User manual

MCP73213 OVP Dual-Cell Li-Ion Battery Charger Evaluation Board User’s Guide

2.3 GETTING STARTED

The MCP73213 OVP Dual-Cell Li-Ion Battery Charger Evaluation Board is fully

assembled and tested for charging a single-cell Li-Ion or Li-Polymer battery.

2.3.1 Power Input and Output Connection

2.3.1.1 POWERING THE MCP73213 OVP DUAL-CELL LI-ION BATTERY

CHARGER EVALUATION BOARD

1. Connect the positive battery terminal to V

BAT+

and negative battery terminal to

BAT-

2. Connect the 9V DC power supply Negative Terminal to V

3. Connect the 9V DC power supply Positive Terminal to V

4. It should initiate the battery charging cycle when the power source is present and

BAT

is below recharge threshold. For example, When V

REG

is 8.4V, V

BAT

needs

to be lower than 7.98V to initiate the charge cycle.

5. The charging status table is available on Table 2-2.

6. The fast charge current is preset at 500 mA and can be increased to 1A by

connecting PROG via to ground.

FIGURE 2-1: Board Top Assembly.

Note: The Li-Ion battery pack can be replaced with test circuit or electronic load

that can sink current with DC power supply. Refer to Figure 2-3.

Note: Fast Charge Current can be programmed with various resistors based on

Figure 2-2 and Table 2-1.

9V DC SUPPLY

2-CELL

LI-ION

BATTERY