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Analog Devices Inc. LTC2960HDC-3#TRPBF
- Part No.:
- LTC2960HDC-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2960HDC-3#TRPBF.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,777
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Product details
Overview
LTC2960HDC-3#TRPBF from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage dual-threshold voltage supervisor IC designed for battery and regulator monitoring in harsh environments. It features 850nA quiescent current, 2.5V–36V VCC operating range, ±2mV ADJ/IN+ threshold matching, 200ms fixed reset timeout, and active pull-up RST/OUT outputs referenced to DVCC. It is used in automotive battery management systems to detect low-voltage brownout and initiate controlled shutdown before deep discharge.
For engineers reviewing the LTC2960HDC-3#TRPBF datasheet, LTC2960HDC-3#TRPBF pinout, LTC2960HDC-3#TRPBF application, or LTC2960HDC-3#TRPBF equivalent, key selection criteria include its –40°C to 125°C extended temperature grade, 1.5% max threshold accuracy over temperature, configurable IN+/ADJ thresholds via external resistive dividers, and DVCC-referenced push-pull output logic compatible with 1.6V–5.5V logic supplies.
Technical Context
The LTC2960HDC-3#TRPBF integrates two independent comparators: one monitors the ADJ input for reset assertion (with 2.5% hysteresis), and the second monitors IN+ for auxiliary voltage detection (with 5% hysteresis). Its internal 400mV reference enables precise threshold setting across wide input ranges using external resistor networks.
Unlike open-drain variants (LTC2960-1/-2), the LTC2960HDC-3#TRPBF replaces the RT pin with DVCC to support active pull-up outputs-RST and OUT drive to DVCC when high, eliminating external pull-up resistors and reducing static power. DVCC grounding reconfigures outputs as open-drain, enabling 36V-compatible interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.5V to 36V - supports direct connection to multicell Li-ion, lead-acid, or industrial DC rails without regulation. |
| Quiescent Current | 850nA max at 36V - enables >10-year battery life in always-on monitoring applications. |
| Threshold Accuracy | ±1.5% over –40°C to 125°C - ensures reliable reset assertion across automotive under-hood thermal extremes. |
| Reset Timeout | 200ms fixed - provides sufficient time for supply stabilization and microcontroller initialization after recovery. |
| Output Type | DVCC-referenced active pull-up - eliminates external pull-ups, reduces BOM count, and improves rise time vs. open-drain alternatives. |
| Input Leakage | ±0.1nA at –40°C to 85°C - allows use of >10MΩ resistor dividers with <0.1% error, minimizing power loss in high-impedance sensing. |
| Operating Temp | –40°C to 125°C - qualified for automotive engine compartment and industrial control cabinet deployment. |
Pinout & Package
Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (pin 9), RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; UVLO disables outputs below 1.85V; bypass with 0.1µF capacitor required. |
| DVCC | Logic supply reference | Defines RST/OUT high-level voltage (1.6V–5.5V); grounding converts outputs to open-drain mode. |
| RST | Reset status output | Active-low open-drain or DVCC-referenced push-pull; asserts low when ADJ falls below threshold + hysteresis. |
| OUT | Auxiliary comparator output | Active-low open-drain or DVCC-referenced push-pull; asserts low when IN+ falls below threshold + 5% hysteresis. |
| IN+ | Non-inverting threshold input | Configured via resistor divider; monitors rising/falling voltage conditions for secondary fault detection (e.g., low-battery warning). |
| ADJ | Reset threshold adjustment input | Primary reset trigger point; tied to resistor divider; 400mV internal reference sets falling threshold. |
| MR | Manual reset input | Pulled low to force RST assertion; 0.4V logic threshold; supports push-button or MCU-driven reset initiation. |
| GND | Device ground reference | Common return for VCC, DVCC, and all inputs/outputs; exposed pad may be connected to PCB GND for thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-power operation | 850nA max ICC enables multi-year battery life in remote sensors and telematics modules. |
| Dual independent comparators | ADJ for primary reset + IN+ for secondary event (e.g., low-battery interrupt) - supports layered system supervision. |
| Configurable output logic | DVCC pin selects between active pull-up (low power, fast rise) or open-drain (high-voltage compatibility) - no redesign needed for different host interfaces. |
| Extended temperature grade | H-grade (–40°C to 125°C) qualification ensures reliability in automotive under-hood, industrial motor drives, and outdoor equipment. |
| High-accuracy threshold matching | ±2mV ADJ/IN+ threshold matching enables precise differential monitoring (e.g., detecting cell imbalance in battery packs). |
Applications
| Automotive Battery Supervision | Industrial Power Sequencing |
|---|---|
|
Use Scenario: Monitoring 12V/24V vehicle battery during cold cranking and stop-start cycles where voltage dips below 6V. IC Role / Device Role / Timing Role: LTC2960HDC-3#TRPBF asserts RST to hold ECUs in reset until stable bus voltage is restored; OUT signals low-battery condition to dashboard controller. Use Value: Prevents ECU corruption during brownout and enables early warning of failing batteries before no-start events occur. |
Use Scenario: Controlling startup sequence of multi-rail FPGA power supplies (12V, 5V, 3.3V, 1.2V) in programmable logic systems. IC Role / Device Role / Timing Role: LTC2960HDC-3#TRPBF monitors intermediate rail (e.g., 5V) with ADJ and main rail (e.g., 12V) with IN+, generating coordinated reset and enable signals. Use Value: Ensures strict power-up order compliance without requiring complex CPLD-based sequencing logic. |
| Portable Medical Device Safety | Energy Meter Backup Power Management |
|
Use Scenario: Supervising dual Li-ion cells in portable ultrasound or infusion pumps where undervoltage must trigger immediate safe shutdown. IC Role / Device Role / Timing Role: LTC2960HDC-3#TRPBF uses ADJ for critical reset (e.g., <6.0V) and IN+ for pre-warning (e.g., <6.8V), feeding both signals to safety MCU. Use Value: Enables deterministic fail-safe behavior meeting IEC 62304 Class C software requirements with hardware-enforced timing. |
Use Scenario: Managing supercapacitor backup in smart electricity meters during mains failure to preserve metering data and RTC. IC Role / Device Role / Timing Role: LTC2960HDC-3#TRPBF monitors supercap voltage on ADJ and main rail on IN+, asserting RST to halt non-critical functions and OUT to trigger EEPROM save. Use Value: Guarantees >100k write cycles to FRAM/EEPROM by initiating save only when backup energy is sufficient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6375HESA+ | Fixed 2.93V reset threshold; 1.6µA quiescent current; SOT23-6 package; no auxiliary comparator. | Single-threshold only; unsuitable for dual-event detection (e.g., warning + reset); higher ICC limits battery life. | Select only when fixed threshold suffices and ultra-low ICC is not required. |
| TLV809E33DBZR | Fixed 3.3V reset; 0.5µA ICC; SOT23-3; no manual reset or auxiliary output. | No MR input or secondary comparator; limited to basic reset-only use cases; no high-voltage tolerance. | Use only for low-cost, single-rail 3.3V systems where extended VCC range and configurability are unnecessary. |
Compared with MAX6375HESA+ and TLV809E33DBZR, the LTC2960HDC-3#TRPBF delivers adjustable thresholds, dual-comparator supervision, 850nA ICC, and 36V operation - making it uniquely suited for high-reliability, multi-event battery and regulator monitoring where flexibility and ultra-low power are mandatory.
Availability
LTC2960HDC-3#TRPBF is available at Aetrix Electronics and suitable for automotive battery management, industrial power sequencing, portable medical device safety, and energy meter backup power management requiring stable component supply across extended temperature and high-voltage operating conditions.
Supply support for LTC2960HDC-3#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, acquired Linear Technology in 2017 to strengthen its precision power and interface portfolio.
The LTC2960 family was designed by Linear Technology specifically for ultra-low-power, high-voltage system supervision in battery-powered and automotive applications where nanoscale quiescent current and extended temperature resilience are critical.
FAQ
What is the maximum input voltage rating for the ADJ and IN+ pins on the LTC2960HDC-3#TRPBF?
The ADJ and IN+ pins on the LTC2960HDC-3#TRPBF have an absolute maximum rating of –0.3V to 3.5V. This means the voltage applied to these inputs must never exceed 3.5V, regardless of the VCC level. External resistive dividers must therefore scale monitored voltages (e.g., up to 36V) to stay within this range - for example, a 10:1 divider ensures a 36V input yields 3.6V, so a slightly steeper ratio (e.g., 10.5:1) is required to guarantee ≤3.5V at full scale. The LTC2960HDC-3#TRPBF datasheet specifies this limit explicitly in the Absolute Maximum Ratings table.
How does the DVCC pin affect the output behavior of the LTC2960HDC-3#TRPBF?
The DVCC pin on the LTC2960HDC-3#TRPBF defines the logic-high voltage level for both RST and OUT outputs. When DVCC is connected to a 1.6V–5.5V supply, RST and OUT actively drive to that voltage when high - eliminating external pull-up resistors and reducing static power. If DVCC is grounded, both outputs revert to open-drain operation and require external pull-ups to a voltage up to 36V. This dual-mode capability allows the same LTC2960HDC-3#TRPBF to interface with either low-voltage logic (e.g., 1.8V/3.3V MCUs) or high-side 24V control circuits without board redesign.
Can the LTC2960HDC-3#TRPBF be used to monitor both overvoltage and undervoltage conditions simultaneously?
Yes - the LTC2960HDC-3#TRPBF can monitor both conditions using its two comparators: ADJ for undervoltage reset (falling threshold) and IN+ for overvoltage detection (rising threshold). By configuring the IN+ divider to trigger above nominal supply (e.g., 13.5V on a 12V rail), the OUT pin asserts when overvoltage occurs. Since the IN+ comparator has 5% hysteresis referred to its threshold, it avoids chatter during transient excursions. Note that the LTC2960HDC-3#TRPBF variant uses IN+, not IN–, so overvoltage detection requires rising-edge configuration - confirmed in the Option Table and Pin Functions section of the LTC2960HDC-3#TRPBF datasheet.
What is the guaranteed minimum reset timeout period for the LTC2960HDC-3#TRPBF across temperature?
The LTC2960HDC-3#TRPBF has a fixed 200ms reset timeout period specified over its full operating temperature range of –40°C to 125°C. The Electrical Characteristics table lists tRST (Reset Timeout Period) with min/typ/max values of 140ms/200ms/280ms, all annotated with the "l" symbol indicating full-temperature-range specification. This guarantees that after the ADJ input rises above threshold, RST remains low for at least 140ms - sufficient for microcontroller power stabilization and clock lock - even at temperature extremes. No external components are required to set this timing.
Does the LTC2960HDC-3#TRPBF support manual reset functionality, and how is it implemented?
Yes, the LTC2960HDC-3#TRPBF includes a dedicated MR (Manual Reset) input pin. Pulling MR low forces RST to assert immediately, independent of ADJ voltage. After MR returns high, RST remains low for the full 200ms timeout period before releasing - ensuring consistent timing whether triggered by voltage drop or user action. The MR pin has a 0.4V logic threshold and is internally pulled up with a 1µA current source, allowing direct connection to pushbuttons (to GND) or open-drain MCU GPIOs. This feature is documented in the Pin Functions and Electrical Characteristics sections of the LTC2960HDC-3#TRPBF datasheet.
LTC2960HDC-3#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-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:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (2x2)
LTC2960HDC-3#TRPBF FAQ
1.How can I place an order for LTC2960HDC-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960HDC-3#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 LTC2960HDC-3#TRPBF reliable?
The price and inventory of LTC2960HDC-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960HDC-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2960HDC-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960HDC-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960HDC-3#TRPBF?
LTC2960HDC-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960HDC-3#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 LTC2960HDC-3#TRPBF?
For technical support, including LTC2960HDC-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960HDC-3#TRPBF requirements.
6.How does Aetrix verify that LTC2960HDC-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2960HDC-3#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 LTC2960HDC-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2960HDC-3#TRPBF?
All LTC2960HDC-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960HDC-3#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 LTC2960HDC-3#TRPBF part is unused and in its original packaging.
Return procedure for LTC2960HDC-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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