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Home > Products > Integrated Circuits (ICs) > Linear > Comparators

Renesas HA1631D04TEL-E

Name: HA1631D04TEL-E
Brand: Renesas
SKU: HA1631D04TEL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HA1631D04TEL-E

Manufacturer:: Renesas

Category:: Comparators

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: HA1631D04TEL-E.pdf

Description:: IC COMPARATOR 2 GEN PUR 8TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

HA1631D04TEL-E from Renesas is a dual CMOS comparator with open-drain output, designed for low-voltage, ultra-low-power applications. It operates from 1.8 V to 5.5 V, draws only 100 µA typical supply current per comparator, and features 5 mV max input offset voltage, 1 pA typical input bias current, and rail-to-rail input common-mode range including ground - enabling direct use in battery-powered sensor interfaces and portable analog monitoring circuits.

For engineers reviewing the HA1631D04TEL-E datasheet, HA1631D04TEL-E pinout, HA1631D04TEL-E application, or HA1631D04TEL-E equivalent, this device is selected when open-drain flexibility (e.g., wired-OR logic, level shifting via external pull-up), sub-100 µA per-channel quiescent current, and operation down to 1.8 V are required - especially in space-constrained industrial sensors, IoT node comparators, and multi-voltage system monitoring.

Technical Context

The HA1631D04TEL-E implements two independent high-impedance CMOS comparators with open-drain outputs, allowing external pull-up to any voltage ≤7 V - decoupling output logic level from supply rail. Its input stage supports common-mode voltages from –0.1 V to VDD–1.2 V, enabling ground-referenced sensing without level-shifting circuitry.

It delivers 100 µA typical supply current at 3 V (vs. 5 µA for HA1631D01/03), optimized for speed/power trade-off: propagation delay is 0.17 µs (TPHL) and 0.33 µs (TPLH) at 100 mV overdrive with 15 pF load - faster than the low-current variants while retaining ultra-low input bias current (1 pA typ) and ESD protection on all pins.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.8 V to 5.5 V - enables direct integration into 2-cell Li-ion, 3.3 V, and 5 V systems without regulators.
Supply Current (per comparator)	100 µA typical at 3 V - balances low power with improved response time vs. 5 µA variants.
Input Offset Voltage	≤5 mV max - ensures reliable detection of small differential signals (e.g., thermistor or RTD thresholds).
Input Bias Current	1 pA typical - minimizes error in high-impedance sensor interfaces (e.g., photodiode or pH electrode circuits).
Output Type	Open-drain - supports level translation, wired-OR bus configurations, and flexible pull-up to non-VDD logic rails.
Input Common-Mode Range	Includes ground (–0.1 V to 2.1 V at VDD = 3 V) - allows direct sensing of 0 V referenced signals without biasing networks.
Propagation Delay	0.17 µs (TPHL), 0.33 µs (TPLH) at 100 mV overdrive, CL = 15 pF - suitable for medium-speed threshold detection (e.g., battery charge state, fault flag generation).

Pinout & Package

HA1631D04TEL-E is packaged in TSSOP-8 (JEITA code PTSP0008JC-B, Renesas code TTP-8DAV), a 4.4 mm × 3.0 mm, 0.65 mm pitch surface-mount package with exposed pad not electrically connected.

Pin/Terminal	Circuit Role	Design Meaning
1	VSS	Ground reference for both comparators and internal circuitry; must be low-impedance connection.
2	VIN1(+)	Inverting input of Comparator 1 - accepts signal to be compared against VIN1(–).
3	VIN1(–)	Non-inverting input of Comparator 1 - typically connected to reference voltage or threshold.
4	VOUT1	Open-drain output of Comparator 1 - requires external pull-up resistor for logic-high assertion.
5	VIN2(+)	Inverting input of Comparator 2 - independent channel for second threshold comparison.
6	VIN2(–)	Non-inverting input of Comparator 2 - configured separately from Channel 1 inputs.
7	VOUT2	Open-drain output of Comparator 2 - supports independent or shared pull-up with VOUT1.
8	VDD	Positive supply rail (1.8–5.5 V); powers both comparators and internal bias networks.

Key Features

Feature	Design Value
Ultra-low input bias current	1 pA typical - preserves accuracy in nanoamp-level sensor signal paths (e.g., gas sensors, leakage monitors).
Open-drain output architecture	Enables level shifting up to 7 V and wired-OR logic - simplifies interface to mixed-voltage microcontrollers or FPGAs.
Rail-to-rail input common-mode range	Includes ground and extends to VDD–1.2 V - eliminates need for input bias resistors in single-supply designs.
On-chip ESD protection	Qualified to JEDEC JS-001 Class 2 (±2 kV HBM) - enhances robustness in handling and board assembly environments.
Low-voltage operation	Functional down to 1.8 V - supports direct use with modern low-power MCUs and energy-harvesting systems.

Applications

Industrial Sensor Threshold Detection	Battery Voltage Monitoring
Use Scenario: Detecting temperature crossing of a thermistor-based threshold in a factory-floor environmental monitor. IC Role / Device Role / Timing Role: Dual comparator provides independent high/low trip points; open-drain outputs interface directly to 3.3 V MCU GPIO with shared pull-up. Use Value: 1 pA input bias avoids loading high-resistance thermistor network; 100 µA total quiescent current extends battery life in wireless sensor nodes.	Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger under-voltage lockout and over-voltage protection. IC Role / Device Role / Timing Role: One comparator monitors lower threshold (e.g., 2.8 V), the other upper threshold (e.g., 4.3 V); outputs drive enable lines of protection MOSFETs. Use Value: Input common-mode range including ground allows direct sensing of cell voltage without level-shifting; 5 mV offset ensures accurate 50 mV margin detection.
IoT Node Analog Wake-Up Circuit	Multi-Rail System Power Sequencing
Use Scenario: Waking an ultra-low-power MCU from deep sleep when a photodiode current exceeds ambient light threshold. IC Role / Device Role / Timing Role: Comparator 1 detects light event; its open-drain output pulls down MCU interrupt line; Comparator 2 validates secondary condition (e.g., motion). Use Value: 1.8 V minimum supply allows operation from harvested energy; 1 pA bias prevents false triggers from photodiode dark current.	Use Scenario: Ensuring correct power-up order across 1.2 V, 3.3 V, and 5 V rails in an FPGA-based embedded controller. IC Role / Device Role / Timing Role: Each comparator monitors one rail voltage against a precision reference; open-drain outputs feed AND gate to generate global "all-rails-good" signal. Use Value: Independent channels allow simultaneous monitoring; open-drain outputs permit logic-level translation between different supply domains without level shifters.

Industrial Sensor Threshold Detection

Battery Voltage Monitoring

Use Scenario: Detecting temperature crossing of a thermistor-based threshold in a factory-floor environmental monitor.

IC Role / Device Role / Timing Role: Dual comparator provides independent high/low trip points; open-drain outputs interface directly to 3.3 V MCU GPIO with shared pull-up.

Use Value: 1 pA input bias avoids loading high-resistance thermistor network; 100 µA total quiescent current extends battery life in wireless sensor nodes.

Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger under-voltage lockout and over-voltage protection.

IC Role / Device Role / Timing Role: One comparator monitors lower threshold (e.g., 2.8 V), the other upper threshold (e.g., 4.3 V); outputs drive enable lines of protection MOSFETs.

Use Value: Input common-mode range including ground allows direct sensing of cell voltage without level-shifting; 5 mV offset ensures accurate 50 mV margin detection.

IoT Node Analog Wake-Up Circuit

Multi-Rail System Power Sequencing

Use Scenario: Waking an ultra-low-power MCU from deep sleep when a photodiode current exceeds ambient light threshold.

IC Role / Device Role / Timing Role: Comparator 1 detects light event; its open-drain output pulls down MCU interrupt line; Comparator 2 validates secondary condition (e.g., motion).

Use Value: 1.8 V minimum supply allows operation from harvested energy; 1 pA bias prevents false triggers from photodiode dark current.

Use Scenario: Ensuring correct power-up order across 1.2 V, 3.3 V, and 5 V rails in an FPGA-based embedded controller.

IC Role / Device Role / Timing Role: Each comparator monitors one rail voltage against a precision reference; open-drain outputs feed AND gate to generate global "all-rails-good" signal.

Use Value: Independent channels allow simultaneous monitoring; open-drain outputs permit logic-level translation between different supply domains without level shifters.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual open-drain comparator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV3702IDR	Higher supply current (1.3 µA/ch), rail-to-rail output swing, but push-pull output - no inherent level shifting.	Requires external level-shifting circuitry for multi-voltage interfacing; better suited for higher-speed (>1 µs) decisions.	Select TLV3702IDR when faster response (<1 µs) and rail-to-rail output drive are needed, and level shifting is handled externally.
LM393DT	Bipolar input stage (250 nA bias current), wider supply range (2–36 V), but no 1.8 V operation or pA-level bias.	Compatible with legacy 5 V/12 V systems; unsuitable for battery-powered sub-2 V designs or high-impedance sensors.	Select LM393DT for cost-sensitive, wide-supply industrial controls where pA bias and 1.8 V operation are not required.

Compared with TLV3702IDR and LM393DT, HA1631D04TEL-E uniquely combines open-drain flexibility, 1 pA input bias, and 1.8 V operation - making it irreplaceable in ultra-low-power, ground-sensing, multi-rail IoT and portable sensor applications where those three parameters are simultaneously critical.

Availability

HA1631D04TEL-E is available at Aetrix Electronics and suitable for industrial sensor threshold detection, battery voltage monitoring, and IoT node analog wake-up circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for HA1631D04TEL-E 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

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.

The HA1631Dxx series was designed specifically for ultra-low-power, single-supply analog monitoring - targeting portable instrumentation, battery management, and sensor interface applications where picoampere input bias and open-drain flexibility are essential.

FAQ

What is the maximum supply voltage rating for HA1631D04TEL-E?

The absolute maximum supply voltage for HA1631D04TEL-E is 7.0 V, as specified in the Absolute Maximum Ratings table. Continuous operation above 5.5 V is not recommended - the device is characterized and guaranteed for reliable performance only within the operating range of 1.8 V to 5.5 V. Exceeding 7.0 V risks permanent damage to the internal CMOS structure.

Does HA1631D04TEL-E support rail-to-rail input common-mode voltage?

HA1631D04TEL-E supports a common-mode input range from –0.1 V to 2.1 V when VDD = 3.0 V, which includes ground but does not extend fully to VDD. At VDD = 5.5 V, the upper limit is approximately VDD–1.2 V. This design enables true ground-referenced sensing without external biasing, though full rail-to-rail (0 V to VDD) is not supported.

Can HA1631D04TEL-E outputs drive standard TTL or CMOS logic directly?

No - HA1631D04TEL-E has open-drain outputs and cannot source current. To interface with TTL or CMOS logic, an external pull-up resistor to the target logic rail (e.g., 3.3 V or 5 V) is required. The value must be chosen to meet rise-time and fan-out requirements; typical values range from 4.7 kΩ to 100 kΩ depending on capacitive load and speed needs.

What is the typical input offset voltage drift over temperature for HA1631D04TEL-E?

Based on Figure 4-6 in the datasheet, HA1631D04TEL-E exhibits input offset voltage drift of approximately ±1.5 mV over the full operating temperature range of –40 °C to +85 °C, with typical variation centered near 0 mV at 25 °C. This stability supports consistent threshold detection across industrial temperature environments without recalibration.

Is HA1631D04TEL-E pin-compatible with other members of the HA1631Dxx family?

Yes - HA1631D04TEL-E shares identical pinout and package (TSSOP-8) with HA1631D01T, HA1631D02T, HA1631D03T, and all MMPAK-8 variants. However, output type differs: HA1631D01/D02 feature push-pull outputs, while HA1631D03/D04 use open-drain. Swapping requires verifying external circuit compatibility (e.g., pull-up presence, load drive capability).

HA1631D04TEL-E Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: General Purpose

Number of Elements:: 2

Output Type:: Open-Drain, Push-Pull

Voltage - Supply, Single/Dual (±):: 1.8V ~ 5.5V

:: 5mV

Voltage - Input Offset (Max):: 1pA

Current - Input Bias (Max):: 14mA

Current - Output (Typ):: 200µA

Current - Quiescent (Max):: 70dB CMRR, 80dB PSRR

CMRR, PSRR (Typ):: -

Propagation Delay (Max):: -

Hysteresis:: -40°C ~ 85°C

Operating Temperature:: -

Grade:: -

Qualification:: Surface Mount

:: 8-TSSOP

HA1631D04TEL-E FAQ

1.How can I place an order for HA1631D04TEL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for HA1631D04TEL-E 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 HA1631D04TEL-E reliable?

The price and inventory of HA1631D04TEL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HA1631D04TEL-E is usually 5 days.

3.What payment methods are accepted for HA1631D04TEL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HA1631D04TEL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HA1631D04TEL-E?

HA1631D04TEL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HA1631D04TEL-E 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 HA1631D04TEL-E?

For technical support, including HA1631D04TEL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HA1631D04TEL-E requirements.

6.How does Aetrix verify that HA1631D04TEL-E is sourced from the original manufacturer or authorized distributors?

All HA1631D04TEL-E 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 HA1631D04TEL-E meets industry standards.

7.What is the process for return or replacement of HA1631D04TEL-E?

All HA1631D04TEL-E units undergo pre-shipment inspection (PSI). If there is an issue with HA1631D04TEL-E, 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 HA1631D04TEL-E part is unused and in its original packaging.

Return procedure for HA1631D04TEL-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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