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CSR 充电配置文件

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BlueCore - Monday, November 25, 2013 ® CSR8ht6tp:0//w0wwR.btsOpeaMker.cComharger Configuration Application Note Issue 1 Prepared for © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 1 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note Document History Revision 1 Date 06 MAR 12 History Original publication of this document Contacts 13 General information 0 Information on this product , 2 Customer support for this product 25 More detail on compliance and standards er Help with this document www.csr.com sales@csr.com www.csrsupport.com product.compliance@csr.com comments@csr.com Trademarks, Patents and Licences day, Novemb Unless otherwise stated, words and logos marked with ™ or ® are trademarks registered or owned by CSR plc n and/or its affiliates. - Mo Bluetooth® and the Bluetooth logos are trademarks owned by Bluetooth SIG, Inc. and licensed to CSR. Other products, services and names used in this document may have been trademarked by their respective om owners. er.c The publication of this information does not imply that any licence is granted under any patent or other rights ak owned by CSR plc or its affiliates. tspe CSR reserves the right to make technical changes to its products as part of its development programme. w.b While every care has been taken to ensure the accuracy of the contents of this document, CSR cannot accept Life Support Policyhttap:n//wdwUse in Safety-critical Compliance responsibility for any errors. r CSR’s products are not authorised for use in life-support or safety-critical applications. Use in such applications is fo done at the sole discretion of the customer. CSR will not warrant the use of its devices in such applications. PerformaPnrecpeareadnd Conformance Refer to www.csrsupport.com for compliance and conformance to standards information. © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 2 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note Contents Document History.................................................................................................................................................... 2 Contacts .................................................................................................................................................................. 2 Trademarks, Patents and Licences......................................................................................................................... 2 Life Support Policy and Use in Safety-critical Compliance...................................................................................... 2 Performance and Conformance .............................................................................................................................. 2 Contents.................................................................................................................................................................. 3 Tables, Figures and Equations................................................................................................................................ 3 13 1. Introduction................................................................................................................................................... 4 20 2. Thermistor Configuration .............................................................................................................................. 5 5, 2.1. Configuration with Thermistor ................................................................................................................... 5 r 2 2.2. Configuration without Thermistor .............................................................................................................. 6 be 3. Vref Configuration ........................................................................................................................................ 7 em 4. Charger Configuration .................................................................................................................................. 8 ov 5. Charger Settings .......................................................................................................................................... 9 y, N 5.1. Charge Configuration Selection ................................................................................................................ 9 da 5.2. Charge Configuration Settings ................................................................................................................ 11 on 6. Vbat Configuration...................................................................................................................................... 12 - M 7. USB Charger Configuration........................................................................................................................ 14 8. Configuration resolution with USB Charging Enabled ................................................................................ 16 om 8.1. Charge Enable/Disabled ......................................................................................................................... 16 r.c 8.2. Boost Charge Enable/Disabled ............................................................................................................... 16 ake 8.3. IC Power Supply ..................................................................................................................................... 16 pe 8.4. Disable LEDs .......................................................................................................................................... 16 .bts 8.5. Current.................................................................................................................................................... 16 w Document References .......................................................................................................................................... 17 http://ww Terms and Definitions ........................................................................................................................................... 18 Tables, Figuredsfoar nd Equations Table 6.1: Battery Level Events ............................................................................................................................ 13 epare Figure 2.1: Thermistor Configuration....................................................................................................................... 5 Pr Figure 3.1: Vref Configuration ................................................................................................................................. 7 Figure 4.1: Charger Configuration........................................................................................................................... 8 Figure 5.1: Flow Diagram for Temperature Based Charge Configuration Selection ............................................. 10 Figure 5.2: Charger Settings ................................................................................................................................. 11 Figure 6.1: Vbat Configuration .............................................................................................................................. 12 Figure 7.1: USB Configuration .............................................................................................................................. 14 Figure 7.2: USB Charger configuration items........................................................................................................ 15 © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 3 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note 1. Introduction This document describes how to configure the battery charger on CSR8600 ROM devices using the Headset Configuration Tool. Detailed descriptions of the PS Key format used in the Headset can be found in the Headset ADK 1 Configuration PS Key Bit Fields Application Note. Further details regarding power management and charger setup in CSR8600 devices can be found in Power Management Application Note and Lithium Polymer Battery Charger Calibration and Operation for CSR8670 Application Note. - Monday, November 25, 2013 http://www.btspeaker.com Prepared for © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 4 of 18 CS-223677-ANP1 www.csr.com 2. Thermistor Configuration This section describes how to configure the CSR8600 ROM device for temperature readings from a thermistor used for battery temperature measurement during charge control. Up to 7 battery temperature thresholds can be set for use with different temperature dependent charger configurations. BlueCore CSR8600 ROM Charger Configuration Application Note - Monday, November 25, 2013 http:F//iwguwrew2.b.1ts: pTheearkmeirs.tcoormConfiguration r 2.1. Configuration with Thermistor ed f See the Lithium Polymer Battery Charger Calibration and Operation for CSR8670 Application Note for example ar battery temperature monitoring circuits. Prep Description of Thermistor Configuration Fields ADC Source: The thermistor input should be configured to use one of the available AIOs. Read Period When Charging: This configures the time interval between thermistor updates in seconds while charging. 0 disables this timer. Read Period When Not Charging: This configures the time interval between thermistor updates in seconds while not charging. 0 disables this timer. Drive Thermistor PIO: When set, the PIO specified will be used to provide drive to the thermistor. If this is not set an alternative drive source is required. Thermistor Drive Delay: This configures a delay in milliseconds between driving the thermistor and taking a reading of up to 15 ms. This may be used to allow the voltage to settle before taking a temperature reading. © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 5 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note Use Raw Limits: When set, the limit thresholds are entered as raw ADC counts rather than mV. When the thermistor drive source is the same as the ADC source, the option of using raw limits is available as the thermistor voltage is always proportional to the common drive source for given temperatures. This is more accurate than a voltage reading as it eliminates any error from the tolerance of Vref which is used in voltage calculations. The CSR8600 ROM devices have 10 bit ADCs giving a range of 0 to 1023. should be 1.35 V. ADC count for a specific voltage across the thermistor can be calculated using the following formula: 013 is the voltage measured on the thermistor and is the voltage source for the ADC and thermistor. 5, 2 Limit Thresholds: Up to 7 limit thresholds, increasing down the list, can be configured to provide a greater degree r 2 of temperature monitoring control. If fewer than 7 limits are set, then the list must finish with "-1". The list values be are set in counts or mV depending on how Use Raw Limits is set. See section 5 for charger options. y, Novem 2.2. Configuration without Thermistor nda Using and charging batteries outside of their operating temperature range may damage the battery, reducing the - Mo life of battery and/or damaging the device leading to consumer safety issues. CSR recommends using a thermistor to monitor battery temperature to reduce the risk of battery malfunction. om To use CSR8600 ROM devices without a thermistor, use the following settings: er.c ADC Source: ADC source will be ignored so this may be set as any source. eak Read Period When Charging: Set to 0. tsp Read Period When Not Charging: Set to 0. w.b Drive Thermistor PIO: Not selected ://ww Thermistor Drive Delay: Set to 0. http Use Raw Limits: Selected. r Limit Thresholds: Set the first limit threshold to -1. ared fo With the above settings the first (top) charger configuration option shall be used. Other charger configurations Prep shall be ignored. See section 5 for charger options. © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 6 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note 3. Vref Configuration This section describes how to configure the CSR8600 ROM device reference voltage, Vref, which is used by the on-chip application when thermistor limit thresholds are provided in mV. 25, 2013 Figure 3.1: Vref Configuration ber Description of Vref Configuration Fields vem ADC Source: The ADC Source for the reference voltage should be configured to use VREF for CSR8600 ROM o devices. The VREF source uses the on chip reference. Customers should only change this on advice from CSR. ay, N Read Period When Charging: This configures the time interval between Vref updates in seconds while charging. d 0 disables this timer. Mon Read Period When Not Charging: This configures the time interval between Vref updates in seconds while not - charging. 0 disables this timer. http://www.btspeaker.com Prepared for © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 7 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note 4. Charger Configuration This section describes how to configure the CSR8600 ROM device charger readings. 5, 2013 Figure 4.1: Charger Configuration r 2 Description of Charger Configuration Fields mbe ADC Source: The ADC Source for the charger should be configured to use VCHG for CSR8600 ROM devices. ve Customers should only change this on advice from CSR. No Vchg Threshold (mV): This configures the threshold under which charging can be limited. This is only applicable if ay, the device is configured to support USB battery charging. See section 7 for further USB charging configuration d options. Mon Read Period When Charging: This configures the time interval between the charger voltage reading updates in - seconds while charging. 0 disables this timer. m Read Period When Not Charging: This configures the time interval between charger voltage reading updates in http://www.btspeaker.co seconds while not charging. 0 disables this timer. Prepared for © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 8 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note 5. Charger Settings This section describes how to configure the CSR8600 ROM device charge configuration settings which are used at different battery temperatures. 5.1. Charge Configuration Selection The charger can be configured to use up to eight possible charge configurations. The charge configurations correspond to the seven thermistor limit thresholds, see section 2. 3 Figure 5.1 shows the method used for determining the charge configuration settings to be used for a given 01 temperature. 5, 2 The on-chip application compares the thermistor level, in millivolts or ADC counts, to the thermistor limit 2 thresholds. ber If the thermistor level is less than the 1st threshold, the 1st charge configuration is used. If the thermistor level is em less than the 2nd threshold, but greater or equal to the 1st threshold, the 2nd charge configuration is used. This ov continues for each of the 7 thresholds. If the thermistor level is greater than the 7th threshold, the 8th charge N configuration is used. day, For the case where thresholds are set and , the threshold will be "-1" signifying the limit end. In n this case the charge configuration shall be used for any thermistor level greater than largest threshold. - Mo Increasing or decreasing ADC count or , crossing a limit threshold, changes the charger configuration to the next/previous configuration listedhattcpc:o//rwdiwngwly..btspeaker.com Prepared for © Cambridge Silicon Radio Limited 2012 This material is subject to CSR’s non-disclosure agreement Page 9 of 18 CS-223677-ANP1 www.csr.com BlueCore CSR8600 ROM Charger Configuration Application Note Get Thermistor Level Is (Level < Limit 1 Threshold) OR Limit 1 the limit end? Yes Use Charge Setting 1 No Is (Level < Limit 2 Threshold) OR Limit 2 the limit end? Yes - MonUdsaeyC,hNarogeveSmettbinegr225, 2013 (LeveLli

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