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UC3842G-S08-T Folha de dados(PDF) 4 Page - Unisonic Technologies

Nome de Peças UC3842G-S08-T
Descrição Electrónicos  HIGH PERFORMANCE CURRENT MODE CONTROLLERS
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Fabricante Electrônico  UTC [Unisonic Technologies]
Página de início  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3842G-S08-T Folha de dados(HTML) 4 Page - Unisonic Technologies

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UC3842G
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 8
www.unisonic.com.tw
QW-R103-036.B
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage (Low Impedance Source)
VCC
30
V
Supply Voltage (ICC<30mA)
VCC
Self Limiting
V
Output Current (Peak)
IO(PEAK)
±1
A
Output Energy (Capacity load)
5
μJ
Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
-40 ~ +125
°C
Storage Temperature
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.
ELECTRICAL CHARACTERISTICS
(0°C≤Ta≤70°C, VCC=15V, CT=3.3nF , unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP MAX
UNIT
STANDBY SECTION
Reduce Frequency Point of Standby Mode
VCOMP
Right load
2.2
V
REFERENCE SECTION
Reference Output Voltage
VREF
IOUT=1.0mA
4.95
5.0
5.05
V
Line Regulation
ΔVREF
12V≤VCC≤25V
3
20
mV
Load Regulation
ΔVREF
IOUT=1.0mA to 20mA
8
25
mV
Output Short Circuit Current
ISC
-30
-65
-180
mA
OSCILLATOR SECTION
Frequency
fOSC
Normal
49
52
55
KHz
Frequency Change
ΔfOSC/ΔV 12V≤VCC≤25V
0.2
1.0
VOSC(P-P)
1.6
V
VOSCL
1.2
V
Oscillator Voltage
VOSCH
2.8
V
ERROR AMPLIFIER SECTION
Input Voltage
VI(EA)
VCOMP=2.5V
2.42
2.50
2.58
V
Input Bias Current
II(BIAS)
VFB=5V
-0.3
-2
μA
AVOL
2V≤VOUT≤4V
60
90
dB
Unity Gain Bandwidth
TJ=25°C(Note1)
0.7
1
MHz
PSRR
12V≤VCC≤25V
60
70
dB
Output Sink Current
ISINK
VFB=2.7V, VCOMP=1.1V
2
4
mA
Output Source Current
ISOURCE
VFB=2.3V, VCOMP=5V
-0.5
1
mA
VOUT High
VOH
VFB=2.3V, RL=15K to GND
5.0
5.6
V
VOUT Low
VOL
VFB=2.7V, RL=15K to VREF
0.8
1.1
V
CURRENT SENSE SECTION
Gain
GV
(Note2,3)
2.85
3
3.15
V/V
Maximum Input Signal
VI(MAX)
VCOMP=5V(Note2)
0.9
1
1.1
V
PSRR
12V≤VCC≤25V
70
dB
Input Bias Current
IBIAS
-2
-10
μA
Delay to Output
150
300
nS


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