My Inquiry
My Account
Analog Devices Inc. LTC4364CDE-1#TRPBF
- Part No.:
- LTC4364CDE-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Surge Suppression Ics
- Package:
- 14-WFDFN Exposed Pad
- Datasheet:
-
LTC4364CDE-1#TRPBF.pdf
- Description:
- SURGE STOPPER W/DIODE 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,130
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC4364CDE-1#TRPBF from Analog Devices is a surge stopper with ideal diode controller designed for automotive and industrial high-reliability power rails. It protects downstream loads from 200V/1ms transients, regulates output to 27V during overvoltage events (e.g., load dump), latches off the external N-channel MOSFET upon fault timeout, and provides reverse input protection to –40V. It operates from 4V to 80V input and features 10μA shutdown current.
For engineers reviewing the LTC4364CDE-1#TRPBF datasheet, LTC4364CDE-1#TRPBF pinout, LTC4364CDE-1#TRPBF application, or LTC4364CDE-1#TRPBF equivalent, this page delivers verified functional identity, validated DFN-14 package mapping, confirmed latch-off behavior (LTC4364-1 variant), precise overvoltage/undervoltage thresholds (1.25V ±30mV), and real-world timing parameters including 1.35V TMR fault threshold and 0.15V retry threshold.
Technical Context
The LTC4364CDE-1#TRPBF implements dual-loop protection: a voltage amplifier regulates HGATE to clamp VOUT via FB feedback (1.25V reference), while a current amplifier monitors ∆VSNS across an external sense resistor to limit load current. Its fault timer uses a single external capacitor charged by voltage- and current-dependent currents - 5× higher during overcurrent to accelerate turn-off and preserve MOSFET SOA.
It integrates two independent gate drivers: HGATE controls the surge-stopping pass MOSFET (M1) with 130mA pull-down capability, while DGATE drives the ideal diode MOSFET (M2) to maintain 30mV forward drop and suppress reverse current transients. The device latches off after TMR reaches 1.35V and requires SHDN or UV reset - distinguishing it from auto-retry LTC4364-2 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 80V operating; withstands –40V reverse input and 200V/1ms transient at VIN |
| Overvoltage Clamp | Adjustable via FB divider; regulates VOUT to 27V in typical automotive load dump scenario |
| Fault Response | LTC4364-1 variant: latches HGATE OFF after TMR = 1.35V; requires SHDN or UV pin reset |
| Shutdown Current | 10μA at 12V - enables low-power system sleep modes without compromising surge readiness |
| Reverse Protection | –40V on INPUT (VCC/SOURCE), –20V on OUTPUT (SENSE/OUT); DGATE actively blocks reverse current |
| Package & Temp | 14-lead 4mm × 3mm DFN; commercial grade (0°C to 70°C) with exposed pad (optional GND) |
| UV/OV Thresholds | 1.25V ±30mV for both UV and OV comparators; 25mV hysteresis on UV, 12mV on OV |
Pinout & Package
Package: 14-lead (4mm × 3mm) plastic DFN with optional exposed pad (Pin 15) for thermal enhancement or GND connection. Pin numbering follows top-view standard; Pin 15 is not electrically connected except as thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Output voltage sense input | Senses drain of HGATE-controlled MOSFET; triggers ENOUT high-impedance when VCC − VOUT < 0.7V |
| SENSE (Pin 2) | Current sense input | Monitors voltage drop across external sense resistor; sets 50mV (normal) or 25mV (short) current limit threshold |
| DGATE (Pin 3) | Ideal diode gate driver output | Drives M2 MOSFET to maintain ~30mV forward drop; fast 130mA pull-down prevents reverse current surges |
| SOURCE (Pin 4) | Common source return | Anode node for ideal diode; reference for DGATE/HGATE clamping (up to 12V above SOURCE) |
| HGATE (Pin 5) | Surge stopper gate driver output | Controls M1 pass MOSFET; 130mA pull-down ensures rapid turn-off during overvoltage/overcurrent faults |
| VCC (Pin 6) | Main supply input | Accepts 4V–80V; survives –40V reverse bias; powers internal circuitry and charge pumps |
| SHDN (Pin 7) | Shutdown control input | Pull <0.5V to enter 10μA shutdown; open or >2.2V enables operation; internal 4V clamp when floating |
| UV (Pin 8) | Undervoltage comparator input | 1.25V threshold; falling below 0.6V resets latch in LTC4364-1 after fault timeout |
| OV (Pin 9) | Overvoltage comparator input | 1.25V threshold; inhibits auto-retry if >1.25V; must fall below to allow HGATE re-enable after cool-down |
| GND (Pin 10) | Device ground reference | Signal and power return; connects to PCB ground plane; exposed pad may be tied here |
| FLT (Pin 11) | Fault open-drain output | Pulls low at TMR = 1.25V (warning); remains low after HGATE latch-off until reset |
| ENOUT (Pin 12) | Enable output indicator | High-impedance when VOUT > VCC − 0.7V; latched low until VOUT < 2.2V; indicates MOSFET conduction state |
| TMR (Pin 13) | Fault timer capacitor node | Charged by voltage- or current-dependent current sources; thresholds at 1.25V (warn), 1.35V (fault), 0.15V (retry) |
| FB (Pin 14) | Feedback input for OV regulation | 1.25V reference point; sets output clamp voltage via resistive divider from OUT to GND |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-gate control | Separate HGATE (surge stopper) and DGATE (ideal diode) drivers eliminate need for discrete controllers and reduce BOM count |
| Latch-off fault response | LTC4364-1 behavior ensures fail-safe shutdown during sustained overvoltage - critical for automotive ECU safety compliance |
| Reverse input protection | Withstands –40V on VCC/SOURCE pins and actively blocks reverse current using DGATE-controlled MOSFET |
| Low-quiescent shutdown | 10μA ICC(SHDN) enables always-on surge protection in battery-backed systems without excessive drain |
| Wide-input ruggedness | Operates from 4V (cold-crank compatible) to 80V, with absolute max rating up to 100V on VCC/SOURCE/OV/UV |
| SOA-aware fault timing | TMR charging current scales with VCC−VOUT, shortening timeout under high stress to keep M1 within safe operating area |
Applications
| Automotive Load Dump Protection | Industrial Redundant Power ORing |
|---|---|
|
Use Scenario: Protecting engine control units (ECUs) and ADAS sensors during 12V/24V vehicle load dump events (up to 120V, 400ms). IC Role / Device Role / Timing Role: LTC4364CDE-1#TRPBF acts as primary surge limiter - regulating VOUT to 27V while latching off M1 if transient persists beyond TMR timeout. Use Value: Prevents damage to 3.3V/5V logic rails; maintains uninterrupted operation during brief transients and guarantees hard shutdown during sustained overvoltage. |
Use Scenario: Combining two independent DC supplies (e.g., main + backup battery) into a single rail for mission-critical PLC I/O modules. IC Role / Device Role / Timing Role: LTC4364CDE-1#TRPBF controls back-to-back MOSFETs to enable ORing with reverse blocking and zero-forward-drop ideal diode behavior. Use Value: Eliminates Schottky losses (~0.4V), improves efficiency, and prevents backfeed - especially vital when one supply fails or is disconnected. |
| Hot-Swap Power Entry | Avionic Power Conditioning |
|
Use Scenario: Safely inserting powered boards into live backplanes in telecom or server chassis without causing bus glitches or damaging connectors. IC Role / Device Role / Timing Role: LTC4364CDE-1#TRPBF serves as inrush-limited, fault-protected front-end - controlling M1 turn-on slope and disabling on overcurrent. Use Value: Limits inrush current to prevent voltage droop; detects and latches off on connector arcing or short-circuit faults before damage occurs. |
Use Scenario: Conditioning unregulated aircraft 28V DC bus subject to lightning-induced transients and polarity reversals during maintenance. IC Role / Device Role / Timing Role: LTC4364CDE-1#TRPBF provides AEC-Q100-aligned surge suppression, –40V reverse input tolerance, and latch-off for deterministic fault isolation. Use Value: Meets DO-160 Section 22 requirements for induced transient suppression; eliminates need for external TVS arrays and series diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar surge protection and ideal diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC4364IDE-1#TRPBF | Same functionality and pinout; extended temperature range (–40°C to 85°C) vs. 0°C to 70°C | Required for under-hood automotive or industrial ambient environments exceeding 70°C | Select when operating ambient exceeds 70°C; otherwise LTC4364CDE-1#TRPBF offers cost-optimized commercial-grade performance |
| LTC4364CDE-2#TRPBF | Auto-retry behavior instead of latch-off; same package, temp grade, and electrical specs | Suitable where automatic recovery after transient clearance is preferred over manual reset | Choose LTC4364CDE-2#TRPBF only if system architecture supports autonomous restart; LTC4364CDE-1#TRPBF is mandatory for fail-safe lockout requirements |
Compared with LTC4364IDE-1#TRPBF, the LTC4364CDE-1#TRPBF trades extended temperature capability for lower cost in benign environments; compared with LTC4364CDE-2#TRPBF, it replaces auto-retry with deterministic latch-off - enabling certified safety shutdown in automotive ECUs and avionics.
Availability
LTC4364CDE-1#TRPBF is available at Aetrix Electronics and suitable for automotive load dump protection, industrial redundant power ORing, and avionic power conditioning requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC4364CDE-1#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, communications, and automotive markets.
The LTC4364 product line delivers integrated surge stopper + ideal diode functionality for high-reliability DC power rails - specifically engineered to replace discrete TVS-diode-MOSFET combinations in automotive, avionic, and industrial power entry designs.
FAQ
What is the key functional difference between LTC4364CDE-1#TRPBF and LTC4364CDE-2#TRPBF?
The LTC4364CDE-1#TRPBF latches off the HGATE output after fault timeout and requires manual reset via SHDN or UV pin, whereas the LTC4364CDE-2#TRPBF automatically retries after a cool-down cycle. This makes LTC4364CDE-1#TRPBF suitable for fail-safe applications like automotive ECUs where uncontrolled restart is prohibited. Both share identical pinout, package, and electrical specifications except for this behavioral distinction.
Does LTC4364CDE-1#TRPBF support reverse input voltage, and how is it implemented?
Yes, LTC4364CDE-1#TRPBF supports –40V reverse input on VCC and SOURCE pins without damage. Reverse input protection is implemented via the DGATE-controlled ideal diode MOSFET (M2), which actively blocks reverse current flow when input collapses or polarity reverses. The device pulls DGATE low if reverse voltage exceeds –30mV, minimizing output disturbance and preventing backfeed into upstream supplies.
What external components are required to configure overvoltage clamping on LTC4364CDE-1#TRPBF?
To configure overvoltage clamping, LTC4364CDE-1#TRPBF requires a resistive divider from OUT to GND connected to the FB pin. For a 27V clamp, use R1 = 90.9kΩ (between OUT and FB) and R2 = 4.99kΩ (between FB and GND), setting FB = 1.25V at VOUT = 27V. No additional compensation is needed - the internal voltage amplifier stabilizes the loop. A 22µF low-ESR capacitor on OUT is also mandatory for stability and hold-up.
How does the fault timer (TMR pin) behave during overvoltage versus overcurrent events on LTC4364CDE-1#TRPBF?
During overvoltage, the TMR pin charges at a rate proportional to VCC−VOUT; during overcurrent, the charging current is 5× higher for the same voltage differential - accelerating fault detection and turn-off to protect the MOSFET's safe operating area. In both cases, FLT goes low at 1.25V (warning), and HGATE latches off at 1.35V. The TMR capacitor value directly sets the timeout duration, with higher values increasing delay.
Can LTC4364CDE-1#TRPBF operate with input voltages below 4V, such as during automotive cold-cranking?
No - LTC4364CDE-1#TRPBF has a minimum operating supply of 4V per its Absolute Maximum Ratings and Electrical Characteristics tables. During cold-cranking, battery voltage may dip below 4V, causing the device to cease regulation and disable HGATE/DGATE. For sub-4V operation, a separate low-VIN supervisor or pre-bias circuit is required upstream; the LTC4364CDE-1#TRPBF itself will not function reliably below 4V.
LTC4364CDE-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 14-WFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Clamping:
- Adjustable
- Technology:
- External Switch
- Number of Circuits:
- 1
- Applications:
- General Purpose
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DFN (4x3)
LTC4364CDE-1#TRPBF FAQ
1.How can I place an order for LTC4364CDE-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4364CDE-1#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 LTC4364CDE-1#TRPBF reliable?
The price and inventory of LTC4364CDE-1#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4364CDE-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC4364CDE-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4364CDE-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4364CDE-1#TRPBF?
LTC4364CDE-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4364CDE-1#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 LTC4364CDE-1#TRPBF?
For technical support, including LTC4364CDE-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4364CDE-1#TRPBF requirements.
6.How does Aetrix verify that LTC4364CDE-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC4364CDE-1#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 LTC4364CDE-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC4364CDE-1#TRPBF?
All LTC4364CDE-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4364CDE-1#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 LTC4364CDE-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC4364CDE-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC4364CDE-1#TRPBF Tags
-
TVS3300DRVR
Texas Instruments
-
TCPP01-M12
STMicroelectronics
-
TPD4S214YFFR
Texas Instruments
-
TPD6S300ARUKR
Texas Instruments
-
TBU-CA085-300-WH
Bourns Inc.
-
TBU-CA065-500-WH
Bourns Inc.
-
TBU-CA040-100-WH
Bourns Inc.
-
TBU-CA085-500-WH
Bourns Inc.
-
TBU-CA085-200-WH
Bourns Inc.
-
NX20P0408UKZ
NXP Semiconductors
-
TBU-CA085-100-WH
Bourns Inc.
-
TBU-CA050-300-WH
Bourns Inc.
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…
