P9030-EVK IDT, P9030-EVK Datasheet - Page 18

• Manufacturer Part Number: P9030-EVK
• Description: Power Management IC Development Tools
• Manufacturer: IDT
• Type: PMIC Solutionsr

Specifications of P9030-EVK

• Product: Evaluation Kits
• Tool Is For Evaluation Of: P9030
• Input Voltage: 10 V to 20 V
• Output Voltage: 5 V
• Output Current: 1.5 A
• Part # Aliases: IDTP9030-EVK
• For Use With: P9030-0NTGI

IDTP9030
Product Datasheet
In this phase, the IDTP9030 operates in a low power
mode to determine if a potential receiver has been placed
on the coil surface prior to the PING state. Twice a second,
the IDTP9030 applies a brief ac signal to its coil and
listens for a response.
PING PHASE
In this phase, the IDTP9030 applies a power signal at 175
kHz with a fixed 50% duty cycle and attempts to establish
a communication link with a mobile device.
Required packet(s) in PING:
The mobile device must send a Signal Strength Packet
within a time period specified by the WPC, otherwise the
power signal is terminated and the process repeats.
The mobile device calculates the Signal Strength Packet
value, which is an unsigned integer value between 0-255,
based on this formula:
where U is a monitored variable (i.e. rectified
voltage/current/power) and U
that monitored variable expected during the digital ping
phase at 175 kHz.
If the IDTP9030 does not detect the start bit of the header
byte of the Signal Strength Packet during the Ping Phase,
it removes the power signal after a delay. If a signal
strength packet is received, the IDTP9030 goes to the
Identification and Configuration Phase. If the IDTP9030
does not move to the Identification and Configuration
Phase after receiving the signal strength packet, or if a
packet other than a signal strength packet is received,
then power is terminated.
IDENTIFICATION AND CONFIGURATION (ID & Config)
In this phase, the IDTP9030 tries to identify the mobile
device and collects configuration information.
Required packet(s) in ID & Config:
*
Revision 1.0
If Ext bit of 0x71 packet is set to 1.
1. Signal strength packet (0x01)
1. Identification packet (0x71)
2. Extended Identification packet (0x81)
3. Configuration packet (0x51)
max
is a maximum value of
*
18
Also, the IDTP9030 must correctly receive the following
sequence of packets without changing the operating point
(175 kHz @ 50% duty cycle):
If the IDTP9030 does not detect the start bit of the header
byte of the next Packet in the sequence within a WPC-
specified time after receiving the stop bit of the checksum
byte of the preceding Signal Strength Packet, then the
Power Signal is removed within after a delay. If a correct
control packet in the above sequence is received late, or if
control packets that are not in the sequence are received,
the IDTP9030 removes the Power Signal after a delay.
POWER TRANSFER PHASE
In this phase, the IDTP9030 adapts the power transfer to
the receiver based on control data it receives in control
error packets.
Required packet(s) in Power Transfer:
For this purpose, the IDTP9030 may receive zero or more
of the following Packets:
If the IDTP9030 does not correctly receive the first Control
Error Packet in time, it removes the Power Signal after a
delay. Because Control Error Packets come at a regular
interval, the IDTP9030 expects a new Control Error
Packet after receiving the stop bit of the checksum byte of
the preceding Control Error Packet. If that does not
1. Identification Packet (0x71)
2. Extented Identification (0x81)
3. Up to 7 optional configuration Packets
4. Configuration Packet (0x51)
1. Control Error Packet (0x03)
2. Rectified Power Packet (0x04)
1. Control Error Packet (0x03)
2. Rectified Power Packet (0x04)
3. Charge Status Packet (0x05)
4. End Power Transfer Packet (0x02)
5. Any Proprietary Packet
6. Any reserved Packets
from the following set:
a. Power Control Hold-Off Packet
b. Proprietary Packet (0x18 –
c. Reserved Packet
© 2012 Integrated Device Technology, Inc.
(0x06)
0xF2)