bq25015 CONVERTER Datasheet

bq25015 Datasheet, PDF, Equivalent


Part Number

bq25015

Description

SINGLE-CHIP CHARGER AND DC/DC CONVERTER

Manufacture

etcTI

Total Page 29 Pages
Datasheet
Download bq25015 Datasheet


bq25015
bq25015
bq25017
www.ti.com
SLUS721A – DECEMBER 2006 – REVISED MARCH 2007
SINGLE-CHIP CHARGER AND DC/DC CONVERTER IC FOR PORTABLE APPLICATIONS
FEATURES
Li-Ion Or Li-Pol Charge Management and
Synchronous DC-DC Power Conversion In a
Single Chip
Charges and Powers the System from Either
the AC Adapter or USB with Autonomous
Power Source Selection
Integrated USB Charge Control with
Selectable 100 mA and 500 mA Charge Rates
Integrated Power FET and Current Sensor for
Up to 500 mA Charge Applications AND
300 mA DC-DC Controller with Integrated
FETs
Reverse Leakage Protection Prevents Battery
Drainage
Automatic Power Save Mode For High
Efficiency at Low Current, or Forced PWM for
Frequency Sensitive Applications
APPLICATIONS
MP3 Players
PDAs, Smartphones
Digital Cameras
DESCRIPTION
The bq25015/7 are highly integrated charge and
power management devices targeted at
space-limited bluetooth applications. The bq25015/7
devices offer integrated power FET and current
sensor for charge control, reverse blocking
protection, high accuracy current and voltage
regulation, charge status, charge termination, and a
highly efficient and low-power dc-dc converter in a
small package.
The bq25015/7 devices charge the battery in three
phases: conditioning, constant current and constant
voltage. Charge is terminated based on minimum
current. An internal charge timer provides a backup
safety feature for charge termination. The bq25015/7
automatically re-starts the charge if the battery
voltage falls below an internal threshold. The
bq25015/7 automatically enters sleep mode when
VCC supply is removed.
The integrated low-power high-efficiency dc-dc
converter is designed to operate directly from a
single-cell Li-ion or Li-Pol battery pack. The output
voltage is either adjustable from 0.7 V to VBAT, or
fixed at 1.8 V (bq25017) and is capable of delivering
up to 300-mA of load current. The dc-dc converter
operates at a synchronized 1 MHz switching
frequency allowing for the use of small inductors.
AC Adapter
VDC
GND
10 μF
TYPICAL APPLICATION
bq25017RHL PG 14
5 AC
SW 19
10 μH
1.8 V
3 VSS
FB 2
10 μF
D+
D−
VBUS
10 μF
GND
USB Port
9 VSS
CE 15
18 VSS BAT/OUT 17
6 USB BAT/OUT 16
7 STAT1
ISET1 12
8 STAT2
ISET2 13
4 EN
FPWM 20
RSET
Battery
Pack
PACK+
1 μF
PACK−
+
SYSTEM
sim_app2a_lus721
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2007, Texas Instruments Incorporated

bq25015
bq25015
bq25017
SLUS721A – DECEMBER 2006 – REVISED MARCH 2007
www.ti.com
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 MOS gates.
ORDERING INFORMATION(1)
TA
-40°C to 125°C
OUTPUT VOLTAGE (V)
Adjustable
Adjustable
1.8 V
1.8 V
PART NUMBER(2)(3)
bq25015RHLR
bq25015RHLT
bq25017RHLR
bq25017RHLT
STATUS
Production
Production
Production
Production
PACKAGE
MARKING
BZL
BZL
BZM
BZM
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com
(2) The RHL package is available taped and reeled only in quantities of 3,000 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.
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
Supply voltage
AC, USB (wrt VSS)
Input voltage
PG, OUT, ISET1, ISET2, STAT1, STAT2, TS (wrt VSS)
EN, FB, FPWM, SW (wrt VSS)
Output sink/source current
PG, STAT1, STAT2
TS
Output source current
OUT
Storage temperature range, Tstg
Junction temperature range, TJ
Lead temperature (solderig, 10 seconds)
ESD rating (human body model, HBM)
bq25015/7
–0.3 V to 7 V
–0.3 V to 7 V
VOUT + 0.3 V
15 mA
200 µA
1.5 A
–65°C to 150°C
–40°C to 125°C
260°C
1500 V
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage
values are with respect to the network ground terminal unless otherwise noted.
RECOMMENDED OPERATING CONDITIONS
VCC
VCC
TA
IOUT_L
Supply voltage (from AC input)
Supply voltage (from USB input)
Operating temperature range
Maximum DC-DC output current
MIN MAX UNIT
4.5 6.5
V
4.35 6.5
0 85 °C
300 mA
DISSIPATION RATINGS
PACKAGE
20-pin RHL(1)
TA < 40°C
POWER RATING
1.81 W
DERATING FACTOR
ABOVE TA = 40°C
21 mW/°C
θJA
46.87°C/W
(1) This data is based on using the JEDEC High-K board and the exposed die pad is connected to a Cu pad on the board. This is
connected to the ground plane by a 2×3 via matrix.
2 Submit Documentation Feedback


Features bq25015 bq25017 www.ti.com SLUS721A DECEMBER 2006 – REVISED MARCH 2007 SINGLE-CHIP CHARGER AND DC/DC CONVERTE R IC FOR PORTABLE APPLICATIONS FEATURE S • Li-Ion Or Li-Pol Charge Managemen t and Synchronous DC-DC Power Conversio n In a Single Chip • Charges and Powe rs the System from Either the AC Adapte r or USB with Autonomous Power Source S election • Integrated USB Charge Cont rol with Selectable 100 mA and 500 mA C harge Rates • Integrated Power FET an d Current Sensor for Up to 500 mA Charg e Applications AND 300 mA DC-DC Control ler with Integrated FETs • Reverse Le akage Protection Prevents Battery Drain age • Automatic Power Save Mode For H igh Efficiency at Low Current, or Force d PWM for Frequency Sensitive Applicati ons APPLICATIONS • MP3 Players • PD As, Smartphones • Digital Cameras DE SCRIPTION The bq25015/7 are highly inte grated charge and power management devi ces targeted at space-limited bluetooth applications. The bq25015/7 devices offer integrated power FET and current sensor fo.
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