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bq50002
SLUSBW1A – OCTOBER 2015 – REVISED OCTOBER 2015
bq50002 Low-Cost 5-V Wireless Power Transmitter Analog Front End
for WPC V 1.2 A11 Transmitters
1 Features
3 Description
•
The bq50002 is a highly integrated wireless power
transmitter analog front end that contains all of the
analog components required to implement a WPC
compliant 5-V transmitter. bq50002 integrates a fullbridge power driver with MOSFETs, variablefrequency oscillator, two-channel communication
demodulator, linear regulator, and protection circuits.
bq50002 must be used together with the digital
controller bq500511 to realize a compact two chip
wireless power transmitter solution. The bq500511
safely engages the RX device, receives packet
communication from the powered device and
manages the power transfer according to WPC v1.2
specification.
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5-V Transmitter AFE Compatible with Wireless
Power Consortium (WPC) V1.2 A11 Low Power
Transmitter Specification
Designed to be used with bq500511 WPC
Controller
Suitable for WPC and Proprietary 5-V Wireless
Power Transmitters
Supports 5 W on the receiver output
Integrates all the Analog Functions Required in a
Wireless Power Transmitter
– MOSFET Drivers and Synchronous N-Channel
Power FETs
– Accurate Current Sense
– Variable Frequency Oscillator
– High-Efficiency Voltage Regulator
– High-Sensitivity Demodulator to Decode
Signals from Receiver
2-Chip Solution Enables High-Efficiency
Transmitter Designs of >75% Efficiency
Ultra-Low-Standby Power, Even During Digital
Ping (
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