BQ501210 Datasheet, PDF (1/8 Pages) Texas Instruments – Wireless Power Transmitter Manager

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BQ501210
SLUSCF5 – FEBRUARY 2016
BQ501210 WPC 1.2 Wireless Power Transmitter Manager with 15-W Power Delivery
1 Features
•1 Qi-Certified WPC v1.2 Solution for 15-W
Operation
– Faster Charging Time
– Compatible With Standard 5-W WPC v1.1
Receivers, and TI bq501210 Proprietary 10 W
Charging Capability
• 19-V Input, Fixed Frequency, Rail Voltage Control
Architecture
• Operation From HVDCP Adapter to Provide > 5 W
• Conforms to Wireless Power Consortium (WPC)
MPAx (TBD) Transmitter Type Specification
• Enhanced Foreign Objection Detection (FOD)
Implementation With FOD Ping that Detects Metal
Objects Prior to Power Transfer
• Low Standby Power During Idle and 'Charge
Complete'
• 10 Configurable LED Modes Indicate Charging
State and Fault Status
• Digital Demodulation Reduces Components and
Simplifies Circuitry
• Support Fast Charge Operation with Compatible
Receivers
• Dynamic Power Limiting (DPL) Allows Operation
From Weak Supplies Across a Wide (5 V – 19 V)
Input Range
• Proprietary Bi-directional Communication
2 Applications
• WPC v1.2 Wireless Chargers:
– Qi-Certified Smart Phones, Tablets, and Other
Handhelds
– Point-of-Sale Devices
– Custom Wireless Power Applications
• See www.ti.com/wirelesspower for More
Information on TI's Wireless Charging Solutions
Simplified Diagram
19V
Supply
HVDCP
Adapter
1
Vin
3.3V DCDC
Bq501210
Wireless Power
Controller
Variable Vout
DCDC
Vrail
Full-Bridge
Power
Stage
TX
Coil
Assembly
3 Description
The bq501210 is a dedicated wireless power digital
controller that integrates the logic functions required
to control wireless power transfer to a single WPC-
compliant receiver. The bq5501210 complies with the
WPC v1.2 standard for power delivery up to 15 W.
The bq501210 is an intelligent device that periodically
pings the surrounding environment for available
devices to be powered, detects if a foreign metal
object is present on the charging pad, monitors all
communication from the device being wirelessly
powered, and adjusts power applied to the transmitter
coil per feedback received from the powered device.
The bq501210 also manages the fault conditions
associated with the power transfer and controls the
operating mode status indicator. The bq501210 uses
a rail voltage control scheme instead of the traditional
frequency control to adjust the amount of power
delivered to the receiver.
Through negotiation with an HVDCP adapater, the
bq501210 provides power between the WPC low
power capability of 5 W, but less than the medimum
power specifications of 15 W
Fast Charge support provides more power for
compatible receiver devices.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
bq501210
VQFN (64)
9.00 mm × 9.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Efficiency vs System Output Power With
bq501210 Receiver
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
VOUT = 10V
VOUT = 7V
VOUT = 5V
0
0 1 2 3 4 5 6 7 8 9 10
Output Power (W)
D001
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCT PREVIEW Information. Product in design phase of
development. Subject to change or discontinuance without notice.