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TL3842BD Datasheet(PDF) 5 Page - Texas Instruments

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Part No. TL3842BD
Description  HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

TL3842BD Datasheet(HTML) 5 Page - Texas Instruments

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Reference Section Electrical Characteristics
Oscillator Section
(1) Electrical Characteristics
TL284xB, TL384xB
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
VCC = 15 V
(1), R
T = 10 kΩ, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB
TL384xB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP(2)
MAX
MIN
TYP(2)
MAX
Output voltage
IO = 1 mA, TJ = 25°C
4.95
5
5.05
4.9
5
5.1
V
Line regulation
VCC = 12 V to 25 V
6
20
6
20
mV
Load regulation
IO = 1 mA to 20 mA
6
25
6
25
mV
Average temperature
0.2
0.4
0.2
0.4
mV/
°C
coefficient of output voltage
Output voltage, worst-case
VCC = 12 V to 25 V,
4.9
5.1
4.82
5.18
V
variation
IO = 1 mA to 20 mA
Output noise voltage
f = 10 Hz to 10 kHz, TJ = 25°C
50
50
μV
Output-voltage long-term drift After 1000 h at TJ = 25°C
5
25
5
25
mV
Short-circuit output current
–30
–100
–180
–30
–100
–180
mA
(1)
Adjust VCC above the start threshold before setting it to 15 V.
(2)
All typical values are at TJ = 25°C.
VCC = 15 V
(2), R
T = 10 kΩ, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB
TL384xB
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP(3)
MAX
MIN
TYP(3)
MAX
TJ = 25°C
49
52
55
49
52
55
TA = Tlow to Thigh
48
56
48
56
Initial accuracy
kHz
TJ = 25°C, RT = 6.2 kΩ,
225
250
275
225
250
275
CT = 1 nF
Voltage stability
VCC = 12 V to 25 V
0.2
1
0.2
1
%
Temperature stability
5
5
%
Amplitude
Peak to peak
1.7
1.7
V
TJ = 25°C, RT/CT = 2 V
7.8
8.3
8.8
7.8
8.3
8.8
Discharge current
mA
RT/CT = 2 V
7.5
8.8
7.6
8.8
(1)
Output frequency equals oscillator frequency for the TL3842B and TL3843B. Output frequency is one-half the oscillator frequency for the
TL3844B and TL3845B.
(2)
Adjust VCC above the start threshold before setting it to 15 V.
(3)
All typical values are at TJ = 25°C.
5
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