MCP73123_10 Datasheet, PDF (9/34 Pages) Microchip Technology – Lithium Iron Phosphate (LiFePO4) Battery Charge Management Controller with Input Overvoltage Protection

MCP73123/223
2.0 TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note: Unless otherwise indicated, V_DD = [V_REG(Typical) + 1V], I_OUT = 50 mA and T_A= +25°C, Constant-voltage mode.
3.66
3.65
3.64
3.63
3.62
3.61
3.60
3.59
3.58
3.57
3.56
3.55
ILOAD = 150 mA
V_BAT = 3.6V
T_A = +25°C
4.5
4.8
5.1
5.4
5.7
6.0
Supply Voltage (V)
FIGURE 2-1:
Battery Regulation Voltage
(V_BAT) vs. Supply Voltage (V_DD).
7.24
7.23
7.22
7.21
7.20
7.19
7.18
7.17
I_LOAD = 50 mA
V_DD = 9.2V
7.16
-5 0 5 10 15 20 25 30 35 40 45 50 55
Ambient Temperature (°C)
FIGURE 2-4:
Battery Regulation Voltage
(V_BAT) vs. Ambient Temperature (T_A).
3.65
3.64
3.63
3.62
3.61
3.60
3.59
3.58
3.57
3.56
3.55
I_LOAD = 50 mA
V_BAT = 3.6V
TA = +25°C
4.5
4.8
5.1
5.4
5.7
6.0
Supply Voltage (V)
FIGURE 2-2:
Battery Regulation Voltage
(V_BAT) vs. Supply Voltage (V_DD).
3.620
3.615
3.610
3.605
3.600
3.595
3.590
3.585
I_LOAD = 150 mA
V_DD = 5.2V
3.580
-5 0 5 10 15 20 25 30 35 40 45 50 55
Ambient Temperature (°C)
FIGURE 2-5:
Battery Regulation Voltage
(V_BAT) vs. Ambient Temperature (T_A).
7.24
7.23
7.22
7.21
7.20
7.19
7.18
7.17
ILOAD = 50 mA
VBAT = 7.2V
T_A = +25°C
7.16
8.4 9.0 9.6
10.2 10.8
Supply Voltage (V)
11.4
12.0
FIGURE 2-3:
Battery Regulation Voltage
(V_BAT) vs. Supply Voltage (V_DD).
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
V_DD = 5.2V
T_A = +25°C
1 2 3 4 5 6 7 8 9 1011121314151617181920
Programming Resistor (kΩ)
FIGURE 2-6:
Charge Current (I_OUT) vs.
Programming Resistor (R_PROG).
© 2010 Microchip Technology Inc.
DS22191B-page 9