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See Technical Specifications

BQ50002ARHBT

Low-Cost 5-V Wireless Power Transmitter AFE WPC V 1.2 A11 Transmitter

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

BQ50002ARHBT
Datasheet:

BQ50002ARHBT Datasheet (PDF)
Applications:

Wireless Power Transmitter
Voltage - Supply:

4.5V ~ 5.5V
Operating Temperature:

-40°C ~ 125°C
Mounting Type:

Surface Mount
EDA/CAD Models:

Request Free CAD Models for BQ50002ARHBT

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BQ50002ARHBT General Description

The bq50002A device is a highly integrated wireless power transmitter analog front end (AFE) that contains all of the analog components required to implement a Wireless Power Consortium (WPC) compliant 5-V transmitter. The bq50002A device integrates a full-bridge power driver with MOSFETs, variable-frequency oscillator, two-channel communication demodulator, linear regulator, and protection circuits. The bq50002A device must be used together with the digital controller bq500511A to realize a compact two chip wireless power transmitter solution. The bq500511A safely engages the RX device, receives packet communication from the powered device, and manages the power transfer according to WPC v1.2 specification.

The system supports foreign object detection (FOD) by continuously monitoring the amount of power transferred and comparing that to the amount of received power, as reported by the receiver. This protects against power loss to metal objects misplaced in the wireless power transfer field. To do this, the bq50002A measures the input DC current accurately by using a current sense amplifier. Should any abnormal condition develop during power transfer, the bq500511A handles it and provides indication outputs. Comprehensive status and fault monitoring features enable a low cost yet robust WPC-certified wireless power system design.

The bq50002A is available in a thermally enhanced 5.00 mm × 5.00 mm, 32-pin QFN package.

Key Features

5-V Transmitter AFE Compatible With Wireless Power Consortium (WPC) v1.2 A11 Low-Power Transmitter Specification
Designed to be Used With bq500511A WPC Controller
- Note: The bq50002A is Incompatible With the bq500511 Device if Foreign Object Detection is Required
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 (<30 mW)
Dynamic Power Limiting (DPL)™ Enables Operation From Input Sources With Limited Power
System LED Indication of Charging State and Fault Status
Accurate Foreign Object Detection Method (FOD)

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Power Management - Specialized	Series	-
Applications	Wireless Power Transmitter	Current - Supply	-
Voltage - Supply	4.5V ~ 5.5V	Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount	Base Product Number	BQ50002
Rating	Catalog	Operating temperature range (°C)	-40 to 125
feature-mode-of-operation	Single Mode	feature-function	Transmitter
feature-controller		feature-output-voltage-v	3
feature-maximum-output-current-a		feature-maximum-output-power-w	5
feature-minimum-input-voltage-v	4.5	feature-maximum-input-voltage-v	5.5
feature-wireless-power-standard	Qi v1.2	feature-packaging	Tape and Reel
feature-pin-count	32	feature-cecc-qualified	No
feature-esd-protection		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No