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Электронный компонент: OM9371SP

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25 Amp. Push-Pull 3-Phase Brushless
DC Motor Controller/Driver Module
in a Power Flatpack
8 10 R2
Supersedes 6 11 R1
FULL-FEATURED POWER MODULE FOR DIRECT DRIVE
OF 3-PHASE BRUSHLESS DC MOTORS
FEATURES
Fully integrated 3-Phase Brushless DC Motor Control Subsystem
includes power stage, non-isolated driver stage, and controller stage
MOSFET Output Stage
25A Average Phase Current with 48V Maximum Bus Voltage
Internal Precision Current Sense Resistor (6W max. dissipation)
Speed and Direction Control of Motor
Brake Input for Dynamic Braking of Motor
Overvoltage/Coast Input for Shutdown of All Power Switches
Soft Start for Safe Motor Starting
Unique Hermetic or Plastic Ring Frame Power Flatpacks
Hermetic (3.10" x 2.10" x 0.385")
Plastic Ring Frame (4.13" x 2.00" x 0.49")
APPLICATIONS
Fans and Pumps
Hoists
Actuator Systems
DESCRIPTION
The OM9371 is one of a series of versatile, integrated three-phase brushless DC motor
controller/driver subsystems housed in a 43 pin power flatpack. The OM9371 is best used as a two
quadrant speed controller for controlling/driving fans, pumps, and motors in applications which require
small size. Many integral control features provide the user much flexibility in adapting the OM9371 to
specific system requirements.
The small size of the complete subsystem is ideal for aerospace, military, and high-end industrial
applications. Two package types provide a broad range of cost and screening options to fit any
application.
OM9371
205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246
Visit Our Web Site at www.omnirel.com
COMMUTATION TRUTH TABLE
This table shows the Phase Output state versus
the state of the Hall-Effect and Direction Inputs.
Please note that the OM9371 Hall-Effect Inputs
are Grey-encoded; that is, only one input is
allowed to change from one input state to
another at a time.
The commutation coding shown reflects Hall-
Effect sensors that are spaced at 120
mechanical increments. Also, internal
protection logic disables all three Phase
Outputs when the Hall-Effect Inputs are set to
an illegal condition (i.e. all logic low or all logic
high).
DIGITAL INPUTS
PHASE OUTPUTS
Dir
H1
H2
H3
A
B
C
1
0
0
1
Hi-Z
Sink
Source
1
0
1
1
Sink
Hi-Z
Source
1
0
1
0
Sink
Source
Hi-Z
1
1
1
0
Hi-Z
Source
Sink
1
1
0
0
Source
Hi-Z
Sink
1
1
0
1
Source
Sink
Hi-Z
0
1
0
1
Sink
Source
Hi-Z
0
1
0
0
Sink
Hi-Z
Source
0
1
1
0
Hi-Z
Sink
Source
0
0
1
0
Source
Sink
Hi-Z
0
0
1
1
Source
Hi-Z
Sink
0
0
0
1
Hi-Z
Source
Sink
X
0
0
0
Hi-Z
Hi-Z
Hi-Z
X
1
1
1
Hi-Z
Hi-Z
Hi-Z
2.1 - 2
SIMPLIFIED BLOCK DIAGRAM
OM9371
2.1 - 3
OM9371
ABSOLUTE MAXIMUM RATINGS
Motor Supply Voltage, V
m
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Vdc
Peak Motor Supply Voltage V
m pK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Vdc
Average Phase Output Current, I
o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Amperes DC*
Peak Phase Output Current, I
om
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Amperes Peak**
Control Supply Voltage, V
cc
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+
18 V
Logic Input Voltage
(Note 1
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to +8 V
Reference Source Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 mAdc
Error Amplifier Input Voltage Range, (EA1+/EA1-) . . . . . . . . . . . . . . . . . . . . -0.3 Vdc to 10 Vdc
Error Amplifier Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 mAdc
Spare Amplifier Input Voltage (EA2+/EA2-). . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 Vdc to 10 Vdc
Spare Amplifier Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 mAdc
Current Sense Amplifier Input Voltage (ISH/ISL) . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to +6 Vdc
Current Sense Amplifier Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mAdc
Tachometer Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mAdc
PWM Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 Vdc to +6 Vdc
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to +150 C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 C to +150 C
Power Switch Junction-to-Case Thermal Resistance, R
jc
. . . . . . . . . . . . . . . . . . . . . . 0.55C/W
Package Isolation Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Vrms
Lead Soldering Temperature . . . . . . . . . . . . . 300C, 10 seconds maximum, 0.125" from case
* Tcase = 25 C
** Tcase = 25 C, Maximum pulse width = 10mSec
RECOMMENDED OPERATING CONDITIONS
(Tcase = 25 C)
Motor Power Supply Voltage, V
m
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + 2 8 Vdc
Average Phase Output Current, I
O
With Internal Current Sense Resistor
(Note 2)
Each Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 A
Control Supply Voltage, V
cc
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Vdc 10%
Logic Low Input Voltage, V
il
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 Vdc (max)
Logic High Input Voltage, V
ih
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 Vdc (min)
Note 1: Logic Inputs: Direction, Hall Inputs (H1...H3) Overvoltage - Coast, Speed, and Quad Select.
Note 2: The internal 5m
current sense resistor is limited to 6 Wdc power dissipation. Other values are available.
Please contact the factory for more information.
PARAMETER
SYMBOL
CONDITIONS (NOTE 1)
MIN.
TYP.
MAX.
UNITS
Power Output Section
Zero Gate Voltage Drain Current
Idss
Vds = 60Vdc
250
uA
Vgs = 0V
Drain-to-Source On-Resistance Rds(on)
Id =37.5 A
0.016
Ohms
Vgs = 10V (Note 4)
Gate Body Leakage Current
Igssr
Vgs = 20 Vdc, Vds = 0V
100
nA
Diode Forward Voltage
Vf
Is = 37.5 A
0.9
V
Diode Reverse Recovery Time
trr
Is = 75A, di/dt = -100A/usec,
56
nSec
Vgs = 0V
Control Section
Control Supply Current
Icc
Vcc over operating range
100
mA
Control Turn-On Threshold
Vcc(+)
Tc over operating range
9.45
V
Driver Turn-On Threshold
Vcc(+)
Tc over operating range
13.0
V
Reference Section
Output Voltage
Vref
4.9
5.0
5.1
V
Output Voltage
Vref
Tc over operating range
4.7
5.0
5.3
V
Output Current
Io
---
---
30
mA
Load Regulation
Iload = 0mA to -20mA
-40
-5
mV
Short Circuit Current
Isc
Tc over operating range
50
100
150
mA
Error Amplifier / Spare Amplifier Sections
EA1 / EA2 Input Offset Current
Ios
V(pin 2) = V(pin 4) = 0V
-30
-3
0
nA
V(pin 3) = V(pin 6) = 0V
EA1 / EA2 Input Bias Current
Iin
V(pin 2) = V(pin 4) = 0V
-50
-45
0
nA
V(pin 3) = V(pin 6) = 0V
Input Offset Voltage
Vos
0V < Vcommon-mode < 3V
7
mV
Amplifier Output Voltage Range
--
0
6
V
PWM Comparator Section
PWM Input Current
Iin
V(pin 9) = 2.5V
0
3.0
30
uA
Current-Sense Amplifier Section
ISH / ISL Input Current
Iin
V(pin 12) = V(pin 13) = 0V
-850
-320
0
uA
Input Offset Current
Ios
V(pin 12) = V(pin 13) = 0V
+/-2
+/-12
uA
Peak Current Threshold Voltage
Vpk
V(pin 12) = 0V, V(pin 13)
0.14
0.20
0.26
V
Varied to Threshold
Over Current Threshold Voltage
Voc
V(pin 12) = 0V, V(pin 13)
0.26
0.30
0.36
V
Varied to Threshold
ISH / ISL Input Voltage Range
--
(Note 2)
-1
2
V
Amplifier Voltage Gain
Av
V(pin 12) = 0.3V, V(pin 13)
1.75
1.95
2.15
V/V
= 0.5V to 0.7V
Amplifier Level Shift
--
V(pin 12) = V(pin13) = 0.3V
2.4
2.5
2.65
V
Logic Input Section
H1, H2, H3 Low Voltage Threshold
Vil
Tc over operating range
0.8
1.0
1.2
V
H1, H2, H3 High Voltage Threshold
Vih
Tc over operating range
1.6
1.9
2.0
V
H1, H2, H3 Input Current
Iin
Tc over operating range,
-400
-250
-120
uA
V(pin 20, 21 or 22) = 0Vdc
Quad Select / Direction
Threshold Voltage
Vth
Tc over operating range
0.8
1.4
2.0
V
Quad Select Voltage Hysteresis
Vh
70
mV
Direction Voltage Hysteresis
Vh
0.6
V
Quad Select Input Current
Iin
-30
50
150
uA
Direction Input Current
Iin
-30
-1
30
uA
Overvoltage / Coast Input Section
Overvoltage / Coast Inhibit
Threshold Voltage
Vth
Tc over operating range
1.65
1.75
1.85
V
Overvoltage / Coast Restart
Threshold Voltage
Vth
Tc over operating range
1.55
1.65
1.75
V
Overvoltage / Coast Hysteresis Voltage Vh
0.05
0.10
0.15
V
Overvoltage / Coast Input Current
Iin
-10
-1
0
uA
2.1 - 4
OM9371
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Conditions (Note 1)
MIN.
TYP.
MAX.
Units
Soft-Start Section
Soft-Start Pull-Up Current
Ip
V(pin) 18) = 0V
-16
-10
-5
uA
Soft-Start Discharge Current
Id
V(pin 18) = 2.5V
0.1
0.4
3.0
mA
Soft-Start Reset Threshold Voltage
Vth
0.1
0.2
0.3
V
Tachometer/Brake Section
Tachometer Output High Level
Voh
Tc o
ver operating range
4.7
5.0
5.3
V
(Pin 15) 10k
to 2.5 V
Tachometer Output Low Level
Vol
Tc o
ver operating range
(Pin 15) 10k
to 2.5 V
0.2
V
Tachometer On-Time
ton
85
100
140
us
Tachometer On-Time Variation
--
Tc o
ver operating range
0.1
%
Brake/Tach Timing Input Current
Iin
V (pin 16) = 0V
-4.0
-1.9
mA
Brake/Tach Timing
Threshold Voltage
Vth
Tc o
ver operating range
0.8
1.0
1.2
V
Brake/Tach Timing
Voltage Hysteresis
Vh
0.09
V
Speed Input Threshold Voltage
Vth
Tc o
ver operating range
220
257
290
mV
Speed Input Current
Iin
-30
-5
30
uA
Oscillator Section
Oscillator Frequency
fo
Measured at pin 10
13.5
14.8
20.0
kHz
SPECIFICATION NOTES:
1. All parameters specified for Ta = 25
C, Vcc = 15Vdc, Rosc = 75K
(to Vref), Cosc = 1800 pF, and all Phase Outputs unloaded (Ta ~ Tj). All negative currents shown
are sourced by (flow from) the pin under test.
2. Either ISH or ISL may be driven over the range shown.
3. Bold parameters tested at -55
C, 25
C, 125
C for SFB.
4. Pulse Test: Pulse Width < 300
Sec, Duty Cycle < 2%.
PIN#
NAME
PIN#
NAME
1
VCC
23
Speed Input
2
EA1 "-" Input
24
Direction Input
3
EA2 "+" Input
25
CSH
4
EA1 "+" Input
26
CSL
5
+5V Reference Output
27
Motor Return
6
EA2 "-" Input
28
Motor Return
7
EA2 Output
29
Source C
8
EA1 Output
30
(No Connection)
9
PWM Input
31
Phase C Output
10
Oscillator Timing Input
32
Phase C Output
11
Isense
33
Vmotor
12
ISH
34
Source B
13
ISL
35
Source B
14
Quad Select Input
36
Phase B Output
15
Tachometer Output
37
Phase B Output
16
Brake/Tach Timing Input
38
Vmotor
17
Overvoltage/Coast Input
39
Source A
18
Soft-Start Input
40
Source A
19
Ground
41
Phase A Output
20
H3 Input
42
Phase A Output
21
H2 Input
43
Vmotor
22
H1 Input
(Case)
(No Connection)
2.1 - 5
OM9371
PINOUT