INTERSIL TB406

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
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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