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TPS25990 2.9 V – 16 V, 0.79-mΩ, 60-A Stackable eFuse with PMBus Digital Telemetry
SLVSGG4B
september 2022 – june 2023
TPS25990
PRODUCTION DATA
CONTENTS
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TPS25990 2.9 V – 16 V, 0.79-mΩ, 60-A Stackable eFuse with PMBus Digital Telemetry
1
1
Features
2
Applications
3
Description
4
Revision History
5
Description (continued)
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Logic Interface DC Characteristics
7.7
Telemetry
7.8
PMBus Interface Timing Characteristics
7.9
External EEPROM Interface Timing Characteristics
7.10
Timing Requirements
7.11
Switching Characteristics
7.12
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Undervoltage Protection
8.3.2
Insertion Delay
8.3.3
Overvoltage Protection
8.3.4
Inrush Current, Overcurrent, and Short-Circuit Protection
8.3.4.1
Slew rate (dVdt) and Inrush Current Control
8.3.4.1.1
Start-Up Timeout
8.3.4.2
Steady-State Overcurrent Protection (Circuit-Breaker)
8.3.4.3
Active Current Limiting During Start-Up
8.3.4.4
Short-Circuit Protection
8.3.5
Single Point Failure Mitigation
8.3.5.1
IMON Pin Single Point Failure
8.3.5.2
ILIM Pin Single Point Failure
8.3.5.3
IREF Pin Single Point Failure
8.3.6
Analog Load Current Monitor (IMON)
8.3.7
Overtemperature Protection
8.3.8
Analog Junction Temperature Monitor (TEMP)
8.3.9
FET Health Monitoring
8.3.10
General Purpose Digital Input/Output Pins
8.3.10.1
Fault Response and Indication (FLT)
8.3.10.2
Power Good Indication (PG)
8.3.10.3
Parallel Device Synchronization (SWEN)
8.3.11
Stacking Multiple eFuses for Unlimited Scalability
8.3.11.1
Current Balancing During Start-Up
8.3.12
General Purpose Comparators
8.3.13
Output Discharge
8.3.14
PMBus® Digital Interface
8.3.14.1
PMBus® Device Addressing
8.3.14.2
SMBus Protocol
8.3.14.3
SMBus™ Message Formats
8.3.14.4
Packet Error Checking
8.3.14.5
Group Commands
8.3.14.6
SMBus™ Alert Response Address (ARA)
8.3.14.7
PMBus® Commands
8.3.14.7.1
Detailed Descriptions of PMBus® Commands
8.3.14.7.1.1
OPERATION (01h, Read/Write Byte)
8.3.14.7.1.2
CLEAR_FAULTS (03h, Send Byte)
8.3.14.7.1.3
RESTORE_FACTORY_DEFAULTS (12h, Send Byte)
8.3.14.7.1.4
STORE_USER_ALL (15h, Send Byte)
8.3.14.7.1.5
RESTORE_USER_ALL (16h, Send Byte)
8.3.14.7.1.6
BB_ERASE (F5h, Send Byte)
8.3.14.7.1.7
FETCH_BB_EEPROM (F6h, Send Byte)
8.3.14.7.1.8
POWER_CYCLE (D9h, Send Byte)
8.3.14.7.1.9
MFR_WRITE_PROTECT (F8h, Read/Write Byte)
8.3.14.7.1.10
CAPABILITY (19h, Read Byte)
8.3.14.7.1.11
STATUS_BYTE (78h, Read Byte)
8.3.14.7.1.12
STATUS_WORD (79h, Read Word)
8.3.14.7.1.13
STATUS_OUT (7Ah, Read Byte)
8.3.14.7.1.14
STATUS_IOUT (7Bh, Read Byte)
8.3.14.7.1.15
STATUS_INPUT (7Ch, Read Byte)
8.3.14.7.1.16
STATUS_TEMP (7Dh, Read Byte)
8.3.14.7.1.17
STATUS_CML (7Eh, Read Byte)
8.3.14.7.1.18
STATUS_MFR_SPECIFIC (80h, Read Byte)
8.3.14.7.1.19
STATUS_MFR_SPECIFIC_2 (F3h, Read Word)
8.3.14.7.1.20
PMBUS_REVISION (98h, Read Byte)
8.3.14.7.1.21
MFR_ID (99h, Block Read)
8.3.14.7.1.22
MFR_MODEL (9Ah, Block Read)
8.3.14.7.1.23
MFR_REVISION (9Bh, Block Read)
8.3.14.7.1.24
READ_VIN (88h, Read Word)
8.3.14.7.1.25
READ_VOUT (8Bh, Read Word)
8.3.14.7.1.26
READ_IIN (89h, Read Word)
8.3.14.7.1.27
READ_TEMPERATURE_1 (8Dh, Read Word)
8.3.14.7.1.28
READ_VAUX (D0h, Read Word)
8.3.14.7.1.29
READ_PIN (97h, Read Word)
8.3.14.7.1.30
READ_EIN (86h, Block Read)
8.3.14.7.1.31
READ_VIN_AVG (DCh, Read Word)
8.3.14.7.1.32
READ_VIN_MIN (D1h, Read Word)
8.3.14.7.1.33
READ_VIN_PEAK (D2h, Read Word)
8.3.14.7.1.34
READ_VOUT_AVG (DDh, Read Word)
8.3.14.7.1.35
READ_VOUT_MIN (DAh, Read Word)
8.3.14.7.1.36
READ_IIN_AVG (DEh, Read Word)
8.3.14.7.1.37
READ_IIN_PEAK (D4h, Read Word)
8.3.14.7.1.38
READ_TEMP_AVG (D6h, Read Word)
8.3.14.7.1.39
READ_TEMP_PEAK (D7h, Read Word)
8.3.14.7.1.40
READ_PIN_AVG (DFh, Read Word)
8.3.14.7.1.41
READ_PIN_PEAK (D5h, Read Word)
8.3.14.7.1.42
READ_SAMPLE_BUF (D8h, Block Read)
8.3.14.7.1.43
READ_BB_RAM (FDh, Block Read)
8.3.14.7.1.44
READ_BB_EEPROM (F4h, Block Read)
8.3.14.7.1.45
BB_TIMER (FAh, Read Byte)
8.3.14.7.1.46
PMBUS_ADDR (FBh, Read/Write Byte)
8.3.14.7.1.47
VIN_UV_WARN (58h, Read/Write Word)
8.3.14.7.1.48
VIN_UV_FLT (59h, Read/Write Word)
8.3.14.7.1.49
VIN_OV_WARN (57h, Read/Write Word)
8.3.14.7.1.50
VIN_OV_FLT (55h, Read/Write Word)
8.3.14.7.1.51
VOUT_UV_WARN (43h, Read/Write Word)
8.3.14.7.1.52
VOUT_PGTH (5Fh, Read/Write Word)
8.3.14.7.1.53
OT_WARN (51h, Read/Write Word)
8.3.14.7.1.54
OT_FLT (4Fh, Read/Write Word)
8.3.14.7.1.55
PIN_OP_WARN (6Bh, Read/Write Word)
8.3.14.7.1.56
IIN_OC_WARN (5Dh, Read/Write Word)
8.3.14.7.1.57
VIREF (E0h, Read/Write Byte)
8.3.14.7.1.58
GPIO_CONFIG_12 (E1h, Read/Write Byte)
8.3.14.7.1.59
GPIO_CONFIG_34 (E2h, Read/Write Byte)
8.3.14.7.1.60
ALERT_MASK (DBh, Read/Write Word)
8.3.14.7.1.61
FAULT_MASK (E3h, Read/Write Word)
8.3.14.7.1.62
DEVICE_CONFIG (E4h, Read/Write Word)
8.3.14.7.1.63
BB_CONFIG (E5h, Read/Write Byte)
8.3.14.7.1.64
OC_TIMER (E6h, Read/Write Byte)
8.3.14.7.1.65
RETRY_CONFIG (E7h, Read/Write Byte)
8.3.14.7.1.66
ADC_CONFIG_1 (E8h, Read/Write Byte)
8.3.14.7.1.67
ADC_CONFIG_2 (E9h, Read/Write Byte)
8.3.14.7.1.68
PK_MIN_AVG (EAh, Read/Write Byte)
8.3.14.7.1.69
VCMPxREF (EBh, Read/Write Byte)
8.3.14.7.1.70
PSU_VOLTAGE (ECh, Read/Write Byte)
8.3.14.7.1.71
CABLE_DROP (EDh, Read/Write Byte)
8.3.14.7.1.72
GPDAC1 (F0h, Read/Write Byte)
8.3.14.7.1.73
GPDAC2 (F1h, Read/Write Byte)
8.3.14.7.1.74
INS_DLY (F9h, Read/Write Byte)
8.3.14.8
Analog-to-digital Converter
8.3.14.9
Digital-to-analog Converters
8.3.14.10
DIRECT format Conversion
8.3.14.11
Blackbox Fault Recording
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.1.1
Single Device, Standalone Operation
9.1.2
Multiple Devices, Parallel Connection
9.1.3
Multiple Devices, Independent Operation (Multi-zone)
9.2
Typical Application: 12-V, 4-kW Power Path Protection with PMBus® Interface in Datacenter Servers
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Performance Plots
9.3
Best Design Practices
9.4
Power Supply Recommendations
9.4.1
Transient Protection
9.4.2
Output Short-Circuit Measurements
9.5
Layout
9.5.1
Layout Guidelines
9.5.2
Layout Example
10
Device and Documentation Support
10.1
Documentation Support
10.1.1
Related Documentation
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RQP|26
MPQF569A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsgg4b_oa
slvsgg4b_pm
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