3

ML4818

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.

Output Driver Current, Source or Sink

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

Pulse (0.5

µs) ........................................................ 1.5A

Analog Inputs

Error Amplifier Output Current (E/A OUT) ................ 5mA

SOFT START Sink Current ..................................... 50 mA

Junction Temperature ............................................. 150

°C

Storage Temperature Range ..................... –65

°C to 150°C

Lead Temperature (Soldering 10 Sec)...................... 260

°C

Thermal Resistance (

Plastic Power DIP ............................................ 40

°C/W

Plastic SOIC ..................................................... 80

°C/W

OPERATING CONDITIONS

Operating Temperature Range ....................... 0

°C to 70°C

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP.

MAX

UNITS

OSCILLATOR

Initial Accuracy

410

450

525

kHz

Voltage Stability

–0.3

%/V

Temperature Stability

0.2

%

Total Variation

line, temp.

375

525

kHz

4.7

5.5

6.3

mA

Clock Out High

2.4

3.1

6

V

Clock Out Low

0

0.4

V

Ramp Peak

0

4.1

V

Ramp Valley

1.5

5

V

Ramp Valley to Peak

0

2.6

5

V

REFERENCE

Output Voltage

4.95

5.0

5.05

V

Line Regulation

–20

2

20

mV

Load Regulation

–20

3

20

mV

Temperature Stability

.2

mV/

°C

Total Variation

4.85

5.15

V

Output Noise Voltage

10Hz to 10kHz

50

mV

Long Term Stability

5

25

mV

Short Circuit Current

–20

–50

mA

ERROR AMPLIFIER

Input Offset Voltage

–40

30

mV

Input Bias Current

–3

0.6

3

µA

Input Offset Current

0.1

1

µA

Open Loop Gain

70

75

dB

PSRR

65

80

dB