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Analog Devices Inc. LTC2910HGN#TRPBF
- Part No.:
- LTC2910HGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC2910HGN#TRPBF.pdf
- Description:
- IC SUPERVISOR 8 CHANNEL 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,731
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Product details
Overview
LTC2910HGN#TRPBF from Analog Devices (formerly Linear Technology) is an octal-input voltage supervisor IC designed for simultaneous monitoring of up to eight positive or negative supply rails in high-reliability systems. It features ±1.5% threshold accuracy over –40°C to +125°C, 50μA quiescent current, open-drain RST/RST outputs, and a buffered 1V reference. It is deployed in industrial control units where precise, temperature-stable undervoltage detection across multiple rails prevents system lockup during brownout events.
For engineers reviewing the LTC2910HGN#TRPBF datasheet, LTC2910HGN#TRPBF pinout, LTC2910HGN#TRPBF application, or LTC2910HGN#TRPBF equivalent, key selection criteria include guaranteed reset assertion down to VCC = 1V, glitch-filtered comparator inputs, polarity-selectable V7/V8 inputs via three-state SEL pin, and adjustable timeout via external TMR capacitor - all critical for robust power sequencing in extended-temperature environments.
Technical Context
The LTC2910HGN#TRPBF integrates eight independent comparators referenced to a precision 0.5V internal threshold, each with input leakage ≤±30nA and propagation delay of 50–500μs. Its three-state SEL pin configures V7/V8 polarity (positive/positive, positive/negative, or negative/negative), enabling mixed-rail monitoring without external components.
It employs a shunt-regulated VCC input (6.2–7.0V typical) with UVLO at 1.9–2.1V and hysteresis of 5–50mV, ensuring reliable startup and shutdown behavior. The TMR pin supports externally adjustable reset timeout (6–14ms with 1nF) or bypass mode when tied to VCC, while DIS provides output disable independent of UVLO status.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Vn Threshold | 492–508 mV - ensures accurate undervoltage trip point across full –40°C to +125°C range |
| Threshold Accuracy | ±1.5% - guarantees tight tolerance on all eight inputs without calibration |
| Quiescent Current | 50–100 μA - enables always-on monitoring in battery-backed or low-power systems |
| RST Timeout Range | 6–14 ms - adjustable via external capacitor on TMR pin for flexible reset hold timing |
| VCC Operating Range | 2.3V to 6V direct supply; >6V requires series resistor due to internal 6.2–7.0V shunt regulator |
| REF Output | 0.985–1.020 V - buffered 1V reference drives up to 1mA, used for negative rail offset scaling |
| Input Leakage | ±30 nA max - minimizes error in high-impedance resistive divider networks |
Pinout & Package
Package: 16-lead GN16 (SSOP, 0.150-inch narrow body). Exposed pad optional GND connection. Thermal resistance θJA = 110°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V1–V6 | Positive-supply monitor inputs | Assert reset when voltage falls below 0.5V; tied to VCC if unused |
| V7, V8 | Polarity-configurable monitor inputs | SEL pin selects positive/negative mode; tied to VCC (pos) or GND (neg) if unused |
| SEL | Three-state polarity select | Connect to VCC/GND/open to set V7/V8 polarity per Table 1 in datasheet |
| DIS | Reset output disable | Pull high to inhibit RST/RST assertion except during VCC UVLO |
| TMR | Reset timeout timer control | Capacitor to GND sets delay; tie to VCC to bypass timer |
| RST, RST | Open-drain reset outputs | RST active-low, RST active-high; both guaranteed functional down to VCC = 1V |
| REF | Buffered 1V reference output | Sources/sinks ±1mA; used for negative rail sensing biasing |
| VCC | Supply input / shunt regulator | Operates as direct supply ≤6V; >6V requires current-limiting resistor |
| GND | Device ground reference | Common return for all analog and digital circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Octal input monitoring | Simultaneously supervises eight rails - six fixed positive, two polarity-selectable - reducing BOM count vs. discrete supervisors |
| Glitch-immune comparators | Integrated low-pass filtering eliminates false resets from transient noise without adding hysteresis-induced trip-point error |
| Temperature-stable threshold | ±1.5% accuracy maintained from –40°C to +125°C - eliminates need for derating in automotive/industrial designs |
| Adjustable reset timeout | External capacitor on TMR pin sets delay from ~6ms to >200ms - supports diverse processor boot timing requirements |
| Low-voltage operation guarantee | RST/RST fully functional at VCC ≥ 1V - ensures fail-safe reset assertion during deep brownout conditions |
Applications
| Industrial PLC Power Sequencing | Automotive ADAS Domain Controller |
|---|---|
Use Scenario: Monitoring 12V, 5V, 3.3V, 2.5V, 1.8V, and 1.2V rails in a programmable logic controller with extended ambient temperature range. IC Role / Device Role / Timing Role: Centralized voltage supervisor asserting synchronized reset to microcontroller and FPGA upon any rail dropout. Use Value: Prevents partial initialization and state corruption by enforcing minimum valid-voltage window before release, leveraging ±1.5% threshold accuracy across –40°C to +125°C. | Use Scenario: Supervising dual 5V supplies, 3.3V I/O, 1.8V core, and –5V analog bias in radar processing unit exposed to under-hood temperatures. IC Role / Device Role / Timing Role: Polarity-selectable V7/V8 inputs monitor negative analog supply; SEL pin configures one input for –5V, the other for –3.3V without external components. Use Value: Eliminates need for separate negative-supply supervisors and level-shifting circuitry, reducing layout area and component count in space-constrained ECU modules. |
| Telecom Base Station PSU | Medical Imaging Power Management |
Use Scenario: Eight-rail monitoring in 48V-powered telecom shelf with distributed 5V, 3.3V, 2.5V, 1.8V, and 1.2V DC-DC outputs. IC Role / Device Role / Timing Role: VCC shunt regulator accepts 48V input directly (with series resistor); TMR capacitor sets 200ms reset hold for orderly FPGA reconfiguration after AC loss. Use Value: Enables single-chip supervision of entire power tree, including high-side 48V feed, while maintaining <100μA quiescent current during standby. | Use Scenario: Monitoring critical 12V, 5V, 3.3V, 2.5V, 1.8V, and 1.2V supplies in MRI subsystem requiring zero-reset-failure reliability. IC Role / Device Role / Timing Role: DIS pin disables reset outputs during controlled firmware updates; UVLO ensures immediate reset on VCC collapse below 2.1V. Use Value: Guarantees deterministic system recovery after power interruption, meeting IEC 62304 Class C software safety requirements via hardware-enforced reset integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2914IGN#TRPBF | Quad UV/OV monitor with two negative inputs; includes watchdog timer; 16-lead SSOP | Supports overvoltage detection and watchdog timeout - not available in LTC2910HGN#TRPBF | Select when OV protection or system-level watchdog functionality is required alongside voltage supervision |
| LTC2908CMS8E#TRPBF | Six-supply monitor (four fixed, two adjustable); 8-lead MSOP; no negative monitoring capability | Lacks polarity-selectable inputs and REF output - cannot monitor negative rails | Choose for compact, cost-sensitive designs needing only positive-rail supervision with fewer inputs |
Compared with LTC2914IGN#TRPBF, the LTC2910HGN#TRPBF offers higher channel count (8 vs. 4) and dedicated negative monitoring flexibility but lacks OV detection and watchdog. Versus LTC2908CMS8E#TRPBF, it provides full octal coverage and negative rail support at the cost of larger SSOP package - making it optimal for complex multi-rail systems demanding extended temperature operation and mixed-polarity supervision.
Availability
LTC2910HGN#TRPBF is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS, telecom infrastructure, and medical imaging equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2910HGN#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 its high-performance analog and power management portfolio with rigorous qualification standards for industrial, automotive, and aerospace applications.
The LTC2910HGN#TRPBF belongs to Linear's precision voltage supervisor family, engineered specifically for fault-tolerant power monitoring in systems where simultaneous multi-rail validation, temperature stability, and low-power operation are mandatory design constraints.
FAQ
What is the operating temperature range of the LTC2910HGN#TRPBF?
The LTC2910HGN#TRPBF is rated for –40°C to +125°C, matching the H-grade specification. This extended range is validated across all electrical parameters including ±1.5% threshold accuracy, 50–100μA quiescent current, and 6–14ms reset timeout - making it suitable for under-hood automotive and industrial control applications where ambient temperatures exceed standard commercial grades.
How does the SEL pin configure polarity for V7 and V8 on the LTC2910HGN#TRPBF?
The SEL pin on the LTC2910HGN#TRPBF is a three-state input that selects polarity for V7 and V8: tied to VCC configures both as positive monitors (trip on <0.5V), left open configures V7 positive and V8 negative (trip on >0.5V), and tied to GND configures both as negative monitors. This eliminates external resistors or jumpers, enabling flexible mixed-rail supervision within a single LTC2910HGN#TRPBF device.
Can the LTC2910HGN#TRPBF monitor a 48V supply directly?
Yes - the LTC2910HGN#TRPBF's VCC pin incorporates an internal 6.2–7.0V shunt regulator. To monitor a 48V supply, connect it to VCC through a series current-limiting resistor (e.g., 8.25kΩ for ~4.6mA) to keep terminal current ≤10mA. This allows direct high-voltage supervision without external regulators, as demonstrated in Typical Application TA05 in the datasheet.
What is the minimum VCC voltage required for valid RST/RST output operation on the LTC2910HGN#TRPBF?
The LTC2910HGN#TRPBF guarantees functional RST and RST outputs down to VCC = 1V. Below this, behavior is unspecified. At VCC = 1V, VOL is guaranteed ≤0.15V for RST sink, and VOH ≥1V for RST weak pull-up - enabling fail-safe reset assertion during severe brownout conditions before system power collapses completely.
Does the LTC2910HGN#TRPBF support overvoltage detection?
No - the LTC2910HGN#TRPBF is strictly an undervoltage monitor. All eight inputs detect when voltage falls below the 0.5V threshold (or exceeds it for negative configurations). Overvoltage detection requires alternative devices such as the LTC2914IGN#TRPBF, which explicitly supports UV/OV monitoring on all four inputs.
LTC2910HGN#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 8
- Voltage - Threshold:
- 8 Selectable Threshold Combinations
- Output:
- Open Drain or Open Collector
- Reset:
- Active High/Active Low
- Reset Timeout:
- 6ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LTC2910HGN#TRPBF FAQ
1.How can I place an order for LTC2910HGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2910HGN#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 LTC2910HGN#TRPBF reliable?
The price and inventory of LTC2910HGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2910HGN#TRPBF is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2910HGN#TRPBF transactions.
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4.How is shipping managed for LTC2910HGN#TRPBF?
LTC2910HGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2910HGN#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 LTC2910HGN#TRPBF?
For technical support, including LTC2910HGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2910HGN#TRPBF requirements.
6.How does Aetrix verify that LTC2910HGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2910HGN#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 LTC2910HGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2910HGN#TRPBF?
All LTC2910HGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2910HGN#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 LTC2910HGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC2910HGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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