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UC3843B-D08-T Arkusz danych(PDF) 4 Page - Unisonic Technologies

Numer części UC3843B-D08-T
Szczegółowy opis  HIGH PERFORMANCE CURRENT MODE CONTROLLERS
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Producent  UTC [Unisonic Technologies]
Strona internetowa  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3843B-D08-T Arkusz danych(HTML) 4 Page - Unisonic Technologies

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UC3842B/3843B
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 11
www.unisonic.com.tw
QW-R103-012.D
ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNIT
Total Power Supply and Zener Current
(ICC + Iz)
30
mA
Output Current, Source or Sink (note1)
Io
1.0
A
Output Energy (capacitive load per cycle)
W
5.0
μJ
Current Sense and Voltage Feedback Inputs
VIN
-0.3 ~ +5.5
V
Error Amp. Output Sink Current
IO(SINK)
10
mA
DIP-8
1250
mW
Power Dissipation
SOP-8
PD
702
mW
Operating Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
0 ~ +70
°C
Storage Temperature Range
TSTG
-65 ~ +150
°C
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
DIP-8
100
°C/W
Thermal Resistance Junction to Ambient
SOP-8
θJA
178
°C/W
ELECTRICAL CHARACTERISTICS
(0
°C ≤TA≤70°C, VCC=15V [note 2], RT=10k, CT=3.3nF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
REFERENCE SECTION
Output Voltage
VREF
Io=1.0mA, TJ =25°C
4.9
5.0
5.1
V
Line Regulation
ΔVLINE
VCC=12V ~ 25V
2.0
20
mV
Load Regulation
ΔVLOAD
Io=1.0mA ~ 20mA
3.0
25
mV
Temperature Stability
TS
0.2
mV/
°C
Total Output Variation
VREF
Line, Load, Temperature
4.82
5.18
V
Output Noise Voltage
eN
F=10kHz ~ 10Hz, TJ =25°C
50
uV
Long Term Stability
S
TA=125°C,1000Hrs
5
mV
Output Short Circuit Current
ISC
-30
-85
-180
mA
OSCILLATOR SECTION
Frequency
F
TJ =25°C
Ta=0°C ~ 70°C
TJ =25°C (RT=6.2k,CT=1.0nF)
49
48
225
52
250
55
56
275
kHz
Frequency Change with Voltage
ΔfOSC/ΔV 12 ≤ VCC ≤25V
0.2
1.0
%
Frequency Change with
Temperature
ΔfOSC/ΔT 0°C ≤TA ≤70°C
0.5
%
Oscillator Voltage Swing(Peak to
Peak)
VOSC
1.6
V
Discharge Current
Idischg
TJ =25°C
0
°C ≤TA ≤70°C
7.8
7.6
8.3
8.8
8.8
mA
ERROR AMPLIFIER SECTION
Voltage Feedback Input
VFB
Vo=2.5V
2.42
2.50
2.58
V
Input Bias Current
II(BIAS)
VFB=5.0V
-0.1
-2.0
μA
Open Loop Voltage Gain
GVO
2 ≤Vo≤4V
65
90
dB
Unity Gain Bandwidth
GBW
TJ =25°C
0.7
1.0
MHz
Power Supply Rejection Ratio
PSRR
I2V≤Vcc≤25V
60
70
dB
Output Sink Current
ISINK
Vo=1.1V,VFB =2.7V
2.0
12
mA
Output Source Current
ISOURCE
Vo=5.0V,VFB=2.3V
-0.5
-1.0
mA
Output Voltage Swing High State
VOH
VFB=2.3V, RL=15k to GND
5.0
6.2
V


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