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