My Inquiry
My Account
Texas Instruments LMC7225IM5X
- Part No.:
- LMC7225IM5X
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMC7225IM5X.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,600
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMC7225IM5X from Texas Instruments is a micro-power, rail-to-rail CMOS comparator with open-drain output, designed for ultra-low-power battery-operated systems. It delivers 0.7 μA typical supply current, operates from 2V to 8V, supports input common-mode voltage beyond rails (−0.3 V to 5.3 V at VS = 5 V), and drives loads up to 30 mA sink current. It is used in precision threshold detection within handheld meters and low-voltage alarm circuits.
For engineers reviewing the LMC7225IM5X datasheet, LMC7225IM5X pinout, LMC7225IM5X application, or LMC7225IM5X equivalent, this page provides verified functional identity, SOT-23-5 package mapping, confirmed open-drain output behavior, rail-to-rail input range, and two validated alternative comparators for low-power single-supply designs.
Technical Context
The LMC7225IM5X implements a CMOS input stage with diode-clamped inputs enabling input voltages up to 0.3 V beyond V+ and V−, critical for direct sensing of supply rails or high-side current shunts. Its open-drain output requires an external pull-up resistor, allowing level shifting to voltages as high as 15 V independent of VS.
It features 140 dB open-loop voltage gain and 10,000 V/mV effective gain, ensuring clean digital transitions even with sub-millivolt overdrive. Propagation delay is 24 μs (high-to-low) and 29 μs (low-to-high) at 10 mV overdrive and 5 V supply, with rise/fall times dependent on external RPULL-UP and load capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 0.7 μA typical - enables multi-year operation on coin-cell batteries in always-on monitoring circuits. |
| Supply Voltage Range | 2 V to 8 V - supports direct use with Li-ion, alkaline, or regulated 3.3 V/5 V rails without LDO pre-regulation. |
| Input Common-Mode Range | −0.3 V to 5.3 V at VS = 5 V - permits direct connection to VS or ground-referenced sense resistors without attenuation. |
| Output Type | Open-drain - allows wired-OR logic, interface to higher-voltage logic families (e.g., 12 V), and flexible pull-up selection. |
| Propagation Delay | 24 μs (tPHL) / 29 μs (tPLH) @ 10 mV overdrive, 5 V - suitable for RC timer thresholds and slow-varying analog signals. |
| Input Offset Voltage | 6 mV max - ensures reliable detection of ≥10 mV signal margins in precision window or zero-crossing applications. |
| ESD Tolerance | 2 kV HBM - meets basic handling requirements for assembly in non-classified environments. |
Pinout & Package
LMC7225IM5X is housed in a 5-pin SOT-23 package (JEDEC MO-178, TI drawing DBV), measuring 2.9 mm × 1.6 mm × 1.45 mm, with gull-wing leads and RoHS-compliant Sn (SN) finish. Pin 1 is marked by a dot or beveled edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | Accepts rail-to-rail analog signals; internally clamped to V+ and V− for overvoltage tolerance. |
| 2 (IN−) | Inverting input | Same clamping and common-mode range as IN+; differential input voltage limited to ±(V+ + 0.3 V). |
| 3 (GND) | Ground reference | Return path for supply and output sink current; must be low-impedance for stable propagation timing. |
| 4 (OUT) | Open-drain output | Drains current only; requires external pull-up to define logic HIGH level and drive strength. |
| 5 (V+) | Positive supply | Supplies internal bias; also defines upper limit of input common-mode range and output pull-up compatibility. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with beyond-rail tolerance | Enables direct sensing of VS, battery voltage, or high-side current shunt without level-shifting circuitry. |
| 0.7 μA typical supply current | Reduces quiescent power in always-on comparators-e.g., battery fuel gauges or wake-up monitors-by >90% vs. standard comparators. |
| Open-drain output with 30 mA sink capability | Supports driving LEDs, MOSFET gates, or interfacing to 3.3 V/5 V/12 V logic with a single external resistor. |
| 140 dB voltage gain and 10,000 V/mV effective gain | Eliminates metastability near trip points; ensures monotonic output transition with ≤1 μV input change. |
| Latch-up resistance >300 mA | Withstands transient ESD or fault currents without destructive latch-up, improving field reliability in industrial sensors. |
Applications
| Battery Voltage Monitor | RC Timer Threshold Detector |
|---|---|
|
Use Scenario: Detecting when a 3.7 V Li-ion cell drops below 3.3 V to trigger low-battery warning or system shutdown. IC Role / Device Role / Timing Role: Precision threshold comparator comparing divided battery voltage against internal reference or fixed resistor divider. Use Value: 0.7 μA quiescent current extends standby life; rail-to-rail input allows direct sensing without op-amp buffer. |
Use Scenario: Generating precise time delays in portable medical devices using an R-C network charged from a GPIO. IC Role / Device Role / Timing Role: Threshold detector triggering on capacitor voltage crossing a set point, initiating next state in finite-state machine. Use Value: 24–29 μs propagation delay ensures predictable timing accuracy; open-drain output interfaces directly to MCU interrupt pin. |
| Handheld Meter Overrange Alert | Low-Power Alarm Circuit |
|
Use Scenario: Indicating sensor saturation in a portable multimeter when input exceeds full-scale range. IC Role / Device Role / Timing Role: Fast-response comparator detecting overvoltage condition on analog front-end output. Use Value: Input common-mode range extending 0.3 V beyond V+ enables direct connection to ADC output rail without attenuation. |
Use Scenario: Activating audible alert when temperature exceeds preset limit in battery-powered environmental logger. IC Role / Device Role / Timing Role: Window or single-threshold comparator driving buzzer via open-drain output and pull-up resistor. Use Value: 30 mA sink current drives buzzer directly; 2 kV HBM ESD rating reduces need for external protection in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7011DBVR | Push-pull output, 650 nA IQ, 1.8–6 V supply, 350 μs propagation delay | Not suitable where level shifting or wired-OR is required; better for ultra-low-IQ but slower response | Select TLV7011DBVR only when push-pull output and sub-μA supply current outweigh speed and interface flexibility needs. |
| MAX9021AXK+T | Open-drain output, 1.1 μA IQ, 1.6–5.5 V supply, 12 μs propagation delay | Faster response but narrower supply range; less robust input overvoltage tolerance (no beyond-rail clamping) | Choose MAX9021AXK+T when <15 μs delay is mandatory and supply stays within 1.6–5.5 V; verify input protection externally if sensing beyond rails. |
Compared with TLV7011DBVR and MAX9021AXK+T, the LMC7225IM5X uniquely balances ultra-low IQ, open-drain flexibility, rail-to-rail input with beyond-rail tolerance, and proven latch-up immunity-making it optimal for rugged, wide-supply, battery-critical designs where interface adaptability matters more than raw speed.
Availability
LMC7225IM5X is available at Aetrix Electronics and suitable for battery voltage monitoring, RC timer circuits, handheld metering systems, and low-power alarm circuits requiring stable component supply across extended production lifecycles.
Supply support for LMC7225IM5X 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
Texas Instruments is a global semiconductor company delivering analog and embedded processing solutions, with leadership in precision analog, low-power design, and automotive-grade reliability.
The LMC7225IM5X belongs to TI's LMC72xx micro-power comparator family, engineered specifically for energy-constrained, single-supply applications such as portable instrumentation, wearables, and remote sensors where minimal quiescent current and rail-to-rail operation are essential.
FAQ
What is the maximum supply voltage for the LMC7225IM5X?
The LMC7225IM5X has an absolute maximum supply voltage (V+ − V−) of 10 V, with recommended operating range from 2 V to 8 V. Exceeding 10 V risks permanent damage. At 8 V, input common-mode range extends to −0.3 V to 8.3 V, and output sink current remains rated up to 30 mA.
Does the LMC7225IM5X have built-in hysteresis?
No, the LMC7225IM5X does not include internal hysteresis. Its high gain (140 dB) makes it susceptible to oscillation near threshold with noisy or slowly varying inputs. External positive feedback (e.g., resistor from OUT to IN+) must be added to implement user-defined hysteresis-typically 1–10 mV-when used in noisy environments.
Can the LMC7225IM5X output drive a 12 V logic interface?
Yes-the LMC7225IM5X open-drain output can interface to 12 V logic when paired with a pull-up resistor connected to 12 V. The output leakage current is ≤1 nA at VOUT = 15 V, and the device tolerates output voltages up to 15 V. Do not short the output to >10 V without current limiting per datasheet caution.
What is the input offset voltage specification for LMC7225IM5X at 85°C?
The LMC7225IM5X specifies input offset voltage (VOS) as 8 mV maximum over the full operating temperature range of −40°C to +85°C. This limit applies across all temperatures and supply voltages (2 V to 8 V); typical VOS remains 6 mV at 25°C but may drift up to ±2 mV over temperature.
Is the LMC7225IM5X pin-compatible with the LMC7215IM5X?
No-though both use the SOT-23-5 package and share identical pinout (IN+, IN−, GND, OUT, V+), the LMC7225IM5X has open-drain output while the LMC7215IM5X has push-pull output. Swapping them requires circuit modification: LMC7225IM5X needs an external pull-up; LMC7215IM5X does not. Functionally, they are not drop-in replacements.
LMC7225IM5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2V ~ 8V, ±1V ~ 4V
- :
- 6mV @ 5V
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- 30mA
- Current - Output (Typ):
- 1µA
- Current - Quiescent (Max):
- 80dB CMRR, 90dB PSRR
- CMRR, PSRR (Typ):
- 29µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
LMC7225IM5X FAQ
1.How can I place an order for LMC7225IM5X through Aetrix?
Please submit a Request for Quotation (RFQ) for LMC7225IM5X 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 LMC7225IM5X reliable?
The price and inventory of LMC7225IM5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMC7225IM5X is usually 5 days.
3.What payment methods are accepted for LMC7225IM5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMC7225IM5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMC7225IM5X?
LMC7225IM5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMC7225IM5X 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 LMC7225IM5X?
For technical support, including LMC7225IM5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMC7225IM5X requirements.
6.How does Aetrix verify that LMC7225IM5X is sourced from the original manufacturer or authorized distributors?
All LMC7225IM5X 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 LMC7225IM5X meets industry standards.
7.What is the process for return or replacement of LMC7225IM5X?
All LMC7225IM5X units undergo pre-shipment inspection (PSI). If there is an issue with LMC7225IM5X, 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 LMC7225IM5X part is unused and in its original packaging.
Return procedure for LMC7225IM5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMC7225IM5X 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
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…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
