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Analog Devices Inc. LTC2960HDC-2#TRPBF
- Part No.:
- LTC2960HDC-2#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Supervisors
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC2960HDC-2#TRPBF.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,974
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Product details
Overview
LTC2960HDC-2#TRPBF from Analog Devices (formerly Linear Technology) is a nano-current, 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, and 36V open-drain RST/OUT outputs. It is used in automotive battery disconnect circuits where precise low-power undervoltage/overvoltage detection triggers controlled shutdown.
For engineers reviewing the LTC2960HDC-2#TRPBF datasheet, LTC2960HDC-2#TRPBF pinout, LTC2960HDC-2#TRPBF application, or LTC2960HDC-2#TRPBF equivalent, key selection criteria include its –40°C to 125°C operating range, IN– input configuration enabling overvoltage detection, 15ms/200ms selectable reset timeout, 36V open-drain output capability, and compatibility with high-voltage battery stacks up to 8.4V.
Technical Context
The LTC2960HDC-2#TRPBF implements dual-comparator supervision: one dedicated ADJ input for reset threshold monitoring with 2.5% hysteresis and a second IN– input configured for overvoltage detection with 5% hysteresis. Its RT pin selects between 15ms and 200ms reset timeout periods after threshold recovery.
It operates from 2.5V to 36V VCC, draws only 850nA typical supply current at 36V, and supports manual reset (MR) with <20µs pulse detection. The 36V open-drain RST and OUT outputs tolerate voltages up to 40V and drive loads up to ±5mA, enabling direct interface with high-side FET gates or logic-level translators without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2.5V to 36V - powers directly from multicell Li-ion or 24V automotive rails without regulation. |
| Quiescent Current | 850nA max at 36V - enables >10-year battery life in always-on monitoring applications. |
| Reset Threshold Accuracy | ±1.5% over –40°C to 125°C - ensures reliable brown-out detection across automotive temperature extremes. |
| IN– Input Function | Overvoltage comparator with 5% hysteresis - detects rising supply faults (e.g., alternator surge) and triggers controlled disconnect. |
| Reset Timeout Options | 15ms or 200ms via RT pin - balances fast recovery against noise immunity in noisy electrical systems. |
| Output Type | 36V open-drain RST/OUT - interfaces directly with 5V/12V/24V logic or gate drivers; no pull-up voltage limit. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood automotive and industrial embedded use. |
Pinout & Package
Package: 8-lead (2mm × 2mm) plastic DFN with exposed pad (pin 9), RoHS-compliant, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | Accepts 2.5V–36V; internal UVLO disables outputs below 1.85V; bypass with 0.1µF capacitor. |
| RT | Reset timeout select input | Tie to GND for 15ms timeout, to VCC for 200ms timeout; determines system initialization delay. |
| RST | Primary reset output | 36V open-drain; pulled low when ADJ falls below threshold; released after timeout + hysteresis recovery. |
| OUT | Spare comparator output | 36V open-drain; pulled low when IN– rises above threshold - used for overvoltage alarm or FET gate control. |
| IN– | Inverting threshold input | Configured via resistor divider to detect overvoltage events; 5% hysteresis prevents chatter during transients. |
| ADJ | Reset threshold adjustment input | Monitors main supply; falling threshold triggers RST; 2.5% hysteresis ensures stable release. |
| MR | Manual reset input | Active-low; <20µs pulse detection; forces RST low regardless of ADJ state for system-initiated reset. |
| GND | Device ground reference | Common return for all signals; exposed pad may be connected to PCB ground for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Nano-power operation | 850nA max ICC enables decade-long battery life in remote sensors and backup systems. |
| Dual-threshold supervision | Independent ADJ (undervoltage) and IN– (overvoltage) inputs allow full supply envelope monitoring with one IC. |
| High-voltage open-drain outputs | RST/OUT rated to 40V absolute max and ±5mA drive - eliminates need for external level shifters or MOSFET drivers. |
| Automotive-grade temperature range | –40°C to 125°C operation meets AEC-Q100 Class 0 requirements for under-hood deployment. |
| Configurable reset timing | RT-selectable 15ms/200ms timeout allows optimization for fast-recovery systems or noise-prone environments. |
| Robust manual reset | MR input tolerates 0–36V and detects sub-20µs pulses - supports push-button, microcontroller, or watchdog-triggered resets. |
Applications
| Automotive Battery Supervisor | Industrial Regulator UVLO |
|---|---|
|
Use Scenario: Monitoring 12V/24V vehicle battery voltage during cold cranking and alternator load dump. IC Role / Device Role / Timing Role: LTC2960HDC-2#TRPBF acts as primary supervisor: ADJ monitors undervoltage (e.g., <9.5V), IN– detects overvoltage (e.g., >16V), and RST/OUT trigger relay disconnect or MCU alert. Use Value: Prevents ECU damage from sustained overvoltage and avoids false resets during cranking dips - enabled by 125°C rating and 36V outputs. |
Use Scenario: Enabling/disabling a DC/DC converter based on input rail stability in programmable logic controllers. IC Role / Device Role / Timing Role: LTC2960HDC-2#TRPBF provides UVLO signal to converter EN pin via OUT; ADJ sets falling threshold (e.g., 20V), RT configures 200ms delay to avoid dropout chatter. Use Value: Eliminates need for discrete resistor-divider + comparator + timer; reduces BOM count and improves long-term threshold stability vs. discrete solutions. |
| Portable Equipment Low-Battery Cutoff | Multicell Li-ion Protection Circuit |
|
Use Scenario: Detecting end-of-discharge in 3S Li-ion packs (9–12.6V) to initiate graceful shutdown before cell damage. IC Role / Device Role / Timing Role: LTC2960HDC-2#TRPBF uses IN– input to monitor pack voltage rising above safe upper limit (e.g., 12.8V); OUT drives cutoff FET gate directly. Use Value: 850nA quiescent current extends shelf life; 36V outputs drive Si4435 gate without level shifter; 125°C rating supports compact enclosures. |
Use Scenario: Adding secondary overvoltage protection to existing battery management ICs in e-bike or power tool packs. IC Role / Device Role / Timing Role: LTC2960HDC-2#TRPBF serves as hardware-fail-safe: IN– monitors cell stack voltage; if >4.3V/cell, OUT pulls low to disable charging FETs within microseconds. Use Value: Provides independent, analog-level protection immune to BMS firmware faults; 5% hysteresis prevents oscillation during transient surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809E33DBZR | Single-input, fixed 3.3V reset; 1.6µA ICC; SOT-23-3; –40°C to 125°C | Only monitors one threshold; no IN– overvoltage capability; no RT timeout selection | Choose only for simple single-rail reset where dual-threshold and high-voltage outputs are unnecessary. |
| MAX6375XR29+T | Single-input, adjustable threshold; 1.2µA ICC; SOT-23-6; –40°C to 125°C; 6V max VCC | Max VCC = 6V - cannot monitor 12V/24V rails directly; no IN– function; no open-drain 36V outputs | Select only for low-voltage systems (<6V) requiring minimal footprint; requires external level shifting for higher rails. |
Compared with TLV809E33DBZR and MAX6375XR29+T, the LTC2960HDC-2#TRPBF uniquely delivers dual-threshold supervision, 36V open-drain outputs, and nano-power operation in a single 2mm×2mm DFN - eliminating external components required by alternatives to achieve equivalent functionality in automotive or industrial high-voltage monitoring.
Availability
LTC2960HDC-2#TRPBF is available at Aetrix Electronics and suitable for automotive battery management, industrial power sequencing, and portable equipment safety-critical monitoring requiring stable component supply across extended temperature ranges.
Supply support for LTC2960HDC-2#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 precision analog and power management portfolio with rigorous automotive and industrial qualification standards.
The LTC2960 family was designed specifically for ultra-low-power, high-voltage system supervision in battery-powered and automotive applications where reliability across extreme temperatures and voltage transients is non-negotiable.
FAQ
What is the maximum input voltage the LTC2960HDC-2#TRPBF can monitor on its ADJ and IN– pins?
The ADJ and IN– pins of the LTC2960HDC-2#TRPBF have an absolute maximum rating of –0.3V to 3.5V. To monitor higher voltages (e.g., 12V or 24V rails), external resistive dividers must scale the input down to ≤3.5V while maintaining sufficient divider current (>200nA) to minimize leakage-induced error. The LTC2960HDC-2#TRPBF itself does not internally attenuate these inputs.
How does the IN– input of the LTC2960HDC-2#TRPBF differ from the IN+ input found in other variants?
The LTC2960HDC-2#TRPBF uses the IN– input for overvoltage detection: OUT goes low when the IN– voltage rises above its threshold and remains low until the voltage falls below threshold minus 5% hysteresis. This contrasts with IN+ variants (e.g., LTC2960-1), where OUT goes low on falling voltage. The IN– configuration makes LTC2960HDC-2#TRPBF ideal for detecting alternator surges or charger overvoltage events.
Can the LTC2960HDC-2#TRPBF operate with VCC below 2.5V?
No - the LTC2960HDC-2#TRPBF has a specified minimum VCC of 2.5V per its Electrical Characteristics table. Below this, functionality is not guaranteed. Its VCC undervoltage lockout activates at ~1.85V (rising), pulling RST/OUT low. Operation below 2.5V risks undefined behavior, especially for accurate threshold comparison and MR input detection.
What is the purpose of the RT pin on the LTC2960HDC-2#TRPBF, and how should it be configured?
The RT pin on the LTC2960HDC-2#TRPBF selects the reset timeout period: tie RT to GND for 15ms, or to VCC for 200ms. This timeout delays RST's return to high after ADJ recovers above threshold, preventing chatter during supply settling. The RT pin is exclusive to -1/-2 variants; -3/-4 variants replace RT with DVCC and fix timeout at 200ms.
Does the LTC2960HDC-2#TRPBF require external capacitors, and if so, where?
Yes - a 0.1µF ceramic capacitor is required between VCC and GND, placed as close as possible to the pins, to ensure stable operation and suppress supply noise. No capacitor is required on MR or RT. If using the optional exposed pad (DFN package), it may be left floating or connected to GND for improved thermal performance - no capacitor needed there.
LTC2960HDC-2#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:
- 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-2#TRPBF FAQ
1.How can I place an order for LTC2960HDC-2#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2960HDC-2#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-2#TRPBF reliable?
The price and inventory of LTC2960HDC-2#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-2#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2960HDC-2#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2960HDC-2#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2960HDC-2#TRPBF?
LTC2960HDC-2#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2960HDC-2#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-2#TRPBF?
For technical support, including LTC2960HDC-2#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2960HDC-2#TRPBF requirements.
6.How does Aetrix verify that LTC2960HDC-2#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2960HDC-2#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-2#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2960HDC-2#TRPBF?
All LTC2960HDC-2#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2960HDC-2#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-2#TRPBF part is unused and in its original packaging.
Return procedure for LTC2960HDC-2#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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