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Analog Devices Inc. LTC2913HMS-1#TRPBF
- Part No.:
- LTC2913HMS-1#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2913HMS-1#TRPBF.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,884
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Product details
Overview
LTC2913HMS-1#TRPBF from Analog Devices (acquired Linear Technology) is a dual-input, latching overvoltage/undervoltage supervisor IC designed for simultaneous monitoring of two independent power rails in high-reliability systems. It features ±1.5% threshold accuracy, 44μA quiescent current, open-drain UV/OV outputs, and guaranteed operation down to VCC = 1V. Used in industrial servers and automotive control units where precise fault detection and latch-on-OV are critical.
For engineers reviewing the LTC2913HMS-1#TRPBF datasheet, LTC2913HMS-1#TRPBF pinout, LTC2913HMS-1#TRPBF application, or LTC2913HMS-1#TRPBF equivalent, key selection considerations include its -40°C to 125°C operating range, MSOP-10 package, latching OV behavior (LATCH pin controlled), adjustable reset timeout via external capacitor, and dual-VH/VL input architecture enabling independent UV/OV trip setting per rail.
Technical Context
The LTC2913HMS-1#TRPBF implements two independent comparator pairs (VH1/VL1 and VH2/VL2), each referencing a common 500mV internal threshold with ±1.5% accuracy across temperature. Its latching OV output is controlled by the LATCH pin: low enables latch-on-fault, high clears latch and enables timeout-based OV assertion like UV.
Glitch immunity is achieved via internal low-pass filtering on each comparator output-no external hysteresis required-ensuring reliable reset generation against transient noise. The TMR pin supports externally programmable timeout (6–14ms typical with 1nF), while VCC operates as a shunt regulator above 6V (6.6V typ) with built-in UVLO at 2.0V (±0.1V hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V to 6V direct supply; >6V requires series resistor due to 6.6V internal shunt regulator |
| Threshold Accuracy | ±1.5% over –40°C to 125°C - enables tight 5V ±10% supply monitoring without calibration |
| Quiescent Current | 44μA typical - supports always-on monitoring in battery-backed or low-power systems |
| UV/OV Output Type | Open-drain with weak internal pull-up to VCC - allows wired-OR reset bus and level shifting |
| Reset Timeout Range | 6ms to 14ms (typical) with 1nF TMR capacitor - ensures minimum reset pulse width for system stabilization |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| Input Leakage | ±15nA max (–40°C to 125°C) - minimizes error in high-impedance resistor-divider monitoring networks |
Pinout & Package
Package: 10-Lead MSOP (3mm × 3mm), RoHS-compliant, exposed pad optional for thermal enhancement. Pin 1 marked with dot; pin 11 (exposed pad) not present in MSOP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VH1 (Pin 1) | Undervoltage sense input 1 | Asserts UV when voltage drops below 0.5V threshold; tie to VCC if unused |
| VL1 (Pin 2) | Overvoltage sense input 1 | Asserts OV when voltage rises above 0.5V threshold; tie to GND if unused |
| VH2 (Pin 3) | Undervoltage sense input 2 | Independent second UV channel; identical function to VH1 |
| VL2 (Pin 4) | Overvoltage sense input 2 | Independent second OV channel; identical function to VL2 |
| GND (Pin 5) | Ground reference | Analog and digital ground return; must be low-impedance connection |
| OV (Pin 6) | Latching overvoltage output | Open-drain active-low; latched low until LATCH pin pulled high (LTC2913-1 variant) |
| UV (Pin 7) | Undervoltage output | Open-drain active-low; timeout-controlled assertion after all VH inputs recover |
| LATCH (Pin 8) | OV latch clear/bypass control | Pull low to enable latch-on-OV; pull high to clear latch and enable timeout behavior |
| TMR (Pin 9) | Reset timeout timing capacitor node | Connect external capacitor (≥10pF) to GND to set delay; tie to VCC to bypass |
| VCC (Pin 10) | Supply input / shunt regulator | Accepts 2.3–6V directly; regulates >6V supplies via internal 6.6V shunt (max 10mA) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent UV/OV monitoring channels | Enables simultaneous supervision of 5V and 3.3V rails using single IC - reduces BOM count and PCB area |
| Latching OV output with hardware-clear capability | LATCH pin provides deterministic fault capture and manual recovery - eliminates need for software polling |
| Guaranteed operation at VCC ≥ 1V | Ensures valid UV assertion during brown-out and power-down sequences - critical for safe shutdown |
| Glitch-filtered comparators (no external hysteresis) | Internal RC filtering rejects transients <700μs at 1% overdrive - prevents false resets in noisy environments |
| Adjustable reset timeout (6–14ms typical) | CTMR capacitor sets precise hold time - meets JEDEC JESD85 tRST min requirements for microcontrollers |
Applications
| Industrial PLC Power Monitoring | Automotive ADAS Domain Controller |
|---|---|
|
Use Scenario: Continuous supervision of 12V main and 5V auxiliary rails in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Dual-channel UV/OV supervisor asserting latched OV on 12V overvoltage and timed UV on 5V undervoltage. Use Value: Prevents field-programmable gate array (FPGA) configuration corruption during rail faults; latch ensures fault persistence until operator intervention. |
Use Scenario: Fault detection for camera and radar sensor power domains in autonomous driving ECUs. IC Role / Device Role / Timing Role: Monitors 3.3V imaging sensor supply and 1.8V processor core rail with independent thresholds and latching OV on safety-critical 3.3V line. Use Value: Meets ASIL-B diagnostic coverage requirements via hardware-latched fault signaling - no software dependency for critical OV events. |
| Telecom Base Station PSU | Medical Imaging Power Sequencing |
|
Use Scenario: Redundant 48V DC-DC converter output monitoring in 5G radio unit power supplies. IC Role / Device Role / Timing Role: Uses VH1/VL1 to supervise primary 48V rail and VH2/VL2 for backup 48V rail, with shared OV/UV outputs. Use Value: Enables automatic switchover initiation upon OV detection while maintaining clean reset timing via TMR-configured timeout. |
Use Scenario: Sequenced validation of high-voltage X-ray generator rails (±15V, +24V) before exposure cycle activation. IC Role / Device Role / Timing Role: Configures VH1/VL1 for +24V UV/OV and VH2/VL2 for –15V monitoring using external resistive dividers. Use Value: Guarantees all rails stabilize within tolerance before enabling high-energy subsystem - prevents tube arcing and image artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual UV/OV monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2913IMS-1#TRPBF | Same functionality and pinout; rated for –40°C to 85°C (vs. H-grade –40°C to 125°C) | Not suitable for under-hood or high-ambient industrial enclosures requiring full H-grade temp range | Select LTC2913HMS-1#TRPBF when operation beyond 85°C ambient is required; otherwise IMS-1 offers cost advantage |
| LTC2914HDD-1#TRPBF | Quad-input UV/OV monitor in 3×3mm DFN; supports up to two negative voltage rails; no LATCH pin | Lacks hardware latch - uses timeout-only OV assertion; adds negative rail support but increases complexity | Choose LTC2914HDD-1 only when monitoring >2 rails or negative supplies is needed; LTC2913HMS-1#TRPBF is simpler and more cost-effective for dual-rail use |
Compared with LTC2913IMS-1#TRPBF, the LTC2913HMS-1#TRPBF delivers extended high-temperature reliability essential for automotive and industrial edge nodes; compared with LTC2914HDD-1#TRPBF, it provides deterministic latch-on-OV behavior in a smaller footprint with lower design overhead for standard dual-positive-rail applications.
Availability
LTC2913HMS-1#TRPBF is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS modules, and telecom infrastructure requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2913HMS-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 product support, qualification, and manufacturing continuity for the LTC portfolio. Linear pioneered precision analog ICs for power management and supervisory functions.
The LTC2913HMS-1#TRPBF belongs to Linear's high-accuracy voltage supervisor family, engineered specifically for mission-critical power monitoring in automotive, industrial, and communications equipment where latch-on-fault and wide-temperature operation are mandatory.
FAQ
What is the function of the LATCH pin on the LTC2913HMS-1#TRPBF?
The LATCH pin on the LTC2913HMS-1#TRPBF controls the overvoltage output behavior: when pulled low, the OV pin latches low upon detection of any overvoltage condition and remains asserted until the LATCH pin is actively pulled high. This provides hardware-level fault persistence without software intervention. When held high, OV behaves identically to UV - asserting low during fault and releasing after the TMR-configured timeout expires. The LTC2913HMS-1#TRPBF is the -1 variant, so this latching functionality is inherent and enabled by default via LATCH pin control.
Does the LTC2913HMS-1#TRPBF support monitoring of negative voltages?
No, the LTC2913HMS-1#TRPBF does not support direct negative voltage monitoring. Its VH and VL inputs are referenced to GND and operate only with positive input signals; applying negative voltage violates Absolute Maximum Ratings (–0.3V min). For negative rail supervision, Analog Devices recommends the LTC2914HDD-1#TRPBF, which includes dedicated negative-input circuitry. The LTC2913HMS-1#TRPBF is strictly intended for dual positive-rail UV/OV monitoring using resistor-divider networks.
How is the reset timeout period set on the LTC2913HMS-1#TRPBF?
The reset timeout period on the LTC2913HMS-1#TRPBF is set by connecting an external capacitor (CTMR) between the TMR pin (Pin 9) and GND. The timeout follows CTMR × 115 ns/pF - e.g., a 1nF capacitor yields ~8.5ms typical timeout. The TMR pin must have ≥10pF load or be tied to VCC to bypass timing. Capacitor leakage must stay below 1.3μA to avoid timing drift. This adjustable timeout ensures the UV and OV outputs remain asserted long enough for downstream systems (e.g., MCUs) to complete safe state transitions before release. The LTC2913HMS-1#TRPBF datasheet specifies 6–14ms range over temperature with 1nF.
Can the LTC2913HMS-1#TRPBF operate from a 12V supply?
Yes, the LTC2913HMS-1#TRPBF can operate from a 12V supply, but only with an external current-limiting resistor on the VCC pin. Internally, VCC functions as a 6.6V shunt regulator; exceeding 6V without limiting risks exceeding the 10mA absolute maximum terminal current. A series resistor (e.g., 10kΩ for ~0.6mA bias) ensures safe operation. Direct connection of 12V to VCC without current limiting will damage the LTC2913HMS-1#TRPBF. For unregulated high-voltage inputs, always calculate RZ using (12V − 6.6V)/10mA = 540Ω minimum.
What is the purpose of the 0.5V internal reference in the LTC2913HMS-1#TRPBF?
The 0.5V internal reference in the LTC2913HMS-1#TRPBF serves as the fixed comparison threshold for all four sense inputs (VH1, VL1, VH2, VL2). Each input is compared against this precise, temperature-stable 0.5V reference - enabling consistent UV detection when VHn < 0.5V and OV detection when VLn > 0.5V. Resistor-divider networks scale the monitored rail voltage to match this 0.5V point, allowing flexible trip-point programming (e.g., 5V UV at 4.5V = 0.5V × 9). The ±1.5% threshold accuracy over –40°C to 125°C is specified relative to this internal 0.5V reference, making the LTC2913HMS-1#TRPBF highly predictable in real-world thermal environments.
LTC2913HMS-1#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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-MSOP
LTC2913HMS-1#TRPBF FAQ
1.How can I place an order for LTC2913HMS-1#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2913HMS-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 LTC2913HMS-1#TRPBF reliable?
The price and inventory of LTC2913HMS-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 LTC2913HMS-1#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2913HMS-1#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2913HMS-1#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2913HMS-1#TRPBF?
LTC2913HMS-1#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2913HMS-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 LTC2913HMS-1#TRPBF?
For technical support, including LTC2913HMS-1#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2913HMS-1#TRPBF requirements.
6.How does Aetrix verify that LTC2913HMS-1#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2913HMS-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 LTC2913HMS-1#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2913HMS-1#TRPBF?
All LTC2913HMS-1#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2913HMS-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 LTC2913HMS-1#TRPBF part is unused and in its original packaging.
Return procedure for LTC2913HMS-1#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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