Texas Instruments BQ51050BEVM-764 Evaluation Module BQ51050BEVM-764 BQ51050BEVM-764 数据表
产品代码
BQ51050BEVM-764
TX
COIL
TI
Wireless
Power
Transmitter
HOST
C
4
C
3
R
4
D
1
NTC
PACK+
PACK-
bq5105xB
BATT
TERM
AD
/AD-EN
/CHG
EN2
C
1
C
2
C
BOOT1
C
BOOT2
AC1
AC2
COMM2
CLAMP2
C
COMM2
C
CLAMP2
RX
COIL
BOOT1
RECT
TS
BOOT2
CLAMP1
C
CLAMP1
C
COMM1
COMM1
Bi-State
R
5
Tri-State
C
5
Wired
Charger
PGND
ILIM
R
FOD
FOD
R
1
R
OS
Q1
USB or
AC Adapter
Input
SLUSB42D – JULY 2012 – REVISED JANUARY 2014
High-Efficiency Qi v1.1-Compliant Wireless Power Receiver and Battery Charger
Check for Samples:
1
FEATURES
•
Compatible with WPC v1.1 “Qi” Industry
Standard
Standard
•
Single-Stage Wireless Power Receiver
•
Power Stage Output Tracks Rectifier and
and Li-Ion/Li-Pol Battery Charger
Battery Voltage to Ensure Maximum Efficiency
–
Combines Wireless Power Receiver,
Across the Full Charge Cycle
Rectifier and Battery Charger in a Single
•
Available in small WCSP and QFN packages
Small Package
–
4.2V and 4.35V Output Voltage Options
APPLICATIONS
–
Supports up to 1.5A Charging Current
•
Battery Packs
–
93% Peak AC-DC Charging Efficiency
•
Cell Phones, Smart Phones
•
Robust Architecture
•
Headsets
–
20V Maximum Input Voltage Tolerance,
•
Portable Media Players
with Input OV Protection Clamp
•
Other Hand-Held Devices
–
Thermal Shutdown and Over Current
Protection
Protection
–
Temperature Monitoring and Fault
Detection
Detection
DESCRIPTION
The bq5105x is a high efficiency, wireless power receiver with Li-Ion/Li-Pol battery charge controller for portable
applications. The bq5105x device provides efficient AC/DC power conversion, integrates digital controller
required to comply with Qi v1.1 communication protocol and all necessary control algorithms needed for efficient
and safe Li-Ion and Li-Pol battery charger. Together with bq500210 transmitter-side controller, the bq5105x
enables a complete wireless power transfer system for direct battery charger solution. By utilizing near-field
inductive power transfer, the receiver coil embedded in the portable device can pick up the power transmitted by
transmitter coil. The AC signal from the receiver coil is then rectified and conditioned to apply power directly to
the battery. Global feedback is established from the receiver to the transmitter in order to stabilize the power
transfer process. This feedback is established by utilizing the Qi v1.1 communication protocol.
applications. The bq5105x device provides efficient AC/DC power conversion, integrates digital controller
required to comply with Qi v1.1 communication protocol and all necessary control algorithms needed for efficient
and safe Li-Ion and Li-Pol battery charger. Together with bq500210 transmitter-side controller, the bq5105x
enables a complete wireless power transfer system for direct battery charger solution. By utilizing near-field
inductive power transfer, the receiver coil embedded in the portable device can pick up the power transmitted by
transmitter coil. The AC signal from the receiver coil is then rectified and conditioned to apply power directly to
the battery. Global feedback is established from the receiver to the transmitter in order to stabilize the power
transfer process. This feedback is established by utilizing the Qi v1.1 communication protocol.
The bq5105x devices integrate a low-impedance synchronous rectifier, low-dropout regulator, digital control,
charger controller, and accurate voltage and current loops in a single package. The entire power stage (rectifier
and LDO) utilize low resistive N-MOSFET’s (100m
charger controller, and accurate voltage and current loops in a single package. The entire power stage (rectifier
and LDO) utilize low resistive N-MOSFET’s (100m
Ω typical Rdson) to ensures high efficiency and low power
dissipation.
Figure 1. Typical System Blocks Show bq5105xB Used as a Wireless Power Li-Ion/Li-Pol Battery Charger
Note: Visit
for product details and design resources
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012–2014, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.