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UC1625L Scheda tecnica(PDF) 3 Page - Texas Instruments

Il numero della parte UC1625L
Spiegazioni elettronici  Brushless DC Motor Controller
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UC1625L Scheda tecnica(HTML) 3 Page - Texas Instruments

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UC1625
UC2625
UC3625
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for: TA = 25
°C; Pwr VCC = VCC = 12V;
ROSC = 20k to VREF; COSC = 2nF; RTACH = 33k; CTACH = 10nF; and all outputs unloaded. TA = TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PWM Amp/Comparator (cont.)
E/A Out Range
0.25
3.50
V
SSTART Pull-up Current
To 0V
–16
–10
–5
µA
SSTART Discharge Current
To 2.5V
0.1
0.4
3.0
mA
SSTART Restart Threshold
0.1
0.2
0.3
V
Current Amp
Gain
ISENSE1 = .3V, ISENSE2 = .5V to .7V
1.75
1.95
2.15
V/V
Level Shift
ISENSE1 = .3V, ISENSE2 = .3V
2.4
2.5
2.65
V
Peak Current Threshold
ISENSE1 = 0V, Force ISENSE2
0.14
0.20
0.26
V
Over Current Threshold
ISENSE1 = 0V, Force ISENSE2
0.26
0.30
0.36
V
ISENSE1, ISENSE2 Input Current
To 0V
–850
–320
0
µA
ISENSE1, ISENSE2 Offset Current
To 0V
±2
±12
µA
Range ISENSE1, ISENSE2
–1
2
V
Tachometer/Brake
Tach-Out High Level
Over Operating Range, 10k to 2.5V
4.7
5
5.3
V
Tach-Out Low Level
Over Operating Range, 10k to 2.5V
0.2
V
On Time
170
220
280
µs
On Time Change With Temp
Over Operating Range
0.1
%
RC-Brake Input Current
To 0V
–4.0
–1.9
mA
Threshold to Brake, RC-Brake
Over Operating Range
0.8
1.0
1.2
V
Brake Hysteresis, RC-Brake
0.09
V
Speed-In Threshold
Over Operating Range
220
257
290
mV
Speed-In Input Current
–30
–5
30
µA
Low-Side Drivers
Voh, –1mA, Down From VCC
Over Operating Range
1.60
2.1
V Voh, –50mA, Down From VCC
Over Operating Range
1.75
2.2
V
Vol, 1mA
Over Operating Range
0.05
0.4
V
Vol, 50mA
Over Operating Range
0.36
0.8
V
Rise/Fall Time
10% to 90% Slew Time, into 1nF
50
ns
High-Side Drivers
Vol, 1mA
Over Operating Range
0.1
0.4
V
Vol, 50mA
Over Operating Range
1.0
1.8
V
Leakage Current
Output Voltage = 50V
25
µA
Fall Time
10% to 90% Slew Time, 50mA Load
50
ns
Oscillator
Frequency
40
50
60
kHz
Frequency
Over Operating Range
35
65
kHz
Reference
Output Voltage
4.9
5.0
5.1
V
Output Voltage
Over Operating Range
4.7
5.0
5.3
V
Load Regulation
0mA to –20mA Load
–40
–5
mV
Line Regulation
10V to 18V VCC
–10
–1
10
mV
Short Circuit Current
Over Operating Range
50
100
150
mA


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