User manual

MCP73X23 Lithium Iron Phosphate Battery Charger Evaluation Board User’s Guide
DS51850A-page 10 © 2009 Microchip Technology Inc.
FIGURE 2-3: Simulated Battery Load for MCP73123/223.
1
DC
Power
Source
Volt
Meter
R
5Ω
10W
Microchip
Battery
Charge
Management
Controller
Amp
Meter
V
BAT+
V
BAT-
GND
1000 µF
TABLE 2-2: MCP73123/223 CHARGE STATUS OUTPUTS
CHARGE CYCLE STATE STAT
Shutdown Hi-Z
Standby Hi-Z
Preconditioning L
Constant Current Fast Charge L
Constant Voltage L
Charge Complete - Standby Hi-Z
Temperature Fault 1.6 second 50% D.C. Flashing (Type 1)
Hi-Z (Type 2)
Timer Fault 1.6 second 50% D.C. Flashing (Type 1)
Hi-Z (Type 2)
Preconditioning Timer Fault 1.6 second 50% D.C. Flashing (Type 1)
Hi-Z (Type 2)