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BQ24030 Datasheet(PDF) 2 Page - Texas Instruments

Part # BQ24030
Description  SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINY)
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24030 Datasheet(HTML) 2 Page - Texas Instruments

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DESCRIPTION (CONTINUED)
bq24030, bq24031, bq24032A
bq24035, bq24038
SLUS618F – AUGUST 2004 – REVISED NOVEMBER 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 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 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
(ISYS-AVG + IBAT-PGM ) rather than a high peak transient load.
ORDERING INFORMATION(1)
BATTERY
OUT PIN FOR AC
PART
PACKAGE
TA
VOLTAGE (V)
INPUT CONDITIONS
NUMBER(2)(3)
MARKING
4.2
Regulated to 6 V(4)
bq24030RHLR
ANB
4.2
Regulated to 6 V(4)
bq24030RHLT
ANB
4.1
Regulated to 6 V(4)
bq24031RHLR
BZJ
4.1
Regulated to 6 V(4)
bq24031RHLT
BZJ
4.2
Regulated to 4.4 V(4)
bq24032ARHLR
BPE
–40°C to 125°C
4.2
Regulated to 4.4 V(4)
bq24032ARHLT
BPE
4.2
Cutoff for AC overvoltage(5)
bq24035RHLR
ANA
4.2
Cutoff for AC overvoltage(5)
bq24035RHLT
ANA
4.2/4.36 Selectable
Regulated to 4.4 V
bq24038RHLR
BOW
4.2/4.36 Selectable
Regulated to 4.4 V
bq24038RHLT
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
Web site at www.ti.com.
(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)
If AC < VO(OUT-REG), the AC is connected to the OUT pin by a P-FET, (Q1).
(5)
If AC > V(CUT-OFF) the P-FET disconnects the OUT pin from the AC.
2
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