規格
| 屬性 | 價值 |
| Supplier | Texas Instruments |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Automotive, AEC-Q100 |
| Part Status | Active |
| Type | General Purpose |
| Number of Elements | 2 |
| Output Type | Open-Drain, Rail-to-Rail |
| Voltage - Supply, Single/Dual (±) | 1.65V ~ 5.5V |
| Voltage - Input Offset (Max) | 2mV @ 5V |
| Current - Input Bias(Max) | 5pA @ 5V |
| Current - Output (Typ) | 100mA @ 5V |
| Current - Quiescent (Max) | 35µA |
| CMRRPSRR(Typ) | 65dB, 80dB PSRR |
| Propagation Delay(Max) | 600ns |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
概述
Description
LM393LVQDRQ1 is TI’s low‑voltage, dual comparator. It contains two independent comparators with open‑collector outputs in an 8‑pin RoHS package (QDRQ1 variant). It operates from 2.7 V to 5.5 V and can sense voltages near ground; inputs common‑mode range is 0 to about Vcc−1.5 V. The outputs are open‑collector and require pull‑up resistors to the supply; the device can sink roughly up to 16 mA. There is no internal hysteresis; add positive feedback if you need noise immunity. Typical uses include threshold detection, window and zero‑cross detectors, level shifting, PWM comparators, and battery monitors. Keep in mind: check the exact datasheet for current limits, propagation delay, input bias currents, and recommended pull‑ups for your supply. In short: a small, low‑voltage, dual comparator ideal for general sensing and thresholding tasks.
Equivalent
LM393LVQDRQ1 is TI’s low-voltage, dual open-collector comparator in a VQFN-8 package. Functionally equivalent devices include:
- LM393 (standard dual comparator, various packages)
- LM2903 (dual comparator, similar specs)
- LMV393 / LM393LV (low-voltage variants)
- Other vendors’ dual open-collector comparators with similar specs
For exact cross-references and packaging, use TI’s Cross Reference tool.
- LM393 (standard dual comparator, various packages)
- LM2903 (dual comparator, similar specs)
- LMV393 / LM393LV (low-voltage variants)
- Other vendors’ dual open-collector comparators with similar specs
For exact cross-references and packaging, use TI’s Cross Reference tool.
Features
Here are the key features of the LM393LVQDRQ1:
- Dual differential-input comparators
- Open-collector outputs (sinking, require pull-up resistors)
- Input common-mode range includes ground
- Wide supply voltage range: 2 V to 36 V (single-supply operation)
- Low quiescent current (low-power operation)
- Suitable for level/detection applications (level shifters, zero-crossing, window detectors)
- Extended temperature range: typically -40°C to 125°C
- 8-pin package (QDRQ1 variant)
Note: Outputs are non-saturated; use pull-ups to your logic level.
- Dual differential-input comparators
- Open-collector outputs (sinking, require pull-up resistors)
- Input common-mode range includes ground
- Wide supply voltage range: 2 V to 36 V (single-supply operation)
- Low quiescent current (low-power operation)
- Suitable for level/detection applications (level shifters, zero-crossing, window detectors)
- Extended temperature range: typically -40°C to 125°C
- 8-pin package (QDRQ1 variant)
Note: Outputs are non-saturated; use pull-ups to your logic level.
Pinout
- Pin count: 8 pins (8-pin package).
- Function: Dual voltage comparator with open-collector outputs (two independent comparators). Each output requires a pull-up resistor; used to compare analog input voltages and produce a digital signal.
- Function: Dual voltage comparator with open-collector outputs (two independent comparators). Each output requires a pull-up resistor; used to compare analog input voltages and produce a digital signal.
Manufacturer
- Manufacturer: Texas Instruments (TI).
- Company type: An American multinational technology company that designs, manufactures, and sells semiconductors and software, specializing in analog, mixed-signal, and embedded processing ICs.
- Company type: An American multinational technology company that designs, manufactures, and sells semiconductors and software, specializing in analog, mixed-signal, and embedded processing ICs.
Application
LM393LVQDRQ1 is a low‑power, dual comparator with open‑collector outputs. Typical applications include:
- Battery/power-supply monitoring (UVLO/OVLO, brown‑out)
- Threshold and level detection (zero‑crossing, AC mains sensing, window/limit detectors)
- Signal conditioning and microcontroller interfacing (with pull‑ups)
- Oscillators, relaxation oscillators, and simple PWM timing
- Sensor interfacing (thermistors, photodetectors, current sensing)
- Protection and fault indication (over/under‑current)
Note: outputs require pull‑up resistors and can be wired for AND/OR logic.
- Battery/power-supply monitoring (UVLO/OVLO, brown‑out)
- Threshold and level detection (zero‑crossing, AC mains sensing, window/limit detectors)
- Signal conditioning and microcontroller interfacing (with pull‑ups)
- Oscillators, relaxation oscillators, and simple PWM timing
- Sensor interfacing (thermistors, photodetectors, current sensing)
- Protection and fault indication (over/under‑current)
Note: outputs require pull‑up resistors and can be wired for AND/OR logic.
Package
LM393LVQDRQ1 is in an 8-pin VSSOP (Very Small Outline Package) package (lead-free/RoHS compliant).
