ML4841(V2) Просмотр технического описания (PDF) - Fairchild Semiconductor
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ML4841 Datasheet PDF : 13 Pages
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ML4841
PRODUCT SPECIFICATION
Electrical Characteristics (continued)
Unless otherwise specified, ICC = 25mA, RT = 23kΩ, RRAMP1 = 28.7kΩ, CT = 400pF, CRAMP1 = 270pF, TA =
Operating Temperature Range (Note 1)
Symbol
Parameter
Input Bias Current
Output High Voltage
Output Low Voltage
Source Current
Sink Current
Open Loop Gain
PSRR
OVP 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
Dead Time
CT Discharge Current
Conditions
∆VIN = ±0.5V, VOUT = 6V
∆VIN = ±0.5V, VOUT = 1.5V
VCCZ - 3V < VCC < VCCZ - 0.5V
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 = 250µA, VRMS = 1.15V,
VFB = 0V
TA = 25°C
VCCZ - 3V < VCC < VCCZ - 0.5V
Line, Temp
PFC Only
VRAMP 2 = 0V, VRAMP 1 = 2.5V
Min.
6.0
-40
40
60
60
2.6
70
-0.8
100
0.9
2.4
0.8
0.35
1.15
0.52
0.14
0.74
188
182
260
4.5
Typ.
-0.5
6.7
0.65
-90
90
75
75
2.7
95
-1.0
190
150
1.0
±0.3
150
2.5
1.0
0.50
1.65
0.74
0.20
10
0.82
200
1
2
2.5
400
7.5
Max.
-1.0
1.0
Units
µA
V
V
µA
µA
dB
dB
2.8 V
125 mV
-1.15 V
mV
300 ns
1.1 V
±1 µA
300 ns
2.6 V
1.2 V
0.65
2.15
0.96
0.26
MHz
0.90 V
212 kHz
%
%
218 kHz
V
ns
9.5 mA
4
REV. 1.0.3 6/13/01
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