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UC3625DW датащи(PDF) 4 Page - Texas Instruments

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номер детали UC3625DW
подробное описание детали  Brushless DC Motor Controller
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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UC1625
UC2625
UC3625
SLUS353C – NOVEMBER 2003 – REVISED JUNE 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply for: TA = 25°C; Pwr VCC = VCC = 12 V; ROSC = 20 kΩ to VREF; COSC = 2 nF;
RTACH = 33 kΩ; CTACH = 10 nF; and all outputs unloaded. TA = TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Overall
Supply current
14.5
30.0
mA
VCC turn-on threshold
Over operating range
8.65
8.95
9.45
V
VCC turn-off threshold
7.75
8.05
8.55
Overvoltage/Coast
OV-COAST inhibit threshold
1.65
1.75
1.85
OV-COAST restart threshold
1.55
1.65
1.75
V
Over operating range
OV-COAST hysteresis
0.05
0.10
0.15
OV-COAST input current
-10
-1
0
μA
Logic Inputs
H1, H2, H3 low threshold
0.8
1.0
1.2
Over operating range
V
H1, H2, H3 high threshold
1.6
1.9
2.0
H1, H2, H3 input current
Over operating range, to 0 V
-400
-250
-120
μA
QUAD SEL, dir thresholds
Over operating range
0.8
1.4
2.0
V
QUAD SEL hysteresis
70
mV
DIR hysteresis
0.6
V
QUAD SEL input current
-30
50
150
μA
DIR input current
-30
-1
30
PWM Amp/Comparator
E/A IN(+), E/A IN(–) input current
To 2.5 V
-5.0
-0.1
5.0
μA
PWM IN input current
To 2.5 V
0
3
30
Error amp input offset
0 V < VCOMMON-MODE < 3 V
-10
10
mV
Error amp voltage gain
70
90
dB
E/A OUT range
0.25
3.50
V
Pull-up current
To 0 V
-16
-10
-5
μA
SSTART
Discharge current
To 2.5 V
0.1
0.4
3.0
mA
Restart threshold
0.1
0.2
0.3
V
Current Amp
ISENSE1 = 0.3 V, ISENSE2 = 0.5 V to
Gain
1.75
1.95
2.15
V/V
0.7 V
Level shift
ISENSE1 = 0.3 V, ISENSE2 = 0.3 V
2.4
2.5
2.65
Peak current threshold
0.14
0.20
0.26
V
ISENSE1 = 0 V, force ISENSE2
Over current threshold
0.26
0.30
0.36
ISENSE1, ISENSE2 input current
-850
-320
0
To 0 V
μA
ISENSE1, ISENSE2 offset current
±2
±12
Range ISENSE1, ISENSE2
-1
2
V
Tachometer/Brake
TACH-OUT high level
4.7
5
5.3
Over operating range, 10 k
Ω to 2.5
V
V
TACH-OUT low level
0.2
On time
170
220
280
μs
On time change with temp
Over operating range
0.1%
RC-BRAKE input current
To 0 V
-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
SPEED-IN threshold
Over operating range
220
257
290
mV
SPEED-IN input current
-30
-5
30
μA
4
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Copyright © 2003–2013, Texas Instruments Incorporated
Product Folder Links: UC1625 UC2625 UC3625


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