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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.
| 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 | |
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