P9027LP-R Datasheet

© 2016 Integrated Device Technology, Inc

10

April 28, 2016

Pin Description

Table 5. Pin Description

Pins

Name

Typical

Description

PGND

A1, A2, A3, A4,

A5, B3

GND

Power ground.

LX2

B1, B2

I

Connect the Rx coil to this pin.

LX1

B4, B5

I

Connect the other side of Rx coil to this pin.

RECT

C1, C2, C3, C4,

C5

O

Output voltage of the synchronous rectifier bridge. Connect at least two 10 µF capacitors

from this pin to PGND. The rectifier voltage dynamically changes as the load changes.

See typical curves.

CFLY2

D1

O

Positive and negative terminals of the internal charge pump. Connect a 47 nF capacitor

between these two pins.

CFLY1

D2

O

OUT

D3, D4, D5

O

Regulated output voltage pin. Connect at least two 10 µF capacitors from this pin to

PGND. The default voltage is set to 5V when VSET is directly shorted to GND. For more

information see VSET application section.

NC

E1, E2, E4, F2

NC

Do not connect.

RSVD

E3

I

This pin is reserved for internal use. Connect a 1.69 KΩ resistor from this pin to GND for 1

W coil. For 2 W and 3 W’s coils, use a 1.13 KΩ resistor.

OUTSNS

E5

I

Feedback input pin. This pin must be connected directly to OUT pin to provide a regulated

voltage.

IOC

F1

I

Programmable over-current limit pin. Connect a resistor from this pin to GND to set the

current-limit threshold. To disable the current-limit, connect the pin directly to GND. For

more information see current limit application section.

EOC

F3

I

Active high end of charge input pin. When connected to logic high, the device sends end of

power transfer packet (charge complete) to the transmitter to terminate power transfer and

shuts down. The OUT pin is high impedance after P9027LP-R is shutdown

VSET

F4

I

Programming pin to set the output voltage. Connect a resistor from the pin to GND to set

the output voltage. Shorting the pin to GND sets the output voltage to 5 V. For more

information refer to the application section VSET for different output voltage settings.

VHDR

F5

I

Programming pin to set the rectifier voltage. Connect a resistor from the pin to ground.

Refer to the application section for appropriate resistor selection.

VDD

G1

O

Charge pumps regulated 5 V supply to power the internal circuitry. Connect a 1 µF

capacitor as close as possible from this pin to GND. Do not load the pin.

EN

G2

I

Active low enable pin. Pulling this pin to logic high forces the device into shutdown mode.

When connected to logic low, the device is enabled. Do not leave the pin floating.

AGND

G3, H1

GND

Analog ground.

TS2

G4

Remote temperature sensor 2. If not used, connect to AGND.