Renesas UPC177G2(21)-E2-A
- Part No.:
- UPC177G2(21)-E2-A
- Manufacturer:
- Renesas
- Category:
- Comparators
- Package:
- 14-SOIC (0.173", 4.40mm Width)
- Datasheet:
-
UPC177G2(21)-E2-A.pdf
- Description:
- ANALOG:GENERAL-PURPOSE LINEAR
- Quantity:
- Payment:

- Shipping:

Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UPC177G2(21)-E2-A from Renesas Electronics is a single-supply quad comparator IC with open-collector outputs, ±2 mV typical input offset voltage, 1.3 µs typical pulse response time, and operation from +2 V to +32 V supply. It serves as a voltage comparison engine in industrial control interfaces, power supply monitoring circuits, and threshold-detection subsystems.
For engineers reviewing the UPC177G2(21)-E2-A datasheet, UPC177G2(21)-E2-A pinout, UPC177G2(21)-E2-A application, or UPC177G2(21)-E2-A equivalent, key selection criteria include common-mode input range (0 V to V+ −1.5 V), output sink current capability (6–16 mA), temperature range (−40 °C to +85 °C), and SOP-14 package compatibility.
Technical Context
The UPC177G2(21)-E2-A implements four independent PNP-input comparators in a single die, enabling rail-to-rail common-mode input operation down to V− (GND) with no phase reversal. Its open-collector outputs support wired-OR logic and flexible pull-up configurations across diverse load voltages.
Designed for communication-industry applications per Renesas documentation, it features low input bias current (25 nA typ.), high DC gain (200,000 typ.), and robust absolute maximum ratings including ±36 V differential input voltage and indefinite output short-circuit duration to GND.
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 | ±2 mV (typical); ensures accurate threshold detection within ±2 mV at room temperature |
| Pulse Response Time | 1.3 µs (typical, 100 mV input step, 5 mV overdrive); supports fast edge detection in timing-critical monitoring |
| Output Sink Current | 6–16 mA (min–typ); drives LEDs, relays, or logic inputs directly without external buffers |
| Common-Mode Input Range | 0 V to V+ −1.5 V (typical); accepts inputs from ground up to 1.5 V below supply, simplifying sensor interfacing |
| Operating Temperature | −40 °C to +85 °C; qualified for industrial ambient environments without derating |
| Input Bias Current | 25 nA (typical); minimizes loading on high-impedance sources such as thermistors or photodiodes |
Pinout & Package
UPC177G2(21)-E2-A is housed in a 14-pin plastic SOP package (JEITA code P-LSOP14-4.4×10.2-1.27, Renesas code PLSP0014DB-A, 0.17 g typical mass), with embossed tape packaging (E2 denotes pin 1 at take-up side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (open-collector) | Each sinks current when corresponding comparator output is active low; requires external pull-up for logic HIGH |
| 2, 3, 5, 6, 9, 10, 12, 13 | Inverting/Non-inverting Inputs (II/IN) | Differential input pairs for four independent comparators; inputs tolerate V− −0.3 V to V− +36 V |
| 4 | V+ (positive supply) | Main power rail connection; supports 2–32 V single supply or ±1–±16 V dual supply |
| 11 | V− (negative supply / GND) | Reference return node; common-mode input extends to this pin (0 V minimum) |
Key Features
| Feature | Design Value |
|---|---|
| Open-collector outputs | Enable wired-OR logic, mixed-voltage interfacing, and direct drive of loads up to 16 mA per channel |
| Low input offset voltage | ±2 mV typical ensures precise voltage window detection without calibration in most industrial designs |
| Wide common-mode input range | 0 V to V+ −1.5 V allows direct sensing of signals referenced to GND or mid-supply without attenuators |
| Low quiescent current | 0.8–2 mA total supply current enables use in battery-backed or energy-sensitive monitoring nodes |
| Robust ESD and overvoltage tolerance | ±36 V differential input rating and clamping diode guidance protect against transient coupling in noisy environments |
Applications
| Power Supply UVLO Detection | Industrial Sensor Threshold Monitoring |
|---|---|
Use Scenario: Detecting undervoltage lockout (UVLO) in 12 V or 24 V DC power rails before system startup. IC Role / Device Role / Timing Role: Quad comparator compares rail voltage against precision reference to assert reset or enable signals. Use Value: ±2 mV offset and 1.3 µs response ensure fast, repeatable trip points across temperature without trimming. | Use Scenario: Monitoring analog outputs from pressure, temperature, or flow sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Four independent channels compare sensor outputs against programmable thresholds to trigger alarms or control actions. Use Value: Common-mode range extending to GND allows direct interface with 0–5 V or 0–10 V industrial sensors. |
| Motor Overcurrent Protection | Communications Line Signal Conditioning |
Use Scenario: Detecting excessive current via shunt voltage in motor driver feedback loops. IC Role / Device Role / Timing Role: Compares amplified shunt voltage against fixed or adjustable trip level to disable gate drivers. Use Value: 16 mA sink current drives optocoupler inputs directly, enabling fast fault isolation without buffer stages. | Use Scenario: Level-shifting and noise-immune signal recovery in RS-485 receiver front-ends or modem line interfaces. IC Role / Device Role / Timing Role: Converts differential line signals into clean digital logic levels using hysteresis configuration. Use Value: Open-collector outputs simplify pull-up to logic supply (e.g., 3.3 V), while 25 nA bias current avoids loading high-Z receivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher input offset (±2.5 mV max), wider temp range (−40 °C to +125 °C), same SOP-14 package | Qualified for automotive underhood use; lacks Renesas' communication-industry qualification focus | Select when extended temperature or AEC-Q200 alignment is required; verify hysteresis design for noise immunity |
| TL331IDBVR | Single-channel, SOT-23-5 package, lower supply current (60 µA), but only one comparator per unit | Used where board space is constrained and channel count is low; not drop-in for quad-channel layouts | Choose for ultra-low-power, discrete-channel implementations; requires four units and additional PCB area vs. single UPC177G2(21)-E2-A |
Compared with LM339DR and TL331IDBVR, UPC177G2(21)-E2-A delivers tighter offset voltage (±2 mV typ), optimized common-mode range for GND-referenced inputs, and Renesas' communication-industry qualification-making it preferred for telecom power management and industrial sensor aggregation where precision and application-specific reliability matter.
Availability
UPC177G2(21)-E2-A is available at Aetrix Electronics and suitable for power supply monitoring, industrial sensor interface, and communications line conditioning requiring stable component supply and long-term production continuity.
Supply support for UPC177G2(21)-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and communications markets.
The UPC177G2 series belongs to Renesas' legacy analog comparator product line, designed specifically for single-supply, high-precision voltage comparison in communication infrastructure equipment.
FAQ
What is the operating supply voltage range for UPC177G2(21)-E2-A?
The UPC177G2(21)-E2-A operates from +2 V to +32 V on a single supply, or ±1 V to ±16 V in dual-supply mode. This wide range allows direct integration into 3.3 V, 5 V, 12 V, and 24 V systems without external regulators. The device maintains specified performance-including input offset and response time-across this full range, as confirmed in the R03DS0139EJ0200 datasheet's Recommended Operating Conditions table.
Does UPC177G2(21)-E2-A support rail-to-rail input operation?
UPC177G2(21)-E2-A supports common-mode input voltages from V− (GND) up to V+ −1.5 V, meaning it accepts inputs down to ground but does not reach the positive rail. This GND-referenced range is ideal for sensors and signals referenced to system ground. The datasheet explicitly states VICM = 0 V to V+ −1.5 V at TA = 25 °C, and confirms functionality even when inputs fall slightly below V− (with clamping guidance).
What is the output configuration of UPC177G2(21)-E2-A and how should it be used?
UPC177G2(21)-E2-A features open-collector outputs on pins 1, 7, 8, and 14. Each output sinks current when active and requires an external pull-up resistor to define the logic HIGH voltage. This configuration enables wired-OR logic, level translation, and direct drive of LEDs or transistor bases. The datasheet specifies a typical sink current of 16 mA per output, with absolute maximum ratings allowing indefinite short-circuit to GND.
How does the input bias current behavior affect circuit design with UPC177G2(21)-E2-A?
The UPC177G2(21)-E2-A uses PNP-input transistors, resulting in input bias current flowing *out* of both IN and II pins (25 nA typical). During active comparison, current flows twice as much toward the lower-potential input terminal. Designers must account for this in high-impedance networks-e.g., by balancing source impedances or selecting pull-up/down resistors ≤100 kΩ-to avoid offset errors exceeding ±2 mV. The datasheet's Note 6 and "Regarding Input Current" section detail this behavior.
Is UPC177G2(21)-E2-A pin-compatible with UPC339G2-AP or other variants in the same family?
Yes-UPC177G2(21)-E2-A shares identical pinout, package (SOP-14), and electrical interface with UPC339G2-AP and all other G2-suffix variants in the UPC177/UPC339 family. Differences lie in qualification grade (UPC177G2 for communication industry, UPC339G2 for general purpose) and guaranteed temperature range (−40 °C to +85 °C vs. −20 °C to +80 °C). No PCB layout change is needed when substituting within the same package variant.
UPC177G2(21)-E2-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 14-SOIC (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 ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOP
UPC177G2(21)-E2-A FAQ
1.How can I place an order for UPC177G2(21)-E2-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPC177G2(21)-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 UPC177G2(21)-E2-A reliable?
The price and inventory of UPC177G2(21)-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 UPC177G2(21)-E2-A is usually 5 days.
3.What payment methods are accepted for UPC177G2(21)-E2-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPC177G2(21)-E2-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPC177G2(21)-E2-A?
UPC177G2(21)-E2-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPC177G2(21)-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 UPC177G2(21)-E2-A?
For technical support, including UPC177G2(21)-E2-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPC177G2(21)-E2-A requirements.
6.How does Aetrix verify that UPC177G2(21)-E2-A is sourced from the original manufacturer or authorized distributors?
All UPC177G2(21)-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 UPC177G2(21)-E2-A meets industry standards.
7.What is the process for return or replacement of UPC177G2(21)-E2-A?
All UPC177G2(21)-E2-A units undergo pre-shipment inspection (PSI). If there is an issue with UPC177G2(21)-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 UPC177G2(21)-E2-A part is unused and in its original packaging.
Return procedure for UPC177G2(21)-E2-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UPC177G2(21)-E2-A Tags

-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments

-
LM339PWR
Texas Instruments

-
LM393DT
STMicroelectronics

-
LM2901PWR
Texas Instruments

-
LM2903DT
STMicroelectronics

-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments

-
LM339APWR
Texas Instruments

-
LM2903P
Texas Instruments

-
LM393ADR
Texas Instruments

-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
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.
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.
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…
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…
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…
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 …
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…
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…
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…
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…

