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Analog Devices Inc. LTC2913HDD-1#TRPBF
- Part No.:
- LTC2913HDD-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC2913HDD-1#TRPBF.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,559
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Product details
Overview
LTC2913HDD-1#TRPBF from Analog Devices (formerly Linear Technology) is a dual-input, latching overvoltage/undervoltage supervisor IC designed for precision monitoring of two independent power rails in high-reliability systems. It features ±1.5% threshold accuracy over –40°C to 125°C, 44 μA quiescent current, open-drain UV/OV outputs, and adjustable reset timeout via external capacitor. Used in automotive-grade server power management to ensure safe startup/shutdown of 5V and 3.3V core supplies.
For engineers reviewing the LTC2913HDD-1#TRPBF datasheet, LTC2913HDD-1#TRPBF pinout, LTC2913HDD-1#TRPBF application, or LTC2913HDD-1#TRPBF equivalent, key selection criteria include guaranteed UV/OV assertion at VCC ≥ 1V, latch behavior on OV output (LTC2913-1 variant), glitch-immune comparator architecture, and DFN (3mm × 3mm) package compatibility with high-density PCB layouts.
Technical Context
The LTC2913HDD-1#TRPBF implements two independent voltage monitor channels-each with separate VHn (undervoltage sense) and VLn (overvoltage sense) inputs-feeding into comparators with integrated low-pass filtering for transient immunity. All channels share a common UV output and a common OV output, with the -1 variant enabling OV latch via the LATCH pin.
Its internal shunt regulator allows operation from VCC = 2.3V to 6V directly, or up to 16V with external current-limiting resistor; threshold detection is referenced to a stable 500 mV internal reference with ±1.5% accuracy across temperature. The TMR pin supports programmable timeout (6–14 ms typical with 1 nF) and can be strapped to VCC to bypass timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VUOT Threshold | 500 mV ±1.5% - precise, temperature-stable reference for UV/OV trip point calculation using external resistor dividers |
| ICC Quiescent Current | 44 μA typical - enables always-on supervision in battery-backed or low-power systems without significant load |
| VCC Operating Range | 2.3V to 6V direct supply; >6V requires series resistor - supports wide input range while maintaining regulation and reliability |
| tUOD Propagation Delay | 50–500 μs - ensures fast fault response while rejecting sub-microsecond noise transients |
| tUOTO Timeout Period | 6–14 ms (with 1 nF on TMR) - guarantees minimum reset pulse width for system stabilization after fault clearance |
| Input Bias Current | ±15 nA max - minimizes error in high-impedance resistor-divider networks used for rail scaling |
| VOL Output Low Voltage | 0.01 V at IUV/OV = 100 μA (VCC = 1V) - ensures solid logic-low assertion even during brownout conditions |
Pinout & Package
Package: 10-lead (3mm × 3mm) plastic DFN with exposed pad (Pin 11, optional GND connection). RoHS-compliant, lead-free, tape-and-reel packaged as #TRPBF.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VH1 (Pin 1) | Channel 1 Undervoltage Sense Input | Asserts UV when voltage falls below 500 mV; tied to high-side divider tap for positive rail monitoring |
| VL1 (Pin 2) | Channel 1 Overvoltage Sense Input | Asserts OV when voltage rises above 500 mV; tied to low-side divider tap for same rail |
| VH2 (Pin 3) | Channel 2 Undervoltage Sense Input | Independent second UV monitor channel; supports dual-rail supervision (e.g., 5V + 3.3V) |
| VL2 (Pin 4) | Channel 2 Overvoltage Sense Input | Independent second OV monitor channel; enables simultaneous UV/OV detection on two supplies |
| GND (Pin 5) | Analog/Digital Ground Reference | Common return for all internal circuitry and external timing capacitor (TMR) |
| OV (Pin 6) | Open-Drain Overvoltage Output | Latches low on fault (LTC2913-1); weak pull-up to VCC; supports wired-OR reset bus configurations |
| UV (Pin 7) | Open-Drain Undervoltage Output | Non-latching, timeout-controlled low assertion; identical output structure to OV for consistent interface design |
| LATCH (Pin 8) | OV Latch Clear/Bypass Control | Pull low to enable OV latch; pull high to clear latch and revert OV to UV-like timing behavior |
| TMR (Pin 9) | Reset Timeout Timing Input | Connects to external capacitor (≥10 pF) to set delay; strap to VCC to disable timeout |
| VCC (Pin 10) | Supply Input / Shunt Regulator | Operates as direct supply (≤6V) or shunt-regulated input (>6V); bypass with ≥0.1 μF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent UV/OV monitoring channels | Enables concurrent supervision of two critical rails (e.g., CPU core + I/O) with shared logic outputs and minimal footprint |
| Latching OV output (LTC2913-1 variant) | Ensures persistent fault signaling until explicitly cleared via LATCH pin-critical for safety-critical diagnostics and logging |
| Glitch-filtered comparator architecture | Rejects transients <400 μs (at 1% overdrive), eliminating false resets without adding hysteresis-induced threshold error |
| Guaranteed operation down to VCC = 1V | Provides valid UV assertion and OV blocking during deep brownout-supports robust power sequencing in automotive and industrial environments |
| Adjustable reset timeout with disable option | Capacitor-programmable delay (ms-range) ensures sufficient system settling time; TMR-to-VCC strap disables timing entirely |
Applications
| Server Power Sequencing | Automotive ADAS ECU Monitoring |
|---|---|
|
Use Scenario: Coordinated startup/shutdown of 12V input, 5V intermediate, and 3.3V logic rails in network server PSUs. IC Role / Device Role / Timing Role: Dual-channel supervisor asserts UV/OV to FPGA-based sequencer, enforcing strict voltage order and hold times before release. Use Value: Prevents latch-up and data corruption by ensuring 5V rail stabilizes before enabling 3.3V peripherals-enabled by ±1.5% threshold accuracy and 44 μA quiescent draw. |
Use Scenario: Real-time monitoring of dual power domains (12V camera supply and 3.3V SoC core) in autonomous driving control units. IC Role / Device Role / Timing Role: LTC2913HDD-1#TRPBF provides latched OV signal on 12V rail and timed UV on 3.3V rail to trigger ASIL-B-compliant fail-safe state transition. Use Value: LATCH pin enables persistent fault flagging until diagnostic software confirms root cause-meeting ISO 26262 requirement for detectable, non-transient fault indication. |
| Industrial PLC Backplane Supervision | High-Temperature Telecom Shelf Management |
|
Use Scenario: Continuous monitoring of redundant 24V and 5V backplane supplies in programmable logic controllers operating at 85°C ambient. IC Role / Device Role / Timing Role: Acts as primary voltage guardrail; UV/OV outputs drive opto-isolated reset lines to isolated microcontrollers and FPGA configuration logic. Use Value: H-grade (–40°C to 125°C) operation and guaranteed VCC ≥ 1V functionality ensure reliable supervision under thermal stress-no derating required at full temp range. |
Use Scenario: Supervising 48V DC-DC outputs and 1.8V/3.3V FPGA rails in carrier-grade telecom equipment deployed in uncooled outdoor cabinets. IC Role / Device Role / Timing Role: LTC2913HDD-1#TRPBF's DFN package and low thermal resistance (θJA = 43°C/W) maintain stability during sustained 70°C operation with minimal self-heating. Use Value: Exposed pad (Pin 11) enhances thermal performance and PCB-level EMI suppression-critical for dense, fanless telecom shelf designs meeting NEBS Level 3 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual UV/OV supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2914HDE#TRPBF | Quad UV/OV monitor (4 inputs), same H-grade temp range, 3mm × 3mm DFN, but higher 65 μA ICC | Supports four-rail monitoring (e.g., 12V/5V/3.3V/1.8V); no latch function on OV outputs | Choose LTC2914HDE#TRPBF only if expanding beyond two monitored rails; not drop-in-requires PCB redesign and firmware update. |
| LTC2904HMS8#TRPBF | 3-state dual supply monitor; adjustable tolerance (0.5–5%), fixed 2.5V/3.3V thresholds; MSOP-8, no latch | Designed for simpler dual-rail systems without latching; lacks TMR programmability and VCC shunt regulator | Use LTC2904HMS8#TRPBF where latch is unnecessary and fixed thresholds suffice; smaller package but no VCC >6V support. |
Compared with LTC2914HDE#TRPBF and LTC2904HMS8#TRPBF, the LTC2913HDD-1#TRPBF uniquely combines latching OV, ultra-low 44 μA quiescent current, and guaranteed 1V operation-making it optimal for space-constrained, safety-critical dual-rail systems requiring persistent fault capture and wide supply flexibility.
Availability
LTC2913HDD-1#TRPBF is available at Aetrix Electronics and suitable for automotive ADAS modules, industrial PLCs, and telecom shelf management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2913HDD-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 acquired Linear Technology in 2017 and maintains full technical and manufacturing continuity for the LTC product line, renowned for high-precision analog and power management ICs.
The LTC2913 family was designed specifically for high-reliability, multi-rail voltage supervision in harsh environments-emphasizing accuracy, low power, latch capability, and extended temperature operation for automotive, industrial, and telecom infrastructure.
FAQ
What is the operating temperature range for the LTC2913HDD-1#TRPBF?
The LTC2913HDD-1#TRPBF is rated for –40°C to +125°C (H-grade), validated across this full range for threshold accuracy (±1.5%), propagation delay, and output drive strength. This makes it suitable for under-hood automotive, industrial control, and base station applications where ambient temperatures exceed standard commercial grades.
Does the LTC2913HDD-1#TRPBF support overvoltage monitoring above 6V?
Yes-the LTC2913HDD-1#TRPBF supports VCC up to 16V via its internal 6.5V shunt regulator. For supplies >6V, a series current-limiting resistor must be used to keep input current ≤10mA. The device maintains full UV/OV monitoring functionality regardless of whether VCC is supplied directly or regulated.
How does the LATCH pin function on the LTC2913HDD-1#TRPBF?
On the LTC2913HDD-1#TRPBF, the LATCH pin (Pin 8) controls OV output behavior: pulled low, OV latches low upon overvoltage detection; pulled high, the latch clears and OV behaves like UV with programmable timeout. This enables manual fault acknowledgment or automatic clearing after system recovery-without requiring a power cycle.
Can the LTC2913HDD-1#TRPBF monitor negative voltages?
No-the LTC2913HDD-1#TRPBF is designed exclusively for positive-supply monitoring. Its VHn/VLn inputs accept 0V to 7.5V, and internal comparators reference a 500 mV threshold. For negative rail supervision, Analog Devices recommends the LTC2909 or LTC2914, which support dedicated negative-input configurations.
What is the minimum capacitor value required on the TMR pin of the LTC2913HDD-1#TRPBF?
The TMR pin of the LTC2913HDD-1#TRPBF requires a minimum 10 pF capacitor to ground for stable timeout operation. Values below this may cause erratic timing or failure to assert UV/OV. A 1 nF capacitor yields ~8.5 ms timeout (6–14 ms over temperature); strapping TMR to VCC disables timing entirely.
LTC2913HDD-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- Adjustable/Selectable
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LTC2913HDD-1#TRPBF FAQ
1.How can I place an order for LTC2913HDD-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2913HDD-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 LTC2913HDD-1#TRPBF reliable?
The price and inventory of LTC2913HDD-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 LTC2913HDD-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2913HDD-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2913HDD-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2913HDD-1#TRPBF?
LTC2913HDD-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2913HDD-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 LTC2913HDD-1#TRPBF?
For technical support, including LTC2913HDD-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2913HDD-1#TRPBF requirements.
6.How does Aetrix verify that LTC2913HDD-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2913HDD-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 LTC2913HDD-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2913HDD-1#TRPBF?
All LTC2913HDD-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2913HDD-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 LTC2913HDD-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC2913HDD-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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