TILM2903BIPWR
Overview
The LM2903BIPWR is a dual-channel, general-purpose voltage comparator featuring an open-collector output and a wide supply range from 2V to 36V. This 'B' version provides an upgraded drop-in replacement for the industry-standard LM2903, offering improved specifications such as lower input offset voltage and lower supply current. It is designed to operate reliably across a wide temperature range of -40 deg C to 125 deg C.
Why Choose This Part
It offers a low quiescent current of 600uA and a fast typical response time of 1us, making it efficient for power-sensitive monitoring. The output is highly flexible, supporting 5V tolerant I/O and up to 36V pull-up voltages regardless of the VCC supply level.
Applications
Key Specifications
Getting Started
To implement this part, connect a pull-up resistor to the open-collector output to define the high-level logic voltage. Ensure the differential input voltage does not exceed the maximum rated supply voltage of 38V, and bypass the VCC pin with a 0.1uF ceramic capacitor near the 8-TSSOP package pins.
LM2903 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Output Type | Temp Range | Current - Output (Typ) | Propagation Delay (Max) | Current - Quiescent (Max) | Stock |
|---|---|---|---|---|---|---|---|
| LM2903BIPWR (this part) | TSSOP-8 | Open-Collector, Ra.. | -40degC ~ 125degC | 21mA | 1u | 600uA | 3,910 |
| LM2903N/NOPB | DIP-8 | Open-Collector, Ra.. | -40degC ~ 85degC | 16mA | 700ns | 2.5mA | 9,754 |
| LM2903PWR | TSSOP-8 | Open-Collector, Ra.. | -40degC ~ 125degC | 20mA | — | 2.5mA | 56,812 |
| LM2903DT (STMicroelectronics) | SOIC-8 | Open-Collector, Ra.. | -40degC ~ 125degC | 16mA | — | 2.5mA | 17,955 |
| LM2903DR | SOIC-8 | Open-Collector, Ra.. | -40degC ~ 125degC | 20mA | — | 2.5mA | 120,537 |
| LM2903FVT-E2 (Rohm Semiconductor) | TSSOP-8 | Open-Collector | -40degC ~ 125degC | 16mA | — | 1mA | 7,865 |
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