BQ24196_17 Datasheet, PDF (1/50 Pages) Texas Instruments – I2C Controlled 2.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG

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bq24196
SLUSB98A – OCTOBER 2012 – REVISED DECEMBER 2014
bq24196 I²C Controlled 2.5-A Single Cell USB/Adapter Charger
with Narrow VDC Power Path Management and USB OTG
1 Features
• High Efficiency 2.5-A Switch Mode Charger
– 92% Charge Efficiency at 2 A
• Highest Battery Discharge Efficiency with 12-mΩ
Battery Discharge MOSFET up to 9-A Discharge
Current
• Single Input USB-compliant/Adapter Charger
– Input Voltage and Current Limit Supports
USB2.0 and USB3.0
– Input Current Limit: 100 mA, 150 mA, 500 mA,
900 mA, 1.2 A, 1.5 A, 2 A and 3 A
• 3.9-V to 17-V Input Operating Voltage Range
– Support All Kinds of Adapter with Input Voltage
DPM Regulation
• USB OTG 5 V at 1.3-A Synchronous Boost
Converter Operation
– 93% 5-V Boost Efficiency at 1 A
• Narrow VDC (NVDC) Power Path Management
– Instant-on Works with No Battery or Deeply
Discharged Battery
– Ideal Diode Operation in Battery Supplement
Mode
• 1.5-MHz Switching Frequency for Low Profile
Inductor
• Autonomous Battery Charging with or without
Host Management
– Battery Charge Enable
– Battery Charge Preconditioning
– Charge Termination and Recharge
• High Accuracy (0°C to 125°C)
– ±0.5% Charge Voltage Regulation
– ±7% Charge Current Regulation
– ±7.5% Input Current Regulation
– ±2% Output Regulation in Boost Mode
• High Integration
– Power Path Management
– Synchronous Switching MOSFETs
– Integrated Current Sensing
– Bootstrap Diode
– Internal Loop Compensation
1
• Safety
– Battery Temperature Sensing and Charging
Safety Timer
– Thermal Regulation and Thermal Shutdown
– Input System Over-Voltage Protection
– MOSFET Over-Current Protection
• Charge Status Outputs for LED or Host Processor
• Low Battery Leakage Current and Support
Shipping Mode
• 4.00 mm x 4.00 mm VQFN-24 Package
2 Applications
• Tablet PC and Smart Phone
• Portable Audio Speaker
• Portable Media Players
• Internet Devices
3 Description
The bq24196 is highly-integrated switch-mode battery
charge management and system power path
management devices for single cell Li-Ion and Li-
polymer battery in a wide range of tablet and other
portable devices.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
bq24196
VQFN (24)
4.00 mm x 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
bq24196 with PSEL from PHY, charging from
SDP/DCP, and Two Thermistor Connections
5V USB
SDP/DCP
1μF
6.8μF
SYS
bq24196
VBUS
SW
PMID
BTST
REGN
PGND
1μH
47nF
1μF
SYS: 3.5V-4.45V
10μF 10μF 10μF 10μF
VREF
10kW
Host
PHY
10kW
2.2kW
SYS
PG
STAT
BAT
10kW
SDA
ILIM
SCL
INT
OTG
CE
TS1
TS2
PSEL
Power Pad
353W 10μF
(1.5A max)
REGN
5.52kW
31.23kW
10kW
(103-AT)
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.