DIO58056/B/C/D

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DIO58056/B/C/D• Rev.1.8

Pin Assignment

DFN2*2-8

EP-SOIC8

Figure 1. Top view

Pin Descriptions

Pin Name

Description

VIN

Power supply. The absolute maximum input voltage is 36 V.

ACOKb

Open-drain power presence indication. This pin is low if the voltage at the VIN pin is between

UVP and OVP.

CHGb

Open-drain charge status output. This pin is low during charging.

/EN

Charger IC enable. Drive to high to disable the charger. When this pin is driven to low or left

floating, the charger is enabled. This pin has an internal 2MΩ pull-down resistor.

GND

Ground.

IBF

Terminal current programming pin. This pin to an external resistor to program the charge

termination current. See page 8

Programming charge termination.

ISET

Charge current setting, charge current monitor and shutdown pin. The charging current is

given by IISET = (1/RISET)*1000. The chip will be shutdown when ISET pin floating.

BAT

Charge current output. Provides charge current to the battery an regulates the final float

voltage to 4.2 V/ 4.35 V/ 4.4 V/ 4.45 V.

GND (Exposed Pad)

This pin must be connected to GND, and punch to the main GND to facilitate heat dissipation.