3

ML4821

Micro Linear

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.

OUT Current, Source or Sink .................................... 1.0A

Output Energy (capacitive load per cycle) .................... 5

µJ

EA OUT Source Current .......................................... 50mA

Oscillator Charge Current ......................................... 2mA

Input Voltage ...................................... GND –0.3V to 5.5V

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

°C

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

°C to 150°C

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

°C

Thermal Resistance (

Plastic DIP ........................................................ 75

°C/W

Plastic SOIC ..................................................... 95

°C/W

OPERATING CONDITIONS

Temperature Range

ML4821CX ................................................. 0

°C to 70°C

ML4821IX .............................................. –40

°C to 85°C

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP.

MAX

UNITS

OSCILLATOR

Initial accuracy

90

100

110

kHz

Voltage stability

1

%

Temperature stability

2%

Total Variation

Line, Temperature

85

115

kHz

Ramp Valley to Peak

4.7

5.2

5.6

V

4.8

5.0

5.2

V

Discharge Current

7.8

8.4

9.3

mA

SYNC Input Threshold

1.5

2.0

3.0

V

REFERENCE

Output Voltage

4.95

5.00

5.05

V

Line regulation

2

10

mV

Load regulation

2

15

mV

Temperature stability

.4

%

Total Variation

line, load, temp

4.9

5.1

V

Output Noise Voltage

10Hz to 10kHz

50

µV

Long Term Stability

5

25

mV

Short Circuit Current

–30

–85

–180

mA

VOLTAGE ERROR AMPLIFIER

Input Offset Voltage

0

–15

mV

Input Bias Current

–50

–800

nA

Open Loop Gain

2 < EA OUT < 6V

60

75

dB

PSRR

70

100

dB

Output Sink Current

EA OUT = 4V, INV = 5.5V

300

500

µA

Output Source Current

EA OUT = 4.0V, INV = 4.8V

–10

–30

mA