ML4805CS 查看數據表（PDF） - Micro Linear Corporation
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ML4805CS Datasheet PDF : 13 Pages
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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.
VCC ............................................................................................... 18V
ISENSE Voltage .................................................. -3V to 5V
Voltage on Any Other Pin ...... GND - 0.3V to VCC + 0.3V
IREF ............................................................................................ 20mA
IAC Input Current .................................................... 10mA
Peak PFC OUT Current, Source or Sink ................ 500mA
Peak PWM OUT Current, Source or Sink .............. 500mA
PFC OUT, PWM OUT Energy Per Cycle .................. 1.5µJ
ML4805
Junction Temperature .............................................. 150°C
Storage Temperature Range ..................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................... 260°C
Thermal Resistance (θJA)
Plastic DIP ....................................................... 70°C/W
Plastic SOIC .................................................. 100°C/W
OPERATING CONDITIONS
Temperature Range
ML4805CX ................................................. 0°C to 70°C
ML4805IX ............................................... -40°C to 85°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VCC = 15V, RT = 29.4kΩ, RRAMP1 = 15.4kΩ, CT = 270pF, CRAMP1 = 620pF,
TA = Operating Temperature Range (Note 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
VOLTAGE ERROR AMPLIFIER
Input Voltage Range
0
Transconductance
VNON INV = VINV, VEAO = 3.75V
40
65
Feedback Reference Voltage
2.43
2.50
Input Bias Current
Note 2
-0.5
Output High Voltage
6.0
6.7
Output Low Voltage
0.1
Source Current
Sink Current
∆VIN = ±0.5V, VOUT = 6V
∆VIN = ±0.5V, VOUT = 1.5V
-40
-70
40
70
Open Loop Gain
60
70
PSRR
11V < VCC < 16.5V
60
70
CURRENT ERROR AMPLIFIER
Input Voltage Range
-1.5
Transconductance
VNON INV = VINV, VEAO = 3.75V
60
100
Input Offset Voltage
0
8
Input Bias Current
-0.5
Output High Voltage
6.0
6.7
Output Low Voltage
0.65
Source Current
Sink Current
∆VIN = ±0.5V, VOUT = 6V
∆VIN = ±0.5V, VOUT = 1.5V
-40
-70
40
70
Open Loop Gain
55
65
PSRR
11V < VCC < 16.5V
60
75
MAX UNITS
5
V
80
µ
2.57
V
-1.0
µA
V
0.4
V
-150
µA
150
µA
dB
dB
2
V
120
µ
15
mV
-1.0
µA
V
1.0
V
-150
µA
150
µA
dB
dB
3
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