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DESCRIPTION (CONTINUED)

bq24070

SLUS694A – MARCH 2006 – REVISED MARCH 2006

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOSFET gates.

The MODE pin selects the priority of the input sources. If an input source is not available, then the battery is

selected as the source. With the MODE pin high, the bq24070 attempts to charge from the input at the charge

rate set by ISET1 pin. With the MODE pin low, the bq24070 defaults to USB charging at the charge rate. This

feature allows the use of a single connector (mini-USB cable), where the host programs the MODE pin

according to the source that is connected (AC adaptor or USB port). Table 1 summarizes the MODE pin

function.

Table 1. Power Source Selection Function Summary

MODE STATE

AC

MAXIMUM

SYSTEM

USB BOOT-UP

ADAPTER

POWER

FEATURE

SOURCE

Low

Present

ISET2

USB

Enabled

Absent

N/A

Battery

Disabled

High

Present

ISET1

AC

Disabled

Absent

N/A

Battery

Disabled

(1)

BATTERY

PART

PACKAGE

OUT PIN

STATUS

VOLTAGE (V)

MARKING

4.2

bq24070RHLR

Production

BRQ

–40°C to 125°C

4.2

bq24070RHLT

Production

BRQ

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

(2)

The RHL package is available in the following options:

R - taped and reeled in quantities of 3,000 devices per reel.

T - taped and reeled in quantities of 250 devices per reel.

(3)

This product is RoHS compatible, including a lead concentration that does not exceed 0.1% of total product weight, and is suitable for

use in specified lead-free soldering processes. In addition, this product uses package materials that do not contain halogens, including

bromine (Br) or antimony (Sb) above 0.1% of total product weight.

(4)

2

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