© Semiconductor Components Industries, LLC, 2017
June, 2018 − Rev. 2
1 Publication Order Number:
NCP51705/D
NCP51705
Single 6 A High-Speed,
Low-Side SiC MOSFET
Driver
The NCP51705 driver is designed to primarily drive SiC MOSFET
transistors. To achieve the lowest possible conduction losses, the
driver is capable to deliver the maximum allowable gate voltage to the
SiC MOSFET device. By providing high peak current during turn−on
and turn−off, switching losses are also minimized. For improved
reliability, dV/dt immunity and even faster turn−off, the NCP51705
can utilize its on−board charge pump to generate a user selectable
negative voltage rail.
For full compatibility and to minimize the complexity of the bias
solution in isolated gate drive applications the NCP51705 also
provides an externally accessible 5 V rail to power the secondary side
of digital or high speed opto isolators.
The NCP51705 offers important protection functions such as
under−voltage lockout monitoring for the bias power and thermal
shutdown based on the junction temperature of the driver circuit.
Features
• High Peak Output Current with Split Output Stages to allow
independent Turn−ON/Turn−OFF Adjustment;
♦ Source Capability: 6 A
♦ Sink Capability: 6 A
• Extended Positive Voltage Rating for Efficient SiC MOSFET
Operation during the Conduction Period
• User−adjustable Built−in Negative Charge Pump for Fast Turn−off
and Robust dV/dt Immunity
• Accessible 5 V Reference / Bias Rail for Digital Oscillator Supply
• Adjustable Under−Voltage Lockout
• Desaturation Function
• Thermal Shutdown Function (TSD)
• Small & Low Parasitic Inductance QFN24 Package
Typical Applications
• Driving SiC MOSFET
• Industrial Inverters, Motor Drivers
• PFC, AC to DC and DC to DC Converters
www.onsemi.com
MARKING
DIAGRAM
Device Package Shipping
†
ORDERING INFORMATION
NCP51705MNTXG QFN24
(Pb−Free)
3000 / Tape & Reel
QFN24 4x4
MN SUFFIX
CASE 485L
†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.
PIN CONNECTIONS
NCP51705
(Top View )
1
2
3
4
7
8
9
10
PGND
PGND
VCH
C+
PGND
VEE
OUTSNK
OUTSRC
UVSET
V5V
SVDD
VDD
11
12
5
6
18
17
16
15
14
13
24
23
22
21
20
19
OUTSRC
PGND
OUTSNK
VEE VDD
SGND
C−
DESAT
VEESET
XEN
IN+
IN−
24
1
Z = Plant Code
X= 1−Digit Year Code
Y= 1−Digit Week Code
TT = 2−Digit Die Run Code
MP = Package Type (QFN)
X = Package Type (Tape & Reel)
ZXYTT
P51705
MPX
