1
TB406
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Proper Termination of Inputs to the HIP408x
Family of Driver ICs
Description
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
V
DD
except for HEN (HIP4080A), which has an internal
200A (typical) pull-up to V
DD
. If left open, the voltage on
these inputs may not be sufficiently large to guarantee a
logic high (2.5V@25C 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.
www.intersil.com/tsc
Schematic
V
DD
INPUT
R<25k
+V
V
SS
HIP408x
Technical Brief
February 2003
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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.
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