C

VCC

Logic signal

R

LED

Copyright © 2016,

Texas Instruments Incorporated

14

CD4069UB

SCHS054E – NOVEMBER 1998 – REVISED JANUARY 2019

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Product Folder Links: CD4069UB

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Copyright © 1998–2019, Texas Instruments Incorporated

9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

The CD4069UB device has a low input current of 1 µA at 18 V over full package-temperature range and 100 nA

at 18 V, 25°C. This device has a wide operating voltage range from 3 V to 18 V and used in high voltage

applications.

9.2 Typical Application

Figure 20. CD4069UB Application

9.2.1 Design Requirements

The CD4069UB device is the industry's highest logic inverter operating at 18 V under recommended conditions.

The lower drive capabilities makes it suitable for driving light loads like LED and greatly reduces chances of

overshoots and undershoots.

9.2.2 Detailed Design Procedure

The recommended input conditions for Figure 20 includes rise time and fall time specifications (see Δt/ΔV in

Recommended Operating Conditions) and specified high and low levels (see VIH and VIL in Recommended

Operating Conditions). Inputs are not overvoltage tolerant and must be below VCC level because of the presence

of input clamp diodes to VCC.

The recommended output condition for the CD4069UB application includes specific load currents. Load currents

must be limited so as to not exceed the total power (continuous current through VCC or GND) for the device.

These limits are located in the Absolute Maximum Ratings. Outputs must not be pulled above VCC.