bq24030, bq24031, bq24032,
bq24032A, bq24035, bq24038, bq24039
www.ti.com
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.
DESCRIPTION (CONTINUED)
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
(I
SYS-AVG
+ I
BAT-PGM
) rather than a high peak transient load.
ORDERING INFORMATION
(1)
T
A
BATTERY
VOLTAGE (V)
4.2
–40°C to 125°C
4.2
4.2
4.2
4.2
4.2
4.36
4.36
4.2/4.36 Selectable
4.2/4.36 Selectable
(1)
(2)
(3)
(4)
(5)
OUT PIN FOR AC
INPUT CONDITIONS
Regulated to 6 V
(4)
Regulated to 4.4
V
(4)
Regulated to 4.4 V
(4)
Regulated to 4.4 V
(4)
Cutoff for AC overvoltage
(5)
Cutoff for AC overvoltage
(5)
Regulated to 6
V
(4)
Regulated to 6 V
(4)
Regulated to 4.4 V
Regulated to 4.4 V
PART
NUMBER
(2) (3)
bq24030RHLR
bq24032RHLR
bq24032ARHLR
bq24032ARHLT
bq24035RHLR
bq24039RHLR
bq24031RHLR
bq24031RHLT
bq24038RHLR
bq24038RHLT
STATUS
Released
Released
Released
Released
Released
Preview
Preview
Preview
Released
Released
PACKAGE
MARKING
ANB
AMZ
BPE
BPE
ANA
ANH
BOU
BOU
BOW
BOW
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at
www.ti.com.
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.
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.
If AC < V
O(OUT-REG)
, the AC is connected to the OUT pin by a P-FET, (Q1).
If AC > V
(CUT-OFF)
the P-FET disconnects the OUT pin from the AC.
2
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