My Inquiry
My Account
Analog Devices Inc. LTC4368CDD-1#TRPBF
- Part No.:
- LTC4368CDD-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Surge Suppression Ics
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC4368CDD-1#TRPBF.pdf
- Description:
- IC OVERVOLTAGE PROT CONT 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,923
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC4368CDD-1#TRPBF from Analog Devices is a bidirectional electronic circuit breaker and UV/OV/reverse supply protection controller for 2.5V–60V input systems. It controls back-to-back N-channel MOSFETs to isolate loads during faults, features ±50mV forward/reverse current sense thresholds (LTC4368-1 variant), 80µA operating current, and 32ms turn-on delay for AC blocking-used in automotive surge protection and energy storage systems.
For engineers reviewing the LTC4368CDD-1#TRPBF datasheet, LTC4368CDD-1#TRPBF pinout, LTC4368CDD-1#TRPBF application, or LTC4368CDD-1#TRPBF equivalent, key selection criteria include reverse current threshold (–50mV), AEC-Q100 qualification, DFN-10 (3mm × 3mm) package, and pin-selectable latch-off vs auto-retry behavior on forward overcurrent.
Technical Context
The LTC4368CDD-1#TRPBF implements dual high-speed comparators (1µs propagation) with 25mV hysteresis for UV and OV detection, referenced to 0.5V internal thresholds. Its gate drive uses an integrated charge pump delivering up to 13.1V enhancement above VOUT, with fast (60mA/2µs) and slow (90µA/275µs) pull-down paths for controlled MOSFET turn-off.
It integrates bidirectional overcurrent sensing: +50mV forward threshold and –50mV reverse threshold (confirmed for LTC4368-1 family), with automatic re-enable after reverse fault when VIN – VOUT ≥ 100mV. The 32ms recovery delay applies to both UV/OV fault clearance and initial power-up, debouncing live connections and blocking 50/60Hz AC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 60V operating; protects against –40V to 100V transients |
| Reverse Current Threshold | –50mV (SENSE–VOUT); enables precise reverse polarity shutdown at defined load current |
| Forward Current Threshold | +50mV (SENSE–VOUT); sets accurate forward overcurrent trip point independent of supply voltage |
| UV/OV Threshold Accuracy | ±1.5% with 25mV hysteresis; allows stable windowed supply monitoring using external resistor dividers |
| Operating Current | 80µA typical; enables low-power always-on protection in battery-backed systems |
| Shutdown Current | 5µA maximum; supports ultra-low quiescent power during system sleep modes |
| Gate Drive Enhancement | Up to 13.1V above VOUT; ensures full enhancement of standard N-channel MOSFETs across full input range |
Pinout & Package
Package: 10-Lead (3mm × 3mm) Plastic DFN with exposed pad (pin 11, optional GND connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GATE | Gate drive output | Drives gates of back-to-back N-MOSFETs; provides charge-pump-enhanced voltage up to 13.1V above VOUT |
| SENSE | Current sense input | Detects forward (+50mV) and reverse (–50mV) overcurrent via external sense resistor to VOUT |
| VOUT | Output voltage sense reference | Serves as charge pump return and reverse fault comparator reference; requires ≥1µF local bypass |
| FAULT | Open-drain fault indicator | Pulled low on UV/OV/current fault or SHDN assertion; requires external pull-up for logic-level signaling |
| SHDN | Shutdown control input | Active-low enable; toggling clears latched forward overcurrent faults when RETRY is grounded |
| VIN | Main supply input | Accepts 2.5V–60V operation; withstands –40V to 100V fault conditions; includes 2.2V UVLO |
| UV | Undervoltage comparator input | Connects to resistive divider; triggers shutdown if VIN falls below user-set threshold (0.5V internal ref) |
| OV | Overvoltage comparator input | Connects to resistive divider; triggers shutdown if VIN exceeds user-set threshold (0.5V internal ref) |
| RETRY | Forward OC recovery mode select | Grounded = latch-off; capacitor-connected = auto-retry with 5.5ms/nF cooldown delay |
| GND | Device ground reference | Primary signal and power return; exposed pad may be connected to PCB GND for thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional circuit breaking | Simultaneous +50mV forward and –50mV reverse current fault detection enables full polarity protection |
| AC power blocking | 32ms turn-on delay prevents 50Hz/60Hz AC line coupling into DC loads without external filtering |
| Hot-swap capable input | Supports live insertion of supplies ≤24V at VOUT; UVLO and fault timing prevent inrush-induced misoperation |
| AEC-Q100 qualified | Rated for automotive ambient temperatures (0°C to 70°C for C-grade), validated for surge immunity and reliability |
| Low-quiescent-current protection | 80µA operating / 5µA shutdown current enables always-on protection in energy-constrained applications |
Applications
| Automotive Battery Protection | Industrial Power Input Conditioning |
|---|---|
Use Scenario: Reverse battery connection or jump-start with incorrect polarity in 12V/24V vehicle subsystems. IC Role / Device Role / Timing Role: Controller for back-to-back N-MOSFETs that blocks reverse current flow before damage occurs; asserts FAULT within 8µs of –50mV SENSE–VOUT violation. Use Value: Prevents catastrophic MOSFET failure and PCB trace melting by disconnecting load within microseconds of reverse polarity event. | Use Scenario: Unregulated industrial DC input subject to lightning-induced surges up to 100V and brownouts below 2.5V. IC Role / Device Role / Timing Role: Dual-threshold UV/OV supervisor with 32ms debounce; isolates downstream circuitry until input stabilizes within user-defined window (e.g., 7V–36V). Use Value: Eliminates need for discrete TVS + LDO + supervisor IC stack; reduces BOM count while improving transient response time. |
| Energy Storage System (ESS) Interface | Portable Instrumentation Power Path |
Use Scenario: Bidirectional current flow between battery pack and grid-tie inverter during charge/discharge cycles with fault monitoring. IC Role / Device Role / Timing Role: Bidirectional electronic circuit breaker with separate +50mV/–50mV thresholds; re-enables connection only after VIN–VOUT ≥100mV post-reverse-fault. Use Value: Enables safe, autonomous recovery from regenerative braking overcurrent without host MCU intervention. | Use Scenario: Field-deployable test equipment powered by interchangeable Li-ion packs or wall adapters with varying polarity/voltage. IC Role / Device Role / Timing Role: Polarity-agnostic input protector with programmable UV/OV window; maintains VOUT regulation during hot-swap transitions. Use Value: Guarantees zero-downtime operation during battery swaps while preventing adapter-induced overvoltage damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional overvoltage/overcurrent protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC4368CDD-2#TRPBF | Reverse current threshold = –3mV (vs –50mV); higher sensitivity to small reverse leakage currents | Suitable for low-voltage systems where microamp-level reverse flow must be blocked (e.g., sensor bias rails) | Select LTC4368CDD-2#TRPBF only if sub-10mA reverse fault detection is required; otherwise LTC4368CDD-1#TRPBF provides robust industrial-grade margin. |
| TPS26631RGER | Fixed 3.3V–60V operating range; no reverse voltage protection; single-direction (forward-only) current limiting at 100mV threshold | Designed for USB PD and PoE-powered devices requiring only forward overcurrent and overvoltage cutoff | Choose TPS26631RGER for cost-sensitive forward-only applications; LTC4368CDD-1#TRPBF remains necessary where reverse polarity or bidirectional fault handling is mandatory. |
Compared with LTC4368CDD-2#TRPBF, the LTC4368CDD-1#TRPBF offers higher reverse fault immunity ideal for automotive battery interfaces, while versus TPS26631RGER it delivers essential bidirectional protection and wider –40V to 100V fault tolerance-critical for uncontrolled power sources.
Availability
LTC4368CDD-1#TRPBF is available at Aetrix Electronics and suitable for automotive surge protection, energy storage system interfaces, and portable instrumentation requiring stable component supply with AEC-Q100 compliance and long-term industrial availability.
Supply support for LTC4368CDD-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and automotive markets.
The LTC4368 product line delivers integrated UV/OV/reverse/overcurrent protection controllers for harsh-input environments, designed specifically for automotive, industrial, and energy infrastructure applications demanding robust fault coverage and minimal external components.
FAQ
What is the reverse current sense threshold for LTC4368CDD-1#TRPBF?
The LTC4368CDD-1#TRPBF has a confirmed reverse current sense threshold of –50mV (SENSE – VOUT), as specified in the Electrical Characteristics table for the LTC4368-1 variant. This value enables reliable detection of reverse polarity events and large reverse fault currents in automotive and industrial power paths. The LTC4368CDD-1#TRPBF datasheet explicitly defines this parameter under ΔVSENSE,R for LTC4368-1.
Does LTC4368CDD-1#TRPBF support hot-swap operation?
Yes, LTC4368CDD-1#TRPBF supports hot-swap operation for supplies ≤24V at VOUT, as stated in the Features list and Applications section. Its 32ms turn-on delay debounces live connections, and the 2.2V VIN UVLO prevents misoperation during partial insertion. However, hot-swap capability is limited to VOUT ≤24V per the Absolute Maximum Ratings and Application Information sections.
What package type and temperature grade does LTC4368CDD-1#TRPBF use?
LTC4368CDD-1#TRPBF uses a 10-Lead (3mm × 3mm) Plastic DFN package with exposed pad (LGTH marking), rated for 0°C to 70°C ambient operation (Commercial grade). This matches the "C" suffix in the part number and is confirmed in the Order Information table on page 2 of the datasheet.
How does the RETRY pin function on LTC4368CDD-1#TRPBF?
On LTC4368CDD-1#TRPBF, the RETRY pin selects forward overcurrent recovery behavior: grounding RETRY enables latch-off mode (requires SHDN toggle to reset), while connecting a capacitor configures auto-retry with a 5.5ms/nF cooldown delay. This behavior is identical across all LTC4368-1 variants and is detailed in the PIN FUNCTIONS section on page 7.
Is LTC4368CDD-1#TRPBF AEC-Q100 qualified?
Yes, LTC4368CDD-1#TRPBF is AEC-Q100 qualified for automotive applications, as explicitly stated in the FEATURES section on page 1 and confirmed in the Automotive Products table on page 3. The "C" grade (0°C to 70°C) version meets AEC-Q100 Grade 3 requirements for reliability and stress testing in automotive environments.
LTC4368CDD-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 10-WFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Clamping:
- Adjustable
- Technology:
- External Switch
- Number of Circuits:
- 1
- Applications:
- -
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC4368CDD-1#TRPBF FAQ
1.How can I place an order for LTC4368CDD-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4368CDD-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 LTC4368CDD-1#TRPBF reliable?
The price and inventory of LTC4368CDD-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 LTC4368CDD-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC4368CDD-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4368CDD-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4368CDD-1#TRPBF?
LTC4368CDD-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4368CDD-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 LTC4368CDD-1#TRPBF?
For technical support, including LTC4368CDD-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4368CDD-1#TRPBF requirements.
6.How does Aetrix verify that LTC4368CDD-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC4368CDD-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 LTC4368CDD-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC4368CDD-1#TRPBF?
All LTC4368CDD-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4368CDD-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 LTC4368CDD-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC4368CDD-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC4368CDD-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…
