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Analog Devices Inc. LT6703HVHS5-3#TRPBF
- Part No.:
- LT6703HVHS5-3#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Comparators
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT6703HVHS5-3#TRPBF.pdf
- Description:
- IC COMPARATOR 1 GEN PUR TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,118
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Product details
Overview
LT6703HVHS5-3#TRPBF from Analog Devices (acquired Linear Technology) is a micropower, noninverting-input voltage monitor comparator with integrated 400mV reference, 6.5μA supply current at 5V, ±10nA max input bias current, and open-collector output rated to 36V. It operates from 1.4V to 18V supply and supports automotive-grade temperature range (–40°C to 125°C), used for battery voltage supervision in handheld instruments and relay driving.
For engineers reviewing the LT6703HVHS5-3#TRPBF datasheet, LT6703HVHS5-3#TRPBF pinout, LT6703HVHS5-3#TRPBF application, or LT6703HVHS5-3#TRPBF equivalent, key selection criteria include its 400mV internal reference accuracy (±1.25% max at 25°C), built-in 6.5mV typical hysteresis, Over-The-Top® input capability down to GND and up to 36V, and TSOT-23-5 package compatibility with level-shifting designs.
Technical Context
The LT6703HVHS5-3#TRPBF implements a single noninverting comparator with one external input (+IN) referenced internally to a precision 400mV bandgap reference. Its Over-The-Top® input architecture allows the +IN pin to operate from –0.3V to 36V independent of VS, enabling direct monitoring of high-side rails or battery voltages exceeding the supply.
It features an open-collector output capable of sinking ≥5mA while supporting off-state voltages up to 36V, allowing interface with higher-voltage logic or loads. Internal hysteresis (6.5mV typ) ensures noise immunity without external components, and propagation delays are 18μs (HL) and 29μs (LH) at 10mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4V to 18V - Enables operation from single-cell Li-ion (2.7V–4.2V) up to industrial 12V/15V rails. |
| Reference Voltage | 400mV ±1.25% max at 25°C - Provides stable, factory-trimmed threshold for accurate low-voltage detection. |
| Quiescent Current | 6.5μA typ at 5V - Supports multi-year battery life in always-on monitoring applications. |
| Input Voltage Range | –0.3V to 36V - Allows direct connection to battery terminals or high-side nodes without level-shifting. |
| Hysteresis | 6.5mV typ - Prevents chatter during slow-rising/falling inputs or noisy supply conditions. |
| Output Sink Current | ≥5mA guaranteed - Drives LEDs, MOSFET gates, or optocouplers directly without external buffers. |
| Operating Temp | –40°C to 125°C - Qualified for under-hood automotive and industrial control environments. |
Pinout & Package
LT6703HVHS5-3#TRPBF uses a 5-lead Plastic TSOT-23 (S5) package with exposed pad for thermal performance. Pin 1 = OUT, Pin 2 = GND, Pin 3 = +IN, Pin 4 = VS, Pin 5 = NC (no connect). The exposed pad must be soldered to PCB ground for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Open-collector comparator output | Sinks current to GND; can be pulled up to any voltage ≤36V, enabling level translation across domains. |
| GND (Pin 2) | Ground reference and reference return | Common return for internal 400mV reference and output sink path; must be low-impedance. |
| +IN (Pin 3) | Noninverting comparator input | Monitors rising voltage thresholds; accepts inputs from –0.3V to 36V regardless of VS. |
| VS (Pin 4) | Positive supply input | Power source for internal circuitry; requires 0.1μF bypass capacitor to GND per datasheet. |
| NC (Pin 5) | No connect | Not internally bonded; left unconnected on PCB to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 400mV reference | Eliminates external reference IC or resistor divider, reducing BOM count and layout area in space-constrained designs. |
| Over-The-Top® input | Enables direct sensing of battery voltage or high-side rail even when VS is powered from a lower auxiliary supply. |
| Internal hysteresis | 6.5mV typical hysteresis removes need for external positive feedback network, simplifying threshold design. |
| 36V output tolerance | Allows OUT to interface with 24V PLC I/O or automotive 12V/24V systems without external clamping or level shifters. |
| TSOT-23-5 package | Standard 5-lead SOT footprint enables drop-in replacement in existing layouts and supports automated assembly. |
Applications
| Battery-Powered System Monitoring | Threshold Detectors |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during discharge to trigger low-battery warning before cutoff. IC Role / Device Role / Timing Role: Noninverting comparator compares cell voltage against 400mV reference scaled via resistor divider to set 3.0V threshold. Use Value: 6.5μA quiescent current extends battery runtime; ±1.25% reference accuracy ensures consistent trip point across temperature. | Use Scenario: Detecting overvoltage on a 5V microcontroller supply rail to initiate shutdown sequence. IC Role / Device Role / Timing Role: +IN monitors rail through resistive divider; open-collector OUT drives MCU interrupt pin or latch circuit. Use Value: 36V input tolerance allows direct connection to 12V/24V system rails; hysteresis prevents false triggers near threshold. |
| Window Comparators | Automotive Monitor and Controls |
Use Scenario: Implementing dual-threshold detection for regulated DC-DC output (e.g., 12V ±5%) using two LT6703HVHS5-3 units. IC Role / Device Role / Timing Role: One unit detects upper limit (noninverting), second detects lower limit (inverting variant); outputs combined via logic. Use Value: Matched 400mV references and hysteresis ensure tight window symmetry; TSOT-23 footprint saves board space. | Use Scenario: Supervising 12V battery voltage in engine control unit to detect cranking undervoltage or alternator failure. IC Role / Device Role / Timing Role: +IN connected to battery via resistor divider; OUT drives fault indicator LED or CAN transceiver enable line. Use Value: –40°C to 125°C rating ensures reliability in under-hood environments; 36V input withstands load dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7031DRYR | Lower supply range (1.6V–6.5V), 350mV reference, no built-in hysteresis, SOT-553 package | Limited to low-voltage systems; requires external hysteresis resistor network for noise immunity | Select when cost-sensitive, low-voltage-only designs prioritize smaller footprint over wide supply/hysteresis integration |
| MAX9063ASA+ | 2.5V reference, 1.8V–5.5V supply, 1.5μA IQ, SO-8 package, no integrated reference | Requires external reference or resistor divider; better for ultra-low-power but less integrated solution | Select when ultra-low quiescent current (<2μA) is critical and external reference is acceptable |
Compared with TLV7031DRYR and MAX9063ASA+, the LT6703HVHS5-3#TRPBF delivers superior integration (400mV reference + hysteresis), wider supply (1.4V–18V) and input (–0.3V–36V) ranges, and automotive temperature support - making it optimal for robust, space-constrained battery and industrial monitoring where component count and reliability are prioritized.
Availability
LT6703HVHS5-3#TRPBF is available at Aetrix Electronics and suitable for battery-powered system monitoring, automotive voltage supervision, and industrial threshold detection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT6703HVHS5-3#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) acquired Linear Technology in 2017 and maintains its precision analog portfolio, including high-reliability comparators and references for demanding industrial and automotive applications.
The LT6703HV series belongs to ADI's micropower voltage monitor product line, designed specifically for low-power, high-accuracy supply and battery voltage supervision in harsh environments where wide input range and integrated reference stability are essential.
FAQ
What is the function of the NC pin (Pin 5) on the LT6703HVHS5-3#TRPBF?
Pin 5 is a no-connect terminal with no internal bond wire. It must remain unconnected on the PCB to prevent unintended coupling or leakage paths. The LT6703HVHS5-3#TRPBF datasheet explicitly states this pin is not functional, and soldering or routing to it may degrade ESD performance or cause measurement errors in sensitive applications.
Can the LT6703HVHS5-3#TRPBF monitor a 24V battery directly without external components?
Yes - the LT6703HVHS5-3#TRPBF supports +IN voltages from –0.3V to 36V, independent of its 1.4V–18V supply. To monitor a 24V battery, connect +IN directly to the battery via a resistor divider that scales 24V down to ~400mV (e.g., 59.5kΩ:1kΩ), while powering VS from a local 3.3V or 5V rail. The LT6703HVHS5-3#TRPBF handles the full common-mode range inherently.
What is the maximum sink current guaranteed for the LT6703HVHS5-3#TRPBF output?
The LT6703HVHS5-3#TRPBF guarantees ≥5mA sink current over temperature (–40°C to 125°C) with VOL ≤200mV at 5V supply. At room temperature and 5V VS, typical sink capability exceeds 40mA. This allows direct drive of LEDs, small relays, or MOSFET gates without external buffers - a key advantage over standard comparators requiring pull-up resistors alone.
How does the built-in hysteresis of the LT6703HVHS5-3#TRPBF affect threshold accuracy?
The LT6703HVHS5-3#TRPBF provides 6.5mV typical hysteresis (3.5–9.5mV min/max), resulting in separate rising (VTH(R)) and falling (VTH(F)) thresholds centered around 400mV. This intentional offset prevents oscillation near the trip point due to noise or slow edges. For example, with VTH(R) = 400mV and hysteresis = 6.5mV, VTH(F) ≈ 393.5mV - a fixed, predictable window that improves system robustness without external components.
Is the LT6703HVHS5-3#TRPBF pin-compatible with other members of the LT6703 family in TSOT-23-5?
Yes - all LT6703HVxS5 variants (e.g., LT6703HVHS5-2#TRPBF, LT6703HVHS5-3#TRPBF) share identical TSOT-23-5 pinout and footprint. The only functional difference is input polarity: -2 versions use inverting input (–IN), while -3 versions use noninverting input (+IN). No PCB changes are required when swapping between them, though external circuit connections must match the input polarity requirement.
LT6703HVHS5-3#TRPBF 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):
- 17µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- 13.5mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- TSOT-23-5
LT6703HVHS5-3#TRPBF FAQ
1.How can I place an order for LT6703HVHS5-3#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6703HVHS5-3#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 LT6703HVHS5-3#TRPBF reliable?
The price and inventory of LT6703HVHS5-3#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6703HVHS5-3#TRPBF is usually 5 days.
3.What payment methods are accepted for LT6703HVHS5-3#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6703HVHS5-3#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6703HVHS5-3#TRPBF?
LT6703HVHS5-3#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6703HVHS5-3#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 LT6703HVHS5-3#TRPBF?
For technical support, including LT6703HVHS5-3#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6703HVHS5-3#TRPBF requirements.
6.How does Aetrix verify that LT6703HVHS5-3#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT6703HVHS5-3#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 LT6703HVHS5-3#TRPBF meets industry standards.
7.What is the process for return or replacement of LT6703HVHS5-3#TRPBF?
All LT6703HVHS5-3#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6703HVHS5-3#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 LT6703HVHS5-3#TRPBF part is unused and in its original packaging.
Return procedure for LT6703HVHS5-3#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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