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PDF TC7763WBG Data sheet ( Hoja de datos )
| Número de pieza | TC7763WBG | |
| Descripción | Qi Compliant Wireless Power Receiver Controller IC | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TC7763WBG
TOSHIBA CDMOS Integrated Silicon Monolithic Circuit
TC7763WBG
Qi Compliant Wireless Power Receiver Controller IC
1. Outline
The TC7763WBG is wireless power receiver (RX) IC compliant
to the Qi low power v1.1 standard of the Wireless Power
Consortium (WPC). The TC7763WBG 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 to detect and select an external power supply. A digital
control circuit realizes little heat generation and guarantees
voltage stabilization during 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
S-XFLGA28-0304-0.50-001
bypass the wireless power function when a USB or AC power source is connected to the mobile device.
2. Applications
Mobile communication devices (Smartphone, Featurephone, tablet), battery pack, mobile accessory etc.
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.
© 2014 TOSHIBA Corporation
1
2015-2-25
1 page  
TC7763WBG
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 2015-2-25
5 Page 
TC7763WBG
8.4 Control state machine
The state machine of the TC7763WBG consists of SHUTDOWN mode, DISABLE mode, STARTUP mode,
OUTPUT mode, and OVP mode. The wireless power system starts operation when a Qi compliant transmitters TX
coil and the TC7763WBGs RX coil are adjoined. A wired power supply detected by the SW_EN input will transfers
the system to the DISABLE mode.
The state transition diagram of the wireless feeding control of the TC7763WBG is shown in the Figure 8.4. The
operation state of each circuit in each mode is shown in the table 8.1.
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
Current
Over Current
OCL
MODE
Figure 8.4 State transition diagram of TC7763WBG wireless power supply control
11 2015-2-25
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet TC7763WBG.PDF ] | |
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