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Texas Instruments BQ25898 | Demoboard TIDA-03042
Tiny I2C-Controlled Single-Cell Charger Reference Design for Wearable Applications
Overview
| Topology | Other Topology |
| IC revision | E1 |
Description
The TIDA-03042 TI Design is a single-cell charger reference design for wearable applications which have a very limited design space. TIDA-03042 works with a host controller through I2C control, supports 5-V, 9-V, or 12-V input adaptors and can charge up to 1.5 A. The actual charger design only requires a space of 1.7 cm², allowing for high charging efficiency while minimizing the total count of components and board size.
Features
- Up to 1.5A single-cell charger
- Charge efficiency of 92% at 0.5A and 1.5A
- Low-power PFM mode for light load operations
- High-input voltage operation range from 3.9V to 14V
Typical applications
- Augmented reality glasses, Headsets/headphones & earbuds, Smart trackers, Smartwatch, Virtual reality headset, weigh scale
- Automotive test, Dashboard camera, GPS personal navigation device
- Spectrometer
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT1(A) | ISAT2(A) | RDC max.(mΩ) | fres(MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PMCI Power Molded Chip Inductor, 1 µH, 3.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PMCI Power Molded Chip Inductor | Inductance1 µH | Rated Current3.3 A | Saturation Current 11.55 A | Saturation Current 23.45 A | DC Resistance75 mΩ | Self Resonant Frequency120 MHz |