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NCP51530 Datasheet(PDF) 23 Page - ON Semiconductor

Part No. NCP51530
Description  High Frequency High and Low Side Driver
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP51530 Datasheet(HTML) 23 Page - ON Semiconductor

 
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NCP51530
www.onsemi.com
23
LAYOUT RECOMMENDATIONS
NCP51530 is a high speed and high current high side and
low side driver. To avoid any device malfunction during
device operation, it is very important that there is very low
parasitic inductance in the current switching path. It is very
important that the best layout practices are followed for the
PCB layout of the NCP51530. An example layout is shown
in the figure below. Some of the layout rules to be followed
are listed below.
Keep the low side drive path LO−Q1−GND as small as
possible. This reduces the parasitic inductance in the
path and hence eliminates ringing on the gate terminal
of the low side MOSFET Q1.
Keep the high side drive loop HO−Q2−HB as small as
possible. This reduces the parasitic inductance in the
path and hence eliminates ringing on the gate terminal
of the low side MOSFET Q1.
Keep CVCC as near to the VCC pin as possible and the
VCC−CVCC−GND loop as small as possible.
Keep CVB as near to VB pin as possible and
VB−CVB−HB loop as small as possible.
Keep the HB−GND−Q1 loop as small as possible. This
loop has the potential to produce a negative voltage
spike on the HB pin. This negative voltage spike can
cause damage to the driver. This negative spike can
increase the boot capacitor voltage above the maximum
rating and hence cause damage to the driver.
Figure 35. Example Layout
ORDERING INFORMATION17
Device
Propagation Delay
(ns)
Input filter
Package
Shipping
NCP51530ADR2G
60
Yes
SOIC−8
(Pb−Free)
2500 / Tape & Reel
NCP51530BDR2G
25
No
SOIC−8
(Pb−Free)
2500 / Tape & Reel
NCP51530AMNTWG
60
Yes
DFN10 4x4
(Pb−Free)
4000 / Tape & Reel
NCP51530BMNTWG
25
No
DFN10 4x4
(Pb−Free)
4000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.


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