SCM1105MF
High Voltage 3-Phase Motor Driver
Features and Benefits
▪
Each half-bridge circuit consists of a pre-driver circuit that
is completely independent from the others
▪
Protection against simultaneous high- and low-side turning on
▪
Bootstrap diodes with series resistors for suppressing
inrush current are incorporated
▪
CMOS compatible input (3.3 to 5 V)
▪
Designed to minimize simultaneous current through both
high- and low-side IGBTs by optimizing gate drive resistors
▪
Integrated Fast Recovery Diode (FRD) as freewheeling
diode for each IGBT
▪
UVLO protection with auto restart
▪
Overcurrent protection with off-time period adjustable by
an external capacitor
▪
Fault (FO indicator) signal output at protection activation:
UVLO (low side only), OCP, and STP
▪
Proprietary power DIP package
▪
UL Recognized Component (File No.: E118037)
Description
The SCM1105MF inverter power module (IPM) device
provides a robust, highly-integrated solution for optimally
controlling 3-phase motor power inverter systems and variable
speed control systems used in energy-conserving designs to
drive motors of residential and commercial appliances. These
ICs take 85 to 253 VAC input voltage, and 15 A (continuous)
output current. They can withstand voltages of up to 600 V
(IGBT breakdown voltage).
The SCM1100M series employs a new, small-footprint
proprietary DIP package with exposed thermal pad for enhanced
power dissipation capacity. The IC itself consists of all of the
necessary power elements (six IGBTs), pre-drive ICs (three),
and freewheeling diodes (six), needed to configure the main
circuit of an inverter, as well as a bootstrap circuit (three
bootstrap diodes and three boot resistors) as a high-side drive
power supply. This enables the main circuit of the inverter to
be configured with fewer external components than traditional
designs.
Applications include residential white goods (home appliances)
and commercial appliance motor control, such as:
▪
Air conditioner fan motor
▪
Refrigerator compressor motor
▪
Washing machine main motor
▪
Air conditioner compressor motor
Package: Power DIP
Not to scale.
Thermal pad shown attached.
Functional Block Diagram
HS
VB
HO
Drive
Circuit
VBB
VCC
Input
HIN
LIN
Logic
&
Shoot
Through
Prevention
COM
FO
UV
Detect
Level
Shift
U, V, or W
UV
Detect
O .C .
Protect
Drive
Circuit
LS
HVIC
LO
CFO
Figure 1. Diagram of one of three phases in the device.
38110.060, Rev. 6
SCM1105MF
Selection Guide
Part Number
SCM1105MF
Packing
10 pieces per tube
High Voltage 3-Phase Motor Driver
IGBT Breakdown
Voltage, V
CES
(min)
(V)
600
IGBT Saturation
Voltage, V
CE(sat)
(typ)
(V)
1.75
Output Current
Continuous, I
O
(max)
(A)
15
Pulsed, I
OP
(max)
(A)
30
Absolute Maximum Ratings,
valid at T
A
= 25°C
Characteristic
Supply Voltage
Supply Voltage (Surge)
IGBT Breakdown Voltage
Logic Supply Voltage
Boot-strap Voltage
Output Current, Continuous
Output Current, Pulsed
Input Voltage
FO Terminal Voltage
Maximum Allowable Power Dissipation
Thermal Resistance, Junction-to-Case
Case Operation Temperature
Junction Temperature (IGBT)
Storage Temperature
Isolation Voltage
Symbol
V
DC
V
DC(surge)
V
CES
V
CC
V
BS
I
O
I
OP
V
IN
V
FO
P
D
R
(j-c)Q
R
(j-c)F
T
COP
T
J
T
stg
V
iso
Between exposed thermal pad and each pin; 1 minute, AC
Between FO and COM
T
Case
= 25°C, 1 element operation (IGBT)
T
Case
= 100°C, 1 element operation (IGBT)
1 element operation (IGBT)
1 element operation (FRD)
Remarks
Between VBB and LS1, LS2, and LS3
Between VBB and LS1, LS2, and LS3
V
CC
= 15 V, I
C
= 1 mA, V
IN
= 0 V
Between VCC and COM
Between VB and HS (U,V,W)
T
Case
= 25°C
T
Case
= 100°C
Pulse Width
≤
1 ms
Rating
450
500
600
20
20
15
10.5
30
–0.5 to 7
7
41.7
16.7
3.0
4.0
–20 to 100
150
–40 to 150
2000
Units
V
V
V
V
V
Adc
Adc
A
V
V
W
W
°C/W
°C/W
°C
°C
°C
V
rms
Recommended Operating Conditions
Characteristic
Main Supply Voltage
Logic Supply Voltage
Logic Supply Voltage
Minimum Input Pulse Width
Dead Time
FO Pull-up Resistor
CFO Capacitor
FO Pull-up Voltage
Bootstrap Capacitor
Shunt Resistor
PWM Carrier Frequency
Junction Temperature
Symbol
V
DC
V
CC
V
BS
t
INmin(on)
t
INmin(off)
t
dead
R
FO
C
FO
V
FO
C
BOOT
R
S
f
C
T
J
For I
P
≤
30 A
Remarks
Between VBB and LS
Between VCC and COM
Between VB and HS
On pulse
Off pulse
Min.
–
13.5
13.5
0.5
0.5
1.5
1
1
4.5
10
16.3
–
–
Typ.
300
–
–
–
–
–
–
–
–
–
–
–
–
Max.
400
16.5
16.5
–
–
–
22
10
5.5
220
–
10
125
Units
V
V
V
μs
μs
μs
kΩ
nF
V
μF
mΩ
kHz
°C
All performance characteristics given are typical values for circuit or
system baseline design only and are at the nominal operating voltage and
an ambient temperature, T
A
, of 25°C, unless otherwise stated.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2
SCM1105MF
Typical Application Diagram
8
7
Vcc
CBOOT
6
5
3
VCC
High Voltage 3-Phase Motor Driver
SCM1100M
31
VB
HIN
LIN
4
1
2
16
15
CBOOT
14
13
11
Input
Logic
&
Shoot
Through
Prevention
UV
Detect
Level
Shift
UV
Detect
O.C.
Protect
HO
Drive
Circuit
HS
32
COM
FO
CFO
Drive
Circuit
LO
33
LS
HVIC
1
28
VB
VCC
Controller
HIN
LIN
12
9
10
24
23
CBOOT
22
21
19
VFO
RFO
20
17
18
CN
Input
Logic
&
Shoot
Through
Prevention
UV
Detect
Level
Shift
UV
Detect
O.C.
Protect
HO
Drive
Circuit
HS
29
M
COM
FO
CFO
Drive
Circuit
LO
30
LS
HVIC2
VBB
25
VB
VCC
HIN
LIN
Input
Logic
&
Shoot
Through
Prevention
UV
Detect
Level
Shift
UV
Detect
O.C.
Protect
HO
Drive
Circuit
HS
26
COM
FO
CFO
Drive
Circuit
LO
27
LS
CS
HVIC3
RS
CFO
NOTE:
▪
To use the OCP circuit, an external shunt resistor, RS, is needed. The RS value can be obtained from the formula:
R
S
(Ω) = 0.5 (V) / Overcurrent Detection Set Current (A) – 0.0024 (Ω).
▪
To avoid malfunction, the wiring between the LS and COM pins should be as short as possible.
▪
To prevent surge destruction, put a 0.01 to 1
μF
snubber capacitor, CS, in parallel with the electrolytic capacitor.
▪
To prevent surge destruction, put a 18 to 20 V Zener diode between the VCC and COM pins.
▪
To prevent surge malfunction, put a 0.01 to 0.1
μF
ceramic capacitor between the VCC and COM pins and the VB and HS
pins.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
3
SCM1105MF
High Voltage 3-Phase Motor Driver
Symbol
V
CC
I
CC
I
BS
V
IH
V
IL
V
Ihys
I
IHH
I
ILH
U
VHL
U
VHH
U
VLL
U
VLH
V
FOL
V
FOH
V
TRIP
t
P
t
blank
V
CES
I
CES
V
CE(sat)
V
F
t
rr
I
IB
V
FB
R
B
t
dH(on)
t
rH
Between VCC and COM
V
CC
= 15 V, 3 phases operating
VB – HS = 15 V, one phase operating
V
CC
= 15 V, output on
V
CC
= 15 V, output off
V
CC
= 15 V
V
CC
= 15 V, V
IN
= 5 V
V
CC
= 15 V, V
IN
= 0 V
V
CC
= 15 V
V
CC
= 15 V
V
CC
= 15 V, V
FO
= 5 V, R
FO
= 10 kΩ
V
CC
= 15 V
V
CC
= 15 V, C
FO
= 0.0022
μF
V
CC
= 15 V
V
CC
= 15 V, I
C
= 1 mA, V
IN
= 0 V
V
CC
= 15 V, V
CE
= 600 V, V
IN
= 0 V
V
CC
= 15 V, I
C
= 15 A, V
IN
= 5 V
V
CC
= 15 V, I
F
= 15 A, V
IN
= 0 V
I
F
/ I
RP
= 100 mA/100 mA
V
R
= 600 V
I
F
= 0.15 A
Conditions
Min
13.5
–
–
–
1.0
–
–
–
10.0
10.5
10.5
11.0
–
4.8
0.46
2
–
600
–
–
–
–
–
–
17.6
–
–
V
DC
= 300 V, V
CC
= 15V, I
C
= 15 A, inductive load;
HIN 05 V or 50 V
–
–
–
–
–
V
DC
= 300 V, V
CC
= 15V, I
C
= 15 A, inductive load;
LIN 05 V or 50 V
–
–
–
Input Output Truth Table
Typ
–
5
400
2.0
1.5
0.5
50
–
–
–
–
–
–
–
0.50
–
2
–
–
1.75
1.75
70
5
1.1
22.0
365
80
90
690
200
415
135
115
790
205
Max
16.5
8
800
2.5
–
–
100
2
12.0
12.5
12.5
13.0
0.5
–
0.54
–
–
–
1
2.2
2.2
–
10
1.3
26.4
–
–
–
–
–
–
–
–
–
–
Units
V
mA
μA
V
V
V
μA
μA
V
V
V
V
V
V
V
ms
μs
V
mA
V
V
ns
μA
V
Ω
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ELECTRICAL CHARACTERISTICS, valid at T
A
=25°C, unless otherwise noted
Characteristics
Logic Supply Voltage
Logic Supply Current
Bootstrap Supply Current
Input Voltage
Input Voltage Hysteresis
Input Current
Undervoltage Lock Out (High Side)
Undervoltage Lock Out (Low Side)
FO Terminal Output Voltage
Overcurrent Protection Trip Voltage
Overcurrent Protection Hold Time
Blanking Time
IGBT Breakdown Voltage
IGBT Leakage Current
IGBT Saturation Voltage
Diode Forward Voltage
Diode Recovery Time (Bootstrap)
Diode Leakage Current (Bootstrap)
Diode Forward Voltage (Bootstrap)
Diode Series Resistor (Bootstrap)
High Side Switching Time
t
rrH
t
dH(off)
t
fH
t
dL(on)
t
rL
Low Side Switching Time
t
rrL
t
dL(off)
t
fL
Switching Timing Definitions
V
IN
t
(on)
t
d(on)
V
CE
t
rr
t
r
90%
t
d(off)
t
f
90%
t
(off)
HIN
L
L
H
H
10%
LIN
L
H
L
H
OUT
High Z
L
H
High Z
I
C
10%
High Z = High Impedance
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
4
SCM1105MF
High Voltage 3-Phase Motor Driver
Pin-out Diagram
25
33
Branded Side
24
(Bottom View)
1
Terminal List Table
Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Number
FO1
CFO1
LIN1
COM1
HIN1
VCC1
VB1
HS1
FO2
CFO2
LIN2
COM2
HIN2
VCC2
VB2
HS2
FO3
CFO3
LIN3
COM3
HIN3
VCC3
VB3
HS3
VBB
W
LS3
VBB
V
LS2
VBB
U
LS1
Function
U phase fault output for overcurrent and UVLO detected
Capacitor for U phase overcurrent protection hold time
Signal input for low-side U phase (active high)
Supply ground for U phase IC
Signal input for high-side U phase (active high)
Supply voltage for U phase IC
High-side floating supply voltage for U phase
High-side floating supply ground for U phase
V phase fault output for overcurrent and UVLO detected
Capacitor for V phase overcurrent protection hold time
Signal input for low-side V phase (active high)
Supply ground for V phase IC
Signal input for high-side V phase (active high)
Supply voltage for V phase IC
High-side floating supply voltage for V phase
High-side floating supply ground for V phase
W phase fault output for overcurrent and UVLO detected
Capacitor for W phase overcurrent protection hold time
Signal input for low-side W phase (active high)
Supply ground for W phase IC
Signal input for high-side W phase (active high)
Supply voltage for W phase IC
High-side floating supply voltage for W phase
High-side floating supply ground for W phase
Positive DC bus supply voltage
Output for W phase
Negative DC bus supply ground for W phase
Cut-pin ( positive DC bus supply voltage)
Output for V phase
Negative DC bus supply ground for V phase
Cut-pin ( positive DC bus supply voltage)
Output for U phase
Negative DC bus supply ground for U phase
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
PCB Design
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