ML4823IP 데이터 시트보기 (PDF) - Micro Linear Corporation

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ML4823IP

High Frequency Power Supply Controller

Micro Linear Corporation 

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 (VC, VCC) .......................................... 30V

OUTPUT Current, Source or Sink

DC ....................................................................... 0.5A

Pulse (0.5µs) ......................................................... 2.0A

Analog Inputs

(INV, NI, RAMP, SS, ILIM) .................. GND –0.3V to 6V

CLOCK OUTPUT Current ....................................... –5mA

F/A OUT Current ...................................................... 5mA

SOFT START Sink Current ...................................... 20mA

RT Charging Current ................................................ –5mA

ML4823

Junction Temperature ............................................. 125°C

Storage Temperature Range ..................... –65°C to 150°C

Lead Temperature (Soldering 10 sec.) ..................... 260°C

Thermal Resistance (θJA)

Plastic DIP ....................................................... 80°C/W

Plastic SOIC .................................................. 105°C/W

Plastic Chip Carrier (PLCC) .............................. 78°C/W

OPERATING CONDITIONS

Temperature Range

ML4823C .................................................. 0°C to 70°C

ML4823I ................................................ –40°C to 85°C

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, RT = 3.65kΩ, CT = 1000pF, TA = Operating Temperature Range, VCC = 15V. (Note 1)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

OSCILLATOR

Initial Accuracy

Voltage Stability

Temperature Stability

TJ = 25°C,

10V ≤ VCC ≤ 30V,

360

400

440

kHz

0.2

2

%

5

%

Total Variation

Line, temp.

340

460

kHz

Clock Out High

3.9

4.5

V

Clock Out Low

2.3

2.9

V

Ramp Peak

2.6

2.8

3.0

V

Ramp Valley

0.7

1.0

1.25

V

Ramp Valley to Peak

1.6

1.8

2.0

V

REFERENCE

Output Voltage

Line Regulation

Load Regulation

Temperature Stability

Total Variation

TJ = 25°C, IO = 1mA

10V ≤ VCC ≤ 30V

1mA ≤ IO ≤ 10mA

–40°C ≤ TJ ≤ 150°C,

Line, load, temp.

5.025

5.10

5.175

V

2

20

mV

5

20

mV

0.2

0.4

%

4.975

5.225

V

Output Noise Voltage

10Hz to 10kHz

50

µV

Long Term Stability

Short Circuit Current

ERROR AMPLIFIER

TJ = 125°C, 1000 hrs,

VREF = 0V

5

25

mV

–15

–50

–100

mA

Input Offset Voltage

±30

mV

Input Bias Current

0.6

3

µA

Input Offset Current

0.1

1

µA

Open Loop Gain

1 ≤ VO ≤ 4V

50

95

dB

3

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