FEDL9077-02

ML9077

PIN DESCRIPTION

Pin name

I/O

Description

Logic

Power supply

— Negative power supply pin

—

— Rechargeable battery positive power supply pin

—

— Solar cell positive power supply pin

—

— Solar cell positive power supply pin to have a charging current limitation resistor.

When the charge current limitation is needed for a solar panel, connect the positive

power(+) of solar panel to VSC pin and connect the positive power(+) to VSC® through

the current limitation register.

When the charge current limitation is Not needed for a solar panel, connect the positive

power(+) of solar panel to both VSC pin and VSC® pin.

—

Solar current monitor terminal

SCOEN

I

Solar current monitor enable pin

Positive

SCO

O Output for solar current monitor

—

BOD voltage setting input

BODLV

Brown-out detector voltage select pin

Positive

Fault charge detection voltage setting input

SCLV

I

Overcharge prevention voltage select pin

Positive

BOD output terminal

VBOD

O Brown-out detector output for rechargeable battery low voltage

—

Rechargeable battery output

VDO

O Rechargeable battery voltage output

—

TERMINATION OF UNUSED PINS

Table 3 shows methods of terminating the unused pins.

Table 3

Termination of Unused Pins

Pin

Recommended pin termination

VDO

Open

VBOD

Open

BODLV

SCLV

SCOEN

Open

SCO

Open

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