bq24075-Q1 IC Datasheet

bq24075-Q1 Datasheet PDF, Equivalent


Part Number

bq24075-Q1

Description

1.5A USB-FRIENDLY Li-Ion BATTERY CHARGER AND POWER-PATH MANAGEMENT IC

Manufacture

etcTI

Total Page 30 Pages
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bq24075-Q1
bq24075-Q1
www.ti.com
SLUSAU3B – FEBRUARY 2012 – REVISED MARCH 2012
1.5A USB-FRIENDLY Li-Ion BATTERY CHARGER AND POWER-PATH MANAGEMENT IC
Check for Samples: bq24075-Q1
FEATURES
1
• Qualified for Automotive Applications
• AEC-Q100 Qualified with the following results
– Device Temperature Grade 1: -40°C to
+125°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
• Fully Compliant USB Charger
– Selectable 100mA and 500mA Maximum
Input Current
– 100mA Maximum Current Limit Ensures
Compliance to USB-IF Standard
– Input based Dynamic Power Management
(VIN-DPM) for Protection Against Poor USB
Sources
• 28V Input Rating with Overvoltage Protection
• Integrated Dynamic Power Path Management
(DPPM) Function Simultaneously and
Independently Powers the System and
Charges the Battery
• Supports up to 1.5A Charge Current with
Current Monitoring Output (ISET)
• Programmable Input Current Limit up to 1.5A
for Wall Adapters
• Battery Disconnect Function with SYSOFF
Input
• Programmable Pre-Charge and Fast-Charge
Safety Timers
• Reverse Current, Short-Circuit and Thermal
Protection
• NTC Thermistor Input
• Proprietary Start Up Sequence Limits Inrush
Current
• Status Indication – Charging/Done, Power
Good
• Small 3 mm × 3 mm 16 Lead QFN Package
DESCRIPTION
The bq24075-Q1 device is integrated Li-ion linear
charger and system power path management device
targeted at space-limited portable applications. The
device operate from either a USB port or AC adapter
and support charge currents up to 1.5A. The input
voltage range with input overvoltage protection
supports unregulated adapters. The USB input
current limit accuracy and start up sequence allow
the bq24075-Q1 to meet USB-IF inrush current
specification. Additionally, the input dynamic power
management (VIN-DPM) prevents the charger from
crashing incorrectly configured USB sources.
The bq24075-Q1 features dynamic power path
management (DPPM) that powers the system while
simultaneously and independently charging the
battery. The DPPM circuit reduces the charge current
when the input current limit causes the system output
to fall to the DPPM threshold; thus, supplying the
system load at all times while monitoring the charge
current separately. This feature reduces the number
of charge and discharge cycles on the battery, allows
for proper charge termination and enables the system
to run with a defective or absent battery pack.
Typical Application Circuit
1kW
1kW
IN
1mF
System
ON/OFF
Control
IN
13
bq24075-Q1
8 VSS
15 SYSOFF
OUT 10
11
EN 2 5
BAT 2
3
TS 1
4.7mF
SYSTEM
4.7mF
TEMP
PACK+
1.18kW 1.13kW
PACK-
APPLICATIONS
• Automotive
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.
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 © 2012, Texas Instruments Incorporated

bq24075-Q1
bq24075-Q1
SLUSAU3B – FEBRUARY 2012 – REVISED MARCH 2012
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.
DESCRIPTION (CONTINUED)
Additionally, the regulated system input enables instant system turn-on when plugged in even with a totally
discharged battery. The power-path management architecture also permits the battery to supplement the system
current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller
adapter.
The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge
phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the
internal temperature threshold is exceeded. The charger power stage and charge current sense functions are
fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status
display, and charge termination. The input current limit and charge current are programmable using external
resistors.
PART NUMBER
(1) (2)
bq24075QRGTRQ1
VOVP
6.6 V
ORDERING INFORMATION
VBAT(REG)
4.2V
VOUT(REG)
5.5 V
VDPPM
4.3 V
OPTIONAL
FUNCTION
SYSOFF
MARKING
SAM
(1) The RGT 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.
(2) 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 the -40°C to 125°C operating free-air temperature range (unless otherwise noted)
VALUE
MIN MAX
IN (with respect to VSS)
–0.3 28
VI Input Voltage BAT (with respect to VSS)
OUT, EN1, EN2, CE, TS, ISET, PGOOD, CHG, ILIM,
TMR, SYSOFF
–0.3
–0.3
5
7
II
Input Current
IN
OUT
IO
Output Current
(Continuous)
BAT (Discharge mode)
BAT (Charging mode)
1.6
5
5
1.5 (2)
Output Sink Current CHG, PGOOD
Electrostatic Discharge (HBM) QSS 009-105 (JESD22-A114A)(3)
15
1.5
TJ
Tstg
ESD
Rating
Junction temperature
Storage temperature
Human Body Model (HBM) AEC-Q100 Classification Level H2
Charged Device Model (CDM) AEC-Q100 Classification Level C3B
–40 150
–65 150
2
750
UNIT
V
V
V
A
A
A
A
mA
kV
°C
°C
kV
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.
(2) The IC operational charging life is reduced to 20,000 hours, when charging at 1.5A and 125°C. The thermal regulation feature reduces
charge current if the IC’s junction temperature reaches 125°C; thus without a good thermal design the maximum programmed charge
current may not be reached.
(3) The human body model is a 100-pF capacitor discharged through a 1.5-kΩ resistor into each pin.
2 Copyright © 2012, Texas Instruments Incorporated


Features bq24075-Q1 www.ti.com SLUSAU3B – FEB RUARY 2012 – REVISED MARCH 2012 1.5A USB-FRIENDLY Li-Ion BATTERY CHARGER AN D POWER-PATH MANAGEMENT IC Check for Sa mples: bq24075-Q1 FEATURES 1 • Quali fied for Automotive Applications • AE C-Q100 Qualified with the following res ults – Device Temperature Grade 1: -4 0°C to +125°C Ambient Operating Tempe rature Range – Device HBM ESD Classif ication Level H2 – Device CDM ESD Cla ssification Level C3B • Fully Complia nt USB Charger – Selectable 100mA and 500mA Maximum Input Current – 100mA Maximum Current Limit Ensures Complianc e to USB-IF Standard – Input based Dy namic Power Management (VIN-DPM) for Pr otection Against Poor USB Sources • 2 8V Input Rating with Overvoltage Protec tion • Integrated Dynamic Power Path Management (DPPM) Function Simultaneous ly and Independently Powers the System and Charges the Battery • Supports up to 1.5A Charge Current with Current Mo nitoring Output (ISET) • Programmable Input Current Limit up to 1.5A for Wall Adapters • Batt.
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