75185G-R20-R datasheet(4/10 Pages) UTC

Part #	75185G-R20-R

Description	MULTIPLE RS-232 DRIVERS AND RECEIVERS

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Manufacturer	UTC [Unisonic Technologies]

Direct Link	http://www.utc-ic.com

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75185

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 10

www.unisonic.com.tw

QW-R113-003,F

DRIVER ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING

FREE-AIR TEMPERATURE RANGE (VDD=9V, VSS=-9V, VCC=5V, unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

High Level Output Voltage

VOH

VIL =0.8V, RL =3 kΩ (Figure 1)

6

7.5

V

Low Level Output Voltage (Note 3)

VOL

VIH =1.9V, RL =3 kΩ (Figure 1)

-7.5

-6

V

High Level Input Current

IIH

VIN =5V (Figure 2)

10

μA

Low Level Input Current

IIL

VIN =0V (Figure 2)

-1.6

mA

High Level Short Circuit Output Current

(Note 4)

IOS(H)

VIL =0.8V, VOUT =0V(Figure 1)

-4.5

-12 -19.5 mA

Low Level Short Circuit Output Current

IOS(L)

VIH =2V, VOUT =0V(Figure 1)

4.5

12

19.5 mA

Output Resistance (Note 5)

ROUT

VDD =VSS=VCC=0V, VOUT =-2 to 2V 300

Ω

Note 3: The algebraic convention, where the more positive (less negative) limit is designated as maximum, is used in

this datasheet for logic levels only (e.g. if -10V is a maximum, the typical value is a more negative voltage).

Note 4: Output short circuit conditions must maintain the total power dissipation below absolute maximum ratings.

Note 5: Test conditions are those specified by TIA/EIA232-F and as listed above.

DRIVER SWITCHING CHARACTERISTICS (VDD=12V, VSS=-12V, VCC=5V, TA=25°C)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Low to High

tPLH

RL=3 to 7 kΩ, CL=15pF (Figure 3)

315 500

ns

Propagation Delay Time Level

Output

High to Low

tPHL

RL=3 to 7 kΩ, CL=15pF (Figure 3)

75

175

ns

RL=3 to 7 kΩ, CL=15pF (Figure 3)

60

100

ns

Transition Time Level Output

Low to High

tTLH

RL=3 to 7 kΩ, CL=2500pF

(Note 6,Figure 3)

1.7

2.5

μs

RL=3 to 7 kΩ, CL=15pF (Figure 3)

40

75

ns

Transition Time Level Output

High to Low

tTHL

RL=3 to 7 kΩ, CL=2500pF

(Note 7, Figure 3)

1.5

2.5

μs

Note 6: Measured between -3V and 3V points of the output waveform (TIA/EIA-232-F conditions), all unused inputs

are tied.

Note 7: Measured between 3V and -3V points of the output waveform (TIA/EIA-232-F conditions), all unused inputs

are tied.

RECEIVER ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING

CONDITIONS (TA=25°C, VCC=5V, VDD=9V, VSS=-9V)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Positive Going Threshold Voltage

VT+

(Figure 5)

TA=25°C

TA=0°C to 70°C

1.75

1.55

1.9

2.3

V

Negative Going Threshold Voltage

VT-

0.75

0.97

1.25

V

Input Hysteresis (VT+ - VT-)

VHYS

0.5

V

VIH=0.75V

2.6

4

5

High level

VOH

IOH=-0.5mA

Inputs Open

2.6

V

Output Voltage

Low level

VOL

VIN=3V, IOL=10mA

0.2

0.45

V

VIN=25V (Figure 5)

3.6

8.3

High level

IIH

VIN=3V (Figure 5)

0.43

mA

VIN=-25V (Figure 5)

-3.6

-8.3

Input Current

Low level

IIL

VIN=-3V (Figure 5)

-0.43

mA

Short-Circuit Output Current

IOS

(Figure 4)

-3.4

-12

mA

RECEIVER SWITCHING CHARACTERISTICS (VDD=12V, VSS=-12V, VCC=5V, TA=25°C)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Low to High

tPLH

107

500

ns

Propagation Delay Time

Level Output

High to Low

tPHL

42

150

ns

Low to High

tTLH

175

525

ns

Transition Time Level

Output

High to Low

tTHL

RL=5 kΩ, CL=50pF

(Figure 6)

16

60

ns

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