TEL: 18617042732 ***: 3073924495
The bq51003 is an advanced, integrated, receiver IC for wireless power transfer in portable applicati***. The device provides the AC/DC power conversion while integrating the digital control required to comply with the Qi v1.1 communication protocol. Together with the bq500210 tran***itter controller, the bq51003 enables a complete contact-less power transfer system for a wireless power supply solution. By using near-field inductive power transfer, the receiver coil embedded in the portable device receives the power tran***itted by the tran***itter coil via mutually coupled inductors. The AC signal from the receiver coil is then rectified and regulated to be used as a power supply for down-system electronics. Global feedback is established from the secondary to the tran***itter in order to stabilize the power transfer process via back-scatter modulation. This feedback is established by using the Qi v1.1 communication protocol supporting up to 2.5-W applicati***.
The device integrates a low-impedance full synchronous rectifier, low-dropout regulator, digital control, and accurate voltage and current loops.
特性
· Integrated Wireless Power Supply Receiver Solution -
Optimized for 2.5-W Applicati***
o 93% Overall Peak AC-DC Efficiency
o Full Synchronous Rectifier
o WPC v1.1 Compliant Communication Control
o Output Voltage Conditioning
o Only IC Required Between Rx coil and Output
· Wireless Power C***ortium (WPC) v1.1 Compliant
(FOD Enabled) Highly Accurate Current Sense
· Dynamic Rectifier Control for Improved Load Transient
Resp***e
· Dynamic Efficiency Scaling for Optimized Performance Over wide Range of Output Power
· Adaptive Communication Limit for Robust Communication
· Supports 20-V Maximum Input
· Low-power Dissipative Rectifier Overvoltage Clamp
(VRECT-OVP = 15 V)
· Thermal Shutdown
· Multifunction NTC and Control Pin for Temperature
Monitoring, Charge Complete and Fault Host Control
· 1.9-mm × 3.0-mm DSBGA
封装: DSBGA (YFP)