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.
| Number of series cells | 1 |
| Charge current (max) (A) | 1 |
| Vin (max) (V) | 16.5 |
| Cell chemistry | Li-Ion/Li-Polymer |
| Battery charge voltage (min) (V) | 4.2 |
| Battery charge voltage (max) (V) | 4.2 |
| Absolute max Vin (max) (V) | 18 |
| Control topology | Linear |
| Control interface | Standalone (RC-Settable) |
| Features | BAT temp thermistor monitoring (hot/cold profile) |
| Vin (min) (V) | 3 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| VSON (DRC) | 10 | 9 mm² 3 x 3 |