Datasheet Wireless Power Consortium / Qi Compliant series Wireless Power Transmitter IC BD57021MWV General Description Key Specifications BD57021MWV is an integrated IC for the wireless power Input Voltage Range: 4.2 V to 5.3 V transmitter. This device is composed of inverters for the Drive Frequency Range: 110kHz to 205kHz coil drive, controller for the communication of the Qi Operating Temperature Range: -20C to +85C compliant and demodulating circuit, GPIO, TCXO buffer, and I2C interface. BD57021MWV works as a controller in the wireless Package W(Typ) x D(Typ) x H(Max) power transmitter based on the Qi compliant by using it UQFN040V5050 5.00mm x 5.00mm x 1.00mm with a general-purpose microcomputer. BD57021MWV is applied to Qi ver.1.2 BPP (Baseline Power Profile). Features WPC / Qi ver.1.2 BPP (Baseline 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 BD57011GWL 5V Power BD57021MWV MOSFET NN Rectification Load LDO Driver Full Bridge Mod DC/DC MCU Data 1 OVPIN SW1 30 Voltage 3.3V 2 LDO33B HSIDE1 29 & Demodulator Voltage 3.3V Current 3 LDO33A & Qi packet LSIDE1 28 Sensing Controller Current 4 VDD PGND 27 Sensing 5 TCXOEN LSIDE2 26 BD57021MWV Transmitter(TX) 6 TCXOIN Receiver(RX) HSIDE2 25 7 TCXOOUT SW2 24 Figure 2. Product position in wireless 8 GPIO0 BOOT2 23 power supply system 9 GPIO1 22 TEST 10 COIL IN GPIO2 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 TSZ02201-0F2F0AK00120-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/37 TSZ22111 14 001 6.Feb.2017 Rev.006 40 11 GPIO3 REFGND 12 ADPV 39 VDDIO 38 13 CLKIN ADPI 14 37 CLKSET MONI1 36 15 FSKIN MONI0 16 VIN 35 SCL 34 17 SDA VIN 18 OVPOUT 33 INTB 32 19 RESETB ADDR AGND BOOT1 31 20BD57021MWV Absolute Maximum Ratings Parameter Symbol Rating Unit VIN, ADPV, ADPI, SW1, SW2 voltage VIN H1 -0.3 to 7.0 V BOOT1, BOOT2 voltage VIN H2 -0.3 to 15.5 V HSIDE1, HSIDE2 voltage VOUT H -0.3 to 15.5 V OVPIN, VDDIO, SCL, CLKIN, CLKSET, VIN L1 -0.3 to 7.0 V FSKIN, ADDR, TEST, RESETB voltage VDD, TCXOIN voltage VIN L2 -0.3 to 4.5 V COIL IN voltage VIN L3 -4.5 to 7.0 V LSIDE1, LSIDE2, LDO33A, LDO33B, VOUT L1 -0.3 to 7.0 V OVPOUT, INTB, 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 4.2 5.0 5.3 V TCXO terminal input frequency range FTCXO 32 - 45 MHz www.rohm.com TSZ02201-0F2F0AK00120-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/37 TSZ22111 15 001 6.Feb.2017 Rev.006