Proper Termination of Inputs to the HIP408x Family of Driver ICs ® Technical Brief February 2003 Description TB406 Schematic The HIP408x family of driver ICs includes the HIP4080A, HIP4081A, HIP4082, HIP4083 and HIP4086. The inputs to all of these devices have internal 100µA (typical) pull-ups to VDD except for HEN (HIP4080A), which has an internal 200µA (typical) pull-up to VDD. If left open, the voltage on these inputs may not be sufficiently large to guarantee a logic high ([email protected]°C and 2.7V over temperature). If a logic high is desired, we recommend connecting the inputs to VDD through a resistance no larger than 25k. The inputs may also be connected directly to VDD. +V VDD R<25k INPUT The affected inputs by part type are as follows: HIP408x HIP4080A: HEN, DIS HIP4081A: ALI, BLI, AHI, BHI, DIS HIP4082: ALI, BLI, AHI, BHI, DIS VSS HIP4083: AHI, BHI, CHI, DIS HIP4086: ALI, BLI, CLI, AHI, BHI, CHI, DIS For application assistance on these or any other Intersil power management ICs, please feel free to contact us at the web address shown below. www.intersil.com/tsc All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003. All Rights Reserved All other trademarks mentioned are the property of their respective owners.