ML4804 Fairchild, ML4804 Datasheet - Page 4

• Manufacturer Part Number: ML4804
• Description: Power Factor Correction and PWM Controller Combo
• Manufacturer: Fairchild

ML4804
ELECTRICAL CHARACTERISTICS
TRI-FAULT DETECT
V
PFC I
DC I
V
GAIN MODULATOR
OSCILLATOR
4
SYMBOL
CC
IN
OVP COMPARATOR
OK COMPARATOR
LIMIT
LIMIT
COMPARATOR
COMPARATOR
Fault Detect HIGH
Time to Fault Detect HIGH
Fault Detect LOW
Threshold Voltage
Hysteresis
Threshold Voltage
(PFC I
Delay to Output
Threshold Voltage
Input Bias Current
Delay to Output
Threshold Voltage
Hysteresis
Gain (Note 3)
Bandwidth
Output Voltage
Initial Accuracy
Voltage Stability
Temperature Stability
Total Variation
Ramp Valley to Peak Voltage
PFC Dead Time
C
T
Discharge Current
LIMIT
V
TH
PARAMETER
- Gain Modulator Output)
V
to V
T
T
I
I
I
I
I
I
V
T
11V < V
Line, Temp
f
V
AC
AC
AC
AC
AC
AC
OSC
A
A
A
FB
FB
RAMP 2
= Operation Temp Range
= Operation Temp Range
= 25°C
FB
= 50µA, V
= 50µA, V
= 100µA, V
= 100µA, V
= 100µA
= 350µA, V
= 0V
= 250kHz, R
= V
=OPEN; 470pF from V
CC
FAULT DETECT LOW
= 0V, V
CONDITIONS
< 16.5V
RMS
RMS
RMS
RMS
RMS
T
RAMP 1
= 75.0kΩ, C
= 1.2V, V
= 1.8V, V
= V
= 3.3V, V
= 1V,
FB
= 2.5V
= 0V
FB
FB
FB
T
to GND
FB
= 100pF
= 0V
= 0V
= 0V
MIN
2.65
0.95
2.35
0.60
0.85
0.20
0.60
120
-0.9
0.4
1.7
0.8
1.8
3.5
71
68
2.75
16.4
±0.3
2.45
0.80
0.30
0.75
TYP
-1.0
220
150
150
520
250
0.5
2.0
1.0
1.0
2.0
1.0
2.5
5.5
10
76
2
1
2
REV. 1.0.2 3/9/2001
MAX
2.85
1.05
2.55
1.05
2.40
1.25
0.40
-1.1
300
300
600
330
0.6
2.3
1.2
0.9
7.5
±1
81
84
4
UNITS
MHz
kHz
kHz
mV
mA
ms
µA
ns
ns
ns
ns
%
%
V
V
V
V
V
V
V
V
V
V