BQ24715RGRR [TI]
2-3 Cell NVDC-1 Battery Charger Controller with Ultra-Fast Transient Response and High Light-Load Efficiency; 2-3细胞NVDC - 1电池充电器控制器与超快速瞬态响应和高轻负载效率型号: | BQ24715RGRR |
厂家: | TEXAS INSTRUMENTS |
描述: | 2-3 Cell NVDC-1 Battery Charger Controller with Ultra-Fast Transient Response and High Light-Load Efficiency |
文件: | 总8页 (文件大小:760K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
bq24715
www.ti.com
SLUSBD1 –FEBRUARY 2013
2-3 Cell NVDC-1 Battery Charger Controller
with Ultra-Fast Transient Response and High Light-Load Efficiency
Check for Samples: bq24715
1
FEATURES
APPLICATIONS
•
6-24V Input SMBus NVDC-1 2-3S Battery
Charger Controller
•
•
•
Ultrabook, Notebook, and Tablet PC
Industrial and Medical Equipment
Portable Equipment
•
System Instant-on Operation with No Battery
or Deeply Discharged Battery
•
•
Ultra-Fast Transient Response of 100 µs
DESCRIPTION
The bq24715 is a NVDC-1 synchronous battery
charge controller with low quiescent current, high light
load efficiency for 2S or 3S Li-ion battery charging
applications, offering low component count.
Ultra-Low Quiescent Current of 500 µA and
High PFM Light Load Efficiency 80% at 20mA
load to Meet Energy Star and ErP Lot6
•
•
Switching Frequency: 600kHz/800kHz/1MHz
The power path management allows the system to be
regulated at battery voltage but does not drop below
the programmable system minimum voltage.
Programmable System/Charge Voltage (16
mV/step), Input/Charge Current (64 mA/step)
with High Accuracy
The bq24715 provides N-channel ACFET and RBFET
drivers for the power path management. It also
provides driver of the external P-channel battery FET.
The loop compensation is fully integrated.
–
–
–
±0.5% Charge Voltage Regulation
±3% Input/Charge Current Regulation
±2% 40x Input/16x Discharge Current
Monitor Output
The bq24715 has programmable 11-bit charge
voltage, 7-bit input/charge current and 6-bit minimal
system voltage with very high regulation accuracies
through the SMBus communication interface.
•
•
Support Battery LEARN Function
Maximize CPU Performance with Deeply
Discharged Battery or No Battery
•
•
Integrated NMOS ACFET and RBFET Driver
20-pin 3.5 x 3.5 mm2 QFN Package
The bq24715 monitors adapter current or battery
discharge current through the IOUT pin allowing the
host to throttle down CPU speed when needed.
The bq24715 provides extensive safety features for
over current, over voltage and MOSFET short circuit.
Simplified Application Diagram
Ultra-Low Quiescent
Current
Ultra-Fast
DPM
Support CPU Turbo Mode
To System
Adaptor
6-24V
Iin
Enhanced Safety
Features
OCP, OVP,
FET Short
Optional
N-FET
Driver
bq24715
Adaptor Detection
Ichg
PMOS BAT
FET Driver
NVDC-1
Charger
Controller
SMBus Controls V and I
with High Accuracy
SMBus
2S-3S
HOST
Iin, Idischarge
Integrated Compensation Internal Soft Start
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 © 2013, Texas Instruments Incorporated
PACKAGE OPTION ADDENDUM
www.ti.com
28-Feb-2013
PACKAGING INFORMATION
Orderable Device
BQ24715RGRR
BQ24715RGRT
Status Package Type Package Pins Package Qty
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Top-Side Markings
Samples
Drawing
(1)
(2)
(3)
(4)
ACTIVE
VQFN
VQFN
RGR
20
20
3000
250
Green (RoHS
& no Sb/Br)
CU NIPDAU
CU NIPDAU
Level-2-260C-1 YEAR
BQ715
BQ715
ACTIVE
RGR
Green (RoHS
& no Sb/Br)
Level-2-260C-1 YEAR
(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.
(4) Only one of markings shown within the brackets will appear on the physical device.
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.
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 1
PACKAGE MATERIALS INFORMATION
www.ti.com
4-Mar-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
BQ24715RGRR
BQ24715RGRT
VQFN
VQFN
RGR
RGR
20
20
3000
250
330.0
180.0
12.4
12.4
3.75
3.75
3.75
3.75
1.15
1.15
8.0
8.0
12.0
12.0
Q1
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
4-Mar-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
BQ24715RGRR
BQ24715RGRT
VQFN
VQFN
RGR
RGR
20
20
3000
250
367.0
210.0
367.0
185.0
35.0
35.0
Pack Materials-Page 2
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