4V Type 1
MCP73223-C2A/MF 7.2V 13V 10% 32 Min. 6 hr. 10% 0% 4V Type 1
Note 1: Customers should contact their distributor, representatives or field application engineer (FAE) for support and samples.
Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of
this document. Technical support is available through the web site at: http//support.microchip.com.
2: Contact your local Microchip sales office for alternative device options.
STAT
V
DD
NC
5
3
1
2
PROG
8
7
9
10
4.7 µF
+
-
1-Cell
LiFePO
4
Battery
NC
6
4
1k
V
DD
V
BAT
V
BAT
V
SS
V
SS
4.7 µF
1.15 k
MCP73123 Typical Application
AC-DC Adapter