ML4841
ELECTRICAL CHARACTERISTICS (Continued)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OVP COMPARATOR
Threshold Voltage
2.6
70
2.7
95
2.8
V
Hysteresis
125
mV
PFC ILIMIT COMPARATOR
Threshold Voltage
-0.8
100
-1.0
190
150
-1.15
300
V
mV
ns
∆(PFC ILIMIT VTH - Gain Modulator Output)
Delay to Output
DC ILIMIT COMPARATOR
Threshold Voltage
Input Bias Current
Delay to Output
0.9
1.0
±0.3
150
1.1
±1
V
µA
ns
300
VIN OK COMPARATOR
Threshold Voltage
Hysteresis
2.4
0.8
2.5
1.0
2.6
1.2
V
V
GAIN MODULATOR
Gain (Note 3)
IAC = 100µA, VRMS = VFB = 0V
0.35
1.15
0.52
0.50
1.65
0.74
0.20
10
0.65
2.15
0.96
0.26
IAC = 50µA, VRMS = 1.2V, VFB = 0V
IAC = 50µA, VRMS = 1.8V, VFB = 0V
IAC = 100µA, VRMS = 3.3V, VFB = 0V 0.14
IAC = 100µA
Bandwidth
MHz
V
Output Voltage
I
AC = 250µA, VRMS = 1.15V,
0.74
0.82
0.90
212
VFB = 0V
OSCILLATOR
Initial Accuracy
TA = 25ºC
188
200
1
kHz
%
Voltage Stability
VCCZ - 3V < VCC < VCCZ - 0.5V
Temperature Stability
Total Variation
2
%
Line, Temp
182
218
9.5
kHz
V
Ramp Valley to Peak Voltage
Dead Time
2.5
400
7.5
PFC Only
260
4.5
ns
CT Discharge Current
VRAMP 2 = 0V, VRAMP 1 = 2.5V
mA
REFERENCE
Output Voltage
TA = 25ºC, I(VREF) = 1mA
VCCZ - 3V < VCC < VCCZ - 0.5V
1mA < I(VREF) < 20mA
7.4
7.5
2
7.6
10
15
V
mV
mV
%
Line Regulation
Load Regulation
Temperature Stability
Total Variation
2
0.4
Line, Load, Temp
7.25
7.65
25
V
Long Term Stability
TJ = 125ºC, 1000 Hours
5
mV
4
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
