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Document overview
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- PDF pages: 44
Technical content
Datasheet sections
- 1 Important Notice
- 2 Getting Started
- 3 Understanding the Freedom Platform
- 4 Getting to Know the Hardware
- 5 Installing the Software and Setting up the Hardware
- 6 Schematics
- 7 Board Layout
- 8 Board Bill of Materials
- 9 References
- 10 Revision History
Freescale Semiconductor, Inc. © Freescale Semiconductor, Inc., 2015. All rights reserved. Figure 1. FRDM-BC3770-EVM
KTFRDMBC3770UG Rev. 1.0 Freescale Semiconductor, Inc. 3
1 Important Notice
Freescale provides the enclosed product(s) under the following conditions: This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY . It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals. This evaluation board may be used with any development system or other source of I/O signals by simply connecting it to the host MCU or computer board via off-the-shelf cables. This evaluation board is not a Reference Design and is not intended to represent a fina l design recommendation for any particular application. Final device in an application will be heavily dependent on proper printed circuit boar d layout and heat sinking design as well as attention to supply filtering, transient suppression, and I/O signal quality. The goods provided may not be complete in terms of requ ired design, marketing, and or manufacturing related protective considerations, including product safety measur es typically found in the en d product incorporating the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with r egard to electrostatic dischar ge. In order to minimize risks associated with the customers applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. For any safety concerns, contact Freescale sales and technical support services. Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days from the date of delivery and will be replaced by a new kit. Freescale reserves the right to make changes without fu rther notice to any products herein. Freescale makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the applicat ion or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typical”, must be validated for each customer application by customer’s technical experts. Freescale does not convey any license under its patent rights nor the rights of others. Freescale products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale product could create a situation where personal injury or death may occur. Should the Buyer purchase or use Freescale products for any such unintended or unauth orized application, the Buyer shall indemnify and hold Freescale and its officers , employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges Freescale was negligent regarding the des ign or manufacture of t he part.Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2015
KTFRDMBC3770UG Rev. 1.0 4 Freescale Semiconductor, Inc.
2 Getting Started
2.1 Kit Contents/Packing List
2.1.1 FRDM-BC3770-EVM
If you ordered the FRDM-BC3770-EVM, your kit contents include:
- Assembled and tested evaluation board/module in anti-static bag.
- FRDM-KL25Z Freedom board with programming loaded
- Two USB Mini-B to Standard-A cables
- Quick Start Guide, Analog Tools
- Warranty card
2.1.2 FRDM-BC377-EVB
If you ordered the FRDM-BC3770-EVB, your kit contents include:
- Assembled and tested evaluation board/module in anti-static bag.
- Quick Start Guide, Analog Tools
- Warranty card
2.2 Jump Start
Freescale’s analog product development boards help to easily evaluate Freescale products. These tools support analog mixed signal and power solutions including monolithic ICs using proven high-volume SMARTMOS mixed signal technology, and system-in-package devices utilizing power, SMARTMOS and MCU dies. Freescale products enable longer battery life, smaller form factor, component count reduction, ease of design, lower system cost and improved performance in powering state of the art systems.
- G o t o www.freescale.com/analogtools
- Locate your kit
- Review your Tool Summary Page
- Look for
- Download documents, software and other information Once the files are downloaded, review the user guide in the bundle. The user guide includes setup instructions, BOM and schematics. Jump start bundles are available on each tool summary page with the most relevant and current information. The information includes everything needed for design.
2.3 Required Equipment and Software
To use this kit, you need:
- A Win 32 or higher PC
- A Lithion Ion (or Lithium Polymer) battery 3.7–4.2 V, Max Charge Current 2 A
- Two USB Mini-B (Male) to Standard-A (Male) cables (included in FRDM-BC3770-EVM kit)
- A FRDM-KL25Z board with programming loaded (included in FRDM-BC3770-EVM kit)
2.4 System Requirements
The kit requires the following to function properly with the software:
- Windows ® XP, Windows 7, or Vista in 32- and 64-bit versions, Windows 8 Jump Start Your Design
Understanding the Freedom Platform KTFRDMBC3770UG Rev. 1.0 Freescale Semiconductor, Inc. 5
3 Understanding the Freedom Platform
The Freescale Freedom development platform is a small, low-power, cost-effective evaluation and development system for quick application prototyping and demonstration of Kinetis MCU families. The assembled platform incudes the FRDM-BC3770-EVB expansion board mounted to the KL25Z board. Figure 2. Freedom Development Platform
3.1 FRDM-BC3770-EVB
of up to 2.0 A. The charging parameters and operating modes are fully programmable over an I2C Interface that operates up to 400 kHz.
Features
- The FRDM-BC3770-EVB is a highly integr ated synchronous switch-mode charger, featuring integrated OVP and Power FET.
- The charger and boost regulator circuits switch at 1.5 MHz to minimize the size of external passive components
- The BC3770 is able to operate as a boost regulator for USB-OTG function via either I2C command or an external pin from the host/processor
- . The BC3770 is available in a 25-bump, 2.27 mm x 2.17 mm, WLCSP package FRDM-KL25Z FRDM-BC3770-EVB
6 Freescale Semiconductor, Inc.
3.2 FRDM-KL25Z
by a range of Freescale and third-party development software. and an active community of developers.
3.2.1 Features
- MKL25Z128VLK4 MCU - 48 MHz, 128 KB flash, 16 KB SRAM, USB OTG (FS), 80LQFP
- Capacitive touch "slider," MMA8451Q accelerometer, tri-color LED
- Easy access to MCU I/O
- Sophisticated OpenSDA debug interface
- Mass storage device flash programming interface (default ) - no tool installation required to evaluate demo apps
- P&E Multilink interface provides run-contro l debugging and compatibility with IDE tools
- Open-source data logging application provides an exampl e for customer, partner and enthusiast development on the OpenSDA circuit
- mbed™ enabled To view an online video that provides an introduction to using the FRDM-KL25Z, go to the following URL: http://www.freescale.com/webapp/video_vault/videoSummary.sp?code=FRDMKL25ZINTRO_VID
3.3 Block Diagram
Figure 3. BC3770 Simplified Block Diagram
4 Getting to Know the Hardware
The Freedom platform consists of the FRDM-BC3770-EVB board mounted to a FRDM-KL25Z board.
4.1 FRDM-BC3770-EVB Board Overview
4.1.1 FRDM-BC3770-EVB Board Description
The FRDM-BC3770-EVB board consists of the MC32BC3770CS chip and its associated circuitry. Figure 4. FRDM-BC3770-EVB (Top View)
8 Freescale Semiconductor, Inc. Figure 5. FRDM-BC3770-EVB (Bottom View) Table 1. Board Description
4.1.2 LED Display
Figure 6. LED locations on the FRDM-BC3770-EVB evaluation board Table 2. LEDs charge current of 10 mA or greater occurs.
10 Freescale Semiconductor, Inc.
4.1.3 Connectors
Figure 7. Connector locations on the FRDM-BC3770-EVB evaluation board Table 3. Connectors J1 CON_2X8 2x8 Female Arduino connector. Supports addition of shield boards. J2 CON_2X10 2x10 Female Arduino connector. Supports addition of shield boards. nal used for battery detection. surement (NTC). Note: currently not supported in software. J9 CON_2X8 2x8 Female Arduino connector. Supports addition of shield boards. J10 CON_2X6 2x6 Female Arduino connector. Supports addition of shield boards.
4.1.4 Test Point Definitions
The follow figure and table define the evaluation board test points and their location. Figure 8. Test Point locations on the FRDM-BC3770-EVB evaluation board Table 4. Test Points
12 Freescale Semiconductor, Inc. Table 4. Test Points (continued)
4.1.5 Jumper Definitions
The following table defines the evaluation board jumper positions and explains their functions. Figure 9. Jumper locations on the FRDM-BC3770-EVB evaluation board Table 5. Jumpers
14 Freescale Semiconductor, Inc.
4.2 Accessory Interface Board
Figure 10. FRDM-KL25Z Freedom Development Platform
5 Installing the Software and Setting up the Hardware
5.1 Video Tutorials
block, click on the “How To Videos” link.
5.2 Installing the MC32BC3770 Graphical User Interface on your Computer
The latest version of the MC32BC3770 GUI is designed to run on any Windows 8, Windows 7, Vista, or XP-based operating system.
- G o t o www.freescale.com/analogtools and select your kit.
- Click on the link to open the corresponding Tool Summary Page.
- Look for “Jump Start Your Design”.
- Download the MC32BC3770_GUI(x.x.x.x) file to a directory on your computer. containing the extracted files.)
- Open the subdirectory containing the extracted files and run the setup.exe file. The Installation Wizard guides you through the rest of the process.
- When the installation completes, the MC32BC3770 Charger Panel GUI automatically opens on your computer. In addition, a BC3770_GUI icon appears on your desktop. For an in-depth tutorial on installing the MC32BC3770 GUI, see the video “01A - BC3770 GUI Install Video” in the FRDM-BC3770-EVB Product Summary page.
5.3 Starting the MC32BC3770 GUI
- From your desktop, click on the BC3770_GUI ic on. The Graphic User Interface (GUI) appears.
Table 6. Video Tutorials BC3770 battery charger graphical user interface (GUI) ... Everything you need to get started with the FRDM-BC3770-EVB ...
16 Freescale Semiconductor, Inc.
5.3.1 The MC32BC3770 GUI Startup Screen
related to the selected function appears immediately below the row of tabs. “01C - BC3770 GUI Launch Video” in the FRDM-BC3770-EVB Product Summary page. instructions on using the Main Log, see the video “02 - BC3770 GUI Main Log Video” in the FRDM-BC3770-EVB Product Summary page. 03 - BC3770 GUI I2C Communication Video” in the FRDM-BC3770-EVB Product Summary page. Figure 11. GUI Startup Screen
5.3.2 The Control Registers Screen
“04 - BC3770 GUI Control Registers Video” in the FRDM-BC3770-EVB Product Summary page. panel automatically updates on a periodic basis. FRDM-BC3770-EVB Product Summary page. in the FRDM-BC3770-EVB Product Summary page. FRDM-BC3770-EVB Product Summary page. Figure 12. Control Register Screen
18 Freescale Semiconductor, Inc.
5.3.3 Script Editor Screen
location in the Script Editor. The panel on the right shows a log of events that occur as the script executes. Buttons below this panel allow you clear or save the log. Figure 13. Script Editor Screen
5.3.4 Charge Plot Screen
clear and save the results of a battery charging session. Figure 14. Charge Plot Screen
20 Freescale Semiconductor, Inc.
5.3.5 The Discharge Plot Screen
you to start, stop, clear and save the results of a battery charging session. FRDM-BC3770-EVB Product Summary page. Figure 15. Discharge Plot Screen
5.4 Configuring the Hardware
Figure 16 shows the hardware setup using the FRDM-BC3770-EVB and the FRDM-KL25Z boards. the the FRDM-BC3770-EVB Product Summary page. Figure 16. FRDM-BC3770-EVM Hardware Configuration
Installing the Software and Setting up the Hardware KTFRDMBC3770UG Rev. 1.0 22 Freescale Semiconductor, Inc.
5.4.1 Step-by-step Instructions for Setting up the Hardware
To perform the demonstration examples, the following connections and setup must be performed: 1. Mount the FRDM-BC3770EVB board firmly to the Arduino connectors on the FRDM-KL25Z board. (If you purchased the FRDM-BC3770-EVM kit, the boards will already be mounted.) 2. Solder a wire lead to each pole of the Lithium Ion battery. 3. Attach the Lithium Ion leads to the two-pole terminal block (J8) on FRDM-BC3770EVB. The negative lead goes to the inboard connector. The positive lead goes to the outboard connector. 4. Connect the FRDM-BC3770-EVB board to a power supply. There are two methods of making this connection.
- Attach a USB mini-cable between the PC and the USB mini-plug connector on the FRDM-BC3770-EVB board. This draws power from the PC via the USB port. However, because of the USB power supply is relatively low, the battery charges more slowly.
- Cut the Standard-A plug off the USB cable. Identify and seperate out the USB power lines in the cable. Attached the USB power lines to a power source (either a power supply or a power adaptor.) Note that the source you connect to must supply 2 A current at 5 V. Attach the min-plug end of the cable to the USB port on the FRDM-BC3770-EVB board. 5. Attach a USB mini-cable between the PC and the USB communication port on the FRDM-KL25Z board. This cable serves as the communication link between the Freedom platform and the PC.
6 Schematics
6.1 Charger
Figure 17. BC3770 Charger
24 Freescale Semiconductor, Inc.
6.2 USB Connector
Figure 18. USB Connector
6.3 VBUS Current Sense Amplifier (CSA)
Figure 19. VBUS Current Sense Amplifier (CSA)
26 Freescale Semiconductor, Inc.
6.4 VSYS Current Sense Amplifier
Figure 20. VSYS Current Sense Amplifier SCL2
6.5 VBAT Current Sense Amplifier
Figure 21. VBAT Current Sense Amplifier
28 Freescale Semiconductor, Inc.
6.6 Electronic Load (ELOAD)
Figure 22. Electronic Load (ELOAD)
6.7 KL25Z Interface
Figure 23. KL25Z Interface
30 Freescale Semiconductor, Inc.
6.8 NTC Thermistor Interface
Figure 24. NTC Thermistor Interface
6.9 Board ID
Figure 25. Board ID
32 Freescale Semiconductor, Inc.
6.10 LED Indicators
Figure 26. LED Indicators
7 Board Layout
7.1 Silkscreen - FRDM-BC3770-EVB
Figure 27. Assembly Layer Top
34 Freescale Semiconductor, Inc. Figure 28. Assembly Layer Bottom
Figure 29. Top Layer Routing
36 Freescale Semiconductor, Inc. Figure 30. Inner Layer1 Routing
Figure 31. Inner Layer2 Routing
38 Freescale Semiconductor, Inc. Figure 32. Bottom Layer Routing
8 Board Bill of Materials
Table 7. Bill of Materials (1)
2.2 A 20% 2520 - SAMSUNG CIG22E1R0MNE
40 Freescale Semiconductor, Inc.
32 J6_1 CON 1X3 TB TH 150 MIL SP
33 J8_1 CON 1X2 TB TH 150 MIL SP
180 MIL TH - KEYSTONE ELEC-
Table 7. Bill of Materials (1) (continued)
- Freescale does not assume liability, endorse, or warrant component s from external manufacturers are referenced in circuit drawings
KTFRDMBC3770UG Rev. 1.0 42 Freescale Semiconductor, Inc.
9 References
Following are URLs where you can obtain information on related Freescale products and application solutions:
9.1 Support
Visit www.freescale.com/support for a list of phone numbers within your region.
9.2 Warranty
Visit www.freescale.com/warranty for a list of phone numbers within your region. Freescale.com Support Pages Description URL FRDM-BC3770-EVB Product Summary Page http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB MC32BC3770 Product Summary Page http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=BC3770 FRDM-KL25Z Product Summary Page http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-KL25Z Freescale.com Videos Description URL FRDMKL25ZINTRO_VID Freedom Introduction Video http://www.freescale.com/webapp/video_vault/videoSum- mary.sp?code=FRDMKL25ZINTRO_VID FRDM-BC3770-EVB Quick Startup Startup Instructions http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB USB Connection Panel Configuring USB Connec- tions http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB Direct 12C Communica- tion Panel Configuring Direct 12C Communications http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB Control Registers Panel Configuring Control Regis- ters http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB Script Editor Panel Editing and running scripts http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB Charge Plots Monitoring battery charg- ing http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB Discharge Plots Monitoring Discharge Plots http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB Load Sharing Describes the load shar- ing support via the GUI http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB Battery Supplement Describes battery supple- ment support via the GUI http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB OTG Boost Describes OTG Boost support via the GUI http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=FRDM-BC3770-EVB
Revision History
KTFRDMBC3770UG Rev. 1.0 Freescale Semiconductor, Inc. 43 Revision Date Description of Changes 1.0 03/2015 • Initial Release
Document Number: KTFRDMBC3770UG Rev. 1.0 Information in this document is provided solely to enable system and software implementers to use Freescale products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits based on the information in this document. Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no warranty, representation, or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in Freescale data sheets and/or specifications can and do vary in different applications, and actual performance may vary over time. All operating parameters, including “typicals,” must be validated for each customer application by customer’s technical experts. Freescale does not convey any license under its patent rights nor the rights of others. Freescale sells products pursuant to standard terms and conditions of sale, which can be found at the following address: freescale.com/SalesTermsandConditions. SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2015 Freescale Semiconductor, Inc. How to Reach Us: Home Page: freescale.com Web Support: freescale.com/support