1FEATURES
2• Small 3-mm × 3-mm MLP (QFN) Package
• Ideal for Low-Dropout Designs for Single-Cell
Li-Ion or Li-Pol Packs in Space Limited
Applications
• Integrated Power FET and Current Sensor for
Up to 1-A Charge Applications
• Reverse Leakage Protection Prevents Battery
Drainage
• Integrated Current and Voltage Regulation
• ±0.5% Voltage Regulation Accuracy
• Charge Termination by Minimum Current and
Time
• Pre-Charge Conditioning With Safety Timer
• Status Outputs for LED or System Interface
Indicates Charge and Fault Conditions
• Battery Insertion and Removal Detection
• Works With Regulated and Unregulated
Supplies
• Short-Circuit Protection
• Charge Voltage Options: 4.2 V and 4.36 V

APPLICATIONS
• Cellular Phones
• PDAs
• MP3 Players
• Digital Cameras
• Internet Appliances

DESCRIPTION
The bqTINY™ series are highly integrated Li-Ion and
Li-Pol linear charge management devices targeted at space limited portable applications. The bqTINY™
series offer integrated powerFET and current sensor,
reverse blocking protection, high accuracy current
and voltage regulation, charge status, and charge
termination, in a small package.
The bqTINY™ charges 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 bqTINY™ automatically
restarts the charge if the battery voltage falls below
an internal threshold. The bqTINY™ automatically
enters sleep mode when VCC supply is removed.
In addition to the standard features, different versions
of the bqTINY™ offer a multitude of additional features. These include temperature sensing input for
detecting hot or cold battery packs; power good (PG)
output indicating the presence of valid input power; a
TTL-level charge-enable input (CE) used to disable or
enable the charge process; and a TTL-level timer and termination enable (TTE) input used to disable or
enable the fast-charge timer and charge termination.