bq20z60-R1 www.ti.com SLUS991 – DECEMBER 2009 SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY FOR USE WITH THE bq29330 Check for Samples :bq20z60-R1 FEATURES APPLICATIONS • • • • 1 2 • • • • • • • • • • Next Generation Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries – Better Than 1% Error Over the Lifetime of the Battery Supports the Smart Battery Specification SBS V1.1 Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells Powerful 8-Bit RISC CPU With Ultralow Power Modes Full Array of Programmable Protection Features – Voltage, Current, and Temperature Satisfies JEITA Guidelines Added Flexibility to Handle More Complex Charging Profiles Lifetime Data Logging Drives 3, 4, or 5 Segment LED Display for Battery-Pack Conditions Supports SHA-1 Authentication Available in a 30-Pin TSSOP (DBT) package Notebook PCs Medical and Test Equipment Portable Instrumentation DESCRIPTION The bq20z60-R1 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z60-R1 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z60-R1 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, which reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximizes functionality and safety while minimizing external component count and cost in smart battery circuits. The Impedance Track™ technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables the remaining capacity to be calculated with discharge rate, temperature, and cell aging that are all accounted for during each stage of every cycle with high accuracy. Table 1. AVAILABLE OPTIONS TA –40°C to 85°C (1) (2) PACKAGE 30-PIN TSSOP (DBT) Tube bq20z60-R1DBT (1) 30-PIN TSSOP (DBT) Tape & Reel bq20z60-R1DBTR (2) A single tube quantity is 60 units. A single reel quantity is 2000 units 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Impedance Track is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2009, Texas Instruments Incorporated bq20z60-R1 SLUS991 – DECEMBER 2009 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. SYSTEM PARTITIONING DIAGRAM Pack + Discharge/Charge/ Pre-Charge FETs Fuse 32kHz Clock Generator Charging Algorithm SMBus SBS v1.1 Data SHA-1 Authentication Cell Balancing Algorith & Control Temperature Measurement & Protection Therm Supply Voltage LDO/Therm Drive N-Ch FET Drive & Charge Pumps Watchdog, Reset, & Protection Timing Reset 32KHz bq29330 Validation & Control Alert System Interface I2C Registers System Interface Overvoltage & Undervoltage Protection Cell & Pack Voltage Measurement Voltage Level Translator Overcurrent Protection Impedance Track™ Gas Gauging Overcurrent & Short Circuit Protection bq20z60-R1 VCELL4 VCELL3 VCELL2 VCELL1 2nd Level Voltage Protection Fail Safe Protection Cell Selection Multiplexer LED Display Cell Balancing Drive DISP bq294xy bq29330 Pack RSNS 5mΩ - 20m Ω typ PACKAGE THERMAL DATA Table 2. 2 DEVICE PACKAGE θja TA ≥ 25°C POWER RATING bq20z60-R1 TSSOP-30 63.9°C/W 1565mW DERATING FACTOR TA > 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING 15.65mW/°C 861mW 626mW Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 bq20z60-R1 www.ti.com SLUS991 – DECEMBER 2009 PIN OUT DIAGRAM TSSOP (PW) (TOP VIEW) NC 1 30 VCELL- XALERT 2 29 VCELL+ SDATA 3 28 NC SCLK 4 27 RBI CLKOUT 5 26 VCC TS1 6 25 VSS TS2 7 24 MRST PRES 8 23 SRN PFIN 9 22 SRP SAFE 10 21 VSS SMBD 11 20 LED5 NC 12 19 LED4 SMBC 13 18 LED3 DISP 14 17 LED2 NC 15 16 LED1 PIN FUNCTIONS PIN (1) NO. NAME 1 NC 2 3 I/O (1) DESCRIPTION – Not used— leave floating XALERT I Input from bq29330 XALERT output. SDATA I/O Data transfer to and from bq29330 4 SCLK I/O Communication clock to the bq29330 5 CLKOUT O 32.768-kHz output for the bq29330. This pin should be directly connected to the AFE. 6 TS1 I 1st Thermistor voltage input connection to monitor temperature 7 TS2 I 2nd Thermistor voltage input connection to monitor temperature 8 PRES I Active low input to sense system insertion. Typically requires additional ESD protection. 9 PFIN I Active low input to detect secondary protector output status, and to allow the bq20z60-R1 to report the status of the 2nd level protection output 10 SAFE OD Active high output to enforce additional level of safety protection; e.g., fuse blow. 11 SMBD I/OD SMBus data open-drain bidirectional pin used to transfer address and data to and from the bq20z60-R1 12 NC – 13 SMBC I/OD 14 DISP I Display control for the LEDs. This pin is typically connected to bq29330 REG via a 100KΩ resistor and a push button switch connect to VSS 15 NC – Not used— leave floating 16 LED1 O LED1 display segment that drives an external LED depending on the firmware configuration 17 LED2 O LED2 display segment that drives an external LED depending on the firmware configuration 18 LED3 O LED3 display segment that drives an external LED depending on the firmware configuration 19 LED4 O LED4 display segment that drives an external LED depending on the firmware configuration 20 LED5 O LED5 display segment that drives an external LED depending on the firmware configuration 21 VSS – Negative supply voltage Not used— leave floating SMBus clock open-drain bidirectional pin used to clock the data transfer to and from the bq20z60-R1 I = Input, IA = Analog input, I/O = Input/output, I/OD = Input/Open-drain output, O = Output, P = Power Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 3 bq20z60-R1 SLUS991 – DECEMBER 2009 www.ti.com PIN FUNCTIONS (continued) PIN FUNCTIONS (continued) PIN I/O (1) DESCRIPTION NO. NAME 22 SRP IA Connections for a small-value sense resistor to monitor the battery charge- and discharge-current flow 23 SRN IA Connections for a small-value sense resistor to monitor the battery charge- and discharge-current flow 24 MRST I Master reset input that forces the device into reset when held low. Must be held high for normal operation 25 VSS P Negative supply voltage 26 VCC P Positive supply voltage 27 RBI P 28 NC – Not used— leave floating 29 VCELL+ I Input from bq29330 used to read a scaled value of individual cell voltages 30 VCELL– I Input from bq29330 used to read a scaled value of individual cell voltages ABSOLUTE MAXIMUM RATINGS Over operating free-air temperature range (unless otherwise noted) (1) RANGE VCC relative to VSS Supply voltage range V(IOD) relative to VSS Open-drain I/O pins VI relative to VSS Input voltage range to all other pins TA Operating free-air temperature range –40°C to 85°C Tstg Storage temperature range –65°C to 150°C (1) –0.3 V to 2.75 V –0.3 V to 6 V –0.3 V to VCC + 0.3 V Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER VCC TEST CONDITIONS Supply voltage ICC Operating mode current I(SLEEP) Low-power storage mode current I(SHUTDO Low-power shutdown mode current MIN TYP MAX 2.4 2.5 2.6 No flash programming WN) 400 bq20z60-R1 + bq29330 475 Sleep mode 8 (1) bq20z60-R1 + bq29330 51 Shutdown mode 0.1 bq20z60-R1 + bq29330 0.2 μA μA 1 IOL = 0.5 mA 0.4 Output voltage low LED1, LED2, LED3, LED4, LED5 IOL = 10 mA 0.4 VOH Output voltage high SMBC, SMBD, SDATA, SCLK, SAFE IOH = –1 mA VIL Input voltage low SMBC, SMBD, SDATA, SCLK, XALERT, PRES, PFIN, DISP VIH (1) 4 V (1) Output voltage low SMBC, SMBD, SDATA, SCLK, SAFE VOL UNIT VCC – 0.5 μA V V V –0.3 0.8 V Input voltage high SMBC, SMBD, SDATA, SCLK, XALERT, PRES, PFIN 2 6 V Input voltage high DISP 2 VCC + 0.3 V This value does not include the bq29330 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 bq20z60-R1 www.ti.com SLUS991 – DECEMBER 2009 ELECTRICAL CHARACTERISTICS (continued) VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX 5 UNIT CIN Input capacitance V(AI1) Input voltage range VCELL+, VCELL-,TS1, TS2 pF V(AI2) Input voltage range SRN, SRP Z(AI2) Input impedance VCELL+, VCELL-, TS1, TS2 0 V–1 V 8 MΩ Z(AI1) Input impedance SRN, SRP 0 V–1 V 2.5 MΩ –0.2 0.8 x VCC – 0.20 0.20 V POWER-ON RESET VCC = 2.4V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT– Negative-going voltage input 1.7 1.8 1.9 V VHYS Power-on reset hysteresis 50 125 200 mV TYP MAX UNIT POWER ON RESET BEHAVIOR VS FREE-AIR TEMPERATURE Power-On Reset Negative-Going Voltage - V 1.81 1.8 1.79 1.78 1.77 1.76 -40 -20 0 20 40 60 80 TA - Free-Air Temperature - °C INTEGRATING ADC (Coulomb Counter) CHARACTERISTICS VCC = 2.4V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER V(SR) Input voltage range, V(SRN) and V(SRP) V(SROS) Input offset INL Integral nonlinearity error TEST CONDITIONS V(SR) = V(SRN) – V(SRP) MIN –0.2 0.2 V μV 10 0.007 0.034 % MIN TYP MAX UNIT 4.194 MHz –3 0.25 3 –2 0.25 2 OSCILLATOR VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS HIGH FREQUENCY OSCILLATOR f(OSC) f(EIO) (1) (2) Operating frequency Frequency error (1) (2) TA = 20°C to 70°C % The frequency error is measured from 4.194 MHz. The frequency drift is included and measured from the trimmed frequency at VCC = 2.5 V, TA = 25°C. Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 5 bq20z60-R1 SLUS991 – DECEMBER 2009 www.ti.com OSCILLATOR (continued) VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER t(SXO) Start-up time TEST CONDITIONS MIN (3) TYP MAX 2.5 5 UNIT ms LOW FREQUENCY OSCILLATOR f(LOSC) Operating frequency f(LEIO) Frequency error (2) t(LSXO) Start-up time (3) (4) (5) 32.768 (4) TA = 20°C to 70°C kHz –2.5 0.25 2.5 –1.5 0.25 1.5 (5) 500 % μs The start-up time is defined as the time it takes for the oscillator output frequency to be within 1 % of the specified frequency. The frequency error is measured from 32.768 kHz. The start-up time is defined as the time it takes for the oscillator output frequency to be ± 3%. DATA FLASH MEMORY CHARACTERISTICS VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER tDR t(WORDPROG) I(DDdPROG) (1) TEST CONDITIONS Data retention See (1) Flash programming write-cycles See (1) Word programming time See (1) See (1) Flash-write supply current MIN TYP MAX UNIT 10 Years 20,000 Cycles 2 ms 5 10 mA TYP MAX Specified by design. Not production tested. REGISTER BACKUP VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER I(RB) RB data-retention input current TEST CONDITIONS MIN V(RB) > V(RBMIN), VCC < VIT- 1500 V(RB) > V(RBMIN), VCC < VIT-, TA = 0°C to 50°C RB data-retention voltage (1) V(RB) (1) UNIT 40 160 1.7 nA V Specified by design. Not production tested. SMBus TIMING SPECIFICATIONS VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS fSMB SMBus operating frequency Slave mode, SMBC 50% duty cycle fMAS SMBus master clock frequency Master mode, no clock low slave extend tBUF Bus free time between start and stop tHD:STA Hold time after (repeated) start tSU:STA Repeated start setup time tSU:STO Stop setup time tHD:DAT Data hold time tSU:DAT Data setup time tTIMEOUT Error signal/detect tLOW Clock low period tHIGH Clock high period (1) (2) 6 MIN TYP 10 MAX UNIT 100 kHz 51.2 4.7 4 μs 4.7 4 Receive mode 0 Transmit mode 300 ns 250 See (1) 25 35 4.7 See (2) 4 50 ms μs The bq20z60-R1 times out when any clock low exceeds tTIMEOUT. tHIGH:MAX. is minimum bus idle time. SMBC = 1 for t > 50 μs causes reset of any transaction involving the bq20z60-R1 that is in progress. Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 bq20z60-R1 www.ti.com SLUS991 – DECEMBER 2009 SMBus TIMING SPECIFICATIONS (continued) VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX See (3) 25 tLOW:MEXT Cumulative clock low master extend time See (4) 10 tLOW:SEXT Cumulative clock low slave extend time tF Clock/data fall time (VILMAX – 0.15 V) to (VIHMIN + 0.15 V) tR Clock/data rise time 0.9 VCC to (VILMAX – 0.15 V) (3) (4) UNIT ms 300 ns 1000 tLOW:SEXT is the cumulative time a slave device is allowed to extend the clock cycles in one message from initial start to the stop. tLOW:MEXT is the cumulative time a master device is allowed to extend the clock cycles in one message from initial start to the stop. SMBus TIMING DIAGRAM tR tSU(STO) tF tF tHD(STA) tBUF tHIGH SMBC SMBC SMBD SMBD P tR S tLOW tHD(DAT) Start and Stop condition tSU(DAT) Wait and Hold condition tSU(STA) tTIMEOUT SMBC SMBC SMBD SMBD S Timeout condition A. Repeated Start condition SCLKACK is the acknowledge related clock pulse generated by the master. Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 7 bq20z60-R1 SLUS991 – DECEMBER 2009 www.ti.com FEATURE SET Primary (1st Level) Safety Features The bq20z60-R1 supports a wide range of battery and system protection features that can easily be configured. The primary safety features include: • • • • • Cell over/undervoltage protection Charge and discharge overcurrent Short circuit protection Charge and discharge overtemperature with independent alarms and thresholds for each thermistor AFE Watchdog Secondary (2nd Level) Safety Features The secondary safety features of the bq20z60-R1 can be used to indicate more serious faults via the SAFE pin. This pin can be used to blow an in-line fuse to permanently disable the battery pack from charging or discharging. The secondary safety protection features include: • • • • • • • • • • Safety over voltage Safety under voltage 2nd level protection IC input Safety over current in charge and discharge Safety overtemperature in charge and discharge with independent alarms and thresholds for each thermistor Charge FET and zero-volt Charge FET fault Discharge FET fault Cell imbalance detection (active and at rest) Open thermistor detection AFE communication fault Charge Control Features The bq20z60-R1 charge control features include: • Supports JEITA temperature ranges. Reports charging voltage and charging current according to the active temperature range. • Handles more complex charging profiles. Allows for splitting the standard temperature range into 2 sub-ranges and allows for varying the charging current according to the cell voltage. • Reports the appropriate charging current needed for constant current charging and the appropriate charging voltage needed for constant voltage charging to a smart charger using SMBus broadcasts. • Determines the chemical state of charge of each battery cell using Impedance Track™ and can reduce the charge difference of the battery cells in fully charged state of the battery pack gradually using cell balancing algorithm during charging. This prevents fully charged cells from overcharging and causing excessive degradation and also increases the usable pack energy by preventing premature charge termination • Supports pre-charging/zero-volt charging • Supports charge inhibit and charge suspend if battery pack temperature is out of temperature range • Reports charging fault and also indicate charge status via charge and discharge alarms. Gas Gauging The bq20z60-R1 uses the Impedance Track™ Technology to measure and calculate the available charge in battery cells. The achievable accuracy is better than 1% error over the lifetime of the battery and there is no full charge discharge learning cycle required. See Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm application note (SLUA364) for further details. 8 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 bq20z60-R1 www.ti.com SLUS991 – DECEMBER 2009 Lifetime Data Logging Features The bq20z60-R1 offers lifetime data logging, where important measurements are stored for warranty and analysis purposes. The data monitored include: • Lifetime maximum temperature • Lifetime maximum temperature count • Lifetime maximum temperature duration • Lifetime minimum temperature • Lifetime maximum battery cell voltage • Lifetime maximum battery cell voltage count • Lifetime maximum battery cell voltage duration • Lifetime minimum battery cell voltage • Lifetime maximum battery pack voltage • Lifetime minimum battery pack voltage • Lifetime maximum charge current • Lifetime maximum discharge current • Lifetime maximum charge power • Lifetime maximum discharge power • Lifetime maximum average discharge current • Lifetime maximum average discharge power • Lifetime average temperature Authentication The bq20z60-R1 supports authentication by the host using SHA-1. Power Modes The bq20z60-R1 supports 3 different power modes to reduce power consumption: • • • In Normal Mode, the bq20z60-R1 performs measurements, calculations, protection decisions, and data updates in 1 second intervals. Between these intervals, the bq20z60-R1 is in a reduced power stage. In Sleep Mode, the bq20z60-R1 performs measurements, calculations, protection decisions and data update in adjustable time intervals. Between these intervals, the bq20z60-R1 is in a reduced power stage. The bq20z60-R1 has a wake function that enables exit from Sleep mode, when current flow or failure is detected. In Shutdown Mode the bq20z60-R1 is completely disabled. CONFIGURATION Oscillator Function The bq20z60-R1 fully integrates the system oscillators therefore, no external components are required for this feature. System Present Operation The bq20z60-R1 periodically verifies the PRES pin and detects that the battery is present in the system via a low state on a PRES input. When this occurs, the bq20z60-R1 enters normal operating mode. When the pack is removed from the system and the PRES input is high, the bq20z60-R1 enters the battery-removed state, disabling the charge, discharge, and ZVCHG FETs. The PRES input is ignored and can be left floating when non-removal mode is set in the data flash. Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 9 bq20z60-R1 SLUS991 – DECEMBER 2009 www.ti.com BATTERY PARAMETER MEASUREMENTS The bq20z60-R1 uses an integrating delta-sigma analog-to-digital converter (ADC) for current measurement, and a second delta-sigma ADC for individual cell and battery voltage, and temperature measurement. Charge and Discharge Counting The integrating delta-sigma ADC measures the charge/discharge flow of the battery by measuring the voltage drop across a small-value sense resistor between the SRP and SRN pins. The integrating ADC measures bipolar signals from -0.25 V to 0.25 V. The bq20z60-R1 detects charge activity when VSR = V(SRP)-V(SRN)is positive and discharge activity when VSR = V(SRP)-V(SRN) is negative. The bq20z60-R1 continuously integrates the signal over time, using an internal counter. The fundamental rate of the counter is 0.65nVh. Voltage The bq20z60-R1 updates the individual series cell voltages through the bq29330 at one second intervals. The bq20z60-R1 configures the bq29330 to connect the selected cell, cell offset, or bq29330 VREF to the CELL pin of the bq29330, which is required to be connected to VIN of the bq20z60-R1. The internal ADC of the bq20z60-R1 measures the voltage, scales it, and calibrates itself appropriately. This data is also used to calculate the impedance of the cell for the Impedance Track™ gas-gauging. Current The bq20z60-R1 uses the SRP and SRN inputs to measure and calculate the battery charge and discharge current using a 5mΩ to 20mΩ typ. sense resistor. Wake Function The bq20z60-R1 can exit sleep mode, if enabled, by the presence of a programmable level of current signal across SRP and SRN. Auto Calibration he bq20z60-R1 provides an auto-calibration feature to cancel the voltage offset error across SRP and SRN for maximum charge measurement accuracy. The bq20z60-R1 performs auto-calibration when the SMBus lines stay low continuously for a minimum of a programmable amount of time. Temperature The bq20z60-R1 has an internal temperature sensor and inputs for 2 external temperature sensors, TS1 and TS2, used in conjunction with two identical NTC thermistors (default are Semitec 103AT) to sense the battery environmental temperature. The bq20z60-R1 can be configured to use the internal, or up to 2 external temperature sensors. COMMUNICATIONS The bq20z60-R1 uses SMBus v1.1 with Master Mode and package error checking (PEC) options per the SBS specification. SMBus On and Off State The bq20z60-R1 detects an SMBus off state when SMBC and SMBD are logic-low for ≥ 2 seconds. Clearing this state requires either SMBC or SMBD to transition high. Within 1ms, the communication bus is available. 10 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 bq20z60-R1 www.ti.com SLUS991 – DECEMBER 2009 SBS Commands Table 3. SBS COMMANDS SBS CMD MODE NAME FORMAT SIZE IN MIN BYTES VALUE MAX VALUE DEFAULT VALUE UNIT 0x00 R/W ManufacturerAccess Hex 2 0x0000 0xffff — — 0x01 R/W RemainingCapacityAlarm Integer 2 0 700 or 1000 300 or 432 mAh or 10mWh 0x02 R/W RemainingTimeAlarm Unsigned Integer 2 0 30 10 min 0x03 R/W BatteryMode Hex 2 0x0000 0xffff — — 0x04 R/W AtRate Integer 2 -32,768 32,767 0 mA or 10mW 0x05 R AtRateTimeToFull Unsigned Integer 2 0 65,535 — min 0x06 R AtRateTimeToEmpty Unsigned Integer 2 0 65,535 — min 0x07 R AtRateOK Unsigned Integer 2 0 65,535 — — 0x08 R Temperature Unsigned Integer 2 0 65,535 — 0.1°K 0x09 R Voltage Unsigned Integer 2 0 20,000 — mV 0x0a R Current Integer 2 -32,768 32,767 — mA 0x0b R AverageCurrent Integer 2 -32,768 32,767 — mA 0x0c R MaxError Unsigned Integer 1 0 100 — % 0x0d R RelativeStateOfCharge Unsigned Integer 1 0 100 — % 0x0e R AbsoluteStateOfCharge Unsigned Integer 1 0 100+ — % 0x0f R/W RemainingCapacity Unsigned Integer 2 0 65,535 — mAh or 10mWh 0x10 R FullChargeCapacity Unsigned Integer 2 0 65,535 — mAh or 10mWh 0x11 R RunTimeToEmpty Unsigned Integer 2 0 65,534 — min 0x12 R AverageTimeToEmpty Unsigned Integer 2 0 65,534 — min 0x13 R AverageTimeToFull Unsigned Integer 2 0 65,534 — min 0x14 R ChargingCurrent Unsigned Integer 2 0 65,534 — mA 0x15 R ChargingVoltage Unsigned Integer 2 0 65,534 — mV 0x16 R BatteryStatus Hex 2 0x0000 0xdbff — — 0x17 R/W CycleCount Unsigned Integer 2 0 65,535 0 — 0x18 R/W DesignCapacity Integer 2 0 32,767 4400 or 6336 mAh or 10mWh 0x19 R/W DesignVoltage Integer 2 7000 18,000 14,400 mV 0x1a R/W SpecificationInfo Hex 2 0x0000 0xffff 0x0031 — 0x1b R/W ManufactureDate Unsigned Integer 2 — 65,535 0 — 0x1c R/W SerialNumber Hex 2 0x0000 0xffff 0 — 0x20 R/W ManufacturerName String 11+1 — — Texas Instruments — 0x21 R/W DeviceName String 7+1 — — bq20z60-R1 — 0x22 R/W DeviceChemistry String 4+1 — — LION — 0x23 R/W ManufacturerData String 14+1 — — — — 0x2f R/W Authenticate String 20+1 — — — — 0x3c R CellVoltage4 Unsigned Integer 2 0 65,535 — mV 0x3d R CellVoltage3 Unsigned Integer 2 0 65,535 — mV 0x3e R CellVoltage2 Unsigned Integer 2 0 65,535 — mV 0x3f R CellVoltage1 Unsigned Integer 2 0 65,535 — mV Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 11 bq20z60-R1 SLUS991 – DECEMBER 2009 www.ti.com Table 4. EXTENDED SBS COMMANDS SBS CMD MODE NAME FORMAT SIZE IN MIN BYTES VALUE MAX VALUE DEFAULT VALUE UNIT 0x45 R AFEData String 11+1 — — — — 0x46 R/W FETControl Hex 2 0x00 0xff — — 0x4f R StateOfHealth Hex 2 0x0000 0xffff — — 0x50 R SafetyAlert Hex 2 0x0000 0xffff — — 0x51 R SafetyStatus Hex 2 0x0000 0xffff — — 0x52 R PFAlert Hex 2 0x0000 0xffff — — 0x53 R PFStatus Hex 2 0x0000 0xffff — — 0x54 R OperationStatus Hex 2 0x0000 0xffff — — 0x55 R ChargingStatus Hex 2 0x0000 0xffff — — 0x57 R ResetData Hex 2 0x0000 0xffff — — 0x58 R WDResetData Unsigned Integer 2 0 65,535 — — 0x5a R PackVoltage Unsigned Integer 2 0 65,535 — mV 0x5d R AverageVoltage Unsigned Integer 2 0 65,535 — mV 0x5e R TS1Temperature Integer 2 –400 1200 — 0.1°C 0x5f R TS2Temperature Integer 2 –400 1200 — 0.1°C 0x60 R/W UnSealKey Hex 4 0x00000000 0xffffffff — — 0x61 R/W FullAccessKey Hex 4 0x00000000 0xffffffff — — 0x62 R/W PFKey Hex 4 0x00000000 0xffffffff — — 0x63 R/W AuthenKey3 Hex 4 0x00000000 0xffffffff — — 0x64 R/W AuthenKey2 Hex 4 0x00000000 0xffffffff — — 0x65 R/W AuthenKey1 Hex 4 0x00000000 0xffffffff — — 0x66 R/W AuthenKey0 Hex 4 0x00000000 0xffffffff — — 0x68 R SafetyAlert2 Hex 2 0x0000 0x000f — — 0x69 R SafetyStatus2 Hex 2 0x0000 0x000f — — 0x6a R PFAlert2 Hex 2 0x0000 0x000f — — 0x6b R PFStatus2 Hex 2 0x0000 0x000f — — 0x6c R/W ManufBlock1 String 20 — — — — 0x6d R/W ManufBlock2 String 20 — — — — 0x6e R/W ManufBlock3 String 20 — — — — 0x6f R/W ManufBlock4 String 20 — — — — 0x70 R/W ManufacturerInfo String 31+1 — — — — 0x71 R/W SenseResistor Unsigned Integer 2 0 65,535 — μΩ 0x72 R TempRange Hex 2 0x0000 0xffff — — 0x73 R LifetimeData1 String 32+1 — — — — 0x74 R LifetimeData2 String 8+1 — — — — 0x77 R/W DataFlashSubClassID Hex 2 0x0000 0xffff — — 0x78 R/W DataFlashSubClassPage1 Hex 32 — — — — 0x79 R/W DataFlashSubClassPage2 Hex 32 — — — — 0x7a R/W DataFlashSubClassPage3 Hex 32 — — — — 0x7b R/W DataFlashSubClassPage4 Hex 32 — — — — 0x7c R/W DataFlashSubClassPage5 Hex 32 — — — — 0x7d R/W DataFlashSubClassPage6 Hex 32 — — — — 0x7e R/W DataFlashSubClassPage7 Hex 32 — — — — 0x7f R/W DataFlashSubClassPage8 Hex 32 — — — — 12 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 bq20z60-R1 www.ti.com SLUS991 – DECEMBER 2009 bq20z60-R1DBT APPLICATION SCHEMATIC Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq20z60-R1 13 PACKAGE OPTION ADDENDUM www.ti.com 4-Jan-2010 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty BQ20Z60DBT-R1 ACTIVE TSSOP DBT 30 BQ20Z60DBTR-R1 ACTIVE TSSOP DBT 30 60 Lead/Ball Finish MSL Peak Temp (3) Green (RoHS & no Sb/Br) Call TI Level-2-260C-1 YEAR 2000 Green (RoHS & no Sb/Br) Call TI Level-2-260C-1 YEAR (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. 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