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UC1843-HIREL датащи(PDF) 4 Page - Texas Instruments

номер детали UC1843-HIREL
подробное описание детали  CURRENT MODE PWM CONTROLLER (KNOWN GOOD DIE)
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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UC1843-HIREL датащи(HTML) 4 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
Temp Stability +
V
REF
(max) * VREF (min)
TJ(max) * TJ (min)
VREF(max) and VREF(min) are the maximum and minimum reference voltages measured over
(6)
Gain defined as:
A + D
VPIN 1
DVPIN 3
, 0 v VPIN 3 v 0.8 V
UC1843-HiRel
SLUS896A – AUGUST 2009 – REVISED AUGUST 2009 .................................................................................................................................................. www.ti.com
Unless otherwise stated, these specifications apply for –55°C
≤ TA ≤ 125°C; VCC = 15 V
(1); R
T = 10 kW; CT = 3.3 nF,TA = TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
REFERENCE SECTION
Output Voltage
TJ = 25°C, IO = 1 mA
4.95
5.00
5.05
V
Line Regulation
12
≤ VIN ≤ 25 V
6
20
mV
Load Regulation
1
≤ I0 ≤ 20 mA
6
25
Temperature Stability
See (2)(3)
0.2
0.4
mV/°C
Total Output Variation
Line, load, tempature (2)
4.9
5.1
V
Output Noise Voltage
10 Hz
≤ f ≤ 10 kHz, TJ = 25°C
(2)
50
µV
Long Term Stability
TA = 125°C, 1000 Hrs
(2)
5
25
mV
Output Short Circuit
–30
–100
–180
mA
OSCILLATOR SECTION
Initial Accuracy
TJ = 25°C
(4)
47
52
57
kHz
Voltage Stability
12
≤ VCC ≤ 25 V
0.2%
1%
Temperature Stability
TMIN ≤ TA ≤ TMAX
(2)
5%
Amplitude
VPIN 4 peak-to-peak
(2)
1.7
V
ERROR AMP SECTION
Input Voltage
VPIN 1 = 2.5 V
2.45
2.50
2.55
V
Input Bias Current
–0.3
–1
µA
AVOL
2
≤ VO ≤ 4 V
65
90
dB
Unity Gain Bandwidth
TJ = 25°C
(2)
0.7
1
MHz
PSRR
12
≤ VCC ≤ 25 V
60
70
dB
Output Sink Current
VPIN 2 = 2.7 V, VPIN 1 = 1.1 V
2
6
mA
Output Source Current
VPIN 2 = 2.3 V, VPIN 1 = 5 V
–0.5
–0.8
VOUT High
VPIN 2 = 2.3 V, RL = 15 kΩ to ground
5
6
V
VOUT Low
VPIN 2 = 2.7 V, RL = 15 kΩ to Pin 8
0.7
1.1
CURRENT SENSE SECTION
Gain
See (5)(6)
2.85
3
3.15
V/V
Maximum Input Signal
VPIN 1 = 5 V
(5)
0.9
1
1.1
V
PSRR
12
≤ VCC ≤ 25 V
(2) (5)
70
dB
Input Bias Current
–2
–10
µA
Delay to Output
VPIN 3 = 0 V to 2 V
(2)
150
300
ns
OUTPUT SECTION
ISINK = 20 mA
0.1
0.4
Output Low Level
ISINK = 200 mA
1.5
2.2
V
ISOURCE = 20 mA
13
13.5
Output High Level
ISOURCE = 200 mA
12
13.5
Rise Time
TJ = 25°C, CL = 1 nF
(2)
50
150
ns
Fall Time
TJ = 25°C, CL = 1nF
(2)
50
150
(1)
Adjust VCC above the start threshold before setting at 15 V.
(2)
These parameters, although specified, are not 100% tested in production.
(3)
Temperature stability, sometimes referred to as average temperature coefficient, is described by the equation:
the appropriate temperature range. Note that the extremes in voltage do not necessarily occur at the extremes in temperature.
(4)
Output frequency equals oscillator frequency.
(5)
Parameter measured at trip point of latch with VPIN 2 = 0.
4
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): UC1843-HiRel


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