CD40109BQNSRQ1

Translators, Level Shifters Overview

The CD40109BQNSRQ1 is a quad low-to-high voltage level shifter qualified for automotive applications. It operates with independent power supplies VCC (3V to 18V) and VDD (3V to 18V). The device features four unidirectional logic channels with three-state outputs controlled by separate enable signals. Propagation delay ranges from 70ns to 500ns depending on supply voltages and load capacitance. It supports input signals exceeding both supply rails and allows VCC to exceed VDD, enabling bidirectional shifting modes.

Translators, Level Shifters Feature Summary

• Independent power supply sequence tolerance allowing flexible application of VCC and VDD
• Three-state output capability with individual enable controls for bus isolation
• Input signal tolerance exceeding both VCC and VDD supply rails
• Automotive qualification meeting JESD 78 Class I latch-up performance standards

Translators, Level Shifters Applications

• High-or-low level-shifting with three-state outputs for unidirectional or bidirectional bussing
• Isolation of logic subsystems using separate power supplies from supply sequencing issues
• Up and down level-shifting capability between different voltage domains

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix QNSRQ1 corresponds to the SOP-16 package in tape-and-reel format containing 2000 units per reel. Confirm that the component meets the required -40°C to +125°C operating temperature range for your automotive environment. Ensure compatibility with the NIPDAU lead finish and Level-1 moisture sensitivity rating during assembly processes.

Translators, Level Shifters Selection Notes

Select this component when interfacing low-voltage logic to high-voltage systems requiring independent supply control. The device accommodates scenarios where VCC exceeds VDD, functioning as a high-to-low shifter. Verify that input signals remain within absolute maximum ratings relative to VSS. Consider the propagation delay specifications under your specific load capacitance conditions to ensure timing requirements are met.

Translators, Level Shifters Part Context

This part belongs to the CD40109B-Q1 series, representing the automotive-grade variant of Texas Instruments' CMOS quad low-to-high voltage shifters. It shares functional characteristics with the standard catalog version but includes enhanced reliability testing and qualification for automotive environments. The device integrates four distinct level-shifting circuits within a single 16-pin small-outline package.

Translators, Level Shifters Replacement Considerations

The catalog version CD40109B serves as a non-automotive alternative. Verify if automotive qualification is strictly required for your application before substituting. Both parts share identical electrical characteristics and pinouts, differing primarily in manufacturing process controls and reliability certifications.