Datasheet

MCP1630 Low-Cost NiMH Battery Charger Reference Design

FIGURE 2-3: Simulated Battery Load.

2.3.1.3 STATUS LED

1. The MCP1630 Low-Cost NiMH Battery Charger has an LED to indicate charge

status or fault status. Table 2-1 represents the state of the LED during various

states of the charge cycle.

2.3.1.4 PROGRAMMING

Header J3 is provided for in-system circuit programming.

TABLE 2-1: STATUS OUTPUT

CHARGE CYCLE STATE LED

Qualification

OFF

Preconditioning ON

Constant Current Fast Charge ON

Top Off Charge ON

Charge Complete OFF

Safety Timer Fault Flashing (2 Hz, 50% duty cycle)

Cell Temperature Invalid Flashing (1 Hz, 50% duty cycle)

Battery Disconnected OFF

Input Power Removed OFF

1,000 µF

10V AL

2Ω

10W

VBAT+

VBAT-

Variable

Power Supply

0V - 6V