參數(shù)資料
型號(hào): YD3843
廠商: Wuxi Youda electronics Co.,LTD.
英文描述: CURRENT MODE PWM CONTROL CIRCUITS
中文描述: 電流模式PWM控制電路
文件頁(yè)數(shù): 2/4頁(yè)
文件大小: 93K
代理商: YD3843
YOUDA INTEGRATED CIRCUIT
YD3843
ABSOLUTE MAXIMUM RATINGS(Tamb=25℃)
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage(Low impedance Source)
Vcc
30
V
Supply Voltage(Icc<30mA)
Vcc
Self Limiting
V
Output Current
Io
±1
A
Output Energy(Capacitive Load)
5
μJ
Analog Inputs(pin 2, 3)
VI(ANA)
-0.3 to +6.3
V
Error Amplifier Output Sink Current
lSINK(EA)
10
mA
Power Dissipation
PD
At Tamb≤25℃ 1.0
W
Lead Temperature
Tlead
300
Storage Temperature
Tstg
-65—+150
Note 1:Ta>25℃, PD derated with 8mW/℃.
ELECTRICAL CHARACTERISTICS
(Vcc=15V, RT =10kΩ, CT =3.3nF, Tamb=0℃~70℃, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference Section
Output Voltage
VREF
Tj=25℃, Io=1mA
4.90
5.00
5.10
V
Line Regulation
VREF
12≤
VIN≤25V
6
20
mV
Load Regulation
VREF
1≤lo=20mA
6
25
MV
Output Noise Voltage
Vose
10Hz≤f≤10kHz,
Tj=25℃(note 2)
50
6
mV
Long Term Stability
Ta=25℃, 1000Hrs(note
2)
5
25
mV
Output Short Circuit
lsc
-30
-100
-180
mA
Oscillator Section
Initial Accuracy
f
Tj=25℃
47
52
57
kHz
Voltage Stability
f/Vcc
12≤Vcc≤25V
0.2
1
%
Temp Stability
Tmin≤TA≤Tmax(note
2)
5
%
Amplitude
Vosc
Vpin 4 peak to peak
1.7
V
Error Amplifier Section
Input Voltage
VI(EA)
Vpin 1=2.5V
2.42
2.50
2.58
V
Input Bias Current
lBIAS
-0.3
-2
μA
AVOL
2≤Vo≤4V
60
90
dB
Unity Gain
Bandwidth
Tj=25℃(note 2)
0.7
1
6.0
mHz
PSRR
12≤Vcc≤25V
60
70
dB
Output Sink Current
lsink
Vpin2=2.7V,
Vpin 1=1.1V
2
6
mA
WuXi YouDa Electronics Co., Ltd
2 of 4
Website: www.e-youda.com
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