LM339PWG4

Overview

The LM339PWG4 is a quad differential comparator manufactured by Texas Instruments, housed in a TSSOP-14 surface-mount package. It operates on a single supply voltage ranging from 2 V to 36 V or dual supplies of ±1 V to ±18 V. The device features an open-collector output type with a response time of 1.3 µs and an operating supply current of 500 µA. Each channel provides an output current capability of 6 mA. Key electrical parameters include an input offset voltage (Vos) of 5 mV and an input bias current (Ib) of 250 nA. The component functions within a temperature range of 0°C to +70°C.

Feature Summary

• Integrates four independent differential comparators into a single low-power package for space-constrained designs.
• Features open-collector outputs that facilitate wired-AND connections and compatibility with various logic families.
• Operates effectively across a wide single-supply voltage range, eliminating the need for dual supplies in many applications.

Applications

• Over-voltage and under-voltage detection circuits
• Temperature sensing and control systems
• Level shifting between different voltage domains

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per Texas Instruments documentation. Confirm the TSSOP-14 package dimensions match your PCB footprint requirements. Ensure the operating temperature range of 0°C to +70°C meets your environmental specifications. Cross-reference the datasheet revision to confirm pinout consistency with existing designs.

Selection Notes

Select this component when multiple independent comparisons are required in a compact surface-mount form factor. The open-collector output requires external pull-up resistors, which must be accounted for in the circuit design. Consider the 1.3 µs propagation delay if high-speed switching is critical. Verify that the 6 mA sink current capability is sufficient for the intended load connected to the pull-up resistor.

Part Context

The LM339 series represents a family of low-power quad comparators widely used in industrial and consumer electronics. The 'G4' suffix typically denotes a lead-free, RoHS-compliant version of the standard LM339 part. This variant maintains the same electrical characteristics as the non-green version while adhering to environmental regulations. It serves as a direct replacement for older LM339 parts in designs requiring updated material compliance.

Replacement Considerations

• LM339PW
• LM339DR