UCC5620 datasheet(3/4 Pages) TI

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UCC5620

ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for TA = 0°C to 70°C, TRMPWR

= 4.75V, DISCNCT = 0V, TA =TJ.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Output Section (Termination Lines)

Termination Impedance

(Note 3)

104.5

110

115.5

Ω

Output High Voltage

(Note 1)

2.6

2.8

3.0

Max Output Current

VLINE = 0.2V, TJ = 25°C

−22.1 −23.3

−24

VLINE = 0.2V

−20.7 −23.3

−24

VLINE = 0.2V, TRMPWR = 4V, TJ = 25°C (Note 1)

−21

−23

−24

VLINE = 0.2V, TRMPWR = 4V (Note 1)

−20

−23

−24

VLINE = 0.5V

−22.4

Output Leakage

DISCNCT = 2.4V, TRMPWR = 0V to 5.25V

400

Output Capacitance

DISCNCT = 2.4V (Note 2)

2.5

Regulator Section

Regulator Output Voltage

2.6

2.8

3.0

Drop Out Voltage

All Termination Lines = 0.2V

0.4

0.8

Short Circuit Current

VREG = 0V

−650

−900 –1300

Sinking Current Capability

VREG = 3.5V

300

500

900

Thermal Shutdown

170

C°

Thermal Shutdown Hysteresis

C°

Disconnect Section

Disconnect Threshold

0.8

1.5

2.0

Input Current

DISCNCT = 0V

–20

–60

µA

Note 1:Measuring each termination line while other 26 are low (0.2V).

Note 2:Guaranteed by design. Not 100% tested in production.

Note 3:Tested by measuring IOUT with VOUT = 0.2V and VOUT with no load, then calculate:

()

VN L

Iat

OUT

−

PIN DESCRIPTIONS

DISCNCT: Taking this pin high or leaving it open causes

all channels to become high impedance, and the chip to

go into low-power mode; a low state allows the channels

to provide normal termination.

GND: Ground reference for the IC.

LINE1 - LINE27: 110

Ω termination channels.

REG: Output of the internal 2.7V regulator.

TRMPWR: Power for the IC.

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