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PDF TC7761WBG Data sheet ( Hoja de datos )

Número de pieza TC7761WBG
Descripción Qi Compliant Wireless Power Receiver Controller IC
Fabricantes Toshiba 
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No Preview Available ! TC7761WBG Hoja de datos, Descripción, Manual

TC7761WBG
TOSHIBA CDMOS Integrated Circuit Silicon Monolithic
TC7761WBG
Qi Compliant Wireless Power Receiver Controller IC
1. Outline
The TC7761WBG is wireless power receiver (Rx) IC for Qi low
power v1.1 compliant of Wireless Power Consortium (WPC). The
TC7761WBG includes a rectifier circuit, a digital control circuit, a
modulation circuit, a regulator circuit which controls the supply
voltage to the load, and a load switch controller for supply selector.
A digital control circuit realizes heat reduction and improvement
of stabilization for load changes. The IC includes all Rx functions
needed to construct a standalone wireless power system. The
integrated loadswitch driver for external loadswitch allows to
bypass the wireless power function when a USB or AC power
source is connected to the mobile device.
S-XFLGA28-0304-0.50-001
2. Applications
Mobile devices (Smartphone, tablet), Battery pack, Mobile accessory
3. Features
Full bridge rectifier circuit
Auto switch for 3 modes
: Synchronous rectification / Diode rectification / Diode bridge
Low ON resistance
: Hi Side 45mΩ(Typ.) / Low side 30mΩ(Typ.)
Under Voltage Lockout (UVLO) / Over Voltage Detection (OVP) function
5V-output LDO
Maximum output current
: 1.0A
2 step Over Current Detection (OCL) function
Qi Low Power v1.1 compliant
Foreign Object Detection (FOD) function
External load switch driver for supply selector
Current drive type startup function
Under voltage lockout (UVLO) / Over voltage detection (OVLO) function
Thermal shutdown function (TSD)
Package
: S-XFLGA28-0304-0.50-001 (2.40mm*3.67mm*0.5mm, 0.5mm pitch)
This product has a MOS structure and is sensitive to electrostatic discharge. When handling this product, ensure that
the environment is protected against electrostatic discharge by using an earth strap, a conductive mat and an ionizer.
Ensure also that the ambient temperature and relative humidity are maintained at reasonable levels.
1 2013-11-08
Free Datasheet http://www.datasheet4u.com/

1 page




TC7761WBG pdf
TC7761WBG
7. Equivalent circuits for input/output/power supply terminals
7.1 Power supply terminal
Table 7.1 Equivalent circuits for power supply terminals
Note: Equivalent circuits may be simplified to illustrate circuits.
Pin name
Equivalent circuit
PVDD-PGND
PVDD
PGND
7.2 Input/output terminal
Table 7.2 Equivalent circuits for Input/output terminals
Note: Equivalent circuits may be simplified to illustrate circuits.
Pin name
Equivalent circuit
SDA
SDA
Internal circuit
Internal circuit
PGND
5 2013-11-08
Free Datasheet http://www.datasheet4u.com/

5 Page





TC7761WBG arduino
TC7761WBG
8.4 Control state Machine of wireless power
The state machine of wireless power with the TC7761WBG consists of SHUTDUWN mode, DISABLE mode,
STARTUP mode OUTPUT mode and OVP mode. Wireless power system starts operation when Tx coil and Rx coil
are adjoined without wired connection. The state transition diagram of the wireless feeding control of the
TC7761WBG is shown in the Figure 8.4. The operation state of each circuit in each mode is shown in the .
DISABLE
MODE
SW_UVLO
detection
SW_UVLO release
SHUTDOWN
MODE
UVLO release
UVLO
detection
or EPT
UVLO
detection
LDO disable
or UVLO
deteciont
or EPT
STARTUP
MODE
Regular frequency
FREQ_DET detection
PING
PHASE
PHASE
Transmitting complete
CONFIG&ID
PHASE
Timeout
VRECT_SETUP
Transmitting
PHASE
complete
VRECT is stabilized
STANDBY
PHASE
LDO enable
OVP
MODE
OVP
detection
OVP
detection
OUTPUT
MODE
LDO
MODE
Normal load
Over load
OCL
MODE
Figure 8.4 State transition diagram of TC7761WBG wireless power supply control
11
2013-11-08
Free Datasheet http://www.datasheet4u.com/

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