My Inquiry
My Account
Analog Devices Inc. LT8672EMS#PBF
- Part No.:
- LT8672EMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LT8672EMS#PBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:128
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT8672EMS#PBF 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 drop, 3V–42V input range, and 100kHz AC ripple rectification capability in 10-lead MSOP package. Used in 12V automotive ECUs for cold-crank robustness and low-loss power path management.
For engineers reviewing the LT8672EMS#PBF datasheet, LT8672EMS#PBF pinout, LT8672EMS#PBF application, or LT8672EMS#PBF equivalent, key selection criteria include reverse input protection to –40V, ultrafast gate turn-on/off times (<3.1µs / <1.1µs), auxiliary boost regulator output (11V above DRAIN), PG fault signaling, and EN/UVLO threshold accuracy (1.21V ±60mV).
Technical Context
The LT8672EMS#PBF 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 delivers regulated 11V (±0.8V) above DRAIN to fully enhance logic-level N-MOSFETs.
Operation includes reverse polarity detection with GATE pulled to SOURCE at –40V, open-drain PG signaling for AUX regulation readiness and FPU timeout faults, and shutdown mode reducing total system current to 3.5µA. The IC withstands load dump, cold crank (3.2V min), and two-battery jump conditions per ISO16750/LV124.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Regulation Voltage | 20mV typical - enables cold-crank operation down to ~3V input without buck-boost conversion |
| Input Voltage Range | 3V to 42V operating - supports full automotive battery range including load dump transients |
| Reverse Input Rating | –40V on SOURCE/EN/UVLO - survives reverse battery connection without damage |
| AC Ripple Handling | Rectifies 2VP-P up to 100kHz - meets LV124 E-13 high-frequency ripple requirements |
| Quiescent Current | 20µA typical in operation - minimizes standby drain on vehicle battery |
| Shutdown Current | 3.5µA max - enables long-term parking mode compliance |
| EN/UVLO Threshold | 1.21V ±60mV - precise undervoltage lockout for controlled system enable/disable |
| AUX Regulator Output | 11V ±0.8V above DRAIN - ensures full enhancement of standard N-MOSFETs across input range |
Pinout & Package
LT8672EMS#PBF is housed in a 10-lead plastic MSOP package (3mm × 3mm, 0.85mm height) with θJA = 160°C/W. Exposed pad is not present in MSOP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO (Pin 1) | Enable & Undervoltage Lockout Input | Shuts down controller and boost regulator below 1.21V; ties to DRAIN for always-on operation |
| GND (Pin 2) | No-function Ground | Unused internal node; connect to PCB ground plane |
| PG (Pin 3) | Open-Drain Power Good Output | Pulls low during shutdown, AUX under-regulation, or >17µs fast pull-up activation - signals MOSFET readiness |
| GND (Pin 4) | Main Internal Ground Reference | Primary return path for all internal circuitry; tie directly to local ground plane |
| NC (Pin 5) | No Connect | Internally unconnected; may be left floating or grounded |
| AUXSW (Pin 6) | Auxiliary Boost Switch Node | Drives external boost inductor; requires minimal PCB trace area to limit EMI |
| AUX (Pin 7) | Auxiliary Boost Output | Provides gate drive voltage ≥11V above DRAIN; bypass with 1µF capacitor to DRAIN |
| DRAIN (Pin 8) | Input Voltage Sense & Supply | Senses input rail; powers internal circuitry; connect close to MOSFET drain and bypass with ≥4.7µF |
| SOURCE (Pin 9) | MOSFET Source Sense & Return | Sense node for regulation loop; fast pull-down return path; withstands –40V reverse |
| GATE (Pin 10) | MOSFET Gate Drive Output | Delivers ±300mA peak drive; connects directly to MOSFET gate terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade E qualification | Validated for –40°C to 125°C junction operation in automotive environments |
| 20mV forward regulation | Reduces minimum input voltage requirement by >200mV vs. Schottky diode solutions |
| 100kHz ripple rectification | Enables compliance with ISO16750-2 Section 4.6 and LV124 E-13 high-frequency immunity tests |
| Integrated auxiliary boost regulator | Eliminates need for external charge pump or bias supply to drive N-MOSFET gate |
| Fast pull-up/pull-down comparators | Minimizes body diode conduction time during transients, reducing MOSFET heating and reverse recovery energy |
| Reverse input protection to –40V | Protects downstream circuitry during reverse battery connection without external TVS stacking |
Applications
| Automotive Battery Protection | Industrial Power Supplies |
|---|---|
Use Scenario: 12V ECU power input subjected to cold crank (3.2V), load dump (up to 35V), and reverse battery events. IC Role / Device Role / Timing Role: Active rectifier controller managing external N-MOSFET as ideal diode in series with battery feed. Use Value: Enables use of efficient buck regulators instead of buck-boost by maintaining ≥3V effective input during cold crank via 20mV drop. | Use Scenario: 24V industrial PLC I/O module requiring reverse polarity protection and ripple filtering on main DC input. IC Role / Device Role / Timing Role: Reverse input protector and ripple rectifier controlling external MOSFET to replace lossy series diode. Use Value: Reduces power dissipation by >90% versus Schottky diode, lowering thermal design burden and eliminating heatsink requirements. |
| Portable Instrumentation | Automotive ADAS Camera Modules |
Use Scenario: Battery-powered handheld test equipment with USB-C or Li-ion input, requiring reverse connection safety and low quiescent current. IC Role / Device Role / Timing Role: Low-IQ (20µA) reverse protection controller enabling multi-week standby without battery depletion. Use Value: Extends battery life by minimizing parasitic drain while maintaining full –40V reverse fault tolerance. | Use Scenario: Front-facing camera ECU exposed to engine bay ripple (up to 6VP-P, 50kHz) per ISO16750-2. IC Role / Device Role / Timing Role: High-speed ripple rectifier using fast pull-up/pull-down paths to suppress MOSFET body diode conduction. Use Value: Limits output capacitor RMS current rise to <2× steady-state value, preventing electrolytic capacitor overheating and premature failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar active rectifier controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC4370CMS#PBF | Single-channel, no integrated boost regulator; requires external gate drive supply; 30mV regulation; 50kHz max ripple frequency | Lower integration reduces BOM count but increases layout complexity; suited for lower-frequency, cost-sensitive designs | Select when board space allows external bias supply and ripple requirements ≤50kHz |
| TPS26631RGER | Integrated 42V eFuse with reverse current blocking; no ripple rectification capability; fixed 45mV current-sense threshold; no PG pin | Provides overcurrent/overvoltage protection but cannot replace diode for AC ripple rectification or cold-crank optimization | Select when primary need is fault protection rather than ideal diode performance or ripple handling |
Compared with LTC4370CMS#PBF and TPS26631RGER, the LT8672EMS#PBF uniquely combines integrated boost regulation, 20mV precision regulation, and 100kHz ripple rectification-enabling cold-crank compatibility and eliminating external gate bias components required by alternatives.
Availability
LT8672EMS#PBF is available at Aetrix Electronics and suitable for automotive battery protection, industrial power supplies, portable instrumentation, and ADAS camera modules requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.
Supply support for LT8672EMS#PBF 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 LT8672EMS#PBF belongs to Analog Devices' Power by Linear™ active rectification product line, designed specifically to replace lossy Schottky diodes in automotive and industrial power inputs while meeting stringent AEC-Q100, ISO16750, and LV124 requirements.
FAQ
What is the maximum AC ripple frequency the LT8672EMS#PBF can rectify?
The LT8672EMS#PBF rectifies 2VP-P AC input ripple up to 100kHz and 6VP-P ripple up to 50kHz, as confirmed in the Electrical Characteristics table and Typical Performance Characteristics. This capability is enabled by its fast gate turn-on delay (<3.1µs) and dedicated fast pull-up/pull-down comparators, making it compliant with ISO16750-2 Section 4.6 and LV124 E-13 automotive ripple immunity standards. The LT8672EMS#PBF achieves this without external compensation or additional circuitry.
Does the LT8672EMS#PBF require an external gate driver or boost supply?
No, the LT8672EMS#PBF integrates a complete auxiliary boost regulator that generates a regulated 11V (±0.8V) above the DRAIN pin, eliminating the need for external gate drivers or charge pumps. This integrated boost output directly drives the gate of standard logic-level or standard-threshold N-channel MOSFETs across the full 3V–42V input range. The LT8672EMS#PBF datasheet specifies this functionality in the Block Diagram, Pin Functions, and Electrical Characteristics sections.
How does the LT8672EMS#PBF handle reverse battery connection?
The LT8672EMS#PBF withstands reverse input voltages down to –40V on the 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 negative input. This protects downstream loads without requiring external series diodes or stacked TVS devices. The LT8672EMS#PBF specification is validated per AEC-Q100 and documented in Absolute Maximum Ratings and Applications Information sections.
What is the purpose of the PG (Power Good) pin on the LT8672EMS#PBF?
The PG pin on the LT8672EMS#PBF is an open-drain output that signals MOSFET readiness: it goes high-impedance only when the auxiliary boost regulator has reached regulation (≥10.2V above DRAIN), the active rectifier controller is enabled, and the fast pull-up path has been inactive for ≤17µs. If any condition fails-including shutdown, AUX under-regulation, or prolonged FPU activation-PG pulls low. This allows system-level monitoring of rectifier health before enabling downstream loads. The LT8672EMS#PBF PG behavior is defined in Pin Functions and Operation sections.
Can the LT8672EMS#PBF operate during automotive cold crank conditions?
Yes, the LT8672EMS#PBF operates down to 3V input and supports cold crank events where battery voltage drops to 3.2V. Its 20mV forward regulation voltage maintains effective input headroom significantly higher than Schottky diodes (~400mV drop), enabling downstream buck regulators to remain functional without requiring buck-boost topology. This is verified in Applications Information (Automotive Cold Crank section) and Typical Application circuits showing 12V, 5A operation at low VIN. The LT8672EMS#PBF's 20µA quiescent current further preserves battery capacity during extended cranking.
LT8672EMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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 ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
LT8672EMS#PBF FAQ
1.How can I place an order for LT8672EMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8672EMS#PBF 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 LT8672EMS#PBF reliable?
The price and inventory of LT8672EMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8672EMS#PBF is usually 5 days.
3.What payment methods are accepted for LT8672EMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8672EMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8672EMS#PBF?
LT8672EMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8672EMS#PBF 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 LT8672EMS#PBF?
For technical support, including LT8672EMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8672EMS#PBF requirements.
6.How does Aetrix verify that LT8672EMS#PBF is sourced from the original manufacturer or authorized distributors?
All LT8672EMS#PBF 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 LT8672EMS#PBF meets industry standards.
7.What is the process for return or replacement of LT8672EMS#PBF?
All LT8672EMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8672EMS#PBF, 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 LT8672EMS#PBF part is unused and in its original packaging.
Return procedure for LT8672EMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT8672EMS#PBF 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…
