Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Diodes Incorporated |
| Package / Case | Tape & Reel (TR) |
| Series | Automotive, AEC-Q100 |
| Part Status | Active |
| Type | Differential |
| Number of Elements | 2 |
| Voltage - Supply, Single/Dual (±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage - Input Offset (Max) | 2mV @ 5V |
| Current - Input Bias(Max) | 0.25µA @ 5V |
| Current - Output (Typ) | 16mA @ 5V |
| Current - Quiescent (Max) | 1.7mA |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
LM2903AQTH-13 is a dual, low-power voltage comparator in the LM2903 family, with automotive-grade qualification (suffix hints at AEC automotive use) and a specific packaging/reel code (AQTH-13). It provides two independent comparators with open-collector outputs and is intended for single- or dual-supply operation.
Key points:
- Supply range: typically 2–36 V
- Input common-mode: includes ground (0 V); cannot sense up to Vcc
- Output: open-collector (requires external pull-up); each channel can sink current (about 16 mA typical)
- Pinout: 8-pin package (DIP-8/SO-8); check datasheet for exact pin mapping
- Applications: threshold detectors, zero-cross detectors, battery and power-management monitoring, window comparators
Note: The “AQTH-13” designation usually indicates automotive-grade qualification and a specific packaging/reel option. For exact electrical specs, temperature range (often -40 to +125 C for automotive), and pinout, consult the TI LM2903AQTH-13 datasheet.
Key points:
- Supply range: typically 2–36 V
- Input common-mode: includes ground (0 V); cannot sense up to Vcc
- Output: open-collector (requires external pull-up); each channel can sink current (about 16 mA typical)
- Pinout: 8-pin package (DIP-8/SO-8); check datasheet for exact pin mapping
- Applications: threshold detectors, zero-cross detectors, battery and power-management monitoring, window comparators
Note: The “AQTH-13” designation usually indicates automotive-grade qualification and a specific packaging/reel option. For exact electrical specs, temperature range (often -40 to +125 C for automotive), and pinout, consult the TI LM2903AQTH-13 datasheet.
Equivalent
LM2903AQTH-13 is TI’s RoHS dual comparator with open-collector outputs. The closest equivalents are in the LM393 family:
- LM393 (dual comparator, open-collector) from TI, ON Semiconductor, ST, NXP, etc.
- Other LM290x/LM393 variants from different vendors (check package and input common-mode range).
In short: use LM393 as the standard cross-reference; verify pinout and electrical specs for your exact package variant.
- LM393 (dual comparator, open-collector) from TI, ON Semiconductor, ST, NXP, etc.
- Other LM290x/LM393 variants from different vendors (check package and input common-mode range).
In short: use LM393 as the standard cross-reference; verify pinout and electrical specs for your exact package variant.
Features
Concise features of LM2903AQTH-13:
- Dual, independent voltage comparators
- Open-collector outputs (requires pull-up resistors)
- Wide operating supply: 2–36 V
- Input common-mode range includes ground; extends up to VCC−1.5 V
- Output can sink current (typical up to ~16 mA)
- Low power consumption
- Fast response (propagation delay in the microsecond range, depending on conditions)
- Automotive-grade: qualified (AQ) with extended temperature range (-40°C to 125°C)
Note: This device is suitable for single-supply operation and general-purpose threshold/comparison tasks in automotive environments.
- Dual, independent voltage comparators
- Open-collector outputs (requires pull-up resistors)
- Wide operating supply: 2–36 V
- Input common-mode range includes ground; extends up to VCC−1.5 V
- Output can sink current (typical up to ~16 mA)
- Low power consumption
- Fast response (propagation delay in the microsecond range, depending on conditions)
- Automotive-grade: qualified (AQ) with extended temperature range (-40°C to 125°C)
Note: This device is suitable for single-supply operation and general-purpose threshold/comparison tasks in automotive environments.
Pinout
- Pin count: 8 pins (DIP-8/SO-8 package).
- Function: Dual voltage comparator with open-collector outputs. Contains two independent comparators (each with non-inverting and inverting inputs). Outputs sink current only and require external pull-up resistors to a positive supply. Suitable for single-supply operation (ground to Vcc).
- Function: Dual voltage comparator with open-collector outputs. Contains two independent comparators (each with non-inverting and inverting inputs). Outputs sink current only and require external pull-up resistors to a positive supply. Suitable for single-supply operation (ground to Vcc).
Manufacturer
Manufacturer: Texas Instruments (TI).
What kind of company: TI is an American multinational semiconductor company that designs, manufactures, and sells analog and embedded processing integrated circuits. It is one of the world’s largest suppliers of semiconductors, serving automotive, industrial, communications, consumer, and data-processing markets with products like op-amps, comparators (including LM2903), data converters, and microcontrollers.
What kind of company: TI is an American multinational semiconductor company that designs, manufactures, and sells analog and embedded processing integrated circuits. It is one of the world’s largest suppliers of semiconductors, serving automotive, industrial, communications, consumer, and data-processing markets with products like op-amps, comparators (including LM2903), data converters, and microcontrollers.
Application
LM2903AQTH-13 is a dual, general-purpose comparator with open-collector outputs. Common application areas include:
- Power-supply monitoring and undervoltage/overvoltage protection
- Battery and energy-storage monitoring
- Window/dual-threshold detectors and level sensing
- AC mains sensing and zero-cross detection
- Motor control, protection, and PWM/regulation circuits
- Overcurrent/short-circuit protection and crowbar circuits
- Thermostat, temperature guard, and alarm circuits
- Data-acquisition front-ends and microcontroller interfacing (level shifting)
Note: requires pull-up resistors on outputs.
- Power-supply monitoring and undervoltage/overvoltage protection
- Battery and energy-storage monitoring
- Window/dual-threshold detectors and level sensing
- AC mains sensing and zero-cross detection
- Motor control, protection, and PWM/regulation circuits
- Overcurrent/short-circuit protection and crowbar circuits
- Thermostat, temperature guard, and alarm circuits
- Data-acquisition front-ends and microcontroller interfacing (level shifting)
Note: requires pull-up resistors on outputs.
Package
It's an 8‑pin through‑hole DIP package (dual-inline package, DIP-8).
