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LM2903L-Q1

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Automotive dual comparator with open-drain output and self latch

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LM2903L-Q1

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Number of channels 2 Output type Open-collector, Open-drain Propagation delay time (µs) 0.3 Vs (max) (V) 36 Vs (min) (V) 2.7 Rating Automotive Features Fail-safe, Latch Iq per channel (typ) (mA) 0.25 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail In to V- Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 50 VICR (max) (V) 34 VICR (min) (V) 0 TI functional safety category Functional Safety-Capable
Number of channels 2 Output type Open-collector, Open-drain Propagation delay time (µs) 0.3 Vs (max) (V) 36 Vs (min) (V) 2.7 Rating Automotive Features Fail-safe, Latch Iq per channel (typ) (mA) 0.25 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail In to V- Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 50 VICR (max) (V) 34 VICR (min) (V) 0 TI functional safety category Functional Safety-Capable
X2QFN (RUG) 10 3 mm² (1.5 mm × 2 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Output Latches on High to Low Output Transition
  • Level-triggered clear
  • Transparent Mode
  • Independent latches per channel
  • 2.7V to 36V supply range
  • Offset Voltage: 2.5mV max at 25°C
  • Fault-tolerant inputs
  • 300ns typical propagation delay
  • Low quiescent current: 350µA per channel
  • Open-drain outputs
  • CLR input compatable down to 1.2V logic
  • Functional Safety-Capable
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Output Latches on High to Low Output Transition
  • Level-triggered clear
  • Transparent Mode
  • Independent latches per channel
  • 2.7V to 36V supply range
  • Offset Voltage: 2.5mV max at 25°C
  • Fault-tolerant inputs
  • 300ns typical propagation delay
  • Low quiescent current: 350µA per channel
  • Open-drain outputs
  • CLR input compatable down to 1.2V logic
  • Functional Safety-Capable

The TL331L-Q1 (single) and LM2903L-Q1 (dual) are high voltage self-latching comparators with a open-collector output. The family also offers low input offset voltage and fault-tolerant inputs. These devices have an excellent speed-to-power combination with a propagation delay of 300ns with a quiescent supply current of only 300µA per channel.

The unique feature of the family is the output latching capability. The output latches upon the first high-to-low threshold crossing, allowing capture of an event or error condition without the full attention of a system controller. This allows events to be captured at start up while the system controller is still initializing or busy with other tasks. When the Latch input is held low, the "Transparent" mode is entered and the output continues to reflect the input conditions (latching disabled).

These comparators also feature fault-tolerant inputs that can go up to 36V without damage with no output phase inversion. This makes this family of comparators designed for precision voltage monitoring in harsh, noisy environments.

The open-drain outputs can be pulled-up below or beyond the supply voltage for OR’ing multiple outputs or level translation.

The family is specified for the Automotive temperature range of -40°C to +125°C and are available in standard leaded and leadless packages.

The TL331L-Q1 (single) and LM2903L-Q1 (dual) are high voltage self-latching comparators with a open-collector output. The family also offers low input offset voltage and fault-tolerant inputs. These devices have an excellent speed-to-power combination with a propagation delay of 300ns with a quiescent supply current of only 300µA per channel.

The unique feature of the family is the output latching capability. The output latches upon the first high-to-low threshold crossing, allowing capture of an event or error condition without the full attention of a system controller. This allows events to be captured at start up while the system controller is still initializing or busy with other tasks. When the Latch input is held low, the "Transparent" mode is entered and the output continues to reflect the input conditions (latching disabled).

These comparators also feature fault-tolerant inputs that can go up to 36V without damage with no output phase inversion. This makes this family of comparators designed for precision voltage monitoring in harsh, noisy environments.

The open-drain outputs can be pulled-up below or beyond the supply voltage for OR’ing multiple outputs or level translation.

The family is specified for the Automotive temperature range of -40°C to +125°C and are available in standard leaded and leadless packages.
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* 데이터 시트 TL331L-Q1 and LM2903L-Q1 Automotive Open-Drain High Voltage Self-Latching Comparators datasheet PDF | HTML 2026. 7. 14

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