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Analog Devices Inc. LTC4213CDDB#TRPBF
- Part No.:
- LTC4213CDDB#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Specialized ICs
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC4213CDDB#TRPBF.pdf
- Description:
- IC ELECTRONIC CIRC BREAKER 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,917
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Product details
Overview
LTC4213CDDB#TRPBF from Analog Devices (formerly Linear Technology) is an electronic circuit breaker IC that controls external N-channel MOSFETs for high-side overcurrent protection without requiring a sense resistor. It features dual-level trip thresholds (25/50/100 mV), 1 µs fast response, and operates from 2.3 V to 6 V bias supply. It is used in hot-swap power distribution, server backplanes, and industrial power modules where low-loss current sensing and rapid fault isolation are critical.
For engineers reviewing the LTC4213CDDB#TRPBF datasheet, LTC4213CDDB#TRPBF pinout, LTC4213CDDB#TRPBF application, or LTC4213CDDB#TRPBF equivalent, key selection considerations include its no-RSENSE current sensing architecture, selectable trip voltage via ISEL pin, READY status signaling, undervoltage lockout behavior, and compatibility with logic-level N-channel MOSFETs rated for ≤8 V gate-source drive.
Technical Context
The LTC4213CDDB#TRPBF implements dual-comparator overcurrent detection: a slow comparator (16 µs response) tripping at VCB and a fast comparator (1 µs response) tripping at VCB(FAST), both referenced to SENSEP–SENSEN differential input. Thresholds are selected by grounding, floating, or tying ISEL to VCC - yielding VCB values of 25 mV / 50 mV / 100 mV and corresponding VCB(FAST) values of 100 mV / 175 mV / 325 mV.
Its internal charge pump delivers 100 µA gate pull-up current, clamping GATE-to-SENSEN voltage to ∆VGSMAX (4.8 V min at VCC ≥ 2.97 V). The device enters reset mode when ON < 0.4 V and arms only after VGATE exceeds ∆VGSARM (4.4 V min at VCC ≥ 2.97 V), ensuring MOSFET enhancement before enabling protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 6 V - supports single-supply operation from low-voltage logic rails up to 5 V systems |
| VCB Trip Thresholds | 25 mV / 50 mV / 100 mV - sets load current limit via external MOSFET RDS(on) without sense resistor |
| Fast Trip Response | 1 µs - enables immediate shutdown during severe short-circuit events |
| GATE Drive Capability | ∆VGSMAX = 4.8 V to 8 V - ensures full enhancement of logic-level N-channel MOSFETs |
| Operating Temp | 0°C to 70°C - commercial-grade rating suitable for indoor industrial and computing environments |
| Package | 8-lead 3 mm × 2 mm DFN - compact footprint with exposed pad for thermal management |
| READY Signal Delay | tREADY = 22–115 µs - indicates stable MOSFET conduction and armed protection state |
Pinout & Package
Package: 8-lead (3 mm × 2 mm) plastic DFN with exposed thermal pad (Pin 9, optional GND connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| READY (1) | Open-drain status output | Pulled low during reset/startup; high-impedance when MOSFET is on and circuit breaker is armed |
| ON (2) | Control input | Starts startup sequence when >0.8 V; resets fault when held <0.4 V for >80 µs |
| ISEL (3) | Threshold select | GND = 25 mV VCB; float = 50 mV; VCC = 100 mV - enables dynamic threshold adjustment |
| GND (4) | Ground reference | Primary return path for internal circuitry and sense inputs |
| GATE (5) | High-side gate driver | 100 µA pull-up current source; clamped to ≤8 V above SENSEN; actively pulls low on trip |
| SENSEN (6) | Negative current sense | Connected to MOSFET source; common-mode range extends to ground |
| SENSEP (7) | Positive current sense | Connected to MOSFET drain; common-mode range extends to VCC + 0.4 V (VCC ≥ 2.5 V) |
| VCC (8) | Bias supply input | Power for internal logic and charge pump; UVLO activates below 2.07 V |
Key Features
| Feature | Design Value |
|---|---|
| No external sense resistor required | Uses MOSFET RDS(on) as current sense element - eliminates power loss and board space of shunt resistor |
| Dual-speed overcurrent protection | 16 µs slow trip for sustained overload; 1 µs fast trip for catastrophic short - reduces false trips while ensuring safety |
| Three programmable trip thresholds | Configured via single ISEL pin - supports startup surge tolerance and steady-state precision |
| Integrated undervoltage lockout | 2.07 V turn-on threshold with 100 mV hysteresis - prevents erratic operation during brownout conditions |
| READY status signaling | Asserts high-impedance state only after MOSFET fully enhanced and protection armed - enables safe downstream power sequencing |
Applications
| Hot-Swap Power Modules | Industrial PLC Power Distribution |
|---|---|
Use Scenario: Inserting powered blade servers into live backplanes without disrupting upstream power. IC Role / Device Role / Timing Role: High-side electronic circuit breaker providing instantaneous fault isolation and inrush control. Use Value: Eliminates need for mechanical breakers or bulky sense resistors; enables compact, reliable hot-swap capability with <1 µs fault response. | Use Scenario: Protecting I/O module power rails in programmable logic controllers subject to field wiring faults. IC Role / Device Role / Timing Role: Overcurrent supervisor for 24 V DC power distribution to sensor/actuator circuits. Use Value: Dual-threshold detection distinguishes nuisance transients from true overloads; READY signal synchronizes diagnostics with power readiness. |
| Telecom Line Card Protection | Embedded Computing Power Rails |
Use Scenario: Safeguarding 12 V or 48 V line card supplies against connector shorts and component failures. IC Role / Device Role / Timing Role: Electronic fuse with fast trip and status feedback for centralized power management. Use Value: 25 mV trip setting enables precise current limiting with low-RDS(on) MOSFETs; ISEL pin allows adaptive threshold during initialization. | Use Scenario: Securing 3.3 V or 5 V core rails in edge AI accelerators and fanless embedded systems. IC Role / Device Role / Timing Role: Compact, low-dropovercurrent protector integrated into tight PCB layouts. Use Value: 3 mm × 2 mm DFN package saves space vs. discrete solutions; no sense resistor preserves voltage headroom in low-VOUT designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar electronic circuit breaker applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS25982LMLR | Integrated MOSFET; fixed 28 mV trip; 2.7–24 V input; I²C programmability | Eliminates external FET but lacks ISEL threshold flexibility and 1 µs fast trip | Choose for simplified BOM and digital configuration; avoid if discrete MOSFET optimization or sub-µs response is required |
| LTC4215CDHC#PBF | Same family; 12-lead DFN; includes current monitor output and adjustable soft-start | Higher pin count; adds analog current reporting but requires more layout area | Choose when real-time load current telemetry or controlled inrush is needed; otherwise LTC4213CDDB#TRPBF offers minimal footprint |
Compared with TPS25982LMLR and LTC4215CDHC#PBF, the LTC4213CDDB#TRPBF provides the smallest package, fastest fault response, and simplest external interface - making it optimal for space-constrained, high-reliability applications where discrete MOSFET selection and ultra-fast shutdown are priorities.
Availability
LTC4213CDDB#TRPBF is available at Aetrix Electronics and suitable for hot-swap power modules, industrial PLC power distribution, and telecom line card protection requiring stable component supply across commercial temperature ranges.
Supply support for LTC4213CDDB#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. (including legacy Linear Technology products) designs precision analog, mixed-signal, and power management ICs for high-performance industrial, automotive, and communications systems.
The LTC4213CDDB#TRPBF belongs to the Linear Technology electronic circuit breaker product line, engineered specifically for high-side, no-RSENSE current limiting in hot-swap and power-distribution applications where minimal voltage drop and rapid fault response are essential.
FAQ
What is the primary function of the LTC4213CDDB#TRPBF?
The LTC4213CDDB#TRPBF is an electronic circuit breaker IC that monitors load current using the RDS(on) of an external N-channel MOSFET - eliminating the need for a sense resistor. It provides dual-speed overcurrent protection (1 µs fast trip, 16 µs slow trip), READY status signaling, and operates from 2.3 V to 6 V. Its design enables low-loss, high-reliability power path protection in hot-swap and industrial systems.
How does the ISEL pin affect the LTC4213CDDB#TRPBF's trip threshold?
The ISEL pin on the LTC4213CDDB#TRPBF selects one of three circuit breaker trip voltages: grounded → 25 mV, floating → 50 mV, tied to VCC → 100 mV. Corresponding fast-trip thresholds are 100 mV, 175 mV, and 325 mV. This allows dynamic adaptation - e.g., higher threshold during startup inrush, lower threshold during steady-state operation - without external components.
What is the maximum gate drive voltage the LTC4213CDDB#TRPBF can apply to the external MOSFET?
The LTC4213CDDB#TRPBF limits the voltage between GATE and SENSEN pins to ∆VGSMAX, which is 4.8 V minimum (at VCC ≥ 2.97 V) and 8 V maximum. This ensures safe, full enhancement of logic-level N-channel MOSFETs while preventing gate oxide overstress. The actual applied VGS depends on SENSEN voltage and internal clamping.
Does the LTC4213CDDB#TRPBF provide overvoltage protection?
Yes - the LTC4213CDDB#TRPBF includes overvoltage protection that triggers when SENSEP exceeds VCC by >0.7 V for >65 µs. Upon detection, the GATE pin is actively pulled low to disable the external MOSFET. This protects downstream loads from sustained overvoltage events, independent of current-sense operation.
What does the READY pin indicate on the LTC4213CDDB#TRPBF?
The READY pin on the LTC4213CDDB#TRPBF is an open-drain output that transitions to high-impedance only after the external MOSFET is fully enhanced (VGATE > VSENSEN + ∆VGSARM) and the circuit breaker is armed. It remains low during reset, startup, fault, or ON-pin deactivation - providing unambiguous confirmation of safe, protected conduction for downstream power sequencing.
LTC4213CDDB#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Electronic Circuit Breaker
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x2)
- Grade:
- -
- Qualification:
- -
LTC4213CDDB#TRPBF FAQ
1.How can I place an order for LTC4213CDDB#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4213CDDB#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 LTC4213CDDB#TRPBF reliable?
The price and inventory of LTC4213CDDB#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4213CDDB#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC4213CDDB#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4213CDDB#TRPBF transactions.
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4.How is shipping managed for LTC4213CDDB#TRPBF?
LTC4213CDDB#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4213CDDB#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 LTC4213CDDB#TRPBF?
For technical support, including LTC4213CDDB#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4213CDDB#TRPBF requirements.
6.How does Aetrix verify that LTC4213CDDB#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC4213CDDB#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 LTC4213CDDB#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC4213CDDB#TRPBF?
All LTC4213CDDB#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4213CDDB#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 LTC4213CDDB#TRPBF part is unused and in its original packaging.
Return procedure for LTC4213CDDB#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC4213CDDB#TRPBF Tags
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