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Analog Devices Inc. LT6703HVCS5-3#TRMPBF
- Part No.:
- LT6703HVCS5-3#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT6703HVCS5-3#TRMPBF.pdf
- Description:
- IC COMPARATOR 1 GEN PUR TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,790
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Product details
Overview
LT6703HVCS5-3#TRMPBF from Analog Devices (formerly Linear Technology) is a micropower, noninverting supply voltage monitor IC with integrated 400mV reference, 6.5μA typical quiescent current, ±1.25% threshold accuracy at 25°C, and open-collector output rated to 36V. It operates from 1.4V to 18V supply and supports automotive-grade temperature range (0°C to 70°C), used for battery-powered system monitoring and relay driving.
For engineers reviewing the LT6703HVCS5-3#TRMPBF datasheet, LT6703HVCS5-3#TRMPBF pinout, LT6703HVCS5-3#TRMPBF application, or LT6703HVCS5-3#TRMPBF equivalent, key selection criteria include input polarity (noninverting), HV-rated 36V output tolerance, TSOT-23-5 package compatibility, and built-in 6.5mV hysteresis for noise-immune threshold detection in low-power industrial and automotive systems.
Technical Context
The LT6703HVCS5-3#TRMPBF integrates a precision 400mV bandgap reference with a single noninverting comparator stage. Its Over-The-Top® input architecture allows the +IN terminal to operate from –0.3V to 36V relative to GND, independent of VS (1.4V–18V). The internal hysteresis (6.5mV typ) ensures stable switching under noisy conditions without external components.
Output stage is open-collector with guaranteed 5mA sink capability and <200mV VOL at 5mA load. Input bias current remains ≤±15nA across –40°C to 85°C, and total rising threshold error is limited to ±1.25% at 25°C, enabling accurate low-voltage supervision in space-constrained applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - enables direct operation from single-cell Li-ion (2.7V–4.2V), 3.3V/5V rails, or 12V automotive systems without regulation. |
| Rising Threshold Voltage | 400mV ±1.25% at 25°C - fixed internal reference eliminates external resistor divider, reducing BOM count and layout sensitivity. |
| Quiescent Current | 6.5μA typical at 5V - supports >10-year battery life in always-on monitoring circuits (e.g., smart sensors, backup power supervisors). |
| Output Voltage Rating | Up to 36V - allows level translation to higher-voltage logic or relay coils without external transistor or level shifter. |
| Hysteresis | 6.5mV typical - suppresses chatter on slow-rising inputs (e.g., battery discharge curves) without requiring external feedback resistors. |
| Input Bias Current | ±15nA max over –40°C to 85°C - minimizes voltage drop across high-impedance sense dividers (e.g., 1MΩ networks). |
| Propagation Delay | 29μs (LH), 18μs (HL) at 10mV overdrive - sufficient for supervisory timing in microcontroller reset circuits and power-good signaling. |
Pinout & Package
LT6703HVCS5-3#TRMPBF uses a 5-lead Plastic TSOT-23 (S5) package, 2.9mm × 1.6mm × 0.9mm, with exposed pad not connected internally. Pin 1 is marked by notch; exposed pad must be soldered to PCB for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Open-collector comparator output | Sinks up to 5mA; off-state voltage floats to ≤36V - enables direct interface with 3.3V/5V/12V/24V logic or relay drivers. |
| GND (Pin 2) | Ground reference and reference low-side | Reference return path; must be low-impedance connection to minimize threshold shift due to ground bounce. |
| +IN (Pin 3) | Noninverting input | Voltage applied here triggers output LOW when ≥400mV - used for high-side sensing (e.g., VBUS OK) or battery voltage monitoring. |
| NC (Pin 5) | No connect | Not bonded; no electrical function - leave unconnected or tie to GND per layout best practice. |
| VS (Pin 4) | Positive supply input | Power source for internal circuitry; requires 0.1μF ceramic bypass capacitor placed within 2mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 400mV reference | Eliminates need for external voltage divider or precision reference IC, reducing component count and board area in compact designs. |
| Over-The-Top® input | Allows +IN to operate down to –0.3V or up to 36V regardless of VS - supports high-side sensing and level-shifting without external op-amps. |
| Guaranteed 5mA sink capability | Drives LEDs, small relays, or microcontroller GPIO directly - avoids external NPN/MOSFET buffer stages in simple alarm circuits. |
| Internal hysteresis (6.5mV typ) | Prevents oscillation on noisy or slowly varying inputs (e.g., thermistor-based thresholds), removing need for external positive feedback network. |
| Low input bias current (±15nA max) | Enables use with ultra-high-impedance sensing networks (e.g., 10MΩ dividers), preserving accuracy in battery voltage monitoring over wide temperature ranges. |
Applications
| Battery-Powered System Monitoring | Automotive Monitor and Controls |
|---|---|
Use Scenario: Supervising lithium-ion battery pack voltage during discharge to prevent deep depletion. IC Role / Device Role / Timing Role: Noninverting comparator monitors divided battery voltage; asserts open-drain signal when cell voltage drops below 3.0V (via 7.5:1 divider). Use Value: 6.5μA quiescent current extends shelf life; 400mV reference accuracy ensures consistent 3.0V trip point across temperature and unit-to-unit variation. |
Use Scenario: Detecting loss of 12V rail integrity in engine control units during cold cranking. IC Role / Device Role / Timing Role: Monitors switched 12V supply after ignition; triggers fault flag if voltage falls below 9.5V (23.75:1 divider). Use Value: 36V output rating allows direct pull-up to 12V rail; Over-The-Top® input tolerates negative transients common in automotive environments. |
| Industrial Control Systems | Handheld Instruments |
Use Scenario: Enabling safety interlock in programmable logic controller I/O modules when auxiliary 24V supply is valid. IC Role / Device Role / Timing Role: Acts as power-good detector; output pulls low only when 24V rail exceeds 22.5V (56.25:1 divider). Use Value: Built-in hysteresis prevents nuisance tripping during line ripple; TSOT-23-5 footprint saves space on dense industrial PCBs. |
Use Scenario: Low-battery warning in portable multimeters powered by two AA cells (1.8V–3.2V). IC Role / Device Role / Timing Role: Compares battery voltage against 400mV reference via 4.5:1 resistor divider to detect <1.8V condition. Use Value: Micropower operation preserves battery life; ±1.25% threshold accuracy ensures reliable low-battery alert across operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7033DBVR | 36V open-drain output, but 1.6V min supply; 1.2% reference accuracy; no internal hysteresis. | Requires external hysteresis resistor network; unsuitable for sub-1.6V battery monitoring. | Choose for cost-sensitive designs where external hysteresis is acceptable and supply >1.6V. |
| MAX9063ASA+ | 400mV reference, 1.8V–5.5V supply only; 2.5μA IQ; no HV output rating (max 5.5V). | Limited to low-voltage systems; cannot drive 12V/24V loads directly. | Choose for ultra-low-power wearable devices with 3.3V-only rails and minimal board space. |
Compared with TLV7033DBVR and MAX9063ASA+, the LT6703HVCS5-3#TRMPBF uniquely combines 1.4V minimum supply, 36V output tolerance, and built-in hysteresis - making it the only option capable of direct high-voltage level translation and sub-2V battery supervision in a single TSOT-23-5 device.
Availability
LT6703HVCS5-3#TRMPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, automotive monitor and controls, and industrial control systems requiring stable component supply, long-term lifecycle support, and guaranteed automotive-grade temperature compliance (0°C to 70°C).
Supply support for LT6703HVCS5-3#TRMPBF 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 product lines. Linear pioneered high-performance comparators and references for demanding industrial and automotive applications.
The LT6703HV series was designed specifically for robust, low-power voltage supervision in harsh environments - emphasizing wide supply range, HV output tolerance, and integrated reference stability for automotive and industrial power monitoring.
FAQ
What is the exact input polarity configuration of the LT6703HVCS5-3#TRMPBF?
The LT6703HVCS5-3#TRMPBF features a noninverting input configuration: the +IN pin (Pin 3) is externally accessible, while the internal 400mV reference connects to the inverting input. Output goes low when +IN voltage rises above the rising threshold (~400mV). This differs from the LT6703HVCS5-2#TRMPBF, which uses an inverting input.
Can the LT6703HVCS5-3#TRMPBF monitor voltages below ground?
Yes - the LT6703HVCS5-3#TRMPBF's Over-The-Top® input allows the +IN pin to operate from –0.3V to 36V relative to GND, regardless of VS. Inputs down to –0.3V are safe; below that, current must be limited to <10mA via series resistance to avoid exceeding ESD diode ratings.
What is the maximum sink current capability of the LT6703HVCS5-3#TRMPBF output?
The LT6703HVCS5-3#TRMPBF output guarantees >5mA sink current at VO ≤ 200mV (with 10mV overdrive, VS = 5V). Typical sink capability reaches 40mA, but design margin should rely on the 5mA specification across temperature and process variation for robust reliability.
Does the LT6703HVCS5-3#TRMPBF require an external bypass capacitor?
Yes - a minimum 0.1μF ceramic capacitor must be placed between VS (Pin 4) and GND (Pin 2), located within 2mm of the pins. For loads >5mA or "soft" supplies (e.g., coin cells), a 1μF capacitor and optional 47Ω series decoupling resistor are recommended to suppress supply transients.
How does the built-in hysteresis affect threshold accuracy in the LT6703HVCS5-3#TRMPBF?
The LT6703HVCS5-3#TRMPBF provides 6.5mV typical hysteresis, resulting in a falling threshold of ~393.5mV (400mV – 6.5mV). Total rising threshold error remains ±1.25% at 25°C; hysteresis is fixed and does not degrade reference accuracy - it only defines the gap between turn-on and turn-off points for noise immunity.
LT6703HVCS5-3#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- Over-The-Top®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 1.4V ~ 18V
- :
- -
- Voltage - Input Offset (Max):
- 0.01µA @ 18V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 14µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 11mV
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-5
LT6703HVCS5-3#TRMPBF FAQ
1.How can I place an order for LT6703HVCS5-3#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6703HVCS5-3#TRMPBF 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 LT6703HVCS5-3#TRMPBF reliable?
The price and inventory of LT6703HVCS5-3#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6703HVCS5-3#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6703HVCS5-3#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6703HVCS5-3#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6703HVCS5-3#TRMPBF?
LT6703HVCS5-3#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6703HVCS5-3#TRMPBF 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 LT6703HVCS5-3#TRMPBF?
For technical support, including LT6703HVCS5-3#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6703HVCS5-3#TRMPBF requirements.
6.How does Aetrix verify that LT6703HVCS5-3#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6703HVCS5-3#TRMPBF 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 LT6703HVCS5-3#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6703HVCS5-3#TRMPBF?
All LT6703HVCS5-3#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6703HVCS5-3#TRMPBF, 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 LT6703HVCS5-3#TRMPBF part is unused and in its original packaging.
Return procedure for LT6703HVCS5-3#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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