TI1 BQ24190RGER I2c controlled 4.5a single cell usb/adaptor charger with narrow vdc power path management and usb otg Datasheet

bq24190
SLUSAW5 – JANUARY 2012
www.ti.com
I2C Controlled 4.5A Single Cell USB/Adaptor Charger
With Narrow VDC Power Path Management and USB OTG
FEATURES
1
•
•
•
•
•
Up to 4.5A Fast Charge Rate and 6A Discharge
Rate
Single Input USB-compliant Charger
– 3.9V–17V Input Operating Voltage Range
– Input Current Limit Supports USB2.0 and
USB 3.0
– USB Host/Charging Port Detection
Compatible to USB Battery Charger Spec
1.2
– Support USB OTG
– Autonomous Charging with or without Host
Narrow System Bus Voltage Power Path
Management
– Instant-on Works with No Battery or Deeply
Discharged Battery
– Battery Supplements System When Adapter
is Fully-Loaded
1.5MHz Switching Frequency
I2C Port for Optimal System Performance and
Status Reporting
– Input Current Limit: 100mA, 150mA, 500mA,
900mA, 1.5A, 2A and 3A
– Input Voltage, Charge Voltage, Charge
Current, Minimum System Voltage, etc.
•
•
•
•
•
•
Accuracy
– ±0.5% Charge Voltage Regulation
– ±5% Charge Current Regulation
– ±5% Input Current Regulation
– ±2% Input Voltage Regulation
High Integration
– Power Path Management
– Synchronous Switching MOSFETs
– Integrated Current Sensing
– Internal Loop Compensation
Accelerate Charge Time by Battery Path
Impedance Compensation
Charge Status Outputs for LED or Host
Processor
Maximum Power Tracking Capability by Input
Voltage Regulation
4mm x 4mm QFN-24 Package
APPLICATIONS
•
•
•
Tablet PC
Portable Media Players
Portable Internet Devices
DESCRIPTION
The bq24190 is a highly-integrated switch-mode battery charge management and system power path
management device for 1 cell Li-Ion and Li-polymer batteries in a wide range of tablet and other portable
devices. Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging
time and extends battery life during discharging phase. The I2C serial interface with charging and system settings
makes the device a truly flexible solution.
The bq24190 supports a wide range of input sources, including standard USB host port, USB charging port, and
high power DC adapter. To set the default input current limit, the bq24190 detects the input source following the
USB battery charging spec 1.2. The bq24190 is compliant with USB 2.0 and USB 3.0 power spec with input
current and voltage regulation. Meanwhile, the bq24190 supports USB On-the-Go operation by supplying 5V on
VBUS with current limit up to 1.3A.
The power path management regulates the system slightly above battery voltage but does not drop below 3.5V
(programmable). With this feature, the system keeps operating even when the battery is completely depleted or
removed. When the input source current or voltage limit is reached, the power path management automatically
reduces the charge current to zero and then starts discharging the battery until the system power requirement is
met. This supplement mode operation keeps the input source from getting overloaded.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2012, Texas Instruments Incorporated
PRODUCT PREVIEW
Check for Samples: bq24190
bq24190
SLUSAW5 – JANUARY 2012
www.ti.com
DESCRIPTION (CONTINUED)
The bq24190 can initiate a new charging cycle without host control. It charges the battery in three phases:
pre-conditioning, constant current, and constant voltage. In the end, the charger automatically terminates when
the charge current is below a preset limit in the constant voltage phase. Later on, when the battery voltage falls
below the recharge threshold, the charger automatically starts another charging cycle.
The bq24190 provides various safety features for battery charging and system operation, including dual pack
negative thermistor monitoring, charging safety timer, and over-voltage/over-voltage protections. The thermal
regulation reduces charge current when the junction temperature exceeds 120°C (programmable).
The STAT output reports the charging status and any fault conditions. The INT immediately notifies the host
when a fault occurs. The bq24190 is available in a 24-pin, 4x4 mm2 thin QFN package.
bq2419x FAMILY TABLE
bq24190
bq24191
bq24192
bq24192I
I2C address
6BH
6AH
6BH
6BH
USB OTG
Yes
No
Yes
Yes
PRODUCT PREVIEW
USB Detection
D+/D-
PSEL
PSEL
PSEL
Default Battery Voltage
4.2V
4.2V
4.2V
4.1V
Default Charge Current
2A
2A
2A
1A
Maximum Pre-Charge Current
2A
2A
2A
640mA
Status Output
STAT
STAT, /PG
STAT, /PG
STAT, /PG
STAT During Fault
Blinking at 1Hz
Blinking at 1Hz
Blinking at 1Hz
10k to ground
APPLICATION DIAGRAM
SYS: 3.5V- 4.3V
VBUS
PMID
USB
D+
SW
BTST
REGN
DREGN
VREF
PGND
STAT
SYS
4.2V Battery
BAT
Host
SDA
SCL
INT
OTG
CE
ILIM
REGN
TS1
bq24190 TS2
Thermal Pad
2
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated
Product Folder Link(s) :bq24190
PACKAGE OPTION ADDENDUM
www.ti.com
9-Mar-2012
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
(3)
BQ24190RGER
PREVIEW
VQFN
RGE
24
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
BQ24190RGET
PREVIEW
VQFN
RGE
24
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
BQ24191RGER
PREVIEW
VQFN
RGE
24
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
BQ24191RGET
PREVIEW
VQFN
RGE
24
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
BQ24192RGER
PREVIEW
VQFN
RGE
24
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
BQ24192RGET
PREVIEW
VQFN
RGE
24
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
Samples
(Requires Login)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
9-Mar-2012
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
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