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Analog Devices Inc. LTC2910CGN#TRPBF
- Part No.:
- LTC2910CGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC2910CGN#TRPBF.pdf
- Description:
- IC SUPERVISOR 8 CHANNEL 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,486
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Product details
Overview
LTC2910CGN#TRPBF from Analog Devices (formerly Linear Technology) is an octal-input voltage supervisor IC designed for precise undervoltage monitoring of multiple positive and negative supply rails in power management systems. It features eight 0.5V threshold inputs with ±1.5% accuracy over 0°C to 70°C, glitch-filtered reset outputs, pin-selectable polarity for V7/V8, and a buffered 1V reference. It is used in desktop/notebook computers and network servers for core/I/O rail supervision.
For engineers reviewing the LTC2910CGN#TRPBF datasheet, LTC2910CGN#TRPBF pinout, LTC2910CGN#TRPBF application, or LTC2910CGN#TRPBF equivalent, key selection considerations include input threshold accuracy, dual-polarity support via SEL pin, adjustable reset timeout via TMR capacitor, open-drain RST/RST outputs, and operation down to VCC = 1V with guaranteed reset assertion.
Technical Context
The LTC2910CGN#TRPBF integrates eight independent comparators referenced to a stable 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.
Reset timing is controlled by an external capacitor on the TMR pin (6–14ms typical with 1nF), while DIS disables RST/RST outputs except during VCC UVLO. The device includes a 1V buffered reference (±1.5mV accuracy) capable of sourcing/sinking ±1mA and a VCC shunt regulator (6.2–7.0V) for operation up to 48V supplies with series current-limiting resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Vn Threshold | 0.5V nominal, ±1.5% accuracy over full temperature range - ensures tight trip-point control for 10% tolerance rails like 12V, 5V, 3.3V. |
| Supply Range | VCC = 2.3V to 6V direct; up to 48V with external series resistor - supports wide-input industrial and telecom power systems. |
| Quiescent Current | 50μA typical - enables always-on monitoring in battery-backed or low-power embedded systems. |
| RST Timeout | Adjustable 6–14ms via TMR capacitor (e.g., 8.5ms with 1nF) - guarantees minimum reset pulse width for processor/system stabilization. |
| Output Type | Open-drain RST (active-low) and RST (active-high) - allows wired-OR reset bus sharing and flexible pull-up configuration. |
| Reference Output | 1V buffered REF (±1.5mV accuracy, ±1mA drive) - provides stable offset for negative-supply monitoring networks. |
| UVLO Threshold | VCC UVLO at 1.9–2.1V with 5–50mV hysteresis - ensures clean power-on reset initiation before internal circuitry becomes active. |
Pinout & Package
Package: 16-lead plastic SSOP (GN16), 5.0mm × 4.4mm body, 0.635mm pitch, exposed pad optional for thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V1–V6 (Pins 1–6) | Positive-only voltage inputs | Assert reset when voltage falls below 0.5V; tied to VCC if unused. |
| V7, V8 (Pins 7–8) | Polarity-configurable inputs | Reset triggered when <0.5V (positive mode) or >0.5V (negative mode), per SEL state. |
| SEL (Pin 14) | Three-state polarity select | GND/VCC/open sets V7/V8 polarity combination - no external resistors needed. |
| TMR (Pin 15) | Reset timeout capacitor node | Connect CTMR to GND for adjustable delay; tie to VCC to bypass timer. |
| DIS (Pin 13) | Reset output disable | Pull high to inhibit RST/RST (except during VCC UVLO); weak internal 2μA pull-down. |
| RST, RST (Pins 11–12) | Complementary open-drain outputs | RST sinks current when asserted; RST pulls weakly to VCC - supports wired-OR and level-shifting. |
| REF (Pin 10) | Buffered 1V reference output | Drives divider networks for negative rail monitoring; stable to 1nF capacitive load. |
| VCC (Pin 16) | Supply input / shunt regulator | Operates directly ≤6V; regulates at 6.2–7.0V above 6V with external current-limiting resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Octal input monitoring | Simultaneously supervises eight independent rails (e.g., 12V, dual 5V, dual 3.3V, 2.5V, 1.8V, 1.2V) in one 16-pin SSOP package. |
| Polarity-selectable inputs | V7/V8 polarity set by SEL pin state - enables monitoring of both positive and negative supplies (e.g., –5V, –3.3V) without external op-amps. |
| Glitch-immune comparator outputs | Integrated low-pass filtering prevents false resets from transient noise on monitored rails - eliminates need for external RC filters. |
| Adjustable reset timeout | Capacitor-programmable delay (6–14ms) ensures reliable system reset hold time after all rails stabilize - configurable per application needs. |
| Low-voltage operation guarantee | Valid RST/RST assertion down to VCC = 1V - supports brown-out detection and safe shutdown in failing power conditions. |
Applications
| Desktop Computer Power Sequencing | Notebook Computer Battery Backup |
|---|---|
Use Scenario: Monitoring 12V, dual 5V, dual 3.3V, 2.5V, 1.8V, and 1.2V rails during cold boot and thermal throttling events. IC Role / Device Role / Timing Role: Octal voltage supervisor asserting synchronized RST/RST only after all rails exceed their 0.5V-referenced thresholds with 8.5ms timeout. Use Value: Eliminates discrete supervisor ICs and reduces BOM count by consolidating eight rail monitors into one GN16 package. | Use Scenario: Supervising main 3.3V/5V supplies and backup coin-cell voltage during AC loss and battery switchover. IC Role / Device Role / Timing Role: Uses REF output and SEL-configured V7/V8 to monitor both positive main rails and negative bias rails in battery-management circuitry. Use Value: Enables accurate undervoltage detection down to VCC = 1V, ensuring clean reset before battery depletion causes data corruption. |
| Network Server Core Voltage Monitoring | Industrial PLC I/O Module Supply Integrity |
Use Scenario: Verifying stability of CPU core (1.2V), memory (1.8V), PCIe (3.3V), and auxiliary (5V, 12V) rails under dynamic load transients. IC Role / Device Role / Timing Role: Leverages ±1.5% threshold accuracy and glitch filtering to avoid spurious resets during high di/dt switching events. Use Value: Guarantees system reliability in mission-critical infrastructure where false resets cause service interruption. | Use Scenario: Monitoring isolated 24V field power, 5V logic, 3.3V FPGA, and –12V analog rails in harsh EMI environments. IC Role / Device Role / Timing Role: Uses DIS pin to gate RST/RST during firmware updates, preventing unintended resets while maintaining UVLO safety. Use Value: Provides fail-safe supervision with programmable disable and robust noise immunity for long-lifecycle industrial deployments. |
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; separate VCC pin; adjustable reset timer; 16-lead SSOP/DFN. | Supports overvoltage + undervoltage detection per channel; higher channel count per pin but fewer total inputs (4 vs 8). | Select when OV fault detection is required alongside UV, or when board space allows trade-off of channel count for dual-threshold capability. |
| LTC2908CMS8E#TRPBF | Six-supply monitor (four fixed, two adjustable); 8-lead MSOP; no negative monitoring; lower quiescent current (35μA). | Limited to positive rails only; smaller footprint but lacks SEL polarity control and REF output. | Select for cost-sensitive, space-constrained designs monitoring only positive supplies with simpler divider networks. |
Compared with LTC2910CGN#TRPBF, LTC2914IGN#TRPBF adds overvoltage detection and separate VCC but reduces input count, while LTC2908CMS8E#TRPBF offers smaller size and lower ICC but omits negative monitoring and buffered reference - making LTC2910CGN#TRPBF optimal for mixed-polarity, high-channel-count, reference-dependent applications.
Availability
LTC2910CGN#TRPBF is available at Aetrix Electronics and suitable for desktop computers, network servers, and industrial PLCs requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC2910CGN#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC2910CGN#TRPBF belongs to Linear's precision voltage supervisor product line, engineered for high-accuracy, multi-rail power integrity monitoring in computing, communications, and industrial systems where reliability and tight threshold tolerance are critical.
FAQ
What is the operating temperature range of the LTC2910CGN#TRPBF?
The LTC2910CGN#TRPBF is rated for 0°C to 70°C ambient operation (Commercial grade). This is confirmed by the "C" suffix in the part number and specified in the Absolute Maximum Ratings table, where LTC2910C denotes the commercial temperature grade. All key electrical parameters - including threshold accuracy (±1.5%), supply current (50μA), and reset timeout - are guaranteed across this full range.
Can the LTC2910CGN#TRPBF monitor negative voltages, and how is polarity configured?
Yes, the LTC2910CGN#TRPBF can monitor negative voltages using V7 and V8 inputs. Polarity is configured via the three-state SEL pin: tied to GND for both negative, VCC for both positive, or left open for V7 positive / V8 negative. This is implemented using internal decoding and requires no external components. The REF pin (1V buffered output) serves as the offset reference for negative-monitoring resistor dividers.
What is the function of the TMR pin on the LTC2910CGN#TRPBF, and how is reset timeout adjusted?
The TMR pin on the LTC2910CGN#TRPBF sets the reset timeout period via an external capacitor to GND. With CTMR = 1nF, tRST = 8.5ms (6–14ms typical range); timeout scales linearly at ~9ms/nF. Tying TMR to VCC disables the timer, causing immediate RST/RST deassertion once all inputs recover. The pin must have ≥10pF capacitance or be strapped to VCC - floating is not allowed.
Does the LTC2910CGN#TRPBF provide a buffered reference output, and what are its drive capabilities?
Yes, the LTC2910CGN#TRPBF provides a buffered 1V reference at the REF pin (Pin 10). It maintains ±1.5mV accuracy over temperature and can source or sink up to ±1mA DC load current. It drives capacitive loads up to 1nF stably; larger capacitances may cause oscillation. The REF output is essential for configuring negative-supply monitoring networks and is disabled only when the pin is left unconnected.
How does the DIS pin affect reset behavior on the LTC2910CGN#TRPBF during normal operation and UVLO?
When DIS is pulled high, the LTC2910CGN#TRPBF inhibits RST and RST assertion for all input faults - outputs remain in their default high-impedance state. However, during VCC undervoltage lockout (UVLO, <1.9V), DIS is overridden: RST asserts low and RST asserts high immediately, and they deassert as soon as VCC recovers above UVLO hysteresis - no timeout applies. DIS has a 2μA internal pull-down, so it defaults to enabled when left open.
LTC2910CGN#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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
LTC2910CGN#TRPBF FAQ
1.How can I place an order for LTC2910CGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2910CGN#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 LTC2910CGN#TRPBF reliable?
The price and inventory of LTC2910CGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2910CGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2910CGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2910CGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2910CGN#TRPBF?
LTC2910CGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2910CGN#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 LTC2910CGN#TRPBF?
For technical support, including LTC2910CGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2910CGN#TRPBF requirements.
6.How does Aetrix verify that LTC2910CGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2910CGN#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 LTC2910CGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2910CGN#TRPBF?
All LTC2910CGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2910CGN#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 LTC2910CGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC2910CGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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