ML4804 Ver la hoja de datos (PDF) - Micro Linear Corporation
Número de pieza
componentes Descripción
Fabricante
ML4804 Datasheet PDF : 14 Pages
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ML4804
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
TRI-FAULT DETECT
Fault Detect HIGH
Time to Fault Detect HIGH
Fault Detect LOW
VFB = VFAULT DETECT LOW
to VFB =OPEN; 470pF from VFB to GND
VCCOVP COMPARATOR
Threshold Voltage
Hysteresis
PFC ILIMIT COMPARATOR
Threshold Voltage
TA = Operation Temp Range
TA = Operation Temp Range
(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
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
Initial Accuracy
Voltage Stability
Temperature Stability
TA = 25°C
11V < VCC < 16.5V
Total Variation
Line, Temp
Ramp Valley to Peak Voltage
PFC Dead Time
CT Discharge Current
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
170
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
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
330
ns
7.5
mA
4
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