SMA6850M Series
High Voltage 3-Phase Motor Drivers
Features and Benefits
▪
▪
▪
▪
▪
▪
▪
▪
▪
Built-in pre-drive IC
MOSFET power element
CMOS compatible input (5 V)
High-side gate driver using bootstrap circuit or floating
power supply
Built-in protection circuit for controlling power supply
voltage drop
Built-in overtemperature detection circuit (TD)
Output of fault signal during operation of protection
circuits
Output current 1.5, 2, and 2.5 A
Small SIP (SMA 24-pin)
Description
The SMA6850M inverter power module (IPM) series 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 230 VAC input voltage, and up to 2.5 A (continuous)
output current. They can withstand voltages of up to 500 V
(MOSFET breakdown voltage).
The SMA6850M power package includes an IC with all of
the necessary power elements (six MOSFETs), pre-driver
ICs (two), and flyback diodes (six), needed to configure the
main circuit of an inverter. This enables the main circuit of
the inverter to be configured with fewer external components
than traditional designs.
Applications include residential white goods (home
applications) and commercial appliance motor control:
• Air conditioner fan
• Small ventilation fan
• Dishwasher pump
Packages: Power SIP
Not to scale
Leadform
2451
Leadform
2452
Functional Block Diagram
VB 1
VB 2
VB3
VCC1
VBB 1
VBB 2
UVLO
HIN1
HIN2
HIN3
COM1
U
V
W1
W2
UVLO
Input
Logic
Low Side
Driver
Input
Logic
UVLO
UVLO
UVLO
High Side
Level Shift Driver
VCC2
VREG
LIN1
LIN2
LIN3
COM2
FO
Thermal
Detect
7.5V
Reg.
LS 3
LS 2
LS1
Figure 1. Driver block diagram
28610.20
SMA6850M
Series
Selection Guide
Part Number
Packing
High Voltage 3-Phase Motor Drivers
MOSFET Breakdown
Voltage, V
DSS
(min)
(V)
250
500
500
Output Current
Continuous, I
O
(max)
(A)
2
1.5
2.5
Pulsed, I
OP
(max)
(A)
4
3
5
SMA6851M
SMA6852M
SMA6853M
18 pieces per tube
18 pieces per tube
18 pieces per tube
Absolute Maximum Ratings,
valid at T
A
= 25°C
Characteristic
MOSFET Breakdown Voltage
Logic Supply Voltage
Bootstrap Voltage
Output Current, Continuous
Symbol
SMA6851M
V
DSS
V
CC
V
BS
I
O
SMA6852M
SMA6853M
Between VCC and COM
Remarks
V
CC
= 15 V, I
D
= 100
μA,
V
IN
= 0 V
Rating
250
500
500
20
20
2
1.5
2.5
4
Unit
V
V
V
V
V
A
A
A
A
A
A
V
W
°C/W
°C/W
°C
°C
°C
Between VB and HS (U,V, and W phases)
SMA6851M
SMA6852M
SMA6853M
SMA6851M
Output Current, Pulsed
Input Voltage
Allowable Power Dissipation
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient)
Case Operating Temperature
Junction Temperature (MOSFET)
Storage Temperature
I
OP
V
IN
P
D
R
θJC
R
θJA
T
COP
T
J
T
stg
SMA6852M
SMA6853M
T
C
= 25°C
PW
≤
100
μs,
duty cycle = 1%
3
5
–0.5 to 7
28
4.46
31.25
–20 to 100
150
–40 to 150
All elements operating
All elements operating
Recommended Operating Conditions
Characteristic
Main Supply Voltage
Logic Supply Voltage
Minimum Input Pulse
Dead Time
Junction Temperature
Symbol
SMA6851M
V
BB
V
CC
T
W
(min)
t
dead
T
J
SMA6852M
SMA6853M
Between VCC and COM
Between VBB and LS
Remarks
Min.
–
–
–
13.5
0.5
1.5
–
Typ.
150
280
280
–
–
–
–
Max.
200
400
400
16.5
–
–
125
Units
V
V
V
V
μs
μs
°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, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
2
SMA6850M
Series
Typical Application Diagram
High Voltage 3-Phase Motor Drivers
1
2
3
SMA6850M
9
10
VB1 VB2 VB3
4
VCC1
HO 1
HS1
24
HVIC
8
7
6
5
HO 2
HS2
12
M
HIN 1
HIN 2
HIN 3
COM1
HO 3
HS3
11
14
23
VCC 2
LO 1
17
MC U
20
19
18
LVIC
LIN1
LIN2
LIN3
LO 2
13
LO 3
16
VREG
15
22
21
FO
COM 2
15 V
NOTE:
▪
All of the input pins are connected to GND with internal pull-down resistors rated at 100 kΩ, however, an external pull-down
resistor may be required to secure stable condition of the inputs if high impedance conditions are applied to them.
▪
The external electrolytic capacitors should be placed as close to the IC as possible, in order to avoid malfunctions from
external noise interference. Put a ceramic capacitor in parallel with the electrolytic capacitor if further reduction of noise
susceptibility is necessary.
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
3
SMA6850M
Series
High Voltage 3-Phase Motor Drivers
ELECTRICAL CHARACTERISTICS, valid at T
A
=25°C, unless otherwise noted
Characteristics
Logic Supply Voltage
Logic Supply Current
Input Voltage
Input Voltage Hysteresis
Input Current
Symbol
V
CC
I
CC
V
IH
V
IL
V
Ihys
I
IH
I
IL
V
UVHL
V
UVHH
Undervoltage Lock Out
V
UVHhys
V
UVLL
V
UVLH
V
UVLhys
FO Terminal Output Voltage
Overtemperature Detection Threshold
Temperature (activation and
deactivation)
Output Voltage for Regulator
Bootstrap Diode Leakage Current
Bootstrap Diode Forward Voltage
Bootstrap Diode Series Resistor
MOSFET Breakdown Voltage
V
FOL
V
FOH
T
DH
T
DL
T
Dhys
V
REG
I
LBD
V
FBD
R
BD
SMA6851M
V
DSS
SMA6852M
SMA6853M
SMA6851M
MOSFET Leakage Current
I
DSS
SMA6852M
SMA6853M
SMA6851M
MOSFET On State Resistance
R
DS(on)
SMA6852M
SMA6853M
SMA6851M
MOSFET Diode Forward Voltage
V
SD
SMA6852M
SMA6853M
SMA6851M
MOSFET Diode Recovery Time
t
rr
SMA6852M
SMA6853M
I
SD
= 1.5 A,
di
/
dt
= 100 A/μs
V
CC
= 15 V, V
DS
= 250 V, V
IN
= 0 V
V
CC
= 15 V, V
DS
= 500 V, V
IN
= 0 V
V
CC
= 15 V, V
DS
= 500 V, V
IN
= 0 V
V
CC
= 15 V, I
D
= 1 A, V
IN
= 5 V
V
CC
= 15 V, I
D
= 1 A, V
IN
= 5 V
V
CC
= 15 V, I
D
= 1.5 A, V
IN
= 5 V
V
CC
= 15 V, I
SD
= 1 A, V
IN
= 0 V
V
CC
= 15 V, I
SD
= 1 A, V
IN
= 0 V
V
CC
= 15 V, I
SD
= 1.5 A, V
IN
= 0 V
V
CC
= 15 V, I
D
= 100
μA,
V
IN
= 0 V
I
REG
= 35 mA, T
C
= –20°C to 100°C
V
R
= 500 V
I
F
= 0.15 A
V
CC
= 15 V, no heatsink
Between VCC and COM
V
CC
= 15 V, I
REG
= 0 A
V
CC
= 15 V, output on
V
CC
= 15 V, output off
V
CC
= 15 V
High side, V
CC
= 15 V, V
IN
= 5 V
Low side, V
CC
= 15 V, V
IN
= 0 V
High side, between VB and U, V, or W
High side, hysteresis
Low side, between VCC and COM
Low side, hysteresis
V
CC
= 15 V
Conditions
Min
13.5
–
–
1.0
–
–
–
9.0
9.5
–
10.0
10.5
–
0
4.0
135
105
–
6.75
–
–
17.6
250
500
500
–
–
–
–
–
–
–
–
–
–
–
–
Typ
15
4
2.0
1.5
0.5
50
–
10.0
10.5
0.5
11.0
11.5
0.5
–
–
150
120
30
7.5
–
1.1
22
–
–
–
–
–
–
1.4
3.6
2.0
1.1
1.0
1.0
50
75
75
Max
16.5
6
2.5
–
–
100
2
11.0
11.5
–
12.0
12.5
–
1.0
5.5
165
135
–
8.25
10
1.3
26.4
–
–
–
100
100
100
1.8
4.0
2.4
1.5
1.5
1.5
–
–
–
Units
V
mA
V
V
V
μA
μA
V
V
V
V
V
V
V
V
°C
°C
°C
V
μA
V
Ω
V
V
V
μA
μA
μA
Ω
Ω
Ω
V
V
V
ns
ns
ns
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
4
SMA6850M
Series
High Voltage 3-Phase Motor Drivers
SMA6851M SWITCHING CHARACTERISTICS, valid at T
A
=25°C, unless otherwise noted
Characteristics
Symbol
t
dH(on)
t
rH
Switching Time, High Side
t
rr
t
dH(off)
t
fH
t
dL(on)
t
rL
Switching Time, Low Side
t
rr
t
dL(off)
t
fL
V
BB
= 150 V, V
CC
= 15 V, I
D
= 2 A, 0 V
≤
V
IN
≤
5 V
V
BB
= 150 V, V
CC
= 15 V, I
D
= 2 A, 0 V
≤
V
IN
≤
5 V
Conditions
Min
–
–
–
–
–
–
–
–
–
–
Typ
450
100
90
350
20
550
110
90
360
20
Max
–
–
–
–
–
–
–
–
–
–
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SMA6852M SWITCHING CHARACTERISTICS, valid at T
A
=25°C, unless otherwise noted
Characteristics
Symbol
t
dH(on)
t
rH
Switching Time, High Side
t
rr
t
dH(off)
t
fH
t
dL(on)
t
rL
Switching Time, Low Side
t
rr
t
dL(off)
t
fL
V
BB
= 300 V, V
CC
= 15 V, I
D
= 1.5 A, 0 V
≤
V
IN
≤
5 V
V
BB
= 300 V, V
CC
= 15 V, I
D
= 1.5 A, 0 V
≤
V
IN
≤
5 V
Conditions
Min
–
–
–
–
–
–
–
–
–
–
Typ
550
100
120
420
30
570
100
120
450
30
Max
–
–
–
–
–
–
–
–
–
–
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SMA6853M SWITCHING CHARACTERISTICS, valid at T
A
=25°C, unless otherwise noted
Characteristics
Symbol
t
dH(on)
t
rH
Switching Time, High Side
t
rr
t
dH(off)
t
fH
t
dL(on)
t
rL
Switching Time, Low Side
t
rr
t
dL(off)
t
fL
V
BB
= 300 V, V
CC
= 15 V, I
D
= 2.5 A, 0 V
≤
V
IN
≤
5 V
V
BB
= 300 V, V
CC
= 15 V, I
D
= 2.5 A, 0 V
≤
V
IN
≤
5 V
Conditions
Min
–
–
–
–
–
–
–
–
–
–
Typ
640
100
150
520
30
650
100
150
580
30
Max
–
–
–
–
–
–
–
–
–
–
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
5
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