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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Supervisors

Analog Devices Inc. LTC2910CDHC#PBF

Name: LTC2910CDHC#PBF
Brand: Analog Devices Inc.
SKU: LTC2910CDHC#PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LTC2910CDHC#PBF

Manufacturer:: Analog Devices Inc.

Category:: Supervisors

Package:: 16-WFDFN Exposed Pad

Datasheet:: LTC2910CDHC#PBF.pdf

Description:: IC SUPERVISOR 8 CHANNEL 16DFN

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Product details

Overview

LTC2910CDHC#PBF 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 complex power systems. It features eight 0.5V threshold inputs with ±1.5% accuracy over 0°C to 70°C, glitch-filtered reset outputs, adjustable timeout via external capacitor, 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 LTC2910CDHC#PBF datasheet, LTC2910CDHC#PBF pinout, LTC2910CDHC#PBF application, or LTC2910CDHC#PBF equivalent, key selection considerations include input polarity configuration via SEL pin, VCC shunt regulation up to 6V, open-drain RST/RST timing behavior, and compatibility with 16-lead DFN (5mm × 3mm) layout constraints.

Technical Context

The LTC2910CDHC#PBF 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 selects polarity for V7/V8 inputs (positive/positive, positive/negative, or negative/negative), enabling mixed-rail monitoring without external components.

Reset assertion is controlled by a programmable timer (6–14ms with 1nF on TMR) and includes UVLO activation below VCC = 1.9–2.1V. The device operates from 2.3V to 6V supply or higher via internal 6.2–7.0V shunt regulator, drawing only 50–100μA quiescent current while guaranteeing RST/RST functionality down to VCC = 1V.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Threshold	0.5V nominal per channel, ±1.5% accuracy over full temperature range - ensures reliable trip points for 12V/5V/3.3V/2.5V/1.8V/1.2V rails with 10% tolerance.
Supply Range	2.3V to 6V direct operation; >6V supported via internal 6.5V shunt regulator - eliminates need for external LDO when deriving from higher-voltage sources like 12V or 48V.
Quiescent Current	50μA typical at 2.3–6V - enables use in always-on power domains without compromising system standby efficiency.
Reset Timeout	Adjustable 6–14ms via external capacitor on TMR pin (e.g., 8.5ms with 1nF) - provides configurable reset pulse width for processor boot sequencing and power-rail settling.
Reference Output	1.000V buffered REF output, ±1.5mV accuracy, ±1mA drive - supplies stable offset for negative-supply monitoring circuits without loading error.
Output Type	Open-drain RST (active-low) and RST (active-high), guaranteed operation down to VCC = 1V - supports wired-OR reset buses and low-voltage brownout detection.
Package	16-lead DFN (5mm × 3mm), exposed pad optional - compact footprint suitable for space-constrained server motherboard and embedded computing layouts.

Pinout & Package

Package: 16-lead plastic DFN (5mm × 3mm), exposed pad (Pin 17) optionally connected to PCB ground.

Pin/Terminal	Circuit Role	Design Meaning
V1–V6 (Pins 1–6)	Positive-supply monitor inputs	Each compares monitored voltage to 0.5V threshold; assert reset if input falls below threshold - used for 12V, 5V, 3.3V, 2.5V, 1.8V, 1.2V rails.
V7, V8 (Pins 7–8)	Polarity-configurable monitor inputs	SEL pin determines whether input monitors positive (Vn < 0.5V) or negative (Vn > 0.5V) supply - enables dual negative rail monitoring (e.g., –5V, –3.3V).
VCC (Pin 16)	Power supply input	Operates as direct supply (2.3–6V) or shunt-regulated input (>6V); guarantees RST/RST function down to 1V - supports wide-input power architectures.
RST, RST (Pins 11–12)	Complementary open-drain reset outputs	RST pulls low on fault; RST pulls high; both held for adjustable timeout after recovery - interfaces directly with microprocessor reset inputs and FPGA configuration logic.
TMR (Pin 15)	Reset timeout timing control	Capacitor-to-ground sets delay (9ms/nF); tied to VCC to bypass - allows precise reset hold time tuning without firmware involvement.
DIS (Pin 13)	Reset output disable	Pulling high disables RST/RST assertion except during VCC UVLO - enables software-controlled reset inhibition during system debug or maintenance.
SEL (Pin 14)	Input polarity select	Three-state (GND/VCC/open) configures V7/V8 polarity combinations - eliminates external resistors or jumpers for mixed positive/negative monitoring.
REF (Pin 10)	Buffered 1V reference output	Sources/sinks ±1mA; drives ≤1nF capacitive load - provides accurate bias for negative-rail resistor dividers without external op-amp.
GND (Pin 9)	Device ground reference	Common return for all analog and digital circuitry; exposed pad may be connected to enhance thermal performance - critical for noise immunity in multi-rail systems.

Key Features

Feature	Design Value
Octal monitoring with ±1.5% threshold accuracy	Enables simultaneous supervision of 8 distinct rails (e.g., 12V, dual 5V, dual 3.3V, 2.5V, 1.8V, 1.2V) without calibration drift across temperature.
Configurable polarity for two inputs via SEL pin	Supports monitoring of up to two negative supplies (e.g., –5V, –3.3V) alongside six positive rails using single IC - reduces BOM count vs. discrete solutions.
Glitch-filtered comparator outputs	Integrates transient rejection at input stage to prevent false resets from noise or ripple - eliminates need for external RC filters on each rail.
Adjustable reset timeout with disable option	External capacitor sets delay (6–14ms); DIS pin allows hardware-level reset suppression - meets processor-specific reset timing requirements and debug workflows.
1V buffered reference with ±1.5mV accuracy	Provides stable, low-impedance bias for negative-monitoring resistor networks - ensures consistent trip points regardless of REF load variation.
Operation down to VCC = 1V with guaranteed RST/RST	Ensures reliable brownout detection and controlled shutdown even during deep undervoltage events - critical for data integrity in storage and networking applications.

Applications

Desktop & Notebook Computers	Network Servers
Use Scenario: Monitoring 12V, dual 5V, dual 3.3V, 2.5V, 1.8V, and 1.2V rails during CPU/GPU power-up sequences. IC Role / Device Role / Timing Role: Voltage supervisor providing synchronized reset assertion across all rails with 8.5ms timeout to ensure stable core voltage before processor release. Use Value: Prevents boot failures caused by out-of-spec rail sequencing or slow-rising supplies, improving system reliability and reducing field returns.	Use Scenario: Supervising redundant 12V, 5V, 3.3V, 2.5V, 1.8V, and 1.2V power modules in blade server chassis. IC Role / Device Role / Timing Role: Octal monitor detecting undervoltage on any module output and asserting system-wide reset within 500μs propagation delay. Use Value: Enables rapid fault containment and graceful failover in high-availability infrastructure without requiring per-rail discrete supervisors.
Core & I/O Voltage Monitors	Industrial Embedded Systems
Use Scenario: Simultaneous monitoring of FPGA core (1.2V), I/O (3.3V), auxiliary (2.5V), and memory (1.8V) supplies in telecom baseband cards. IC Role / Device Role / Timing Role: Single-chip solution replacing four dual-supervisor ICs; SEL pin configures V7/V8 for negative bias rails if present. Use Value: Reduces PCB area by >60% and eliminates inter-IC timing skew between rail monitors - simplifies layout and improves timing margin.	Use Scenario: Supervising 5V, 3.3V, 2.5V, and 1.8V rails in programmable logic controllers with isolated 48V input stage. IC Role / Device Role / Timing Role: VCC shunt regulation allows direct connection to 48V bus via series resistor; RST output triggers watchdog timeout on fault. Use Value: Eliminates need for intermediate DC/DC converter just for supervisor bias - lowers bill-of-materials cost and improves power conversion efficiency.

Desktop & Notebook Computers

Network Servers

Use Scenario: Monitoring 12V, dual 5V, dual 3.3V, 2.5V, 1.8V, and 1.2V rails during CPU/GPU power-up sequences.

IC Role / Device Role / Timing Role: Voltage supervisor providing synchronized reset assertion across all rails with 8.5ms timeout to ensure stable core voltage before processor release.

Use Value: Prevents boot failures caused by out-of-spec rail sequencing or slow-rising supplies, improving system reliability and reducing field returns.

Use Scenario: Supervising redundant 12V, 5V, 3.3V, 2.5V, 1.8V, and 1.2V power modules in blade server chassis.

IC Role / Device Role / Timing Role: Octal monitor detecting undervoltage on any module output and asserting system-wide reset within 500μs propagation delay.

Use Value: Enables rapid fault containment and graceful failover in high-availability infrastructure without requiring per-rail discrete supervisors.

Core & I/O Voltage Monitors

Industrial Embedded Systems

Use Scenario: Simultaneous monitoring of FPGA core (1.2V), I/O (3.3V), auxiliary (2.5V), and memory (1.8V) supplies in telecom baseband cards.

IC Role / Device Role / Timing Role: Single-chip solution replacing four dual-supervisor ICs; SEL pin configures V7/V8 for negative bias rails if present.

Use Value: Reduces PCB area by >60% and eliminates inter-IC timing skew between rail monitors - simplifies layout and improves timing margin.

Use Scenario: Supervising 5V, 3.3V, 2.5V, and 1.8V rails in programmable logic controllers with isolated 48V input stage.

IC Role / Device Role / Timing Role: VCC shunt regulation allows direct connection to 48V bus via series resistor; RST output triggers watchdog timeout on fault.

Use Value: Eliminates need for intermediate DC/DC converter just for supervisor bias - lowers bill-of-materials cost and improves power conversion efficiency.

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage monitoring applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LTC2914	Quad UV/OV monitor with two negative inputs; separate VCC pin; adjustable reset timer; same DFN/SSOP packages.	Supports overvoltage detection on all four inputs - suitable where OV protection is required alongside UV, unlike LTC2910CDHC#PBF's UV-only function.	Select LTC2914 when dual-rail OV monitoring (e.g., 12V, 5V) is mandatory; LTC2910CDHC#PBF remains optimal for pure octal UV monitoring with tighter threshold accuracy.
LTC2908	Six-supply monitor (four fixed, two adjustable thresholds); 8-lead SOT-23 package; no negative monitoring capability; lower pin count.	Lacks polarity-select feature and REF output - cannot monitor negative supplies or support precision negative-rail divider networks.	Choose LTC2908 for space-constrained designs needing fewer rails and no negative monitoring; LTC2910CDHC#PBF is preferred for full 8-rail coverage with mixed polarity support.

Compared with LTC2914 and LTC2908, the LTC2910CDHC#PBF uniquely delivers eight UV inputs with ±1.5% threshold accuracy, integrated 1V REF, and SEL-configurable polarity - making it the only option for high-density, mixed-polarity rail supervision without external components.

Availability

LTC2910CDHC#PBF is available at Aetrix Electronics and suitable for desktop computers, network servers, and industrial embedded systems requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for LTC2910CDHC#PBF 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-reliability analog IC portfolio, emphasizing precision, low-power, and robust performance in power management and signal conditioning.

The LTC2910CDHC#PBF belongs to Linear's voltage supervisor product line, engineered specifically for multi-rail power integrity in computing, communications, and industrial equipment where rail count, accuracy, and layout simplicity are critical.

FAQ

What is the operating temperature range of the LTC2910CDHC#PBF?

The LTC2910CDHC#PBF is rated for 0°C to 70°C ambient operation, as indicated by the 'C' grade suffix. This commercial-grade specification ensures stable performance in desktop, notebook, and non-extended-temperature server environments where ambient conditions remain within standard office or data center ranges. The device maintains ±1.5% threshold accuracy across this full range.

How does the SEL pin configure polarity for V7 and V8 on the LTC2910CDHC#PBF?

The SEL pin on the LTC2910CDHC#PBF is a three-state input: tied to GND configures both V7 and V8 for negative-supply monitoring (reset asserted when voltage exceeds 0.5V); tied to VCC configures both for positive-supply monitoring (reset asserted when voltage falls below 0.5V); left open configures V7 positive and V8 negative. This eliminates external components for mixed-rail setups.

Can the LTC2910CDHC#PBF monitor a 48V input supply directly?

Yes - the LTC2910CDHC#PBF incorporates an internal 6.2–7.0V shunt regulator on the VCC pin. When powered from 48V, a series current-limiting resistor (e.g., 8.25kΩ for ~10mA max) is required to drop excess voltage and keep power dissipation within limits. The device then regulates its own supply and draws only 50–100μA quiescent current.

What is the minimum VCC voltage required for the LTC2910CDHC#PBF to assert valid reset outputs?

The LTC2910CDHC#PBF guarantees functional RST and RST outputs down to VCC = 1V, as specified in the Electrical Characteristics table. Below 1.9–2.1V, the device enters undervoltage lockout (UVLO) mode and asserts RST low/RST high independently of input voltages - enabling reliable brownout detection even during severe supply collapse.

Does the LTC2910CDHC#PBF support overvoltage monitoring?

No - the LTC2910CDHC#PBF is designed exclusively for undervoltage (UV) monitoring on all eight inputs. Each comparator triggers reset when its input falls below (for positive rails) or rises above (for negative rails) the 0.5V threshold. For combined UV/OV monitoring, consider the pin-compatible LTC2914, which supports both functions on four inputs.

LTC2910CDHC#PBF Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 16-WFDFN Exposed Pad

Packaging:: Tube

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-DFN (5x3)

LTC2910CDHC#PBF FAQ

1.How can I place an order for LTC2910CDHC#PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for LTC2910CDHC#PBF 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 LTC2910CDHC#PBF reliable?

The price and inventory of LTC2910CDHC#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2910CDHC#PBF is usually 5 days.

3.What payment methods are accepted for LTC2910CDHC#PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2910CDHC#PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LTC2910CDHC#PBF?

LTC2910CDHC#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LTC2910CDHC#PBF 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 LTC2910CDHC#PBF?

For technical support, including LTC2910CDHC#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2910CDHC#PBF requirements.

6.How does Aetrix verify that LTC2910CDHC#PBF is sourced from the original manufacturer or authorized distributors?

All LTC2910CDHC#PBF 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 LTC2910CDHC#PBF meets industry standards.

7.What is the process for return or replacement of LTC2910CDHC#PBF?

All LTC2910CDHC#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2910CDHC#PBF, 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 LTC2910CDHC#PBF part is unused and in its original packaging.

Return procedure for LTC2910CDHC#PBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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