ML4644 datasheet(4/11 Pages) MICRO-LINEAR

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ML4644

ABSOLUTE MAXIMUM RATINGS

Absolute maximum ratings are limits beyond which the

life of the integrated circuit may be impaired. All voltages

unless otherwise specified are measured with respect to

ground.

Power Supply Voltage Range VCC . . . GND –0.3 to +6.0V

Input Current RRSET, All LED Driver Pins . . . . . . . 60mA

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150°C

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

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

Thermal Resistance (

qJA) . . . . . . . . . . . . . . . . . . . 44°C/W

OPERATING CONDITIONS

Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . 5V ± 10%

RRSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.9ký ± 1%

ELECTRICAL CHARACTERISTICS

Unless otherwise specified TA = 0°C to 70°C, VCC = 5V ± 10%. (Notes 1, 2)

PARAMETER

CONDITIONS

MIN

TYP.

MAX

UNITS

Power Supply Current ICC (Note 3)

VCC = 5V

150

190

LED Drivers: VOL

RL=510ý (Note 4)

0.8

Transmit Squelch Voltage Level (Tx+, Tx–)

–300

–250

–200

Differential Output Voltage

±550

±1200

Common Mode Output Voltage

4.0

Differential Output Voltage Imbalance

±40

Loopback Enable

REC tied low

0.3

Note 1: Limits are guaranteed by 100% testing , sampling, or correlation with worst-case test conditions.

Note 2: Low Duty cycle pulse testing is performed at TA.

Note 3: This does not include the current from the AUI pull down resistors or the LED output pins.

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