Features: · 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
· Precharge 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 ProtectionApplication· Cellular Phones
· PDAs, MP3 Players
· Digital Cameras
· Internet AppliancesSpecifications
|
UNIT |
Supply voltage range, (VCC all with respect to VSS) |
|
−0.3 to 18 |
V |
Input voltage range(2) |
IN, STAT1, STAT2, TS, PG, CE, TTE |
−0.3 to VCC |
BAT, OUT, ISET |
−0.3 to 7 |
VDC |
Voltage difference between VCC and IN inputs VCC − VIN |
|
± 0.5 |
V |
Output sink/source current |
STAT1, STAT2, PG |
15 |
mA |
Output current |
IN, OUT |
1.5 |
A |
Operating free−air temperature range, TA |
|
−40 to 125 |
|
Junction temperature range, TJ |
|
Storage temperature, Tstg |
|
−65 to 150 |
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds |
|
300 |
(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.
(2) All voltages are DC and with respect to VSS.DescriptionThe 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 of BQ24013DRC_1104415 is terminated based on minimum current. An internal charge timer provides a backup safety feature for charge termination. The bqTINY automatically re-starts the charge if the battery voltage falls below an internal threshold. The bqTINY automatically enters sleep mode when V
CC supply is removed.
In addition to the standard features of BQ24013DRC_1104415, 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 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.