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UC1824 bảng dữ liệu(PDF) 3 Page - Texas Instruments

tên linh kiện UC1824
Giải thích chi tiết về linh kiện  High Speed PWM Controller
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UC1824 bảng dữ liệu(HTML) 3 Page - Texas Instruments

  UC1824 Datasheet HTML 1Page - Texas Instruments UC1824 Datasheet HTML 2Page - Texas Instruments UC1824 Datasheet HTML 3Page - Texas Instruments UC1824 Datasheet HTML 4Page - Texas Instruments UC1824 Datasheet HTML 5Page - Texas Instruments UC1824 Datasheet HTML 6Page - Texas Instruments UC1824 Datasheet HTML 7Page - Texas Instruments UC1824 Datasheet HTML 8Page - Texas Instruments  
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UC1824
UC3824
PARAMETERS
TEST CONDITIONS
UC2824
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Oscillator Section (cont.)
Clock Out High
3.9
4.5
3.9
4.5
V
Clock Out Low
2.3
2.9
2.3
2.9
V
Ramp Peak*
2.6
2.8
3.0
2.6
2.8
3.0
V
Ramp Valley*
0.7
1.0
1.25
0.7
1.0
1.25
V
Ramp Valley to Peak*
1.6
1.8
2.0
1.6
1.8
2.0
V
Error Amplifier Section
Input Offset Voltage
10
15
mV
Input Bias Current
0.6
3
0.6
3
µA
Input Offset Current
0.1
1
0.1
1
µA
Open Loop Gain
1V < VO < 4V
60
95
60
95
dB
CMRR
1.5V < VCM < 5.5V
75
95
75
95
dB
PSRR
10V < VCC < 30V
85
110
85
110
dB
Output Sink Current
VPIN 3 = 1V
12.5
12.5
mA
Output Source Current
VPIN 3 = 4V
-0.5
-1.3
-0.5
-1.3
mA
Output High Voltage
IPIN 3 = -0.5mA
4.0
4.7
5.0
4.0
4.7
5.0
V
Output Low Voltage
IPIN 3 = 1mA
0
0 .5
1.0
0
0.5
1.0
V
Unity Gain Bandwidth*
35.5
35.5
MHz
Slew Rate*
612
6
12
V/
µs
PWM Comparator Section
Pin 7 Bias Current
VPIN 7 = 0V
-1
-5
-1
-5
µA
Duty Cycle Range
0
80
0
85
%
Pin 3 Zero DC Threshold
VPIN 7 = 0V
1.1
1.25
1.1
1.25
V
Delay to Output*
50
80
50
80
ns
Soft-Start Section
Charge Current
VPIN 8 = 0.5V
3
9
20
3
9
20
µA
Discharge Current
VPIN 8 = 1V
1
1
mA
Current Limit / Shutdown Section
Pin 9 Bias Current
0 < VPIN 9 < 4V
15
10
µA
Current Limit Threshold
0.9
1.0
1.1
0.9
1.0
1.1
V
Shutdown Threshold
1.25
1.40
1.55
1.25
1.40
1.55
V
Delay to Output
50
80
50
80
ns
Output Section
Output Low Level
IOUT = 20mA
0.25
0.40
0.25
0.40
V
IOUT = 200mA
1.2
2.2
1.2
2.2
V
Output High Level
IOUT = -20mA
13.0
13.5
13.0
13.5
V
IOUT = -200mA
12.0
13.0
12.0
13.0
V
Collector Leakage
VC = 30V
100
500
10
500
µA
Rise/Fall Time*
CL = 1nF
3060
3060
ns
Under-Voltage Lockout Section
Start Threshold
8.8
9.2
9.6
8.8
9.2
9.6
V
UVLO Hysteresis
0.4
0.8
1.2
0.4
0.8
1.2
V
Supply Current Section
Start Up Current
VCC = 8V
1.1
2.5
1.1
2.5
mA
ICC
VPIN 1, VPIN 7, VPIN 9 = 0V; VPIN 2 = 1V
22
33
22
33
mA
Unless otherwise stated,these specifications apply for , RT = 3.65k, CT
= 1nF, VCC = 15V, -55
°C<TA<125°C for the UC1824, –40°C<TA<85°C for the
UC2824, and 0
°C<TA<70°C for the UC3824, TA=TJ.
* This parameter not 100% tested in production but guaranteed by design.
UC1824
UC2824
UC3824
ELECTRICAL CHARACTERISTICS
(cont.)
3


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