BATT-14AAAPACK

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Document overview

• Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 16

Technical content

Datasheet sections

• 1 Important Notice
• 2 Getting Started
• 3 Understanding the Battery Pack
• 4 Getting to Know the Hardware
• 5 Configuring the Hardware
• 6 Schematic
• 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. BATT-14AAAPACK

BATT-14AAAPACKUG 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 de sign or manufacture of the 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

BATT-14AAAPACKUG Rev. 1.0 4 Freescale Semiconductor, Inc.

2 Getting Started

2.1 Kit Contents/Packing List

The BATT-14AAAPACK contents include:

• Assembled and tested battery pack board with housing
• 34-pin ribbon cable
• 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/BATT-14AAAPACK
• 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. Jump Start Your Design

3 Understanding the Battery Pack

3.1 BATT-14AAAPACK Overview

designing additional hardware to connect with a series of batteries. sense resistor, configuration jumpers, and a 1.3mm jack for charging.

3.2 Battery Pack Features

• 14 AAA battery holders
• 34-pin header compatible with KIT3377 1TPLEVB, KIT33771SPIEVB, and KIT33772ASP1EVB
• 1.3mm jack serial charging jack (to be used only with proper serial charger and rechargeable batteries)
• 2mm banana connectors
• 0 . 1 Ω resistor for current measurement
• Current measurement configuration jumper
• MC33771/MC33772 configuration jumper
• Protection fuse

3.3 Block Diagram

Figure 2. BATT-14AAAPACK Block Diagram

14 AAA

6 Freescale Semiconductor, Inc.

4 Getting to Know the Hardware

Figure 3 and Figure 4 illustrate components of the BATT-14AAAPACK. Figure 3. Top View Figure 4. Side View

4.1 AAA Battery Holders

the voltage cells that connect to the MC3377x cell terminals in a real application.

• AAA 1.2 V NiMh batteries
• AAA 1.5 V Alkaline batteries
• 10440 3.7 V Lithium-ion batter ies (flat top is preferred) The bottom silkscreen of the PCB indicates the cell number for each battery holder. A configuration jumper J4 allows you to route CT6 either to the next battery holder (MC33771 configuration), or to VBAT (MC33772 configuration). Place a jumper connection on J4 for the pack to be functional. 4.2 34-pin Cells Connector The fourteen cells connect to the EVB through 34-pin header [X1-1...X1-34]:

Table 1. 34-pin Connector Pinout

Getting to Know the Hardware BATT-14AAAPACKUG Rev. 1.0 8 Freescale Semiconductor, Inc.

4.3 Current Sense Resistor

A 0.1 Ω current sense resistor (R1) on the main board senses current based on the voltage differential between the MC3377x’s ISENSE+ and ISENSE- pins. A configuration jumper (J7) allows you to select between two options:

• J7-1 and J7-2: senses the current of the LOAD connected between the black and red banana sockets.
• J7-2 and J7-3: senses the current of the MC3377x + the LOAD connected between the black and red banana sockets. This allows you to measure the MC3377x alone if no load is present. If a current sense is already present on the EVB, disconnect the battery pack sense resistor, either by unsoldering R1, or unsoldering R2 and R3.

4.4 Protection Fuse

An on-board 2.0 A fast-acting fuse protects the battery stack from overcurrent damage. To find replacement fuses on distributor websites, search for TE5 250V radial fuses. 4.5 2mm Banana Connectors MC33771 and MC33772 devices are designed to monitor a full system including a battery pack and its load. Optionally, you can connect the load to the battery pack using the red (VBAT) and black (GND) 2mm banana connectors. 4.6 1.3mm Serial Charging Jack The BATT-14AAAPACK includes 1.3mm jack on the front of the pack to support external charging of the battery stack. However, the battery pack contains no internal charging circuitry. The pack also contains no overcurrent protection other than the F1 fuse. Therefore, be sure to select the proper smart charger when serial charging the batteries. The following websites provide examples of proper serial chargers:

• NiMH Chemistry www.mascot.no/admin/common/getimg.asp?FileID=1203 www.mascot.no/admin/common/getimg.asp?FileID=1212
• Li-Ion Chemistry fypoweradapter.manufacturer.globalsources.com/si/6008825690079/pdtl/Standard-battery/1119867844/58V-Battery-Charg er.htm Caution: Do not attempt to charge the battery pack with a charger that is not adapted to the batteries' chemistry or to the battery cell voltage.

5 Configuring the Hardware

5.1 Basic Configurations

The BATT-14AAAPACK is configured by default for an MC33771 and LOAD current sense. To use the battery pack with the MC33772, position the jumper J4 between pins 1 and 2. This routes CT6 directly to VBAT. To measure the MC3377x + LOAD current through the 0.1 ohm sense resistor, position the jumper J7 between pins 2 and 3. place. Otherwise the battery stack is an open circuit. Figure 5. BATT-14AAAPACK Configurations Figure 6. BATT-14AAAPACK Connection to KIT33771TPLEVB

10 Freescale Semiconductor, Inc.

5.2 Cell Configuration

Figure 7. Cell Location Numbers Figure 8. Twelve-cell Configuration Example Table 2. Cell Connections for all Configurations

6 Schematic

Figure 9. Battery Pack Board Schematic Place 1-2 to measure load current only. Place 2-3 to measure BCC + load current.

12 Freescale Semiconductor, Inc.

7 Board Layout

7.1 Top Assembly Layer and Top Routing

Figure 10. Top Layer Assembly Layer and Top Routing

7.2 Bottom Layer Assembl y and Bottom Routing

Figure 11. Bottom Layer Assembly and Bottom Routing

8 Board Bill of Materials

Table 3. Bill of Materials(1)

31 R 7 1 K Ω RES MF 1K OHM 3 W 1% 2512 35221K0FT

46 BT12, BT34, BT56, BT78,

71 J 1 CON 2X17 PLUG SHRD RA TH 100MIL

81 J 2 CON 1 BANANA DIN41649 RED SKT

91 J 3 CON 1 BANANA DIN41649 BLACK

1. Freescale does not assume liability, endorse, or warrant component s from external manufacturers are referenced in circuit drawings or tables.

While Freescale offers component recommendations in this configuration, it is the customer’s responsibility to validate their application.

BATT-14AAAPACKUG Rev. 1.0 14 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 to submit a request for tool warranty. Freescale.com Support Pages Description URL BATT-14AAAPACK Tool Summary Page www.freescale.com/BATT-14AAAPACK MC33771 Product Summary Page www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MC33771 MC33772 Product Summary Page www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MC33772 KIT33771ASP1EVB Tool Summary Page www.freescale.com/products/analog-power-management/battery-management/battery-cell-contr ollers/evaluation-board-mc33771-14-channel-li-ion-battery-cell-controller-ic:KIT33771ASP1EVB

Revision History

BATT-14AAAPACKUG Rev. 1.0 Freescale Semiconductor, Inc. 15 Revision Date Description of Changes 1.0 10/2015 • Initial Release

Document Number: BATT-14AAAPACKUG 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 trademarks 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