Datasheet LTC7132 (Analog Devices) - 4

link to page 44 link to page 44 LTC7132
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
SV + – TOP VIEW IN, PVIN0, PVIN1, IIN , IIN .. –0.3V to 20V (V + + – + IN–IIN ), (IIN –IIN ) .. –0.3V to 0.3V – + + – T0 T1 T BOOST0, BOOST1 .. –0.3V to 26V FAUL FAUL ALER V OUT0_CFG SDA SCL SYNC SGND TSNS0 TSNS1 I SENSE0 I SENSE0 I TH0 I THR0 I SENSE1 I SENSE1 V SENSE0 Switch Transient Voltage (SW0, SW1) .. –5V to 26V V I + – + – A SENSE0– SENSE0 , ISENSE0 , ISENSE1 , ISENSE1 , IIN– V + + B IIN+ SENSE0 , VSENSE1 .. –0.3V to 6V NC NC PGOOD0 BOOST0 V – – C SW0 RUN0 SENSE0 , VSENSE1 ... –0.3V to 0.3V SVIN EXTVCC RUN1 (BOOST0-SW0), (BOOST1-SW1) ... –0.3V to 6V D PGND ASEL0 WP ITH1 VSENSE1– FREQ_CFG EXTV E INTVCC ASEL1 CC, INTVCC... –0.3V to 6V I SHARE_CLK THR1 NC PGOOD1 PHASE_CFG PGOOD0, PGOOD1 .. –0.3V to 3.6V F BOOST1 VOUT1_CFG VDD25 VDD33 NC VSENSE1+ SW1 RUN0, RUN1, SDA, SCL, ALERT .. –0.3V to 5.5V G PVIN0 PGND ASEL0, ASEL1, V H OUT0_CFG0, VOUT1_CFG, FREQ_CFG, PHASE_CFG .. –0.3V to 2.75V J PVIN1 PGND FAULT0, FAULT1, SHARE_CLK, WP, SYNC –0.3V to 3.6V K TSNS0, TSNS1 .. –0.3V to 2.2V L I M TH0, ITH1, ITHR0, ITHR1 .. –0.3V to 2.7V Operating Junction Temperature Range N SW1 SW0 (Notes 2, 17, 18) ...–40°C to 125°C P Storage Temperature Range .. –40°C to 125°C 1 2 3 4 5 6 7 8 9 10 BGA PACKAGE *See Derating EEPROM Retention at Temperature in Applications 140-LEAD (11.25mm × 9.00mm × 2.22mm) Information section for junction temperatures in excess of 125°C. TJMAX = 125°C, θJA = 14.5°C/W, θJC = 1.1°C/W θJA DERIVED FROM LTC7132 DEMO BOARD WEIGHT = 0.52g NC (PINS B2, B4, E8, E9, F6) ARE NO CONNECT, PINS ARE NOT CONNECTED INTERNALLY. FLOAT OR GROUND THESE PINS
ORDER INFORMATION PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (SEE NOTE 2)
LTC7132EY#PBF SAC305 (RoHS) LTC7132Y e1 BGA 4 –40°C to 125°C LTC7132IY#PBF • Contact the factory for parts specified with wider operating temperature • Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609. Procedures • LGA and BGA Package and Tray Drawings Rev 0 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Overview Main Control Loop EEPROM Power-Up and Initialization Soft-Start Time-Based Sequencing Voltage-Based Sequencing Shutdown Light-Load Current Operation Switching Frequency and Phase PWM Loop Compensation Output Voltage Sensing INTVCC/EXTVCC Power Output Current Sensing and Sub-Milliohm DCR Current Sensing Input Current Sensing PolyPhase Load Sharing External/Internal Temperature Sense RCONFIG (Resistor Configuration) Pins Fault Detection and Handling Status Registers and ALERT Masking Mapping Faults to FAULT Pins Power Good Pins CRC Protection Serial Interface Communication Protection Device Addressing Responses to VOUT and IIN/IOUT Faults Output Overvoltage Fault Response Output Undervoltage Response Peak Output Overcurrent Fault Response Responses to Timing Faults Responses to VIN OV Faults Responses to OT/UT Faults Internal Overtemperature Fault Response External Overtemperature and Undertemperature Fault Response Responses to Input Overcurrent and Output Undercurrent Faults Responses to External Faults Fault Logging Bus Timeout Protection Similarity Between PMBus, SMBus and I2C 2-Wire Interface PMBus Serial Digital Interface PMBus Command Summary PMBus Commands *Data Format Applications Information Current Limit Programming ISENSE0± and ISENSE1± Pins Inductor DCR Sensing Inductor Value Calculation Inductor Core Selection Low Value Resistor Current Sensing Slope Compensation and Inductor Peak Current Variable Delay Time, Soft-Start and Output Voltage Ramping Digital Servo Mode Soft Off (Sequenced Off) INTVCC/EXTVCC Power Topside MOSFET Driver Supply (CB, DB) Undervoltage Lockout CIN and COUT Selection Fault INDICATION Open-Drain Pins Phase-Locked Loop and Frequency Synchronization Minimum On-Time Considerations External Temperature Sense Input Current Sense Amplifier External Resistor Configuration Pins (RCONFIG) Voltage Selection Frequency Selection Phase Selection Address Selection Using RCONFIG Efficiency Considerations Thermal Considerations Programmable Loop Compensation Checking Transient Response PolyPhase Configuration PC Board Layout Checklist PC Board Layout Debugging Design Example Additional Design Checks Connecting the USB to I2C/SMBus/PMBus Controller to the LTC7132 in System LTpowerPlay: An Interactive GUI for Digital Power PMBus Communication and Command Processing PMBus Command Details Addressing and Write Protect General Configuration Commands On/Off/Margin PWM Configuration Voltage Input Voltage and Limits Output Voltage and Limits Output Current and Limits Input Current and Limits Temperature External Temperature Calibration Timing Timing—On Sequence/Ramp Timing—Off Sequence/Ramp Precondition for Restart Fault Response Fault Responses All Faults Fault Responses Input Voltage Fault Responses Output Voltage Fault Responses Output Current Fault Responses IC Temperature Fault Responses External Temperature Fault Sharing Fault Sharing Propagation Fault Sharing Response Scratchpad Identification Fault Warning and Status Telemetry NVM Memory Commands Store/Restore Fault Logging Block Memory Write/Read Typical Applications Package Description Typical Application Related Parts