My Inquiry
My Account
Analog Devices Inc. LT8672HMS#TRPBF
- Part No.:
- LT8672HMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT8672HMS#TRPBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,591
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT8672HMS#TRPBF from Analog Devices is an AEC-Q100 qualified active rectifier controller for automotive reverse battery protection and input ripple rectification. It drives an external N-channel MOSFET to replace Schottky diodes, delivering 20mV forward regulation voltage, 3V–42V operating input range, and –40V reverse input tolerance-enabling cold-crank operation down to 3.2V in 12V automotive ECUs.
For engineers reviewing the LT8672HMS#TRPBF datasheet, LT8672HMS#TRPBF pinout, LT8672HMS#TRPBF application, or LT8672HMS#TRPBF equivalent, key selection criteria include its 20µA operating quiescent current, 100kHz AC ripple rectification capability (2VP-P), integrated auxiliary boost regulator (11V above DRAIN), fast gate turn-on/off timing (<3.1µs / <1.1µs), and MSOP-10 package with –40°C to 150°C junction temperature rating.
Technical Context
The LT8672HMS#TRPBF implements a dual-loop control architecture: a precision 20mV SOURCE–DRAIN regulation loop for steady-state conduction and independent fast pull-up/pull-down comparators (75mV/–60mV thresholds) for transient response up to 100kHz. Its integrated auxiliary boost regulator uses hysteretic switching with 100mA current-limited low-side switch to generate a stable 11V gate drive relative to DRAIN.
Operation includes reverse fault protection via GATE-to-SOURCE clamping at –40V, open-drain PG signaling of AUX regulation readiness and FPU timeout, and EN/UVLO shutdown reducing system current to 3.5µA. The device tolerates load dump, cold crank, and two-battery jump conditions per ISO16750 and LV124 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Regulation Voltage | 20mV - Enables cold-crank operation at 3.2V input without requiring buck-boost conversion |
| Operating Input Range | 3V to 42V - Supports full automotive battery range including load dump transients |
| Reverse Input Tolerance | –40V - Survives reverse battery connection while protecting downstream loads |
| Quiescent Current | 20µA - Minimizes standby power loss in always-on vehicle modules |
| AC Ripple Rectification | 100kHz at 2VP-P - Meets ISO16750-2 Section 4.6 for high-frequency supply ripple suppression |
| Gate Drive Voltage | 11V above DRAIN - Ensures full enhancement of logic-level N-MOSFETs across full input range |
| Shutdown Current | 3.5µA - Enables ultra-low-power disable mode for ECU sleep states |
| EN/UVLO Threshold | 1.21V with 70mV hysteresis - Provides clean enable/disable transition under noisy battery rails |
Pinout & Package
LT8672HMS#TRPBF is housed in a 10-lead MSOP package (3mm × 3mm, 0.5mm pitch) with exposed pad thermal enhancement. Pin 11 (exposed pad) is not present in MSOP; it applies only to DFN variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO (Pin 1) | Enable and undervoltage lockout input | Shuts down entire IC below 1.21V; ties to DRAIN for always-on operation |
| GND (Pin 2) | No-function ground tie | Must be connected to PCB ground plane but carries no internal current |
| PG (Pin 3) | Open-drain power good flag | Pulls low during startup, AUX undervoltage, or >17µs fast pull-up activation |
| GND (Pin 4) | Main internal ground reference | Primary return path for all internal circuitry; requires low-impedance local ground |
| NC (Pin 5) | No-connect terminal | Internally unconnected; may be grounded or left floating |
| AUXSW (Pin 6) | Auxiliary boost regulator switch node | Drives external inductor; must be routed with minimal loop area for EMI control |
| AUX (Pin 7) | Boost regulator output | Provides 11V gate drive referenced to DRAIN; requires 1µF ceramic cap to DRAIN |
| DRAIN (Pin 8) | Input voltage sense and supply rail | Senses input for regulation; powers internal circuitry; bypass with ≥4.7µF |
| SOURCE (Pin 9) | MOSFET source sense and return | Reference for SOURCE–DRAIN regulation; protected to –40V; no bypass cap >60nF |
| GATE (Pin 10) | External MOSFET gate driver output | Delivers ±300mA peak drive; regulates VGS to maintain 20mV forward drop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualification | H-grade (–40°C to +150°C) certification ensures reliability in engine bay and transmission control units |
| Integrated auxiliary boost regulator | Eliminates need for external charge pump or bias supply to drive N-MOSFET gate above input rail |
| Fast transient response | 1.7µs gate turn-on and 0.6µs turn-off times enable clean rectification of 100kHz input ripple |
| Reverse input protection | –40V tolerant SOURCE and EN/UVLO pins prevent latch-up or damage during battery reversal |
| Power Good (PG) monitoring | Validates AUX regulation and gate driver readiness before enabling load-prevents MOSFET overcurrent during startup |
| Ultra-low quiescent current | 20µA operation and 3.5µA shutdown meet OEM requirements for always-connected telematics and ADAS modules |
Applications
| Automotive Battery Protection | Industrial Power Supplies |
|---|---|
Use Scenario: 12V ECU subjected to reverse battery connection, load dump (up to 35V), and cold crank (down to 3.2V) per ISO 16750-2. IC Role / Device Role / Timing Role: Active rectifier controller replacing Schottky diode in input stage; regulates forward drop to 20mV during conduction and blocks reverse current at –40V. Use Value: Reduces power loss by >90% vs. SBG2040CT Schottky, eliminating heatsink requirement and enabling compact 10A designs. | Use Scenario: 24V industrial PLC I/O module requiring reverse polarity protection and immunity to 50kHz conducted noise on DC input bus. IC Role / Device Role / Timing Role: Controls external N-MOSFET as ideal diode; rectifies 6VP-P ripple up to 50kHz using fast pull-up/pull-down comparators. Use Value: Maintains stable 24V output under noisy supply conditions without increasing output capacitor RMS current or thermal stress. |
| Portable Instrumentation | Automotive ECU Power Sequencing |
Use Scenario: Handheld test equipment powered from vehicle battery with intermittent connection and reverse polarity risk. IC Role / Device Role / Timing Role: Reverse input protector and low-drop rectifier; enables operation during cranking while blocking reverse current during disconnection. Use Value: Extends runtime by minimizing dropout voltage-preserves 3.2V minimum input headroom for buck regulators feeding FPGA and ADC subsystems. | Use Scenario: Multi-rail automotive domain controller requiring controlled power-up sequence and fault isolation between battery and 5V/3.3V domains. IC Role / Device Role / Timing Role: Input protection controller with PG output used to enable downstream LDOs only after gate drive is stable and MOSFET is fully enhanced. Use Value: Prevents inrush into partially charged downstream capacitance and avoids brown-out during AUX regulator soft-start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar active rectifier controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT8672IMS#TRPBF | I-grade (–40°C to +125°C) vs. H-grade (–40°C to +150°C); identical electrical specs and pinout | Approved for cabin electronics but not under-hood applications requiring 150°C operation | Select LT8672HMS#TRPBF for engine control, transmission, or ADAS modules where junction temperature exceeds 125°C |
| LM74610-Q1 | Single-supply controller with integrated gate driver; no auxiliary boost-requires external 12V bias or logic-level MOSFET | Lacks 100kHz ripple rectification capability; limited to ≤50kHz and higher forward drop (≈40mV) | Choose LM74610-Q1 only when board space constraints prohibit external inductor or when 12V bias rail is already available |
Compared with LT8672IMS#TRPBF, the LT8672HMS#TRPBF provides extended temperature capability essential for under-hood deployment, while versus LM74610-Q1 it delivers superior high-frequency ripple handling and self-contained gate drive-eliminating external bias dependencies and enabling lower forward drop in compact layouts.
Availability
LT8672HMS#TRPBF is available at Aetrix Electronics and suitable for automotive battery protection, industrial power supplies, portable instrumentation, and automotive ECU power sequencing requiring stable component supply across extended temperature and high-reliability environments.
Supply support for LT8672HMS#TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The LT8672 product line was designed specifically for automotive-grade active rectification-delivering ultra-low quiescent current, AEC-Q100 qualification, and high-frequency ripple rejection to replace Schottky diodes in next-generation ECUs and power distribution modules.
FAQ
What is the maximum AC ripple frequency the LT8672HMS#TRPBF can rectify?
The LT8672HMS#TRPBF supports rectification of 2VP-P AC input ripple up to 100kHz and 6VP-P ripple up to 50kHz. This capability is enabled by its fast gate turn-on delay (1.7µs typical) and fast pull-up comparator with 75mV threshold, allowing precise MOSFET control during high-frequency transients without body-diode conduction. Performance is verified per ISO16750-2 Section 4.6 test profiles.
Does the LT8672HMS#TRPBF require an external gate driver bias supply?
No, the LT8672HMS#TRPBF does not require an external gate driver bias supply. It integrates an auxiliary boost regulator that generates a regulated 11V gate drive voltage referenced to the DRAIN pin, enabling full enhancement of standard and logic-level N-channel MOSFETs across its full 3V–42V input range. A 1µF ceramic capacitor between AUX and DRAIN is mandatory for stability.
How does the LT8672HMS#TRPBF protect against reverse battery connection?
The LT8672HMS#TRPBF protects against reverse battery connection by tolerating –40V on both SOURCE and EN/UVLO pins. When SOURCE goes negative, internal circuitry pulls GATE to SOURCE, turning off the external MOSFET and isolating DRAIN from the reversed input. This prevents reverse current flow and safeguards downstream circuitry-meeting AEC-Q100 stress test requirements for reverse polarity.
What is the purpose of the PG (Power Good) pin on the LT8672HMS#TRPBF?
The PG pin on the LT8672HMS#TRPBF is an open-drain output that signals when the external MOSFET is ready to conduct load current. It goes high-impedance only when AUX voltage has reached regulation, the gate driver is active, and the fast pull-up path has timed out (<17µs). This allows safe sequencing of downstream regulators and prevents inrush into partially charged loads during startup of the LT8672HMS#TRPBF.
Can the LT8672HMS#TRPBF operate during automotive cold crank conditions?
Yes, the LT8672HMS#TRPBF operates during automotive cold crank conditions down to 3.2V input voltage. Its 20mV forward regulation voltage maintains sufficient headroom for downstream buck regulators, eliminating the need for less efficient buck-boost topologies. Combined with 20µA quiescent current and –40°C to +150°C H-grade qualification, it sustains functionality throughout ISO16750-2 E-11 cold-crank profiles.
LT8672HMS#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- -
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 3V ~ 42V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
LT8672HMS#TRPBF FAQ
1.How can I place an order for LT8672HMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8672HMS#TRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LT8672HMS#TRPBF reliable?
The price and inventory of LT8672HMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8672HMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LT8672HMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8672HMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8672HMS#TRPBF?
LT8672HMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8672HMS#TRPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LT8672HMS#TRPBF?
For technical support, including LT8672HMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8672HMS#TRPBF requirements.
6.How does Aetrix verify that LT8672HMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT8672HMS#TRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LT8672HMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LT8672HMS#TRPBF?
All LT8672HMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8672HMS#TRPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LT8672HMS#TRPBF part is unused and in its original packaging.
Return procedure for LT8672HMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT8672HMS#TRPBF Tags
-
ZXGD3009E6TA
Diodes Incorporated
-
1EDN7512BXTSA1
Infineon Technologies
-
UCC27517DBVR
Texas Instruments
-
MCP1416T-E/OT
Microchip Technology
-
MCP1402T-E/OT
Microchip Technology
-
MCP1415T-E/OT
Microchip Technology
-
MCP1401T-E/OT
Microchip Technology
-
IX4428NTR
Littelfuse Inc.
-
IRS2005STRPBF
Infineon Technologies
-
IRS2008STRPBF
Infineon Technologies
-
IX4310TTR
Littelfuse Inc.
-
2EDN7524RXTMA1
Infineon Technologies
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
