BP3622

Wireless Charger Module 13.56 MHz Wireless Charger Module BP3622 General Description Package BP3622 is a compact wireless charger module with integrated antenna board. Features - Wireless power receiver W (Typ.) × D (Typ.) × H (Typ.) - Optimized for wireless charging with BP3621 24.0 mm × 17.0 mm × 1.5 mm - 212 kbps wireless communication Major Performance Parameter Description Power supply Max 200 mW (d = 10.0 mm) Antenna size 16.0 mm × 16.0 mm Board FR-4, t = 0.4 mm Parts are mounted on one side Host interface 0.5 mm pitch / 8 pin FPC connector Weight 0.38 g Block Diagram BP3622 Matching Circuit Wireless Antenna coil Flexible Charger Cable LSI Connector Diode Bridge ISO_V RFDET P12 SDA_S SCL_S BAT INT_S GND Figure 1. Block Diagram © 2019 ROHM Co.,Ltd. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･14･001 P. 0 1/18 TSZ02201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 1. Absolute Maximum Ratings No. Parameter Symbol Rating Unit Condition 1 Input Voltage VDD -0.3 to +6.5 V Ta=25 ºC 2 Input Voltage (Digital IO *1) VDIN -0.3 to VDD + 0.3 V Ta=25 ºC 3 Input Current (Digital IO *1) Ii -10 to +10 mA Ta=25 ºC 4 Output Voltage (Digital IO *1) VDO -0.3 to VDD + 0.3 V Ta=25 ºC 5 Operating temperature range Topr -10 to +50 ºC Humidity: 35 % to 85 %RH No dew condensation Humidity: 6 Storage temperature range Tstg -20 to +50 ºC 35 % to 85 %RH No dew condensation (*1) Digital IO: P12, RFDET, INT_S, SCL_S, SDA_S (Note) The absolute maximum ratings represent values that shall not be exceeded for even an instant on all operating or testing conditions. Design systems with a margin for the ratings listed above. (Note) This module can be operated only in combination with BP3621. Operation with other systems is not guaranteed. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 2/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 2. Recommended Operating Conditions No. Parameter Symbol Topr Specification Unit Min. Typ. Max. -10 25 50 ºC Condition 1 Operating temperature range 2 Distance between Antennas Dant - 10.0 - mm *1 3 Load resistance Rload 100 - 200 Ω *2 (*1) The power feeding antenna and the power receiving antenna should face each other horizontally. See Figure 5 and Figure 6 for reference. (*2) See Figure 2 and Figure 3 for reference. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 3/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 3. Electrical Characteristics DC Function (Ta=25 ºC) No. 1 2 Parameter Output Voltage (INT_S, SDA_S, RFDET) Input Voltage (SCL_S, SDA_S, P12) Symbol VOH Specification Min. VDD 0.5 VOL VIH1 VIL1 0.7 ×VDD 0 Unit Typ. Max. - - V - 0.4 V - VDD V - 0.3 × Condition V VDD (*1) P12 settled “Pull Up Input, Detect High signal”. “Pull Up” is done in this module. “Pull Up” voltage depends on the power supplied from BP3621. (1.8 V to 5.5 V) “Pull Up” resistance value is typ. 100 kΩ. Power Supply Characteristics (Ta=25 ºC) No. Parameter Symbol Specification Min. Typ. Max. Unit 1 Output Power *1 WBAT - 200 - mW 2 Output Voltage *1*2 VBAT 4.5 - 5.5 V Condition (*1) During power supply from BP3621. (*2) Set the load resistance value so that the output voltage does not fall below 4.5 V. (Note) The characteristics of this module are ensured when using a BP3621 with a matching capacitor (optimized matching constant) as the power feeding system. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 4/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 4. Typical Performance Curves Lower limit under each condition Upper limit 240 Output Power [mW] 220 200 180 160 140 BP3621 VDD=5.5V BP3621 VDD=5.0V 120 BP3621 VDD=4.5V 100 80 100 120 140 160 180 200 220 Load resistance [Ω] Figure 2. Output Power vs Load resistance Lower limit under each condition Upper limit 5.2 Output Voltage [V] 5.1 5.0 4.9 4.8 4.7 BP3621 VDD=5.5V BP3621 VDD=5.0V 4.6 BP3621 VDD=4.5V 4.5 80 100 120 140 160 180 200 220 Load resistance [Ω] Figure 3. Output Voltage vs Load resistance www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 5/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 45 40 Surface temperature of IC [ºC] 35 30 25 20 15 10 BP3621 VDD=5.5V BP3621 VDD=5.0V 5 BP3621 VDD=4.5V 0 0 50 100 150 200 Elapsed time [s] Figure 4. Surface temperature of IC vs Elapsed time www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 6/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 Antenna center BP3621 BP3622 Available feeding range = 7mm @Load resistance = 120 Ω Available feeding range = 10mm @Load resistance = 200 Ω Figure 5. Available feeding range (Top view) 4mm © 2019 ROHM Co.,Ltd. P. 0 BP3622 Antenna center Available feeding area @Load resistance = 200 Ω BP3621 4mm 10mm Figure 6. Available feeding area (Side view) © 2019 ROHM Co.,Ltd. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 P. 0 7/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 5. I2C AC Function (Standard mode: 100 kHz, Ta=25 ºC) No. 1 2 Parameter SCL_S clock frequency SCL_S hold time (start/repeated start condition) Symbol Specification Unit Min. Typ. Max. fSCL - - 100 kHz tHD:STA 4.0 - - µs 3 SCL_S “L” level time tLOW 4.7 - - µs 4 SCL_S “H” level time tHIGH 4.0 - - µs tSU:STA 4.7 - - µs 5 SCL_S setup time (repeated start condition) 6 SDA_S hold time tHD:DAT 0 - - µs 7 SDA_S setup time tSU:DAT 0.25 - - µs tSU:STO 4.0 - - µs tBUF 4.7 - - µs 8 9 SDA_S setup time (P: Stop condition) Bus free time Condition (Fast mode: 400 kHz, Ta=25 ºC) No. 1 2 Parameter SCL_S clock frequency SCL_S hold time (start/repeated start condition) Symbol Specification Unit Min. Typ. Max. fSCL - - 400 kHz tHD:STA 0.6 - - µs 3 SCL_S “L” level time tLOW 1.3 - - µs 4 SCL_S “H” level time tHIGH 0.6 - - µs tSU:STA 0.6 - - µs 5 SCL_S setup time (repeated start condition) 6 SDA_S hold time tHD:DAT 0 - - µs 7 SDA_S setup time tSU:DAT 0.1 - - µs tSU:STO 0.6 - - µs tBUF 1.3 - - µs 8 9 SDA_S setup time (P: Stop condition) Bus free time www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 8/18 Condition TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 6. Operation Flow When BP3621 detects BP3622, it starts pre-charge operation and charge operation. Check if a TAG is BP3622 BP3621 BP3622 Figure 7. Operation Flow BP3621/BP3622 has three functions for controlling the power supply. 1．Communication function (Communication) BP3621 checks the response from BP3622 to determine whether the power is supplied. Then, BP3621 receives the state of BP3622 and checks the power supply change request and full charge status. 2．Power Supply Function (Power Transfer) BP3621 transfers power to BP3622. 3．Notification function (Notify) BP3622 requests to communicate with BP3621 to notify a power supply change request or abnormal condition detection during power supply. P. 0 © 2019 ROHM Co.,Ltd. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 9/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 7. Physical Dimension The antenna pattern is drawn on the back of the component mounting side. Direction to face BP3621 Antenna Center Flexible Cable Connector Unit: mm Figure 8. Physical Dimension (Note) Dimensions without tolerances are for reference only. (Note) When the product is shipped, the actuator of the connector is open. The height dimension is when the actuator is closed. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 10/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 8. Precautions for Installation 1. This module has an antenna on the side opposite to the component mounting side. 2. Use the power feeding side antenna facing the antenna side of this module. 3. Align the center of the antenna of this module with the center of the power feeding antenna. 4. Attach double-sided tape to the antenna side and attach it to any position. (Double-sided tape is not included with this product.) 5. Do not block the magnetic flux between the antennas. 6. This module is equipped with Hirose FH34SRJ-8S-0.5SH(50) as a flexible cable connector. (Flexible cable is not included with this product.) www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 11/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 9. Pin Descriptions 1 8 Flexible cable insertion direction Figure 9. Pin Number (flexible cable connector) Pin No. 1 Pin Name ISO_V I/O - Function Logic IO voltage Connections for unused pins Open RF signal detection output 2 RFDET O - Hi-Z: No Active - Low: Active after Power on and finish the Open initial setting 3 P12 *1 I 4 SDA_S I/O 5 SCL_S 6 BAT Charger IC status input - Pull Up Input, Detect High signal GND I2C serial data access Open I I2C clock Open O Power output - Interrupt information output 7 INT_S O - High: No Active Open - Low: Active when an interrupt occurs 8 GND - Ground - (*1) When “Low” voltage is input to the P12 pin, power is output from the BAT pin. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 12/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 10. PCB Marking Specification Unit: mm Figure 10. PCB Marking Specification Marking 137*▲▲▲▼: Production Lot Number (8 digits) ↓ (Example) 137 → Year 2021, Week 37, *▲▲▲▼ (internal serial number) www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 13/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 11. Reference Circuit Figure 11. Reference Circuit Diagram www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 14/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 12. Packing Specification 12.1 Packing Method 25 pieces of products are packaged in the packaging tray, and it is piled up 12 steps to make 300 pieces with an empty tray on the top, and it is packed into the packaging case. The number of piling might change according to the quantity of delivery without previous notice. Packaging tray Fixed by adhesive cellophane tape. Packaging trays are rotated 180 degrees and stacked alternately. BP3622: 25 pieces Fixed by adhesive cellophane tape. Packaging case Figure 12. Packing Method P. 0 © 2019 ROHM Co.,Ltd. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 15/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 12.2 Label Indication The label with following things is stuck at the packing case. 1 Type name (BP3622) 2 Quantity 3 Lot No. 4 Shipment inspection stamp 5 Country of origin 6 Manufacturing company name (Trade mark) 7 Logotype of lead free Please refer to the following example of the label indication. (a) For products of ROHM APOLLO (b) For products of ROHM INTEGRATED SYSTEMS (THAILAND) Figure 13. Label Indication www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 16/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 13. Product Weight 0.38 g (Typ.) 14. Manufacturing Country JAPAN THAILAND 15. Notice ● Precaution on using this Product 1) This Product may be subjected to radio wave interference from other equipment emitting radio waves. 2) This Product emits radio waves due to the specification. To use equipment emitting radio waves, certification under the Radio Act should be obtained by region in which the Product is used. For the standards for certification under the Radio Act to be obtained for the use of this Product, separately contact your ROHM representative. www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 17/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Datasheet BP3622 16. Revision History Rev. Date 001 15.Sep.2021 Contents New Issue www.rohm.com © 2021 ROHM Co., Ltd. All rights reserved. TSZ22111･15･001 18/18 TSZ2201-BP3622-1-2 15.Sep.2021 – Rev.001 Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipment (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (Exclude cases where no-clean type fluxes is used. However, recommend sufficiently about the residue.) ; or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse, is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in the range that does not exceed the maximum junction temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-PGA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl 2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label A two-dimensional barcode printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign trade act, please consult with ROHM in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the Products with other articles such as components, circuits, systems or external equipment (including software). 3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the Products, subject to the terms and conditions herein. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice-PGA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Datasheet General Precaution 1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents. ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s representative. 3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. Notice – WE © 2015 ROHM Co., Ltd. All rights reserved. Rev.001