NCV2202SN2T1G - 0.85V CMOS Comparator, Open-Drain, SOT-23-5 | onsemi
부품 번호: NCV2202SN2T1G ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 10 | $0.55 | $5.50 |
| 100 | $0.42 | $42.00 |
| 500 | $0.31 | $155.00 |
| 1,000 | $0.24 | $240.00 |
| 3,000 | $0.18 | $540.00 |
NCV2202SN2T1G 개요
What is a low-voltage CMOS comparator? A comparator is an analog circuit that compares two input voltages and produces a binary output indicating which input is larger. Low-voltage CMOS comparators like the NCS2200/NCV2202 series are designed to operate from supply rails below 1V, making them essential building blocks in single-cell battery powered electronics where earlier bipolar comparators could not function. They are widely used for voltage threshold detection, battery monitoring, and system reset generation in portable, IoT, and automotive sensor systems.
The NCV2202SN2T1G features a propagation delay of approximately 1 us, an internal hysteresis for clean switching on slow-moving input signals, and an open-drain output stage that allows the user to pull the output up to any rail up to 6V, independent of VDD. The internal design prevents phase reversal on the inputs when the common-mode voltage is driven beyond the supply rails, preserving output integrity in fault conditions.
The device is built on a sub-micron CMOS process optimized for ultra-low quiescent current, with 0.3 uA consumption when the enable pin is held low (output tri-state). Two industry-standard pinout options exist across the NCS2200 family: SOT-23-5 and SC-88-5 (SC70-5); the SN2T1G suffix denotes the TSOP / SOT-23-5 package on a 7-inch tape-and-reel.
Typical applications include low-battery detection in single-cell Li-ion and alkaline systems, window comparators for voltage monitoring in automotive ECU rails, zero-crossing detectors in motor control, and threshold detectors in IoT sensor nodes. The automotive-grade NCV prefix makes this variant especially suitable for under-the-hood, body, and infotainment ECUs.
When designing with the NCV2202SN2T1G, place a pull-up resistor on the open-drain output (typically 10 kohm to 100 kohm) sized according to the desired propagation speed and power budget. Decouple VDD with a 100 nF ceramic capacitor located within 5 mm of the supply pin.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet alone.
드롭인 대체품: NCV2202SN2T1G — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: NCV2202SN2T1G (동일 폼 팩터 및 풋프린트) — 차이점: Input Common-Mode Range, Output Type, Supply Voltage Range, Automotive Qualification, Comparator Type.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
NCS2202SN2T1G
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
NCS2202SQ2T2G
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TLV3201AIDBVR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MCP6561T-E/OT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LMV331QDBVRQ1
✅ 드롭인✓ 재고 있음
$0.27 / 개
데이터시트 보기 →MAX9100EUK+T
✅ 드롭인✓ 재고 있음
$1.95 / 개
데이터시트 보기 →NCV2202SN2T1G 최대 정격 & 전기적 특성
| Manufacturer | onsemi |
| Product Type | Analog Comparator (single channel) |
| Comparator Family | NCS2200 / NCV2202 series |
| 출력 유형 | Open-Drain |
| Number of Channels | 1 |
| Supply Voltage Range | 0.85 V to 6.0 V |
| Quiescent Supply Current | 10 uA (typical, VDD = 3.0 V) |
| Propagation Delay | 1 us (typical) |
| Input Common-Mode Range | Rail-to-Rail |
| Output Swing | Rail-to-Rail (open-drain, pulled up externally) |
| Internal Hysteresis | Yes (internal hysteresis) |
| Phase Reversal Protection | Yes (no phase reversal on inputs) |
| Enable Pin Function | Yes - pulled low for output tri-state, Iq drops to ~0.3 uA |
| Automotive Qualification | AEC-Q100 qualified (NCV prefix) |
| 패키지 | SOT-23-5 (TSOP), 5 pins |
| 동작 온도 범위 | -40 C to +125 C (automotive grade) |
| 실장 유형 | Surface Mount |
| MSL 레벨 | MSL 1 |
| RoHS 상태 | Compliant |
NCV2202SN2T1G 핀 구성
| 핀 1 | OUT — Open-drain comparator output (requires external pull-up) |
| 핀 2 | GND — Ground / negative supply |
| 핀 3 | IN+ — Non-inverting input |
| 핀 4 | IN- — Inverting input |
| 핀 5 | VDD — Positive supply (0.85V to 6.0V) |
일반적인 애플리케이션
NCV2202SN2T1G 적합 용도: 7 애플리케이션s: Low-Battery Detection (Single-Cell Li-ion / Alkaline), Automotive ECU Voltage Rail Monitoring, IoT Sensor Threshold Detection, Zero-Crossing Detector in Motor Control, System Reset / Voltage Supervisor, Window Comparator for Power Good Signals, Oscillator / Relaxation Oscillator Circuit.
Low-Battery Detection (Single-Cell Li-ion / Alkaline)
The NCV2202SN2T1G is ideal for low-battery detection in single-cell Li-ion and alkaline powered systems because its 0.85V minimum supply voltage allows it to operate from a nearly depleted battery. At 10 uA quiescent current, it adds negligible load to the cell, and the open-drain output drives an interrupt pin or LED indicator through a single pull-up resistor. Compared with traditional bipolar comparators that require >2V supply, the NCV2202 monitors the rail down to the cutoff voltage, extending usable battery life. The AEC-Q100 NCV prefix ensures reliability in field-deployed nodes and automotive key fobs.
추천
Automotive ECU Voltage Rail Monitoring
The NCV2202SN2T1G serves as a window comparator or under-voltage detector on automotive ECU rails thanks to its AEC-Q100 qualification and -40C to +125C operating range. With 0.85V to 6.0V supply, it directly monitors 3.3V and 5V rails without auxiliary dividers for low-voltage thresholds. The 1 us propagation delay captures transients on ignition-switched rails, while the internal hysteresis prevents chattering near the trip threshold. Engineers place it on body, chassis, and infotainment ECUs as a first-line fault detector feeding the microcontroller reset supervisor.
추천
IoT Sensor Threshold Detection
IoT sensor nodes benefit from the NCV2202SN2T1G's 0.85V minimum supply and 10 uA quiescent current for always-on threshold detection on coin-cell powered systems. It can wake the MCU from deep sleep when an analog sensor crosses a set threshold, enabling event-driven sampling that extends battery life to multi-year horizons. The open-drain output supports wired-OR connection of multiple comparators to a single interrupt line, reducing GPIO count on resource-constrained MCUs. The SOT-23-5 footprint integrates into sub-50 mm^2 sensor PCBs.
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Zero-Crossing Detector in Motor Control
In motor control and TRIAC dimming circuits, the NCV2202SN2T1G functions as a zero-crossing detector that identifies AC mains zero-cross events to the gate driver. With rail-to-rail input common-mode range, it accepts the rectified AC waveform directly without bias networks. The 1 us propagation delay provides adequate accuracy for 50/60 Hz line-frequency applications. The open-drain output interfaces directly to an optocoupler or MCU capture input, providing galvanic isolation when paired with an optoisolator.
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System Reset / Voltage Supervisor
The NCV2202SN2T1G implements a low-voltage reset supervisor for microcontrollers that lack an internal SVD (supply voltage detector). It holds the MCU in reset until the rail exceeds a resistor-set threshold, preventing code execution at indeterminate voltages. The 0.85V to 6.0V range covers 1.8V, 3.3V, and 5V rails without auxiliary bias. Compared to dedicated supervisor ICs, the NCV2202 is more flexible on threshold via external resistors but adds the BOM cost of the resistor divider.
추천
Window Comparator for Power Good Signals
Two NCV2202SN2T1G devices form a window comparator that verifies a power rail stays within an upper and lower bound, generating a single Power-Good signal via open-drain wired-OR connection. This is common in redundant power systems, server CRPS rails, and safety-critical automotive applications. The 10 uA Iq per channel keeps total monitor consumption below 25 uA even with two comparators, making it suitable for always-on rails. The SOT-23-5 dual-comparator PCB layout fits in less than 20 mm^2.
추천
Oscillator / Relaxation Oscillator Circuit
The NCV2202SN2T1G with external resistor and capacitor forms a low-frequency relaxation oscillator that generates clocks for blinking LEDs, simple timers, or tone generation. Operating from 0.85V to 6.0V, the oscillator frequency scales linearly with supply, useful for voltage-to-frequency conversion in low-cost sensor signal chains. The 1 us propagation delay limits maximum frequency to roughly 200 kHz, but the low Iq (10 uA) keeps standby power negligible. AEC-Q100 qualification supports automotive indicator circuits.
추천
추천 제품 요약
엔지니어링 참조 데이터: NCV2202SN2T1G — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | NCS2202SN2T1G | TLV3201AIDBVR | MCP6561T-E/OT | LMV331QDBVRQ1 | MAX9100EUK+T |
|---|---|---|---|---|---|---|
| Brand | onsemi | onsemi | Texas Instruments | Microchip Technology | Texas Instruments | Analog Devices |
| Package | SOT-23-5 (TSOP) | SOT-23-5 - same | SOT-23-5 - same | SOT-23-5 - same | SOT-23-5 - same | SOT-23-5 - same |
| Supply Voltage Range | 0.85 V to 6.0 V | 0.85 V to 6.0 V | 2.7 V to 5.5 V | 1.8 V to 5.5 V | 2.7 V to 5.5 V | 4.5 V to 5.5 V |
| Quiescent Current (typ) | 10 uA | 10 uA | 40 uA | 1.1 uA | 120 uA | 1300 uA (1.3 mA) |
| Propagation Delay (typ) | 1 us | 1 us | 0.04 us (40 ns) | 0.022 us (22 ns) | 0.2 us (200 ns) | 0.025 us (25 ns) |
| Output Type | Open-Drain | Open-Drain | Push-Pull | Push-Pull | Open-Drain | Push-Pull (TTL) |
| Input Common-Mode Range | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | (-V) to (V+ - 1.5V) |
| Automotive Qualification | AEC-Q100 (NCV prefix) | Commercial (NCS prefix) | Commercial | Extended temp | AEC-Q100 | Commercial |
| Operating Temperature | -40 C to +125 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C |
주요 차별점
- Industry-first sub-1V operation in AEC-Q100 grade (vs LMV331QDBVRQ1)
- Lowest quiescent current at sub-1V in SOT-23-5 (vs TLV3201AIDBVR)
- Open-drain output enables wired-OR and level shifting (vs MCP6561T-E/OT)
설계 노트
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of the VDD pin (pin 5) to suppress supply noise that propagates to the input reference and can cause spurious output transitions. For high-impedance input signals, add a 100 pF to 1 nF bypass across the input pins to filter RF coupling. Keep input traces short and guarded with a ground pour to reduce parasitic capacitance that may slow the comparator response.
Do not leave the open-drain output (pin 1) floating - it requires a pull-up resistor between 10 kohm and 100 kohm to a valid rail. Forgetting the pull-up results in an undefined output state. Also, do not apply input voltages beyond the absolute maximum of -0.3V to (VDD + 0.3V) or the ESD diodes may conduct. If Hysteresis tuning is needed, an external positive-feedback resistor between OUT and IN+ adjusts the threshold band.
When monitoring slow-moving analog signals (e.g., battery voltage ramps), the internal hysteresis prevents chatter near the trip point, but slow edges (<1 V/ms) can still cause oscillation in noisy environments. Add an RC low-pass filter (10 kohm and 100 pF) at the input to band-limit noise. The 1 us propagation delay is fast enough for most threshold applications but may be inadequate for high-speed pulse detection above 100 kHz repetition rate.
규정 준수 정보
AEC-Q100 qualified per NCV prefix; PPAP documentation available from onsemi. RoHS and REACH compliant per onsemi product page. Halogen-free per onsemi MSL documentation.
