ml4425 Microsemi Corporation, ml4425 Datasheet - Page 4

• Manufacturer Part Number: ml4425
• Description: Sensorless Bldc Motor Controller
• Manufacturer: Microsemi Corporation

ML4425
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
V
Logic Inputs (, SPEED FB, BRAKE) .......... GND - 0.3 to 7V
All Other Inputs and Outputs .. GND -0.3V to V
Output Current (LA, LB, LC, HA, HB, HC) ............ ±50mA
Junction Temperature .............................................. 150ºC
Storage Temperature Range ...................... –65ºC to 150ºC
Lead Temperature (Soldering 10 sec.) ..................... 260ºC
ELECTRICAL CHARACTERISTICS
Unless otherwise specified,V
T
REFERENCE
PWM OSCILLATOR
SPEED CONTROL LOOP
START-UP
VOLTAGE CONTROLLED OSCILLATOR
CURRENT LIMIT
4
SYMBOL
A
DD
V
= Operating Temperature Range (Notes 1, 2)
REF
.......................................................................... 14V
Total Variation
Total Variation
Ramp Peak
Ramp Valley
Ramp Charging Current
SPEED SET Input Voltage Range
SPEED FB Input Voltage Range
SPEED COMP Output Current
SPEED SET Error Amp Transconductance
C
C
C
C
Frequency Range
Frequency vs. SPEED FB
I
One Shot OFF-Time
SENSE
AT
AT
RT
RT
Charging Current
Charging Current
Threshold Voltage
Threshold Voltage
Gain
PARAMETER
DD
= 12V ± 10%, R
DD
SENSE
+ 0.3V
Line, Temp
C
V
R
R
V(I
C
VCO
VCO
T
SPEED SET
IOS
LIMIT
= 1 , C
= 1nF
= 100pF
= 5V, SPEED FB = 6V
= 5V, 0.5V
)
CONDITIONS
= xV, V
2.5V
VCO
Thermal Resistance (
OPERATING CONDITIONS
Temperature Range
V
DD
28-Pin Narrow PDIP ......................................... 48ºC/W
28-Pin SOIC ..................................................... 75ºC/W
32-Pin TQFP ..................................................... 80ºC/W
ML4425CX................................................. 0ºC to 70ºC
ML4425IX ............................................... –40ºC to 85ºC
= 10nF, C
SPEED FB
SPEED FB
......................................................... 10.8V to 13.2V
= yV
C Suffix
C Suffix
C Suffix
IOS
I Suffix
I Suffix
I Suffix
7V
= 100pF, R
JA
)
MIN
0.68
0.68
6.5
0.5
1.4
0.5
1.4
1.5
4.5
±5
0
0
9
9
REF
= 137k ,
1.85
TYP
144
300
3.9
1.7
5.0
6.9
28
?
MAX
V
V
0.98
0.98
±20
7.5
1.1
1.7
1.1
1.7
2.2
5.5
18
20
REF
REF
UNITS
Hz/V
kHz
kHz
µ
V/V
µA
µA
µA
µA
µA
µA
µs
µs
V
V
V
V
V
V
V
W