參數(shù)資料
型號(hào)： ML4810
廠商： Fairchild Semiconductor Corporation
英文描述： High Frequency PWM Controller(高頻PWM控制器)
中文描述： 高頻PWM控制器（高頻脈寬調(diào)制控制器）
文件頁(yè)數(shù)： 3/11頁(yè)
文件大?。?/td> 196K
代理商： ML4810
ML4810, ML4811
REV. 1.0 10/10/2000
3
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
Supply Voltage (Pins 18, 16)...................................... 25V
Output Current, Source or Sink (Pins 14, 17)
DC ....................................................................... 0.5A
Pulse (0.5
μ
s) ......................................................... 2.0A
Analog Inputs
(Pins INV, NI, SOFT START) ....................... –0.3V to 7V
(Pins 9, 10, 11, 12, 20) .............................. –0.3V to 6V
Clock Output Current (Pins 5) .................................–5mA
Error Amplifier Output Current (Pin 3)...................... 5mA
Junction Temperature ............................................. 150
°
C
Storage Temperature Range ..................... –65
°
C to 150
°
C
Lead Temperature (Soldering 10 sec.) ..................... 260
°
C
Thermal Resistance (
θ
JA
)
Plastic DIP....................................................... 65
°
C/W
Plastic SOIC .................................................... 65
°
C/W
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, V
CC
= 15V, R
T
= 3.65k
, C
T
= 1000pF, T
A
= Operating Temperature Range. (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Initial Accuracy
T
J
= 25
°
C
10V < V
CC
< 25V
360
400
440
kHz
Voltage Stability
0.2
4
%
Temperature Stability
5
%
Total Variation
line, temperature
340
460
kHz
Clock Out High
3.9
4.5
V
Clock Out Low
2.3
2.9
V
Ramp Peak
2.8
V
Ramp Valley
1.0
V
Ramp Valley to Peak
1.6
2.3
V
Sync Input Threshold
0.8
1.0
1.4
V
Sync Input Current
SYNC = 4V
μ
A
REFERENCE
Output Voltage
T
J
= 25
°
C, I
O
= 1mA
10V < V
CC
< 25V
1mA < I
O
< 10mA
0
°
C < T
J
< 150
°
C
line, load, temperature
5.00
5.10
5.20
V
Line Regulation
2
20
mV
Load Regulation
5
20
mV
Temperature Stability
0.2
0.4
%
Total Variation
4.95
5.25
V
Output Noise Voltage
10Hz to 10kHz
50
μ
V
Long Term Stability
T
J
= 125
°
C, 1000 hrs
V
REF
= 0V
5
25
mV
Short Circuit Current
–15
–50
–100
mA
UNDERVOLTAGE LOCKOUT
Start Threshold
15
16
17
V
UVLO Hysteresis
6.5
7
7.5
V
ERROR AMPLIFIER
Input Offset Voltage
±
20
mV
μ
A
μ
A
Input Bias Current
0.6
3
Input Offset Current
0.1
1
Open Loop Gain
1 < V
O
< 4V
60
96
dB
OPERATING CONDITIONS
Temperature Range
ML4810, ML4811...................................... 0
°
C to 70
°
C
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