ML4804
ELECTRICAL CHARACTERISTICS
SYMBOL
TRI-FAULT DETECT
Fault Detect HIGH
Time to Fault Detect HIGH
Fault Detect LOW
V
CC
OVP COMPARATOR
Threshold Voltage
Hysteresis
PFC I
LIMIT
COMPARATOR
Threshold Voltage
(PFC I
LIMIT
V
TH
- Gain Modulator Output)
Delay to Output
DC I
LIMIT
COMPARATOR
Threshold Voltage
Input Bias Current
Delay to Output
V
IN
OK COMPARATOR
Threshold Voltage
Hysteresis
GAIN MODULATOR
Gain (Note 3)
I
AC
= 100µA, V
RMS
= V
FB
= 0V
I
AC
= 50µA, V
RMS
= 1.2V, V
FB
= 0V
I
AC
= 50µA, V
RMS
= 1.8V, V
FB
= 0V
I
AC
= 100µA, V
RMS
= 3.3V, V
FB
= 0V
Bandwidth
Output Voltage
OSCILLATOR
Initial Accuracy
Voltage Stability
Temperature Stability
Total Variation
Ramp Valley to Peak Voltage
PFC Dead Time
C
T
Discharge Current
V
RAMP 2
= 0V, V
RAMP 1
= 2.5V
170
3.5
Line, Temp
68
2.5
250
5.5
330
7.5
T
A
= 25°C
11V < V
CC
< 16.5V
71
76
1
2
84
81
kHz
%
%
kHz
V
ns
mA
I
AC
= 100µA
I
AC
= 350µA, V
RMS
= 1V,
V
FB
= 0V
0.60
0.60
1.8
0.85
0.20
0.80
2.0
1.0
0.30
10
0.75
0.9
1.05
2.40
1.25
0.40
MHz
V
2.35
0.8
2.45
1.0
2.55
1.2
V
V
0.95
1.0
±0.3
150
1.05
±1
300
V
µA
ns
-0.9
120
-1.0
220
150
300
-1.1
V
mV
ns
T
A
= Operation Temp Range
T
A
= Operation Temp Range
1.7
16.4
2.0
2.3
V
V
V
FB
= V
FAULT DETECT LOW
to V
FB
=OPEN; 470pF from V
FB
to GND
0.4
2.65
2.75
2
0.5
2.85
4
0.6
V
ms
V
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
4
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
