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UC3824DW датащи(PDF) 4 Page - Texas Instruments

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номер детали UC3824DW
подробное описание детали  HIGH SPEED PWM CONTROLLER
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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UC3824DW датащи(HTML) 4 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
UC1824
UC2824
UC3824
SLUS326A – MARCH 1997 – REVISED JULY 2007
Unless otherwise stated, these specifications apply for, RT = 3.65k, CT = 1 nF, VCC = 15 V, –55°C < TA < 125°C for the
UC1824, –40
°C < T
A < 85°C for the UC2824, and 0°C < TA < 70°C for the UC3824, TA = TJ.
UC1824
UC3824
UC2824
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
Reference Section
Output voltage
TJ = 25°C, IO = 1 mA
5.05
5.10
5.15
5
5.10
5.20
V
Line regulation
10 V < VCC < 30 V
2
20
2
20
mV mV
Load regulation
1 mA < IO < 10 mA
5
20
5
20
Temperature stability(1)
TMIN < TA < TMAX
0.2
0.4
0.2
0.4
mV/
°C
Total output variation(1)
Line, Load, Temperature
5
5.20
4.95
5.25
V
Output noise voltage(1)
10 Hz < f < 10 kHz
50
50
μV
long term stability(1)
TJ = 125°C, 1000 hrs.
5
25
5
25
mV
Short circuit current
VREF = 0 V
–15
–50
–100
–15
–50
–100
mA
Oscillator Section
Initial accuracy(1)
TJ = 25°C
360
400
440
360
400
440
kHz
Voltage stability(1)
10 V < VCC < 30 V
0.2%
2%
0.2%
2%
Temperature stability(1)
TMIN < TA < TMAX
5%
5%
Total variation(1)
Line, Temperature
340
460
340
460
kHz
Clock out high
3.9
4.5
3.9
4.5
Clock out low
2.3
2.9
2.3
2.9
Ramp peak(1)
2.6
2.8
3
2.6
2.8
3
V
Ramp valley(1)
0.7
1
1.25
0.7
1
1.25
Ramp valley to peak(1)
1.6
1.8
2
1.6
1.8
2
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
1 V < VO < 4 V
60
95
60
95
CMRR
1.5 V < VCM < 5.5 V
75
95
75
95
dB
PSRR
10 V < VCC < 30 V
85
110
85
110
Output sink current
VPIN 3 = 1 V
1
2.5
1
2.5
mA
Output source current
VPIN 3 = 4 V
–0.5
–1.3
–0.5
–1.3
Output high voltage
IPIN 3 = –0.5 mA
4
4.7
5
4
4.7
5
V
Output low voltage
IPIN 3 = 1 mA
0
0.5
1
0
0.5
1
Unity gain bandwidth(1)
3
5.5
3
5.5
MHz
Slew rate(1)
6
12
6
12
V/
μs
PWM Comparator Section
Pin 7 bias current
VPIN 7 = 0 V
–1
–5
–1
–5
μA
Duty cycle range
0
80
0
85
%
Pin 3 zero dc threshold
VPIN 7 = 0 V
1.1
1.25
1.1
1.25
V
Delay to output(1)
50
80
50
80
ns
Soft-Start Section
Charge current
VPIN 8 = 0.5 V
3
9
20
3
9
20
μA
Discharge current
VPIN 8 = 1 V
1
1
mA
Current Limit/Shutdown Section
Pin 9 bias current
0 < VPIN 9 < 4 V
15
10
μA
(1)
This parameter not 100% tested in production but guaranteed by design.
4
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