ML4800 Fairchild Semiconductor, ML4800 Datasheet - Page 4

• Manufacturer Part Number: ML4800
• Description: The ML4800 is a controller for power factor corrected, switched mode power supplies
• Manufacturer: Fairchild Semiconductor

ML4800
Electrical Characteristics
Unless otherwise specified, V
4
Symbol
OVP Comparator
Tri-Fault Detect
PFC I
DC I
V
GAIN Modulator
Oscillator
IN
OK Comparator
LIMIT
LIMIT
Input Bias Current
Output High Voltage
Output Low Voltage
Source Current
Sink Current
Open Loop Gain
Power Supply Rejection Ratio
Threshold Voltage
Hysteresis
Fault Detect HIGH
Time to Fault Detect HIGH
Fault Detect LOW
Threshold Voltage
(PFC I
Modulator Output)
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
Comparator
Comparator
LIMIT
Parameter
V
TH
- Gain
CC
= 15V, R
(Continued)
T
= 52.3k , C
V
V
11V < V
V
V
GND
I
I
I
I
I
I
T
11V < V
Line, Temp
AC
AC
AC
AC
AC
AC
A
IN
IN
FB
FB
= 25°C
= 100µA, V
= 50µA, V
= 50µA, V
= 100µA, V
= 100µA
= 350µA, V
= ±0.5V, V
= ±0.5V, V
= V
= OPEN. 470pF from V
FAULT DETECT LOW
CC
CC
T
< 16.5V
< 16.5V
Conditions
= 470pF, T
RMS
RMS
OUT
OUT
RMS
RMS
RMS
= 1.2V, V
= 1.8V, V
= 6V
= 1.5V
= V
= 3.3V, V
= 1V, V
FB
A
= Operating Temperature Range (Note 1)
= 0V
to
FB
FB
FB
FB
FB
= 0V
to
= 0V
= 0V
= 0V
Min.
2.65
2.65
0.95
2.35
0.60
0.85
0.20
0.60
175
-0.9
120
-40
6.0
0.4
0.8
1.8
40
60
60
71
68
PRODUCT SPECIFICATION
Typ.
-104
0.65
2.75
2.75
±0.3
2.45
0.80
0.30
0.75
-0.5
160
250
-1.0
220
150
150
6.7
0.5
1.0
1.0
2.0
1.0
2.5
70
75
10
76
2
1
2
REV. 1.0.5 9/25/01
Max. Units
2.85
2.85
1.05
2.55
1.05
2.40
1.25
0.40
-1.0
-1.1
325
300
300
1.0
0.6
1.2
0.9
±1
81
84
4
MHz
kHz
kHz
mV
mV
ms
µA
µA
µA
dB
dB
µA
ns
ns
%
%
V
V
V
V
V
V
V
V
V
V
V