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Analog Devices Inc. LTC2960HDC-1
- Part No.:
- LTC2960HDC-1
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2960HDC-1.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,582
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Product details
Overview
LTC2960HDC-1 from Analog Devices (formerly Linear Technology) is a nano-power, high-voltage two-input voltage supervisor IC designed for multicell battery monitoring and regulator UVLO in harsh environments. It features 850nA quiescent current, ±1.5% threshold accuracy over –40°C to 125°C, adjustable ADJ/IN+ reset thresholds via external resistive dividers, 15ms/200ms selectable reset timeout, and 36V open-drain RST/OUT outputs. It is used in automotive battery disconnect circuits and portable Li-ion power management.
For engineers reviewing the LTC2960HDC-1 datasheet, LTC2960HDC-1 pinout, LTC2960HDC-1 application, or LTC2960HDC-1 equivalent, this page delivers verified specifications, thermal-grade package details, functional pin definitions, real-world timing behavior, and validated alternative options - all specific to the –40°C to 125°C industrial/harsh-environment variant in 2mm × 2mm DFN.
Technical Context
The LTC2960HDC-1 implements dual-comparator supervision: one precision 400mV reference-based comparator on ADJ input for reset generation with 2.5% hysteresis and configurable timeout, and a second on IN+ input for auxiliary voltage detection with 5% hysteresis. Its RT pin selects between 15ms and 200ms reset timeout periods after threshold recovery or manual reset release.
It operates from 2.5V to 36V VCC, draws only 850nA typical supply current at 36V, and supports 36V-tolerant open-drain RST/OUT outputs - enabling direct interface with higher-voltage rails without level-shifting. The device guarantees output low state down to VCC = 1.2V and includes internal 1µA MR pull-up for push-button compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2.5V to 36V - supports direct connection to 12V/24V/36V battery stacks and industrial supplies without regulation. |
| Quiescent Current (ICC) | 850nA max at 36V and –40°C to 125°C - enables multi-year operation on coin cells or energy-harvested sources. |
| Reset Threshold Accuracy | ±1.5% over full temperature range - ensures reliable brown-out detection across automotive under-hood conditions. |
| Reset Timeout Options | 15ms or 200ms via RT pin - provides flexibility for fast microcontroller initialization or extended power-rail settling time. |
| Output Type | 36V open-drain RST and OUT - allows pull-up to any voltage ≤40V, supporting mixed-voltage system interfacing. |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive, industrial control, and high-reliability embedded applications. |
| Input Leakage (ADJ/IN+) | ±1nA max below 85°C - permits use of >10MΩ resistor dividers with <1% error, minimizing power loss in battery systems. |
Pinout & Package
Package: 8-lead (2mm × 2mm) plastic DFN (DC8), exposed pad (Pin 9) optional GND connection. Thermal resistance θJA = 80.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; undervoltage lockout activates below 1.85V; bypass with 0.1µF capacitor required. |
| RT/DVCC | Reset timeout select input | Tie to GND for 15ms timeout, to VCC for 200ms timeout; not DVCC - LTC2960HDC-1 uses open-drain output architecture. |
| RST | Primary reset output | 36V open-drain; pulls low when ADJ falls below threshold; released after timeout + hysteresis recovery. |
| OUT | Auxiliary status output | 36V open-drain; tied to IN+ input - asserts low when monitored voltage falls below IN+ threshold. |
| IN+ | Non-inverting auxiliary threshold input | Configures second comparator threshold (e.g., low-battery warning); referenced to 400mV internal bandgap. |
| ADJ | Adjustable reset threshold input | Main supervision point; threshold set by resistive divider to 400mV reference; 2.5% hysteresis ensures noise immunity. |
| MR | Manual reset input | Active-low; internally pulled up with 1µA source; accepts logic or push-button; triggers RST low for timeout period. |
| GND | Ground reference | System ground return; exposed pad may be connected to GND for improved thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-power operation | 850nA max ICC enables >10-year battery life in always-on monitoring applications such as telematics or remote sensors. |
| High-voltage tolerance | 36V-rated open-drain outputs allow direct interface with 24V truck batteries or 36V e-bike packs without external FETs or level shifters. |
| Adjustable dual thresholds | Independent ADJ (reset) and IN+ (warning) thresholds set via external resistors - supports cascaded shutdown sequences. |
| Configurable reset timing | RT pin enables field-selectable 15ms or 200ms timeout - avoids unnecessary BOM variants for different MCU startup requirements. |
| Automotive-grade reliability | –40°C to +125°C operation, AEC-Q200 alignment, and 150°C junction rating support under-hood deployment without derating. |
Applications
| Battery Disconnect Control | Regulator UVLO Supervision |
|---|---|
|
Use Scenario: Preventing deep discharge of multicell Li-ion packs in portable medical devices or power tools. IC Role / Device Role / Timing Role: LTC2960HDC-1 monitors pack voltage via ADJ input and asserts open-drain OUT to gate driver controlling series MOSFET disconnect switch. Use Value: 850nA quiescent current avoids parasitic drain during storage; 125°C rating ensures reliability near battery cells. |
Use Scenario: Enabling/disabling DC/DC converters based on input rail health in automotive infotainment systems. IC Role / Device Role / Timing Role: LTC2960HDC-1 RST output drives EN pin of buck converter; ADJ threshold set to 6.41V to prevent operation below safe battery voltage. Use Value: 36V open-drain output interfaces directly with 12V input rail; 200ms timeout prevents false disable during load transients. |
| Low-Battery Warning System | Harsh-Environment Microcontroller Reset |
|
Use Scenario: Providing early low-battery alert before critical shutdown in handheld test equipment. IC Role / Device Role / Timing Role: LTC2960HDC-1 uses IN+ input to trigger OUT at 5.537V while ADJ resets system at 6.33V - staged response. Use Value: Dual independent comparators eliminate need for second supervisor IC; ±1.5% accuracy ensures consistent warning across temperature. |
Use Scenario: Ensuring robust reset assertion during cold cranking or load dump events in engine control units. IC Role / Device Role / Timing Role: LTC2960HDC-1 RST output connects to µC reset pin; ADJ threshold set to 4.75V with 2.5% hysteresis to reject noise. Use Value: Guaranteed RST low state down to VCC = 1.2V maintains reset integrity during severe brown-out; 125°C rating matches ECU under-hood environment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326US29D3+ | Fixed 2.93V reset threshold; no adjustable IN+ input; 3.6V max VCC; SOT23-5 package | Limited to low-voltage single-rail systems; cannot monitor >3.6V supplies or provide dual thresholds | Select only for cost-sensitive, fixed-threshold 3.3V systems where dual inputs and high-voltage operation are unnecessary. |
| TPS3808G12DBVR | Fixed 1.2V threshold; 2.5V–6.0V VCC range; push-pull RST; no auxiliary comparator or IN+ input | Designed for core logic rail supervision only; lacks battery-monitoring capability and high-voltage tolerance | Choose for FPGA/CPU core voltage monitoring where ultra-low-cost and small footprint outweigh flexibility needs. |
Compared with MAX6326US29D3+ and TPS3808G12DBVR, the LTC2960HDC-1 uniquely supports 36V operation, dual adjustable thresholds, and nano-power consumption - making it the only option suitable for high-voltage battery supervision in extended-temperature industrial and automotive applications.
Availability
LTC2960HDC-1 is available at Aetrix Electronics and suitable for automotive battery management, industrial sensor nodes, and portable medical equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LTC2960HDC-1 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 portfolio, including precision supervisors, references, and signal conditioning ICs for demanding industrial and automotive markets.
The LTC2960HDC-1 belongs to Linear's nano-power voltage supervisor family, engineered specifically for battery-backed and high-reliability systems where ultra-low quiescent current, wide input voltage range, and extended temperature operation are mandatory.
FAQ
What is the maximum input voltage the LTC2960HDC-1 can tolerate on its VCC pin?
The LTC2960HDC-1 has an absolute maximum VCC rating of 40V. Operation is specified from 2.5V to 36V. Transient overvoltage protection beyond 40V requires external circuitry such as a Zener clamp and current-limiting resistor, as documented in Linear Application Note 2960, Figure 7(a). The LTC2960HDC-1 itself must never be exposed to sustained voltages above 40V on VCC.
Does the LTC2960HDC-1 support both rising-edge and falling-edge detection on its IN+ input?
No. The LTC2960HDC-1 IN+ input is configured for falling-edge detection only: OUT pulls low when the voltage at IN+ falls below its threshold and remains low until the voltage rises above threshold + 5% hysteresis. This behavior is fixed per the LTC2960-1 variant designation and confirmed in the Pin Functions section and Block Diagram of the official datasheet.
Can the LTC2960HDC-1 operate with VCC as low as 1.2V, and what happens to RST/OUT outputs below that?
Yes - the LTC2960HDC-1 guarantees RST and OUT remain low for VCC ≥ 1.2V regardless of input conditions. Below 1.2V, output states are not guaranteed; the device enters undefined operation. This behavior is explicitly stated in the Pin Functions description for RST and confirmed in Absolute Maximum Ratings and Electrical Characteristics tables.
Is the exposed pad (Pin 9) of the LTC2960HDC-1's DFN package required to be connected to GND?
No. The exposed pad (Pin 9) in the DC8 DFN package is optional for GND connection. It may be left floating or connected to GND to improve thermal performance (θJA = 80.6°C/W assumes optional GND connection). No electrical functionality depends on this pad; it serves only thermal and mechanical purposes per the Package Description and Pin Configuration diagrams.
How does the RT pin function on the LTC2960HDC-1, and what are the valid logic levels?
The RT pin on the LTC2960HDC-1 selects reset timeout: tie to GND for 15ms, tie to VCC for 200ms. Its threshold is 0.4V to 1.4V (per Electrical Characteristics table), so it reliably interprets standard CMOS logic levels. RT is not a high-impedance input - it sources/sinks negligible current, but must be actively driven or hard-connected; floating is not permitted per design guidelines.
LTC2960HDC-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 8-DFN (2x2)
LTC2960HDC-1 FAQ
1.How can I place an order for LTC2960HDC-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960HDC-1 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-1 reliable?
The price and inventory of LTC2960HDC-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2960HDC-1 is usually 5 days.
3.What payment methods are accepted for LTC2960HDC-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960HDC-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960HDC-1?
LTC2960HDC-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960HDC-1 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-1?
For technical support, including LTC2960HDC-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960HDC-1 requirements.
6.How does Aetrix verify that LTC2960HDC-1 is sourced from the original manufacturer or authorized distributors?
All LTC2960HDC-1 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-1 meets industry standards.
7.What is the process for return or replacement of LTC2960HDC-1?
All LTC2960HDC-1 units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960HDC-1, 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-1 part is unused and in its original packaging.
Return procedure for LTC2960HDC-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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