Datasheet Wireless Power Consortium / Qi Compliant series Wireless Power Transmitter IC BD57020MWV General Description Key Specifications BD57020MWV is an integrated IC for the wireless power Input Power Supply Voltage Range: 4.2 V to 5.3 V transmitter. This device is composed of inverters for the Input Adapter Voltage Range: 4.6 V to 20 V coil drive, controller for the communication of the Qi Drive Frequency Range: 110kHz to 205kHz compliant and demodulating circuit, GPIO, TCXO buffer, Operating Temperature Range: -20C to +85C and I2C interface. BD57020MWV works as a controller in the wireless power transmitter based on the Qi compliant by using it Package W(Typ) x D(Typ) x H(Max) with a general-purpose microcomputer. UQFN040V5050 5.00mm x 5.00mm x 1.00mm BD57020MWV is applied to Qi ver.1.2 BPP / EPP (Baseline Power Profile / Extended Power Profile). Features WPC / Qi ver.1.2 BPP / EPP (Baseline Power Profile / Extended Power Profile) support. Half Bridge / Full Bridge inverter Foreign object detection GPIO 4CH I2C bus interface 5.0mm x 5.0mm UQFN package 40 pin Applications WPC compliant devices PC Cradle for charge stand Typical Application Circuit 3.3V CS + - ADPIN 19V BD57015GWL Power BD57020MWV MOSFET NN Rectification Load LDO Driver Mod Full Bridge 1 MCU OVPIN SW1 30 Data 3.3V 2 LDO33B HSIDE1 29 Voltage 3.3V 3 LDO33A LSIDE1 & 28 Demodulator Voltage Current 4 VDD & PGND 27 Qi packet Sensing Current Controller 5 TCXOEN LSIDE2 26 BD57020MWV Sensing 6 TCXOIN 25 HSIDE2 7 TCXOOUT SW2 24 Transmitter(TX) Receiver(RX) 8 GPIO0 BOOT2 23 9 GPIO1 Figure 2. Product position in wireless 22 TEST COIL IN 10 GPIO2 power supply system 21 ADPIN I2C IF MONI1 ADC ML610Q772 CS Figure 1. Typical application circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0F2F0AK00130-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/38 TSZ22111 14 001 6.Feb.2017 Rev.004 11 40 REFGND GPIO3 39 12 VDDIO ADPV 38 13 CLKIN ADPI 37 14 CLKSET MONI1 36 15 FSKIN MONI0 16 VIN 35 SCL 34 17 SDA VIN OVPOUT 33 18 INTB 32 19 RESETB ADDR AGND BOOT1 31 20BD57020MWV Absolute Maximum Ratings Parameter Symbol Rating Unit VIN, ADPV, ADPI, SW1, SW2 voltage VIN H1 -0.3 to 24.0 V BOOT1, BOOT2 voltage VIN H2 -0.3 to 31.0 V HSIDE1, HSIDE2 voltage VOUT H -0.3 to 31.0 V OVPIN, VDDIO, CLKIN, CLKSET, FSKIN, VIN L1 -0.3 to 7.0 V SCL, RESETB, TEST, ADDR voltage VDD, TCXOIN voltage VIN L2 -0.3 to 4.5 V COIL IN voltage VIN L3 -4.5 to 7.0 V LDO33A, LDO33B , INTB, LSIDE1, LSIDE2, VOUT L1 -0.3 to 7.0 V OVPOUT, MONI0, MONI1 voltage TCXOEN, TCXOOUT voltage VOUT L2 -0.3 to 4.5 V SDA voltage VINOUT L1 -0.3 to7.0 V GPIO0, GPIO1, GPIO2, GPIO3 voltage VINOUT L2 -0.3 to 4.5 V Note 1 Power dissipation Pd 3.26 ( ) W Operating ambient temperature range Ta -20 to +85 C Storage temperature range Tstg -55 to +150 C (Note 1) Derate by 26 mW/C when operating above Ta=25C (Mount on 4-layer 74.2mm x 74.2mm x 1.6mm board with front and back layer heat radiation copper foil 4.5 mm x 4.5 mm, second and third layer heat radiation copper foil 74.2 mm x 74.2 mm). Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Recommended Operating Conditions (Ta= -20C to +85C) Parameter Symbol Min Typ Max Unit VIN terminal input voltage range VIN 4.2 5.0 5.3 V VDD terminal input voltage range VDD 3.1 3.3 3.5 V VDDIO terminal voltage range VDDIO 3.1 3.3 3.5 V Adapter input voltage range VADPV 4.6 - 20 V TCXO terminal input frequency range FTCXO 32 - 52 MHz www.rohm.com TSZ02201-0F2F0AK00130-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/38 TSZ22111 15 001 6.Feb.2017 Rev.004