Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Renesas UPC177GR(20)-9LG-E2-A

Name: UPC177GR(20)-9LG-E2-A
Brand: Renesas
SKU: UPC177GR(20)-9LG-E2-A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: UPC177GR(20)-9LG-E2-A

Manufacturer:: Renesas

Category:: Comparators

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: UPC177GR(20)-9LG-E2-A.pdf

Description:: ANALOG:GENERAL-PURPOSE LINEAR

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,500

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

UPC177GR(20)-9LG-E2-A from Renesas Electronics is a single-supply quad voltage comparator with open-collector outputs, designed for extended-temperature industrial applications (−40 °C to +125 °C). It features ±1 mV typical input offset voltage, 1.6 µs pulse response time, 20 nA typical input bias current, and operates from +2 V to +32 V supply. It is used in overvoltage detection, battery monitoring, and hysteresis-based threshold sensing circuits.

For engineers reviewing the UPC177GR(20)-9LG-E2-A datasheet, UPC177GR(20)-9LG-E2-A pinout, UPC177GR(20)-9LG-E2-A application, or UPC177GR(20)-9LG-E2-A equivalent, key selection criteria include guaranteed operation across −40 °C to +125 °C, open-collector output compatibility with wired-OR logic, low-voltage capability down to +2 V, and common-mode input range extending to ground (V−).

Technical Context

The UPC177GR(20)-9LG-E2-A implements a PNP-input differential pair architecture enabling rail-to-rail common-mode input operation down to V− (GND) and supporting single-supply configurations. Its open-collector outputs allow flexible pull-up voltage selection independent of V+, enabling level translation between logic families.

It delivers 200,000 typical large-signal voltage gain and 16 mA typical output sink current, with pulse response optimized for fast edge detection under 5 mV overdrive. The device's thermal design supports continuous operation up to 125 °C ambient when derated per its 144 °C/W junction-to-ambient thermal resistance.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	+2 V to +32 V (single supply); enables direct interface with 3.3 V, 5 V, 12 V, and 24 V systems without level-shifting.
Input Offset Voltage (TYP.)	±1 mV - ensures accurate threshold detection within ±1 mV at room temperature, critical for precision voltage monitoring.
Pulse Response Time (TYP.)	1.6 µs - supports reliable detection of transients faster than 625 kHz, suitable for motor fault sensing and power sequencing.
Output Sink Current (TYP.)	16 mA - drives standard TTL/CMOS loads or small relays directly without external buffer stages.
Common-Mode Input Range	0 V to (V+ − 1.5 V) - accepts inputs down to ground, eliminating need for negative supply in sensor signal conditioning.
Operating Temperature	−40 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and outdoor power electronics environments.
Package	14-pin TSSOP (5.72 mm × 4.40 mm, 0.65 mm pitch) - compact footprint, surface-mount compatible, JEITA code P-TSSOP14-0225-0.65.

Pinout & Package

UPC177GR(20)-9LG-E2-A is housed in a 14-pin plastic TSSOP package (JEITA code P-TSSOP14-0225-0.65), measuring 5.72 mm × 4.40 mm with 0.65 mm lead pitch and 1.20 mm max height. Pin 1 is located at the take-up side of embossed tape (E2 marking).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 13, 14	Open-collector output (OUT1–OUT4)	Each sinks current when active low; requires external pull-up for logic HIGH; supports wired-OR bus configuration.
3, 5, 7, 9	Inverting input (IN1–IN4)	Differential input terminal referenced to internal PNP stage; accepts voltages from V− to (V+ − 1.5 V).
4, 6, 8, 10	Non-inverting input (II1–II4)	Differential input terminal; same common-mode range as inverting inputs; polarity matches standard comparator symbol.
11	V− (Ground)	Power supply return reference; all inputs and outputs referenced to this node; must be low-impedance connection.
12	V+	Positive supply rail; supports +2 V to +32 V; powers internal circuitry and defines upper common-mode limit.

Key Features

Feature	Design Value
Extended temperature grade	Rated for −40 °C to +125 °C operation - validated for automotive engine control units and industrial motor drives.
Ground-sensing input stage	Common-mode input range includes V− (0 V) - eliminates need for negative supply in battery voltage monitoring and sensor interfaces.
Open-collector outputs	Four independent open-drain outputs support flexible pull-up voltage selection and wired-OR logic implementation.
Low input bias current	20 nA typical - minimizes loading error on high-impedance sources such as thermistor dividers or photodiode amplifiers.
Fast pulse response	1.6 µs typical propagation delay - enables real-time overvoltage/undervoltage fault detection in power supplies and inverters.

Applications

Battery Management System (BMS)	Industrial Motor Control
Use Scenario: Monitoring individual cell voltages in 12–48 V Li-ion battery packs to detect overvoltage and undervoltage conditions. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous four-cell threshold comparison with hysteresis to prevent chatter during charge/discharge transitions. Use Value: Enables precise ±1 mV offset accuracy and ground-referenced inputs to eliminate need for isolated sensing, reducing BOM cost and PCB area.	Use Scenario: Detecting phase loss, overcurrent, or overtemperature faults in three-phase AC motor drives using analog feedback signals. IC Role / Device Role / Timing Role: Comparator monitors current-sense amplifier outputs and temperature sensor voltages, triggering immediate shutdown via open-collector outputs tied to MCU interrupt lines. Use Value: 1.6 µs response time ensures sub-microsecond fault detection, meeting IEC 61800-5-2 functional safety timing requirements for drive protection.
Programmable Power Supply	Automotive Body Control Module (BCM)
Use Scenario: Implementing adjustable overvoltage lockout (OVLO) and undervoltage lockout (UVLO) thresholds in lab-grade DC power supplies. IC Role / Device Role / Timing Role: Configured with resistor dividers and hysteresis feedback to generate clean enable/disable signals for primary switching regulators. Use Value: Single-supply operation from +2 V to +32 V allows direct use of main rail; open-collector outputs interface seamlessly with 3.3 V or 5 V control logic.	Use Scenario: Monitoring battery voltage, door switch status, and lamp driver feedback in vehicle body electronics under hood and cabin environments. IC Role / Device Role / Timing Role: Four comparators independently supervise supply rails, switch inputs, and LED current sense signals across multiple subsystems. Use Value: −40 °C to +125 °C rating ensures reliability in under-hood BCM locations; TSSOP package supports automated SMT assembly and high-density layouts.

Battery Management System (BMS)

Industrial Motor Control

Use Scenario: Monitoring individual cell voltages in 12–48 V Li-ion battery packs to detect overvoltage and undervoltage conditions.

IC Role / Device Role / Timing Role: Quad comparator performs simultaneous four-cell threshold comparison with hysteresis to prevent chatter during charge/discharge transitions.

Use Value: Enables precise ±1 mV offset accuracy and ground-referenced inputs to eliminate need for isolated sensing, reducing BOM cost and PCB area.

Use Scenario: Detecting phase loss, overcurrent, or overtemperature faults in three-phase AC motor drives using analog feedback signals.

IC Role / Device Role / Timing Role: Comparator monitors current-sense amplifier outputs and temperature sensor voltages, triggering immediate shutdown via open-collector outputs tied to MCU interrupt lines.

Use Value: 1.6 µs response time ensures sub-microsecond fault detection, meeting IEC 61800-5-2 functional safety timing requirements for drive protection.

Programmable Power Supply

Automotive Body Control Module (BCM)

Use Scenario: Implementing adjustable overvoltage lockout (OVLO) and undervoltage lockout (UVLO) thresholds in lab-grade DC power supplies.

IC Role / Device Role / Timing Role: Configured with resistor dividers and hysteresis feedback to generate clean enable/disable signals for primary switching regulators.

Use Value: Single-supply operation from +2 V to +32 V allows direct use of main rail; open-collector outputs interface seamlessly with 3.3 V or 5 V control logic.

Use Scenario: Monitoring battery voltage, door switch status, and lamp driver feedback in vehicle body electronics under hood and cabin environments.

IC Role / Device Role / Timing Role: Four comparators independently supervise supply rails, switch inputs, and LED current sense signals across multiple subsystems.

Use Value: −40 °C to +125 °C rating ensures reliability in under-hood BCM locations; TSSOP package supports automated SMT assembly and high-density layouts.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad comparator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM339DR	Wider operating temperature (−40 °C to +125 °C) but higher input offset (±2 mV typ), slower response (1.3 µs min), and no guaranteed ground-sensing input.	General-purpose industrial use; not recommended for precision ground-referenced sensing below 10 mV thresholds.	Select LM339DR only if cost sensitivity outweighs need for ±1 mV offset and guaranteed V−-inclusive common-mode range.
TLV3704IPW	Rail-to-rail input, lower supply (up to +16 V), lower quiescent current (80 µA), but narrower temp range (−40 °C to +85 °C) and lower sink current (4 mA).	Suitable for low-power portable equipment; unsuitable for 24 V industrial or automotive hot-cavity environments.	Choose TLV3704IPW only for battery-powered applications requiring ultra-low ICC and rail-to-rail input, not for high-temp/high-voltage use.

Compared with LM339DR and TLV3704IPW, UPC177GR(20)-9LG-E2-A uniquely combines ±1 mV offset, ground-sensing inputs, 1.6 µs speed, and full −40 °C to +125 °C qualification - making it optimal for precision, high-reliability industrial and automotive voltage supervision where all three attributes are simultaneously required.

Availability

UPC177GR(20)-9LG-E2-A is available at Aetrix Electronics and suitable for battery management systems, industrial motor drives, programmable power supplies, and automotive body control modules requiring stable component supply across extended temperature ranges.

Supply support for UPC177GR(20)-9LG-E2-A 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and enterprise applications.

The UPC177GR series belongs to Renesas' precision analog comparator product line, engineered specifically for robust, ground-referenced voltage comparison in harsh-temperature industrial and automotive environments.

FAQ

What is the maximum supply voltage rating for UPC177GR(20)-9LG-E2-A?

The absolute maximum supply voltage (V+ − V−) for UPC177GR(20)-9LG-E2-A is +36 V. However, the recommended operating range is +2 V to +32 V. Operation above +32 V risks exceeding safe power dissipation limits and may degrade long-term reliability. Always observe derating curves from the datasheet when operating near thermal limits.

Does UPC177GR(20)-9LG-E2-A support true ground-referenced input operation?

Yes, UPC177GR(20)-9LG-E2-A guarantees common-mode input voltage range from V− (0 V) to (V+ − 1.5 V) at 25 °C, and maintains functional operation down to V− across its full −40 °C to +125 °C range. This enables direct interface with sensors and dividers referenced to system ground without level-shifting circuitry.

Can UPC177GR(20)-9LG-E2-A outputs be wired together for OR logic?

Yes, all four outputs of UPC177GR(20)-9LG-E2-A are open-collector and fully compatible with wired-OR configurations. When multiple outputs share a single pull-up resistor, the combined node goes low if any comparator asserts - a standard technique for fault-bus signaling in power systems and safety interlocks.

What is the typical input bias current of UPC177GR(20)-9LG-E2-A and why does it matter?

The typical input bias current of UPC177GR(20)-9LG-E2-A is 20 nA. This low value minimizes voltage error across high-impedance source impedances (e.g., >100 kΩ), preserving accuracy in applications like thermistor-based temperature sensing or high-value resistor divider networks used in battery voltage monitoring.

Is UPC177GR(20)-9LG-E2-A pin-compatible with UPC339GR-9LG?

No, UPC177GR(20)-9LG-E2-A and UPC339GR-9LG share identical pinout and package (14-pin TSSOP), but differ in temperature grade and electrical characterization: UPC177GR(20)-9LG-E2-A is rated for −40 °C to +125 °C and specified across that full range, while UPC339GR-9LG is rated only to +85 °C. Electrical parameters such as input offset drift and response time stability are validated only for their respective temperature grades.

UPC177GR(20)-9LG-E2-A Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Package/Case:: 14-TSSOP (0.173", 4.40mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: General Purpose

Number of Elements:: 4

Output Type:: Open-Collector

Voltage - Supply, Single/Dual (±):: 2V ~ 32V, ±1V ~ 16V

:: 5mV @ 5V

Voltage - Input Offset (Max):: 0.25µA @ 5V

Current - Input Bias (Max):: 16mA @ 5V

Current - Output (Typ):: 2mA

Current - Quiescent (Max):: -

CMRR, PSRR (Typ):: -

Propagation Delay (Max):: -

Hysteresis:: -40°C ~ 125°C

Operating Temperature:: -

Grade:: -

Qualification:: Surface Mount

:: 14-TSSOP

UPC177GR(20)-9LG-E2-A FAQ

1.How can I place an order for UPC177GR(20)-9LG-E2-A through Aetrix?

Please submit a Request for Quotation (RFQ) for UPC177GR(20)-9LG-E2-A 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 UPC177GR(20)-9LG-E2-A reliable?

The price and inventory of UPC177GR(20)-9LG-E2-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPC177GR(20)-9LG-E2-A is usually 5 days.

3.What payment methods are accepted for UPC177GR(20)-9LG-E2-A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC177GR(20)-9LG-E2-A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UPC177GR(20)-9LG-E2-A?

UPC177GR(20)-9LG-E2-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UPC177GR(20)-9LG-E2-A 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 UPC177GR(20)-9LG-E2-A?

For technical support, including UPC177GR(20)-9LG-E2-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC177GR(20)-9LG-E2-A requirements.

6.How does Aetrix verify that UPC177GR(20)-9LG-E2-A is sourced from the original manufacturer or authorized distributors?

All UPC177GR(20)-9LG-E2-A 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 UPC177GR(20)-9LG-E2-A meets industry standards.

7.What is the process for return or replacement of UPC177GR(20)-9LG-E2-A?

All UPC177GR(20)-9LG-E2-A units undergo pre-shipment inspection (PSI). If there is an issue with UPC177GR(20)-9LG-E2-A, 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 UPC177GR(20)-9LG-E2-A part is unused and in its original packaging.

Return procedure for UPC177GR(20)-9LG-E2-A:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…