TB406

The HIP408x family of driver ICs includes the HIP4080A, HIP4081A, HIP4082, HIP4083 and HIP4086. The inputs to all of these devices have internal 100A (typical) pull-ups to VDD except for HEN (HIP4080A), which has an internal 200A (typical) pull-up to VDD. If left open, the voltage on these inputs may not be sufficiently large to guarantee a logic high (2.5V@25°C and 2.7V over temperature). If a logic high is desired, we recommend connecting the inputs to V_DD through a resistance no larger than 25k. The inputs may also be connected directly to V_DD.
` The affected inputs by part type are as follows:
- HIP4080A: HEN, DIS
- HIP4081A: ALI, BLI, AHI, BHI, DIS
- HIP4082: ALI, BLI, AHI, BHI, DIS
- 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.