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CPS4019

Application

Mobile accessories

TWS case wireless charging

Other WPC compliant receivers

The CPS4019 is a highly efficient, Qi-compliant, single-chip wireless power receiver IC. It supports up to 5W applications in the receiver (Rx) mode. The device receives AC power from a wireless power transmitter (Tx) and converts it into a rectified output voltage. As a wireless power Rx, it integrates a synchronous rectifier and a low drop-out regulator to provide power to system load or battery. Modulation and control circuits are used for bi-directional in-band communication to the Tx.

Key Spec. & Features
Key Spec.
Part Number CPS4019
RX MODE Output power (W) 5
AC/VRECT AMR (V) 20
Vout max (V) 9
Iout max (A) 1.1
Current sensing Internal
External VCC 5V supported
TX Mode Max power (W) N/A
Tx current sense N/A
SR Rdson (mΩ) 80
Dummy load (mA) 5~150 / 5
Clamp FETs N/A
MainLDO Rdson (mΩ) 80
Vout step (mV) 20
Digital Core 8051
Memory 16k MTP/ 2k SRAM
Package Size 2.1mm* 2.5mm
Pin WLCSP-30
Features

Support up to 5W in receiver mode (WPC 1.3 BPP and Proprietary)

Embedded 8051 core and on-chip 16kB MTP and 2kB SRAM

Full synchronous rectifier with low RDS_ON

Ultra-low dropout linear (LDO) regulator with programmable output voltage with 20mV step

Ping detector feature for heat dissipation management

Two general purpose I/O pins

I2C interface for system configuration and customization

Comprehensive protections

12-bit ADC for comprehensive input and output power monitoring

Rectifier over-voltage protection (OVP)

Main LDO over current protection (OCP)

Over temperature protection (OTP)

Available in WLCSP-30 package RoHS, Halogen-Free and Lead-Free Compliant