| Number of series cells | 1 |
| Charge current (Max) (A) | 1.1 |
| Operating Vin (Max) (V) | 9 |
| Cell chemistry | Li-Ion/Li-Polymer |
| Battery charge voltage (Min) (V) | 3.3 |
| Battery charge voltage (Max) (V) | 3.3 |
| Absolute Vin (safety rating) (Max) ((V)) | 30 |
| Control interface | Standalone (RC-Settable) |
| Features | IC thermal regulation, Integrated LDO |
| Operating Vin (Min) (V) | 3.3 |
| Rating | Catalog |
- 30V Input Rating, with 15V Over-Voltage Protection
(OVP) Threshold - Integrated Charge Current Sense for Wireless Power Transfer
Efficiency Monitoring - 3.3V, 15mA integrated Low Dropout Linear Regulator (VDD3.3)
Supplies Power to MSP430BQ1010 Directly - 2% Output Voltage Regulation
- Pin Selectable 100mA and 400mA Current Limit Enables Robust Communication
in Wireless Power Systems at any Output Current Level - Soft-Start Feature to Reduce Inrush Current
- Status Indication – Power Good (PG) and Output Enabled (CHG)
- Available in Small 2mm × 3mm DFN-10 Package
- APPLICATIONS
- Wireless Power Applications
- Smart Phones
- PDAs
- MP3 Players
- Low-Power Handheld Devices
The bq25046 is a highly integrated linear power supply IC targeted at both wired and wireless power applications. With an accurate 5-V regulated output and integrated 3.3-V LDO, the bq25046 is an ideal solution for wireless power supply solutions up to 5 W.
The bq25046 integrates several functions which enable a wireless charging solution within a small area and low component count. These include a 3.3-V LDO which drives an MSP430BQ1010 wireless controller, high-accuracy current sense for calculating receiver-side power usage, 100mA/400mA current limits enable robust communication at all load current levels, and integrated pass FET acts as load disconnect switch and 5-V regulator to protect downstream circuitry. In addition, the bq25046 has an absolute maximum input voltage of 30 V and an OVP threshold of 15 V, which enables safe and robust operation in inductive power transfer systems that use either resistive or capacitive load modulation.