Datasheet LT8491 (Analog Devices) - 80
| Fabricante | Analog Devices |
| Descripción | High Voltage Buck-Boost Battery Charge Controller with Maximum Power Point Tracking (MPPT) and I2C |
| Páginas / Página | 82 / 80 — TYPICAL APPLICATIONS. VALUE. 2 C REG. ADDR. I REGISTER NAME. 56.8V … |
| Formato / tamaño de archivo | PDF / 2.1 Mb |
| Idioma del documento | Inglés |
TYPICAL APPLICATIONS. VALUE. 2 C REG. ADDR. I REGISTER NAME. 56.8V Lead-Acid Battery Charger (Four 12V Batteries in Series)
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LT8491
TYPICAL APPLICATIONS
(5mΩ) (97.6kΩ) (10mΩ) (137.6kΩ) (1MΩ) (20kΩ) (5.92kΩ) (3.09kΩ) (133kΩ) (97.2%) (–20°C) (50°C) → → → → → → → → → → → → 1b
VALUE
111b LOAD 56.8V FLOODED LEAD ACID
2 C REG ADDR
0x28 0x01FA 0x2A 0x2620 0x2C 0x03E8 0x2E 0x35C0 0x30 0x2710 0x32 0x07D0 0x34 0x0250 0x36 0x0144 0x38 0x03AE 0x3B 0x7A 0x40 0xEC 0x41 0x32 0x42 0x00 0x43 0x00 0x44 0x00 0x45 0x00 + – 0x49 0x4D ENSE1
I REGISTER NAME
CFG_RS CFG_RIMON_OUT CFG_RSENSE2 CFG_RDACO CFG_RFBOUT1 CFG_RFBOUT2 CFG_RDACI CFG_RFBIN2 CFG_RFBIN1 CFG_VS3_25C CFG_TBAT_MIN CFG_TBAT_MAX CFG_TMR_S0 CFG_TMR_S1 CFG_TMR_S2 CFG_TMR_S3 CFG_RSTRT_IN_S3 [0] CFG_CHRG_MISC [2:0] 100Ω 8491 TA02 1M 20k C OUT1 220µF 100nF C CSPOUT 100nF 115k 1µF C OUT2 4.7µF ×2 10k AT 25°C ß = 3380 NTC 10Ω 18.2k 0.1µF ½W 10mΩ 4.7µF 470nF 200k C OUT4 1µF 22.6k C OUT3 4.7µF ×2 CC DD ´ TG2 DD AV FBOR V DD AV ECON EXTV FBOUT FBOW LDO33 SWEN EV CC CSPOUT CSNOUT SWENO SRVO_IIN 10k 10k D B2 GAT TEMPSENSE SRVO_FBIN SRVO_IOUT SCL BOOST2 SRVO_FBOUT M4 220nF SDA TO MASTER SW2 M3 DD BG2 AV 6mΩ GND 1.3k 19.1k L1 CA 15µH : 2.2µF, 100V, AVX 12101C225KAT2A IN4 : 4.7µF, 100V, TDK C4532X7S2A475M230KB 10Ω 10Ω : 220µF, 100V, UNITED CHEMI-CON EKZE101ELL221MK255 10nF , C LT8491 : CENTRAL SEMI CMMR1U-02 OUT3 : 100nF, 50V, AVX 08055C10 M2 STATUS B2 OUT1 IN3 , C : 1µF, 100V AVX 12101C105KAT2A DS , D , C , C 10nF CSN 549Ω M1: INFINEON BSC046N10NS M2: INFINEON BSC109N10NS M3, M4: INFINEON BSC057N08NS L1: 15µH COILCRAFT SER2915H-153KL, 15µH WURTH 744 364 115 00 D B1 C IN1 C IN2 C OUT2 C OUT4 C CSPOUT CLKOUT CSP
56.8V Lead-Acid Battery Charger (Four 12V Batteries in Series)
53.6k 68nF BG1 CLKDET SW1 ´ ) AT 25°C M1 220nF S2 D B1 EV CC SYNC BOOST1 CC 220pF ) AT 25°C C IN3 2.2µF ×2 CC GAT S3 TG1 V C CSNIN CSPIN V IN GATEV INTV MODE SHDN VINR FBIR FBIN FBIW RT SS IIR IMON_IN IOW IOR IMON_OUT ) 11.3k 10nF MAX 3.01k ½W 5mΩ 10Ω 1.05k 470nF 4Ω ×2 97.6k 4.7µF ´ SHARP NT-175UC1 175W, SHARP NU-U235F3 235W 32.4k C IN2 2.2µF ×2 C IN4 2.2µF CC 1µF 8.2nF C IN1 220µF GATEV 21k 110k 35.7k 4.87k + – 301k 100nF 2 C ADDRESS: 0x10 10nF I 56.8V STAGE 2 (ABSORPTION) CHARGE VOLTAGE (V 55.2V STAGE 3 (FLOAT) CHARGE VOLTAGE (V 5A CHARGING CURRENT LIMIT 1.25A TRICKLE CURRENT LIMIT 11.4A INPUT CURRENT LIMIT 80V MAXIMUM PANEL VOLTAGE (V NO TIMER LIMITS TEMPERATURE COMPENSATION ENABLED –20°C TO 50°C BATTERY TEMPERATURE RANGE 145kHz SWITCHING FREQUENCY EXAMPLE SOLAR PANEL: 80V 196k 8.06k < SOLAR PANEL V OC 133k 3.09k Rev. 0 80 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Overview I2C Serial Interface I2C: START and STOP Conditions I2C: ACKnowledge I2C: Chip Addressing I2C: Clock Stretching I2C: Data Transfer Transactions I2C: Powering the Interface I2C Data Data: Memory Regions Data: Bytes, Words and Long Words Data: Min/Max Register Values Data: Access Permissions Startup Sequence Battery Charging Algorithm Stage 0: Trickle Charging Stage 1: Full Constant Current Stage 2: Constant Voltage Stage 3: (Optional) Reduced Constant Voltage Done Charging Charging Faults Maximum Power Point Tracking Telemetry Operation Telemetry: Configuration Settings Telemetry: Acquisition CRC Operation EEPROM Operation EEPROM: Startup EEPROM: Reading EEPROM: Writing I2C Register Map I2C Register Descriptions Telemetry Registers TELE_TBAT TELE_POUT TELE_PIN TELE_EFF TELE_IOUT TELE_IIN TELE_VBAT TELE_VIN TELE_VINR Status Registers STAT_CHARGER STAT_SYSTEM STAT_SUPPLY STAT_TSx_REMAIN STAT_CHRG_FAULTS STAT_VERSION STAT_BOOT_CRC STAT_CFG_CRC Control The EEPROM CTRL_WRT_TO_BOOT CTRL_EE_WRT_EN Control Other Functions CTRL_HALT_STARTUP CTRL_CHRG_EN CTRL_RESTART_CHIP CTRL_RESET_FLAG CTRL_UPDATE_TELEM Configure The Telemetry CFG_RSENSE1 CFG_RIMON_OUT CFG_RSENSE2 CFG_RDACO CFG_RFBOUT1 CFG_RFBOUT2 CFG_RDACI CFG_RFBIN2 CFG_RFBIN1 Configure Initial Charger Enable CFG_INIT_CHRG_EN Configure VBAT for Stages 0, 1 and 3 CFG_VS3_25C CFG_UV_S0 CFG_S0_UV CFG_S0_S1 CFG_S1_S0 Configure Temperature Fault Limits CFG_TBAT_MIN CFG_TBAT_MAX Configure Stage Timeout Limits CFG_TMR_S0 CFG_TMR_S1 CFG_TMR_S2 CFG_TMR_S3 Configure Automatic Restart CFG_RSTRT_IN_FLT CFG_RSTRT_IN_DONEA CFG_RSTRT_IN_DONEB CFG_RSTRT_IN_S3 Configure Charge Termination CFG_TERMINATE Configure Misc. CFG_SCAN_RATE_LP CFG_SCAN_RATE CFG_CHRG_MISC Configure Temperature Compensation CFG_TC3, CFG_TC2, CFG_TC1 Configure User Code CFG_USER_CODE Manufacturer Data MFR_DATA1 MFR_DATA2 MFR_DATA3 Applications Information Hardware Configuration HW Config: Input Voltage Sensing and Modulation HW Config: VINR Pin Connections HW Config: Solar Panel Powered Charging HW Config: DC Supply Powered Charging HW Config: VBAT in Stage 2 (VS2) HW Config: Input Current Sense and Limit HW Config: Output Current Sense and Limit HW Config: Current Sense Filtering HW Config: Battery Temperature and Disconnect Sensing HW Config: SHDN Pin Connections HW Config: MODE Pin – Current Conduction Mode HW Config: Driving an LED with the STATUS Pin HW Config: I2C Chip Address Pin In-Situ Battery Charging Hot-Plugging Considerations STATUS Indicator Pin Lithium-Ion Battery Charging Lead-Acid Battery Charging Optional Features Optional: Low Power Mode Optional: Output Feedback Resistor Disconnect Optional: EXTVCC Disconnect Optional: Remote Battery Voltage Sensing Optional: DC Supply Detection Circuit Board Layout Considerations Design Example Typical Applications Package Description Typical Application Related Parts
TYPICAL APPLICATIONS
(5mΩ) (97.6kΩ) (10mΩ) (137.6kΩ) (1MΩ) (20kΩ) (5.92kΩ) (3.09kΩ) (133kΩ) (97.2%) (–20°C) (50°C) → → → → → → → → → → → → 1b
VALUE
111b LOAD 56.8V FLOODED LEAD ACID
2 C REG ADDR
0x28 0x01FA 0x2A 0x2620 0x2C 0x03E8 0x2E 0x35C0 0x30 0x2710 0x32 0x07D0 0x34 0x0250 0x36 0x0144 0x38 0x03AE 0x3B 0x7A 0x40 0xEC 0x41 0x32 0x42 0x00 0x43 0x00 0x44 0x00 0x45 0x00 + – 0x49 0x4D ENSE1
I REGISTER NAME
CFG_RS CFG_RIMON_OUT CFG_RSENSE2 CFG_RDACO CFG_RFBOUT1 CFG_RFBOUT2 CFG_RDACI CFG_RFBIN2 CFG_RFBIN1 CFG_VS3_25C CFG_TBAT_MIN CFG_TBAT_MAX CFG_TMR_S0 CFG_TMR_S1 CFG_TMR_S2 CFG_TMR_S3 CFG_RSTRT_IN_S3 [0] CFG_CHRG_MISC [2:0] 100Ω 8491 TA02 1M 20k C OUT1 220µF 100nF C CSPOUT 100nF 115k 1µF C OUT2 4.7µF ×2 10k AT 25°C ß = 3380 NTC 10Ω 18.2k 0.1µF ½W 10mΩ 4.7µF 470nF 200k C OUT4 1µF 22.6k C OUT3 4.7µF ×2 CC DD ´ TG2 DD AV FBOR V DD AV ECON EXTV FBOUT FBOW LDO33 SWEN EV CC CSPOUT CSNOUT SWENO SRVO_IIN 10k 10k D B2 GAT TEMPSENSE SRVO_FBIN SRVO_IOUT SCL BOOST2 SRVO_FBOUT M4 220nF SDA TO MASTER SW2 M3 DD BG2 AV 6mΩ GND 1.3k 19.1k L1 CA 15µH : 2.2µF, 100V, AVX 12101C225KAT2A IN4 : 4.7µF, 100V, TDK C4532X7S2A475M230KB 10Ω 10Ω : 220µF, 100V, UNITED CHEMI-CON EKZE101ELL221MK255 10nF , C LT8491 : CENTRAL SEMI CMMR1U-02 OUT3 : 100nF, 50V, AVX 08055C10 M2 STATUS B2 OUT1 IN3 , C : 1µF, 100V AVX 12101C105KAT2A DS , D , C , C 10nF CSN 549Ω M1: INFINEON BSC046N10NS M2: INFINEON BSC109N10NS M3, M4: INFINEON BSC057N08NS L1: 15µH COILCRAFT SER2915H-153KL, 15µH WURTH 744 364 115 00 D B1 C IN1 C IN2 C OUT2 C OUT4 C CSPOUT CLKOUT CSP
56.8V Lead-Acid Battery Charger (Four 12V Batteries in Series)
53.6k 68nF BG1 CLKDET SW1 ´ ) AT 25°C M1 220nF S2 D B1 EV CC SYNC BOOST1 CC 220pF ) AT 25°C C IN3 2.2µF ×2 CC GAT S3 TG1 V C CSNIN CSPIN V IN GATEV INTV MODE SHDN VINR FBIR FBIN FBIW RT SS IIR IMON_IN IOW IOR IMON_OUT ) 11.3k 10nF MAX 3.01k ½W 5mΩ 10Ω 1.05k 470nF 4Ω ×2 97.6k 4.7µF ´ SHARP NT-175UC1 175W, SHARP NU-U235F3 235W 32.4k C IN2 2.2µF ×2 C IN4 2.2µF CC 1µF 8.2nF C IN1 220µF GATEV 21k 110k 35.7k 4.87k + – 301k 100nF 2 C ADDRESS: 0x10 10nF I 56.8V STAGE 2 (ABSORPTION) CHARGE VOLTAGE (V 55.2V STAGE 3 (FLOAT) CHARGE VOLTAGE (V 5A CHARGING CURRENT LIMIT 1.25A TRICKLE CURRENT LIMIT 11.4A INPUT CURRENT LIMIT 80V MAXIMUM PANEL VOLTAGE (V NO TIMER LIMITS TEMPERATURE COMPENSATION ENABLED –20°C TO 50°C BATTERY TEMPERATURE RANGE 145kHz SWITCHING FREQUENCY EXAMPLE SOLAR PANEL: 80V 196k 8.06k < SOLAR PANEL V OC 133k 3.09k Rev. 0 80 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Overview I2C Serial Interface I2C: START and STOP Conditions I2C: ACKnowledge I2C: Chip Addressing I2C: Clock Stretching I2C: Data Transfer Transactions I2C: Powering the Interface I2C Data Data: Memory Regions Data: Bytes, Words and Long Words Data: Min/Max Register Values Data: Access Permissions Startup Sequence Battery Charging Algorithm Stage 0: Trickle Charging Stage 1: Full Constant Current Stage 2: Constant Voltage Stage 3: (Optional) Reduced Constant Voltage Done Charging Charging Faults Maximum Power Point Tracking Telemetry Operation Telemetry: Configuration Settings Telemetry: Acquisition CRC Operation EEPROM Operation EEPROM: Startup EEPROM: Reading EEPROM: Writing I2C Register Map I2C Register Descriptions Telemetry Registers TELE_TBAT TELE_POUT TELE_PIN TELE_EFF TELE_IOUT TELE_IIN TELE_VBAT TELE_VIN TELE_VINR Status Registers STAT_CHARGER STAT_SYSTEM STAT_SUPPLY STAT_TSx_REMAIN STAT_CHRG_FAULTS STAT_VERSION STAT_BOOT_CRC STAT_CFG_CRC Control The EEPROM CTRL_WRT_TO_BOOT CTRL_EE_WRT_EN Control Other Functions CTRL_HALT_STARTUP CTRL_CHRG_EN CTRL_RESTART_CHIP CTRL_RESET_FLAG CTRL_UPDATE_TELEM Configure The Telemetry CFG_RSENSE1 CFG_RIMON_OUT CFG_RSENSE2 CFG_RDACO CFG_RFBOUT1 CFG_RFBOUT2 CFG_RDACI CFG_RFBIN2 CFG_RFBIN1 Configure Initial Charger Enable CFG_INIT_CHRG_EN Configure VBAT for Stages 0, 1 and 3 CFG_VS3_25C CFG_UV_S0 CFG_S0_UV CFG_S0_S1 CFG_S1_S0 Configure Temperature Fault Limits CFG_TBAT_MIN CFG_TBAT_MAX Configure Stage Timeout Limits CFG_TMR_S0 CFG_TMR_S1 CFG_TMR_S2 CFG_TMR_S3 Configure Automatic Restart CFG_RSTRT_IN_FLT CFG_RSTRT_IN_DONEA CFG_RSTRT_IN_DONEB CFG_RSTRT_IN_S3 Configure Charge Termination CFG_TERMINATE Configure Misc. CFG_SCAN_RATE_LP CFG_SCAN_RATE CFG_CHRG_MISC Configure Temperature Compensation CFG_TC3, CFG_TC2, CFG_TC1 Configure User Code CFG_USER_CODE Manufacturer Data MFR_DATA1 MFR_DATA2 MFR_DATA3 Applications Information Hardware Configuration HW Config: Input Voltage Sensing and Modulation HW Config: VINR Pin Connections HW Config: Solar Panel Powered Charging HW Config: DC Supply Powered Charging HW Config: VBAT in Stage 2 (VS2) HW Config: Input Current Sense and Limit HW Config: Output Current Sense and Limit HW Config: Current Sense Filtering HW Config: Battery Temperature and Disconnect Sensing HW Config: SHDN Pin Connections HW Config: MODE Pin – Current Conduction Mode HW Config: Driving an LED with the STATUS Pin HW Config: I2C Chip Address Pin In-Situ Battery Charging Hot-Plugging Considerations STATUS Indicator Pin Lithium-Ion Battery Charging Lead-Acid Battery Charging Optional Features Optional: Low Power Mode Optional: Output Feedback Resistor Disconnect Optional: EXTVCC Disconnect Optional: Remote Battery Voltage Sensing Optional: DC Supply Detection Circuit Board Layout Considerations Design Example Typical Applications Package Description Typical Application Related Parts