BQ500414Q Datasheet, PDF (19/34 Pages) Texas Instruments – Qi Compliant Wireless Power Transmitter Manager

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bq500414Q
SLUSBE4B – JANUARY 2014 – REVISED JUNE 2014
9 Applications and Implementation
9.1 Application Information
The bq500414Q device is a wireless power transmitter controller designed for automotive applications. It
integrates all functions required to control wireless power transfer to a WPC v1.1 compliant receiver. There are
several tools available for the design of the system. See the product folder on www.ti.com for more details. The
following sections highlight some of the system design considerations.
9.2 Typical Application
The application block diagram for the transmitter is shown in Figure 9.
6-16V
Input
TPS54040-Q1
Buck 3.3V
ENABLE SEPIC
DETECT
PROXIMITY
SENSOR
TPS40210-Q1
SEPIC 12V
I_SENSE
INA213-Q1
Current Shunt
Monitor
BC847CL
Simple 5V Linear
TPS28225-Q1
& DMG4800LSDQ
FETs
Tank/Coil
Assembly
I²C
bq500414Q
PWM
TPS28225-Q1
& DMG4800LSDQ
FETs
Tank/Coil
Assembly
TPS28225-Q1
& DMG4800LSDQ
FETs
Tank/Coil
Assembly
FEEDBACK & SELECT
3x
SN74VLC1G3157-
Q1
Analog Mux
Figure 9. bq500414Q System Diagram
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