RT1650WSC datasheet(6/26 Pages) RICHTEK

6 / 26 page

RT1650

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS1650-00

July

2015

Operation

MCU Based Digital Circuit

RT1650 is a SoC (System on Chip) produce, which

contains

system

level

feature

control

the

communication

with

power

transmitter,

power

calculation

and

GPIO.

The

firmware

can

programmed into OTP (One Time Programmable)

memory, so that user can discuss the features with

RICHTEK, and custom some functions and GPIO

behavior. To flexibly control whole functions, this chip

embedded a MTP (Multiple Time Programmable)

memory to save various setting and parameters. The

external

host

can

real-time

read

some

power

information via I2C interface.

OVP (Over Voltage Protection)

The OVP function using to protect the abnormal power

signal to let the RT1650 damaged. Once the VRECT

exceeds 11.5V, this block will drive the CLAMP MOS to

avoid the over voltage damage.

OTP (Over Temperature Protection)

The OTP function shuts down the linear regulator

operation when the junction temperature exceeds

150

C. Once the junction temperature cools down by

around 20

C, the receiver will automatically resume

operating.



Synchronous Rectifier Control

This block detect the zero-cross of the AC1 and AC2

voltage then control the high-side and low-side MOS of

the rectifier. RT1650 provide the Asynchronous,

Half-synchronous and Full-synchronous control to

optimize the rectifier efficiency.

Mode Control

Mode control is using for the default mode, wireless

mode, adapter mode and disable mode selection.

Adapter Detection

In the default mode and adapter mode, adapter

detection block control the ADEN pin to follow the

VADD-5V to avoid the PMOS damaged.

FSK Decoder

This block analysis the frequency from the AC1 and

AC2. This information can use for the FSK (Frequency

Shift Key) decode to the WPC medium power standard.

This information also can use for the power loss

calculation of the resonant tank.

Packet Control

This block build up the WPC standard 2kHz bi-phase

encoding scheme with the asynchronous serial format

and the packet structure. This block control the

open-drain MOS to achieve the ASK (Amplitude Shift

Key) communication.

RT1650WSC Datasheet(PDF) 6 Page - Richtek Technology Corporation

RT1650WSC Datasheet(HTML) 6 Page - Richtek Technology Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Datasheet Download

Link URL