ML4804CS 查看數據表（PDF） - Fairchild Semiconductor
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ML4804CS Datasheet PDF : 14 Pages
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ML4804
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TRI-FAULT DETECT
Fault Detect HIGH
Time to Fault Detect HIGH
Fault Detect LOW
VCCOVP COMPARATOR
Threshold Voltage
Hysteresis
PFC ILIMIT COMPARATOR
Threshold Voltage
(PFC ILIMIT VTH - Gain Modulator Output)
Delay to Output
DC ILIMIT COMPARATOR
Threshold Voltage
Input Bias Current
Delay to Output
VIN OK COMPARATOR
Threshold Voltage
Hysteresis
GAIN MODULATOR
Gain (Note 3)
Bandwidth
Output Voltage
OSCILLATOR
Initial Accuracy
Voltage Stability
Temperature Stability
Total Variation
Ramp Valley to Peak Voltage
PFC Dead Time
CT Discharge Current
CONDITIONS
VFB = VFAULT DETECT LOW
to VFB =OPEN; 470pF from VFB to GND
TA = Operation Temp Range
TA = Operation Temp Range
IAC = 100µA, VRMS = VFB = 0V
IAC = 50µA, VRMS = 1.2V, VFB = 0V
IAC = 50µA, VRMS = 1.8V, VFB = 0V
IAC = 100µA, VRMS = 3.3V, VFB = 0V
IAC = 100µA
IAC = 350µA, VRMS = 1V,
VFB = 0V
TA = 25°C
11V < VCC < 16.5V
Line, Temp
fOSC = 250kHz, RT = 75.0kΩ, CT = 100pF
VRAMP 2 = 0V, VRAMP 1 = 2.5V
MIN
2.65
0.4
1.7
-0.9
120
0.95
2.35
0.8
0.60
1.8
0.85
0.20
0.60
71
68
3.5
TYP
2.75
2
0.5
16.4
2.0
-1.0
220
150
1.0
±0.3
150
2.45
1.0
0.80
2.0
1.0
0.30
10
0.75
76
1
2
2.5
520
250
5.5
MAX UNITS
2.85
V
4
ms
0.6
V
V
2.3
V
-1.1
V
mV
300
ns
1.05
V
±1
µA
300
ns
2.55
V
1.2
V
1.05
2.40
1.25
0.40
0.9
MHz
V
81
kHz
%
%
84
kHz
V
600
ns
330
ns
7.5
mA
4
REV. 1.0.2 3/9/2001
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