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DESCRIPTION (CONTINUED)

bq24030, bq24031, bq24032,

bq24032A, bq24035, bq24038, bq24039

SLUS618C – AUGUST 2004 – REVISED JUNE 2005

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 power select pin, PSEL, defines which input source is to be used first (primary source – AC or USB). If the

primary source is not available, then the IC automatically switches over to the other secondary source if available

or the battery as the last option. If the PSEL is set low, the USB input is selected first and if not available, the AC

line is selected (if available) but programmed to a USB input limiting rate (100 mA/500 mA max). This feature

allows the use of one input connector, where the host programs the PSEL pin according to what source is

connected (AC adaptor or USB port).

The bq24039 has replaced the PSEL pin (node now tied high internally – AC priority) with the ISET3 pin that

allows for twice the standard USB input limiting current levels (200 mA/1000 mA), when set to high. This is a

feature for manufacturers that supply their own USB power source that is rated for this higher current level.

The bq24038 replaces USBPG with pin VBSEL, to enable user selection of the charge voltage. In addition, pin

ACPG was modified to PG. PG is active low when either ac power or USB power is detected.

The ISET1 pin programs the battery's fast charge constant current level with a resistor. During normal AC

operation, the input supply provides power to both the OUT (System) and BAT pins. For peak or excessive loads

(typically when operating from the USB power, PSEL = Low) that would cause the input source to enter current

limit (or Q3 - USB FET limiting current) and its source and system voltage (OUT pin) to drop, the dynamic

power-path management (DPPM) feature reduces the charging current attempting to prevent any further drop in

system voltage. This feature allows the selection of a lower current rated adaptor based on the average load

BATTERY

OUT PIN FOR AC

PART

PACKAGE

STATUS

VOLTAGE (V)

INPUT CONDITIONS

MARKING

4.2

bq24030RHLR

Released

ANB

4.2

bq24032RHLR

Released

AMZ

–40°C to 125°C

4.2

bq24032ARHLR

Released

BPE

4.2

bq24032ARHLT

Released

BPE

4.2

bq24035RHLR

Released

ANA

4.2

bq24039RHLR

Preview

ANH

4.36

bq24031RHLR

Preview

BOU

4.36

bq24031RHLT

Preview

BOU

4.2/4.36 Selectable

Regulated to 4.4 V

bq24038RHLR

Released

BOW

4.2/4.36 Selectable

Regulated to 4.4 V

bq24038RHLT

Released

BOW

(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)

(5)

2