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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR TSOT23-8
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：3V ~ 36V, ±1.5V ~ 18V
- Voltage - Input Offset (Max)：2.5mV @ 36V
- Current - Input Bias (Max)：0.025µA @ 5V
- Current - Output (Typ)：21mA @ 5V
- Current - Quiescent (Max)：600µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：1µs (Typ)
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Mounting Type：Surface Mount
- Supplier Device Package：TSOT-23-8
- Grade：-
- Qualification：-
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Overview
The LM2903BIDDFR is an automotive-grade dual differential voltage comparator from Texas Instruments, part of the LM2903B series. It operates on a single supply voltage ranging from 2V to 36V. The device features two independent comparators with open-collector outputs compatible with TTL, MOS, and CMOS logic. Key electrical characteristics include a maximum input offset voltage of ±4mV over temperature, low input bias current (typical 3.5nA), and a typical response time of 1µsec. It supports an extended operating temperature range from -40°C to +125°C and offers improved ESD protection rated at 2kV HBM.
Feature Summary
- Next-generation B-version design offering lower offset voltage, higher supply voltage capability, and faster response times compared to standard versions.
- Integrated dedicated ESD clamps providing enhanced input ruggedness and 2kV Human Body Model protection.
- Drop-in replacement for legacy LM293, LM393, and LM2903 devices in both 'A' and 'V' grades.
Applications
- Vacuum robot systems
- Single phase UPS units
- Server power supply designs
- Cordless power tools
- Motor drives
Procurement Notes
Verify the specific package type and tape-and-reel configuration corresponding to the DDF suffix during procurement. Confirm that the automotive grade designation aligns with project reliability requirements. Ensure sourcing channels provide valid traceability documentation for the component batch.
Selection Notes
Select this component when an automotive-rated dual comparator is required with wide supply voltage tolerance. It is suitable for applications needing low input bias current and high common-mode input range including ground. Consider its drop-in compatibility if upgrading existing designs based on older LM2903 variants.
Part Context
This device belongs to the LMx93/LM2903 family of dual comparators manufactured by Texas Instruments. The LM2903B series represents the industry-standard evolution, designed to replace previous generations while maintaining pin compatibility. It is specifically engineered for robust performance in demanding industrial and automotive environments.
Replacement Considerations
LM2903B can directly replace LM293, LM393, and LM2903 devices, including A and V grades.
