AS2208 Просмотр технического описания (PDF) - Astec Semiconductor => Silicon Link
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AS2208 Datasheet PDF : 6 Pages
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AS2208
Primary Side PWM Controller
Electrical Characteristics
Electrical Characteristics are guaranteed over full junction temperature range (0 to 105° C). Ambient temperature must be derated
based on power dissipation and package thermal characteristics. Unless otherwise specified, the conditions of test are VCC = 15 V;
BOK = 3 V; OV = 0V; RT = 680 Ω; CT = 10 nF. To override UVLO, VCC should be raised above 18 V prior to test.
Parameter
Symbol Test Condition
Min
Typ
Max
Unit
5 V Regulator
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Total Output Variation
Long-Term Stability
Output Noise Voltage
Maximum Source Current
Oscillator
Initial Accuracy
Voltage Stability
Temperature Stability
Amplitude
Upper Trip Point
Lower Trip Point
Discharge Current
Duty cycle Limit
Over-Temperature Shutdown
Current Sense Comparator
Transfer Gain
ISNS Level Shift
Maximum Input Signal
Input Bias Current
COMP Source Current
COMP Swing High
Power Supply Rejection Ratio
Propagation Delay to Output
VREG
PSRR
TCREG
VNOISE
IMAX
IREG = 1 mA, TJ= 25° C
9 ≤ VCC ≤ 18 V
1≤ IREG ≤ 20mA
Line, Load,Temperature
Over 1,000 hrs at 25°C
10 ≤ f ≤ 100kHz, TJ = 25°C
VREG = 4.8 V
FOSC
TCF
VOSC
VH
VL
IDSC
TOT
TJ =25°C
9 ≤ VCC ≤ 18 V
TMIN ≤ TJ ≤ TMAX
VRT/CT peak-to-peak
RT =680 Ω, CT =10nF, TJ =25°C
AV ISNS
VLS
VISNS MAX
IBIAS ISNS
ICOMPH
VCOMPH
PSRR
tPB
-0.2 ≤ VISNS ≤ 0.8 V
VISNS = 0 V
VCOMP =+5 V
VCOMP =+5 V
VCOMP =+5 V
9 ≤ VCC ≤ 18 V
4.90
5.00
5.10
V
5
15
mV
5
15
mV
0.2
0.4
mV/°C
4.85
5.15
V
5
25
mV
50
µV
30
120
180
mA
108
120
132
kHz
0.2
1
%
5
%
1.55
V
2.80
V
1.25
V
7.50
8.70
9.50
mA
46
50
55
%
140
°C
2.85
3.00
3.15
V/V
1.50
V
1.00
1.08
1.20
V
-1
-10
µA
0.6
1.0
mA
5.2
5.6
V
70
dB
85
150
ns
ASTEC Semiconductor
80
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