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ML4428IP Datasheet(PDF) 4 Page - Micro Linear Corporation

No. de pieza ML4428IP
Descripción Electrónicos  Sensorless Smart-Start??BLDC PWM Motor Controller
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Fabricante Electrónico  MICRO-LINEAR [Micro Linear Corporation]
Página de inicio  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4428IP Datasheet(HTML) 4 Page - Micro Linear Corporation

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ML4428
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.
Supply Voltage (pin 14) ............................................. 14V
Output Current (pins 2, 3, 4, 9,10,11) ................... ±50mA
Logic Inputs (pins 12, 25) ................................ –0.3 to 7V
Junction Temperature ............................................ 150°C
Storage Temperature Range ..................... –65°C to 150°C
Lead Temperature (Soldering 10 sec.) .................... 260°C
Thermal Resistance (
qJA)
Plastic DIP ....................................................... 52°C/W
Plastic SOIC ..................................................... 75°C/W
OPERATING CONDITIONS
Temperature Range
Commercial ............................................... 0°C to 70°C
Industrial ................................................ –40°C to 85°C
VCC Voltage ..................................................... 12V ±10%
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, TA = 0°C to 70°C, VCC = 12V, RSNS = 0.3ý, CVCO = 82nF, CIOS = 100pF,
RREF = 120ký, CSNS = 5.6nF, RVCO = 10k, RINIT = 2Meg (Notes 1, 2, and 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Oscillator (VCO)
Frequency vs. VPIN 20
RCVCO = 2V
0°C to 70°C
550
600
750
Hz/V
–40°C to 85°C
520
600
750
Hz/V
Maximum Frequency
RCVCO = 6V
0°C to 70°C
1850
2150
2350
Hz
–40°C to 85°C
1650
2150
2350
Hz
Sampling Amplifier
IRCVCO (Note 4)
State A, VPH2 = VCC/3
80
116
150
µA
State A, VPH2 = VCC/2
–25
0
25
µA
State A, VPH2 = 2VCC/3
–150
–116
–80
µA
Current Limit
ISNS Trip Point
0.45
0.5
0.55
One Shot Off Time
10
13
15
µs
Power Fail Detection
Power Fail Trip Voltage
8.0
9.0
V
Hysteresis
300
500
700
mV
Logic Inputs
VIH
Voltage High
2
V
VIL
Voltage Low
0.8
V
IIH
Current High
VIN = 2.7V
–300
0
µA
IIL
Current Low
VIN = 0.4V
–400
0
µA
Logic Outputs
VOH
Voltage High
IOUT = –0.1mA
3.3
V
VOL
Voltage Low
IOUT = 1mA
0.4
V


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