NGTB03N60R2DT4G Application Note for Refrigerator

AND9391/D
NGTB03N60R2DT4G
Application Note for
Refrigerator
1. At the beginning
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RC-IGBT is the abbreviation of Reverse
Conducting Insulated Gate Bipolar Transistor,
which is an IGBT that incorporates FWD into
one chip.
Like inverter circuit, the needed IGBT and FWD
are housed in one chip; this enables package
downsizing and thermal balance.
This paper introduces the operation application
of RC-IGBT in DPAK.
APPLICATION NOTE
RC-IGBT: diode is formed due to the formation
of a part of backside with N+(high-concentration
N-layer). Collector (C) is cathode, Emitter (E) is
anode, so it can be functioned as FWD of IGBT.
Surely, as a diode, it is designed high-speed
that ensures trr<65ns and high-speed switching
performance. Furthermore, RC-IGBT adopts
our original FS2 structure; this process is called
RC2-IGBT
2. Cross-section structure of RC-IGBT and IGBT
(general explanation)
Table.1 shows the similarities and differences
between RC-IGBT and IGBT in structure and
operation.
Table.1 Structural comparison between RC-IGBT and IGBT
Chip structure
RC-IGBT
IGBT
For FRD area, a part of backside P+
layer is replaced with N+ layer
The entire backside is formed by P+
layer.
FRD is a separate chip
Circuit symbol
Chip cross-section
(explain with
ordinary structure)
Emitter metal
Emitter metal
P+
P+
P-
P-
N
N
IGBT Area
P+
IGBT Area
N+
IGBT contact
© Semiconductor Components Industries, LLC, 2016
March 2016 - Rev. 1
FRD Area
P+
Diode contact
1
IGBT contact
Publication Order Number:
AND9391/D
AND9391/D
3. High-speed SW performance of RC2-IGBT
Sample waveforms are shown in WP.1 and
WP.2.
WP.1 is tf waveform @5A operation for RC2IGBT. Compared with WP.2 (10A NPT), RC2IGBT realized high speed and tf tailing-less
operation.
FS2 process is by nature developed by ON
Semi to be used for high-speed switching IGBT,
for example, IGBT for full-switching PFC. By
adopting this structure in RC2-IGBT, tf is greatly
improved (faster speed) compared with earliertype (NPT structure) IGBT.
Ic-1A/div
Ic tailing
VCE-100V/div
WP.1 FS2-IGBT Ic=5A tf=31.2ns
WP.2 NPT-IGBT Ic=5A tf=102ns
4. RC2-IGBT products lineup
With compact package, Ic rating ranges from
Ic=4.5A (NGTB03N60R2DT4G) to
Ic=10A (NGTB10N60R2DT4G).
RC2-IGBT features small size by housing
IGBT and FRD into 1chip, therefore ON Semi
provides its lineup with a focus on DPAK
products.
Table.2 RC2-IGBT Lineup
Type No.
NGTB03N60R2DT4G
NGTB05N60R2DT4G
NGTB10N60R2DT4G
NGTB15N60R2FG
Package
Absolute maximum ratings
IC
IC
ICP
@Tc= @Tc= @Tc=
VCES
25°C 100°C 25°C
[V]
[A]
[A]
[A]
DPAK
DPAK
DPAK
TO-220F-3FS
600
9
16
20
24
4.5
8
10
14
*1 IF=Ic(Tc=100C). VR=300V,di/dt=300A/s
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2
12
20
40
60
Electrical
characteristics
/Ta=25°C
VCE(sat)
FRD Electrical
Characteristics /
typ
[V]
VF
typ
[V]
trr
typ
[ns]
1.7(3A)
1.65(5A)
1.7(10A)
1.85(15A)
1.5
1.5
1.5
1.7
65*1
75*1
90*1
95*1
AND9391/D
5. Application Map of RC-IGBT
The application map of NGBT03N60R2DT4G
with DPAK package. (Fig.1)
Best suited for refrigerators and fan motors of a
high operation frequency (15kHz).
Fig.1 Application area of NGTB03N60R2DT4G (D PAK)
Table.2 DC Spec. Comparison
6. Operation in BLDC motor
@Tc=100°C
VCE(sat)
typ[V]
VF
typ[V]
NGTB03N60R2DT4G
4.5
1.7(3A)
1.5(3A)
A IGBT
4.2
1.9(3A)
1.9(3A)
Ic[A]
6-1) DC rating comparison with competitors
Table.2 shows DC rating comparison with
competitor’s IGBT used in refrigerator
compressor.
NGTB03N60R2DT4G has lower VCE(sat)
than A IGBT does, which enables conduction
loss reduction.
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AND9391/D
6-2) Operation comparison in BLDC motor
Tc VS Pout
85
BLDC Motor
Vcc=140V
Rg=47Ω
fc=6.8kHz
Ta=25 C
80
75
Tc[°C]
Fig.2 shows the characteristic when operating
3-phase BLDC motor with circuit composition
like Fig.3 (120° PWM operation, fc=6.8kHz).
Operation temp. of each IGBT mounted on PCB
is measured. Like the above-stated DC rating,
compared with IGBT A, NGTB03N60R2DT4G
with low VCE(sat) showed decreased temp.
Photo.1 shows the condition of the device
mounted on board and the board for operation
review (a part).
70
65
Tc(NGTB03N60R2)[C]
60
Tc(A IGBT)[C]
55
50
45
30
40
50
60 70
Pout[W]
80
90
100
Fig.2 Operation characteristic Tc VS Ic
Photo.1 Board for operation review (a part)
1ch
Motor
drive
controller
High 1ch
Low 1ch
Half bridge
Driver
NCP5304
2ch
Same
Fig.3 Operation Circuit block
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4
3ch
Same
AND9391/D
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