BQ34Z100PWR-R2

BQ34Z100-R2 SLUSF37 – DECEMBER 2022 BQ34Z100-R2 Wide Range Fuel Gauge with Impedance Track™ Technology 1 Features 2 Applications • • • • • • • • • • • • • • • • Supports Li-ion, LiFePO4, PbA, NiMH, and NiCd chemistries Capacity estimation using patented Impedance Track™ technology for batteries from 3 V to 16.7 KV – Aging compensation – Self-discharge compensation Supports battery capacities up to 7000 Ah with standard configuration options Supports charge and discharge currents up to 8160 A with standard configuration options External NTC thermistor support Supports two-wire I2C and HDQ single-wire communication interfaces with host system SHA-1/HMAC authentication One- or four-LED direct display control Five-LED and higher display through port expander Reduced power modes (typical battery pack operating range conditions) – NORMAL operation: < 145-µA average – SLEEP: < 84-µA average – FULL SLEEP: < 30-µA average Package: 14-pin TSSOP Light electric vehicles Medical instrumentation Mobile radios Power tools Uninterruptible power supplies (UPS) 3 Description The BQ34Z100-R2 device is an Impedance Track™ fuel gauge for Li-ion, PbA, NiMH, and NiCd batteries, and works independently of battery seriescell configurations. Batteries from 3 V to 16.7 KV can be easily supported through an external voltage translation circuit that is controlled automatically to reduce system power consumption. The BQ34Z100-R2 device provides several interface options, including an I2C peripheral, an HDQ peripheral, one or four direct LEDs, and an ALERT output pin. Additionally, the BQ34Z100-R2 provides support for an external port expander for more than four LEDs. Device Information PART NUMBER(1) BQ34Z100-R2 (1) PACKAGE BODY SIZE (NOM) TSSOP (14) 5.00 mm × 4.40 mm For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 Table of Contents 1 Features............................................................................1 2 Applications..................................................................... 1 3 Description.......................................................................1 4 Revision History.............................................................. 2 5 Pin Configuration and Functions...................................3 6 Specifications.................................................................. 4 6.1 Absolute Maximum Ratings........................................ 4 6.2 ESD Ratings............................................................... 4 6.3 Recommended Operating Conditions.........................4 6.4 Thermal Information....................................................5 6.5 Electrical Characteristics: Power-On Reset................ 5 6.6 Electrical Characteristics: LDO Regulator...................5 6.7 Electrical Characteristics: Internal Temperature Sensor Characteristics.................................................. 5 6.8 Electrical Characteristics: Low-Frequency Oscillator....................................................................... 6 6.9 Electrical Characteristics: High-Frequency Oscillator....................................................................... 6 6.10 Electrical Characteristics: Integrating ADC (Coulomb Counter) Characteristics............................... 6 6.11 Electrical Characteristics: ADC (Temperature and Cell Measurement) Characteristics........................ 6 6.12 Electrical Characteristics: Data Flash Memory Characteristics...............................................................7 6.13 Timing Requirements: HDQ Communication............ 7 6.14 Timing Requirements: I2C-Compatible Interface...... 8 6.15 Typical Characteristics.............................................. 9 7 Functional Block Diagram............................................ 10 8 Application and Implementation.................................. 11 8.1 Application Information..............................................11 8.2 Typical Applications...................................................11 9 Power Supply Recommendations................................17 10 Layout...........................................................................18 10.1 Layout Guidelines................................................... 18 10.2 Layout Example...................................................... 18 11 Device and Documentation Support..........................21 11.1 Documentation Support.......................................... 21 11.2 Receiving Notification of Documentation Updates.. 21 11.3 Support Resources................................................. 21 11.4 Trademarks............................................................. 21 11.5 Electrostatic Discharge Caution.............................. 21 11.6 Glossary.................................................................. 21 12 Mechanical, Packaging, and Orderable Information.................................................................... 21 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. 2 DATE REVISION NOTES December 2022 * Initial Release Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 5 Pin Configuration and Functions P2 1 14 P3/SDA VEN 2 13 P4/SCL P1 3 12 P5/HDQ BAT 4 11 P6/TS CE 5 10 SRN REGIN 6 9 SRP REG25 7 8 VSS Not to scale Table 5-1. Pin Functions PIN NAME NUMBER TYPE DESCRIPTION P2 1 O LED 2 or Not Used (connect to VSS) VEN 2 O Active High Voltage Translation Enable. This signal is optionally used to switch the input voltage divider on/off to reduce the power consumption (typ 45 µA) of the divider network. If not used, then this pin can be left floating or tied to VSS. P1 3 O LED 1 or Not Used (connect to VSS). This pin is also used to drive an LED for single-LED mode. Use a small signal N-FET (Q1) in series with the LED as shown on Figure 8-4. BAT 4 I Translated Battery Voltage Input CE 5 I Chip Enable. Internal LDO is disconnected from REGIN when driven low. REGIN 6 P Internal integrated LDO input. Decouple with a 0.1-µF ceramic capacitor to VSS. REG25 7 P 2.5-V output voltage of the internal integrated LDO. Decouple with 1-µF ceramic capacitor to VSS. VSS 8 P Device ground SRP 9 I Analog input pin connected to the internal coulomb-counter peripheral for integrating a small voltage between SRP and SRN where SRP is nearest the BAT– connection. SRN 10 I Analog input pin connected to the internal coulomb-counter peripheral for integrating a small voltage between SRP and SRN where SRN is nearest the PACK– connection. P6/TS 11 I Pack thermistor voltage sense (use a 103AT-type thermistor) P5/HDQ 12 I/O Open-drain HDQ Serial communication line (target). If not used, then this pin can be left floating or tied to VSS. P4/SCL 13 I Target I2C serial communication clock input. Use with a 10-kΩ pullup resistor (typical). This pin is also used for LED 4 in the four-LED mode. If not used, then this pin can be left floating or tied to VSS. P3/SDA 14 I/O Open-drain target I2C serial communication data line. Use with a 10-kΩ pullup resistor (typical). This pin is also used for LED 3 in the four-LED mode. If not used, then this pin can be left floating or tied to VSS. Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 3 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 6 Specifications 6.1 Absolute Maximum Ratings Over operating free-air temperature range (unless otherwise noted)(1) MIN MAX UNIT VREGIN Regulator Input Range –0.3 5.5 V VCC Supply Voltage Range –0.3 2.75 V VIOD Open-drain I/O pins (SDA, SCL, HDQ, VEN) –0.3 5.5 V VBAT Bat Input pin –0.3 5.5 V VI Input Voltage range to all other pins (P1, P2, SRP, SRN) –0.3 VCC + 0.3 V 1.5 kV 2 kV Human-body model (HBM), BAT pin ESD Human-body model (HBM), all other pins TA Operating free-air temperature range –40 85 °C TF Functional temperature range –40 100 °C Storage temperature range –65 150 °C Lead temperature (soldering, 10 s) –40 100 °C TSTG (1) Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute Maximum Ratings do not imply functional operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions. If outside the Recommended Operating Conditions but within the Absolute Maximum Ratings, the device may not be fully functional, and this may affect device reliability, functionality, performance, and shorten the device lifetime. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 Charged device model (CDM), per ANSI/ESDA/JEDEC JS-002(2) ±500 UNIT V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions TA =–40°C to 85°C; Typical Values at TA = 25°C CLDO25 = 1.0 µF, and VREGIN = 3.6 V (unless otherwise noted) MIN 4 No operating restrictions NOM MAX UNIT 2.7 4.5 V 2.45 2.7 V VREGIN Supply Voltage CREGIN External input capacitor for internal LDO between REGIN and VSS CLDO25 External output capacitor for internal LDO between VCC and VSS ICC NORMAL operating-mode current Gas Gauge in NORMAL mode, ILOAD > Sleep Current ISLP SLEEP operating-mode current Gas Gauge in SLEEP mode, ILOAD < Sleep Current 84 μA ISLP+ FULLSLEEP operating-mode current Gas Gauge in FULL SLEEP mode, ILOAD < Sleep Current 30 μA VOL Output voltage, low (SCL, SDA, HDQ, VEN) IOL = 3 mA VOH(PP) Output voltage, high IOH = –1 mA VOH(OD) Output voltage, high (SDA, SCL, External pull-up resistor connected to VCC HDQ, VEN) VIL Input voltage, low No FLASH writes Nominal capacitor values specified. Recommend a 10% ceramic X5R type capacitor located close to the device. μF 1 μF 0.47 145 μA 0.4 V VCC – 0.5 V VCC – 0.5 V –0.3 Submit Document Feedback 0.1 0.6 V Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 6.3 Recommended Operating Conditions (continued) TA =–40°C to 85°C; Typical Values at TA = 25°C CLDO25 = 1.0 µF, and VREGIN = 3.6 V (unless otherwise noted) MIN VIH(OD) Input voltage, high (SDA, SCL, HDQ) VA1 NOM MAX UNIT 1.2 6 V Input voltage range (TS) VSS – 0.05 1 V VA2 Input voltage range (BAT) VSS – 0.125 5 V VA3 Input voltage range (SRP, SRN) VSS – 0.125 0.125 V ILKG Input leakage current (I/O pins) tPUCD Power-up communication delay 0.3 μA 250 ms 6.4 Thermal Information BQ34Z100-R2 THERMAL METRIC(1) TSSOP (PW) UNIT 14 PINS RθJA, High K Junction-to-ambient thermal resistance 103.8 RθJC(top) Junction-to-case(top) thermal resistance 31.9 RθJB Junction-to-board thermal resistance 46.6 ψJT Junction-to-top characterization parameter 2.0 ψJB Junction-to-board characterization parameter 45.9 RθJC(bottom) Junction-to-case(bottom) thermal resistance N/A (1) °C/W For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics Application Report, SPRA953. 6.5 Electrical Characteristics: Power-On Reset TA = –40°C to 85°C; Typical Values at TA = 25°C and VREGIN = 3.6 V (unless otherwise noted) PARAMETER TEST CONDITIONS VIT+ Positive-going battery voltage input at REG25 VHYS Power-on reset hysteresis MIN TYP MAX UNIT 2.05 2.20 2.31 V 45 115 185 mV MIN TYP 2.5 6.6 Electrical Characteristics: LDO Regulator TA = 25°C, CLDO25 = 1.0 µF, VREGIN = 3.6 V (unless otherwise noted)(1) PARAMETER VREG25 ISHORT (2) (1) (2) TEST CONDITIONS Regulator output voltage Short Circuit Current Limit 2.7 V ≤ VREGIN ≤ 4.5 V, IOUT ≤ 16 mA TA= –40°C to 85°C 2.3 2.45 V ≤ VREGIN < 2.7 V (low battery), IOUT ≤ 3 mA TA = –40°C to 85°C 2.3 VREG25 = 0 V TA = –40°C to 85°C MAX UNIT 2.7 V 250 mA LDO output current, IOUT, is the sum of internal and external load currents. Specified by design. Not production tested. 6.7 Electrical Characteristics: Internal Temperature Sensor Characteristics TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted) PARAMETER GTEMP TEST CONDITIONS Temperature sensor voltage gain MIN TYP –2 MAX UNIT mV/°C Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 5 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 6.8 Electrical Characteristics: Low-Frequency Oscillator TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted) PARAMETER f(LOSC) t(LSXO) MIN Operating frequency Start-up TYP MAX UNIT 32.768 Frequency error(1) (2) f(LEIO) (1) (2) (3) TEST CONDITIONS kHz TA = 0°C to 60°C –1.5% 0.25% 1.5% TA = –20°C to 70°C –2.5% 0.25% 2.5% TA = –40°C to 85°C –4% 0.25% 4% time(3) 500 μs The frequency drift is included and measured from the trimmed frequency at VCC = 2.5 V, TA = 25°C. The frequency error is measured from 32.768 kHz. The startup time is defined as the time it takes for the oscillator output frequency to be ±3%. 6.9 Electrical Characteristics: High-Frequency Oscillator TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted) PARAMETER TEST CONDITIONS f(OSC) Operating frequency f(EIO) Frequency error(1) (2) TYP MAX UNIT 8.389 MHz TA = 0°C to 60°C –2% 0.38% TA = –20°C to 70°C –3% 0.38% 3% TA = –40°C to 85°C –4.5% 0.38% 4.5% 2.5 5 Start-up time(2) t(SXO) (1) (2) MIN 2% ms The frequency error is measured from 2.097 MHz. The startup time is defined as the time it takes for the oscillator output frequency to be ±3%. 6.10 Electrical Characteristics: Integrating ADC (Coulomb Counter) Characteristics TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted) PARAMETER V(SR) tSR_CONV TEST CONDITIONS Input voltage range, V(SRN) and V(SRP) V(SR) = V(SRN) – V(SRP) Conversion time Single conversion Resolution Input offset INL Integral nonlinearity error ZIN(SR) Effective input resistance(1) (1) (2) Input leakage TYP MAX UNIT 0.125 V 1 14 VOS(SR) Ilkg(SR) MIN –0.125 s 15 bits 10 ±0.007% µV ±0.034% FSR(2) 2.5 MΩ current(1) 0.3 µA Specified by design. Not tested in production. Full-scale reference 6.11 Electrical Characteristics: ADC (Temperature and Cell Measurement) Characteristics TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted) PARAMETER VIN(ADC) tADC_CONV VOS(ADC) ZADC1 ZADC2 6 TEST CONDITIONS Input voltage range MIN TYP 0.05 1 Conversion time Resolution 14 Input offset Effective input resistance 1 (TS)(1) Effective input resistance (BAT)(1) BQ34Z100-R2 not measuring cell voltage BQ34Z100-R2 measuring cell voltage Submit Document Feedback MAX UNIT V 125 ms 15 bits mV 8 MΩ 8 MΩ 100 KΩ Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 6.11 Electrical Characteristics: ADC (Temperature and Cell Measurement) Characteristics (continued) TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted) PARAMETER Ilkg(ADC) (1) TEST CONDITIONS Input leakage MIN TYP current(1) MAX UNIT 0.3 µA Specified by design. Not tested in production. 6.12 Electrical Characteristics: Data Flash Memory Characteristics TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted) PARAMETER tDR ICCPROG MIN TYP cycles(1) Years 20,000 Cycles Word programming time(1) Flash-write supply MAX UNIT 10 Flash-programming write tWORDPROG (1) TEST CONDITIONS Data retention(1) current(1) 5 2 ms 10 mA Specified by design. Not tested in production. 6.13 Timing Requirements: HDQ Communication TA = –40°C to 85°C, 2.45 V < VREGIN = VBAT < 5.5 V; typical values at TA = 25°C and VREGIN = VBAT = 3.6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN NOM MAX UNIT t(CYCH) Cycle time, host to BQ34Z100-R2 190 μs t(CYCD) Cycle time, BQ34Z100-R2 to host 190 t(HW1) Host sends 1 to BQ34Z100-R2 0.5 t(DW1) BQ34Z100-R2 sends 1 to host t(HW0) Host sends 0 to BQ34Z100-R2 t(DW0) BQ34Z100-R2 sends 0 to host t(RSPS) Response time, BQ34Z100-R2 to host t(B) Break time 190 μs t(BR) Break recovery time 40 μs t(RISE) HDQ line rising time to logic 1 (1.2 V) t(RST) HDQ Reset 250 μs 50 μs 32 50 μs 86 145 μs 80 145 μs 190 950 μs 1.8 205 950 ns 2.2 s Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 7 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 1.2V t(BR) t(B) t(RISE) (b) HDQ line rise time (a) Break and Break Recovery t(DW1) t(HW1) t(DW0) t(CYCD) t(HW0) t(CYCH) (d) Gauge Transmitted Bit (c) Host Transmitted Bit 1-bit R/W 7-bit address Break 8-bit data t(RSPS) (e) Gauge to Host Response Figure 6-1. Timing Diagrams 6.14 Timing Requirements: I2C-Compatible Interface TA = –40°C to 85°C, 2.45 V < VREGIN = VBAT < 5.5 V; typical values at TA = 25°C and VREGIN = VBAT = 3.6 V (unless otherwise noted) PARAMETER tr SCL/SDA rise time tf SCL/SDA fall time tw(H) SCL pulse width (high) tw(L) tsu(STA) TEST CONDITIONS MIN NOM MAX UNIT 300 ns 300 ns 600 ns SCL pulse width (low) 1.3 μs Setup for repeated start 600 ns td(STA) Start to first falling edge of SCL 600 ns tsu(DAT) Data setup time 100 ns th(DAT) Data hold time 0 ns tsu(STOP) Setup time for stop 600 ns tBUF Bus free time between stop and start fSCL Clock frequency 66 μs 400 tSU(STA) tw(H) tf tw(L) tr kHz t(BUF) SCL SDA td(STA) tsu(STOP) tf tr th(DAT) tsu(DAT) REPEATED START STOP START Figure 6-2. I2C-Compatible Interface Timing Diagrams 8 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 6.15 Typical Characteristics 15 200 160 120 Voltage Error (mV) Total Battery Voltage Voltage Error (mV) 10 5 0 -5 -10 80 40 0 -40 -80 -120 -15 -40qC -20qC -20 2800 3000 25qC 65qC 3200 -200 25.2 3400 3600 3800 Battery Voltage (mV) 4000 4200 2 20 1 30.6 32.4 34.2 Battery Voltage (V) 36 37.8 39.6 D002 0 Temperature Error (qC) 15 Current Error (mA) 28.8 85°C Figure 6-4. V(Err) Across VIN (0 mA) 9 s D001 25 10 5 0 -5 -10 -15 -25 -3000 27 25°C 65°C 4400 Figure 6-3. V(Err) Across VIN (0 mA) -20 -40°C -20°C -160 85qC -1 -2 -3 -4 -5 -6 -7 -40qC -20qC -2000 25qC 65qC -1000 85qC 0 1000 Current (mA) -8 2000 3000 -9 -40 -20 D003 Figure 6-5. I(Err) 0 20 40 Temperature (qC) 60 80 100 D004 Figure 6-6. T(Err) Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 9 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 7 Functional Block Diagram 10 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 BQ34Z100-R2 www.ti.com SLUSF37 – DECEMBER 2022 8 Application and Implementation Note Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes, as well as validating and testing their design implementation to confirm system functionality. 8.1 Application Information The BQ34Z100-R2 is a flexible gas gauge device with many options. The major configuration choices comprise the battery chemistry, digital interface, and display. 8.2 Typical Applications Figure 8-1 is a simplified diagram of the main features of the BQ34Z100-R2. Specific implementations detailing the main configuration options are shown later in this section. Figure 8-1. BQ34Z100-R2 Simplified Implementation Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 11 12 TB3 2 3 BAT - 1 PACK - BAT + GND AGND REGIN AGND R30 .010 75ppm C2 0.1uF AGND R5 Submit Document Feedback Product Folder Links: BQ34Z100-R2 100 R6 100 1K R1 C6 C5 LED Display SW1 P1 U2 0.1uF C8 REG25 REGIN CE BAT P1 VEN P2 1uF C7 8 9 10 11 12 13 14 0.1uF VSS SRP SRN P6/TS P5/HDQ P4/SCL P3/SDA BQ34Z100PW 0.1uF 7 6 5 4 2 3 P2 C1 0.1uF 1 AGND LED0 LED1 LED2 LED3 LED4 REGIN R14 100 GND D3 QTLP610C-4 GRN R12 R11 R10 D11 QTLP610C-4 GRN D12 QTLP610C-4 GRN R9 R8 P1 470 470 470 470 470 GND GND GND J9 4 7 6 5 4 3 2 1 1 2 3 U3 GND GND QD QC QB QA B A CLK ~CLR QE QF QG QH VCC SN74HC164PW J10 8 9 10 11 12 13 14 REGIN HDQ or ALERT GND SDA SCLor ALERT 1 2 4 3 P2 C3 0.1uF Copyright © 2016 , Texas Instruments Incorporated R13 100 AZ23C5V6-7 D2 GND R55 100 R53 100 D10 QTLP610C-4 GRN D9 QTLP610C-4 GRN RT1 10K D1 AZ23C5V6-7 R56 100 R54 100 GND SLUSF37 – DECEMBER 2022 BQ34Z100-R2 www.ti.com The BQ34Z100-R2 can be used to provide a single Li-ion cell gas gauge with a 5-bar LED display. Figure 8-2. 1-Cell Li-ion and 5-LED Display The BQ34Z100-R2 can also be used to provide a gas gauge for a multi-cell Li-ion battery with a 5-bar LED display. Copyright © 2023 Texas Instruments Incorporated SH1 SH2 Copyright © 2023 Texas Instruments Incorporated Product Folder Links: BQ34Z100-R2 SH1 SH2 GND AGND R30 .010 75ppm * * Optimize for required voltage and current 3 PACK TB3 1 2 BAT + BAT - 10k * R3 R1 Q3 2N7002 0.1uF C2 AGND GND BZT52C5V6T R7 D AGND 3 REGIN 16.5 K .1% 25PPM * VOLTAGE DIVIDER .1% 25PPM * D7 Q5 BSS84 R4 165K * G 1 R2 100K * 2 S AGND R6 R5 LED Display SW1 3300 pF C1 GND Q4 2N7002 100 100 P2 1k R15 P1 C6 C5 REG25 2 1 VEN P2 0.1uF C8 REG25 REGIN CE BAT P1 0.1uF 7 6 5 4 3 U2 1uF 14 13 C7 8 9 10 11 12 0.1uF VSS SRP SRN P6/TS P5/HDQ P4/SCL P3/SDA BQ34Z100PW AGND REG25 RT1 10K LED0 LED1 LED2 LED3 LED4 REGIN D1 GND GND R11 R12 QTLP610C-4 GRN D3 D12 QTLP610C-4 GRN R9 R10 D11 QTLP610C-4 GRN R8 P1 AZ23C5V6-7 D2 D10 QTLP610C-4 GRN D9 QTLP610C-4 GRN R14 100 R13 100 1k 1k 1k 1k 1k GND 7 6 5 4 3 2 1 GND QD QC QB QA B A U3 CLK ~CLR QE QF QG QH VCC SN74HC164PW 8 9 10 11 12 13 14 GND GND J9 4 3 REGIN 1 2 P2 C3 J10 0.1uF GND GND HDQ or ALERT GND SDA 1 SCLor ALERT 4 3 2 Copyright © 2016, Texas Instruments Incorporated R55 100 R56 100 AZ23C5V6-7 R53 100 R54 100 www.ti.com SLUSF37 – DECEMBER 2022 BQ34Z100-R2 Figure 8-3. Multi-Cell and 5-LED Display Submit Document Feedback 13 BAT - BAT + PACK - TB3 1 2 3 GND R30 .010 75ppm AGND Submit Document Feedback Product Folder Links: BQ34Z100-R2 R12 R18 R20 R22 R23 R24 D13 QTLP610C-3 YEL D14 QTLP610C-3 YEL D15 QTLP610C-4 GRN D16 QTLP610C-4 GRN D17 QTLP610C-4 GRN D6 6 TP4 U3 U1 CLK ~CLR QE QF QG QH VCC GND QD QC QB QA B A CLK ~CLR QE QF QG QH VCC SN74HC164PW GND QD QC QB QA B A 0.1uF TP6 TP5 8 9 11 TP7 TP8 GND C5 REGIN 0.1uF C8 REG25 REGIN CE BAT P1 VEN 1uF 8 9 10 11 12 13 14 0.1uF C7 VSS SRP SRN P6/TS P5/HDQ P4/SCL P3/SDA U2 BQ34Z1X0 PW P2 0.1uF 7 6 5 4 3 2 1 Optimize for required LED power dissipation AGND QTLP610C-4 GRN GND R32 1M Q1 2SK3019 LED A Open for I2C J1 2 I2C pullups normally implemented in the host. Duplicated here since EV2300 does not provide C6 R38 1k REG25 GND P2 100 R6 0.1uF 100 C4 P1 P2 LED Display R5 C3 AGND 0.1uF SW1 GND P4 LED B GND GND R33 1M Q2 2SK3019 D8 1.5K R15 1uF C1 R7 2M 2SK3019 Q7 GND P3 3 GND D3 R16 1.5K R21 220K D4 R17 1.5K GND R29 10k LED C Q6 2SK3019 RT1 10K REGIN P2 REG25 A B P1 P2 P3 P4 D D5 R19 1.5K C R14 100 GND 1 2 3 4 5 6 7 8 9 10 J6 EXT A B C D 100 R13 AZ23C5V6-7 D2 GND LED CONFIGURATION OPTIONS ALERT CONFIGURATION 200 R25 D1 AZ23C5V6-7 R34 100 100 R36 1 J7 4 3 1 2 2 3 TB1 J4 GND ALERT GND HDQ GND SCL 1 SDA 4 3 2 Fiducial Marks GND GND GND Copyright © 2016 , Texas Instruments Incorporated REGIN LED D J3 R31 10k R37 100 R35 100 BQ34Z100-R2 4 3 48V 10 12 13 14 8 9 10 11 12 13 14 >5V >5V