HWD490 データシートの表示（PDF） - Unspecified

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HWD490

Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers

Unspecified 

Low-Power, Slew-Rate-Limited

RS-485/RS-422 Transceivers

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCC) .............................................................12V

Control Input Voltage (RE, DE)...................-0.5V to (VCC + 0.5V)

Driver Input Voltage (DI).............................-0.5V to (VCC + 0.5V)

Driver Output Voltage (A, B)...................................-8V to +12.5V

Receiver Input Voltage (A, B).................................-8V to +12.5V

Receiver Output Voltage (RO).....................-0.5V to (VCC +0.5V)

Continuous Power Dissipation (TA = +70°C)

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW

14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW

8-Pin SO (derate 5.88mW/°C above +70°C).................471mW

14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW

8-Pin µMAX (derate 4.1mW/°C above +70°C) ..............830mW

8-Pin CERDIP (derate 8.00mW/°C above +70°C).........640mW

14-Pin CERDIP (derate 9.09mW/°C above +70°C).......727mW

Operating Temperature Ranges

HWD4_ _C_ _/HWD1487C_ A ...............................0°C to +70°C

HWD4_ _E_ _/HWD1487E_ A .............................-40°C to +85°C

HWD4_ _MJ_/HWD1487MJA ...........................-55°C to +125°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10sec) .............................+300°C

DC ELECTRICAL CHARACTERISTICS

(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)

PARAMETER

SYMBOL

Differential Driver Output (no load) VOD1

Differential Driver Output

(with load)

VOD2

Change in Magnitude of Driver

Differential Output Voltage for

Complementary Output States

Driver Common-Mode Output

Voltage

Change in Magnitude of Driver

Common-Mode Output Voltage

for Complementary Output States

∆VOD

VOC

∆VOD

Input High Voltage

VIH

Input Low Voltage

VIL

Input Current

IIN1

Input Current

(A, B)

IIN2

Receiver Differential Threshold

Voltage

Receiver Input Hysteresis

Receiver Output High Voltage

Receiver Output Low Voltage

Three-State (high impedance)

Output Current at Receiver

VTH

∆VTH

VOH

VOL

IOZR

CONDITIONS

R = 50Ω (RS-422)

R = 27Ω (RS-485), Figure 4

R = 27Ω or 50Ω, Figure 4

R = 27Ω or 50Ω, Figure 4

R = 27Ω or 50Ω, Figure 4

DE, DI, RE

DE, DI, RE

DE, DI, RE

DE = 0V;

VCC = 0V or 5.25V,

all devices except

HWD487/HWD1487

HWD487/HWD1487,

DE = 0V, VCC = 0V or 5.25V

-7V ≤ VCM ≤ 12V

VCM = 0V

IO = -4mA, VID = 200mV

IO = 4mA, VID = -200mV

VIN = 12V

VIN = -7V

VIN = 12V

VIN = -7V

0.4V ≤ VO ≤ 2.4V

Receiver Input Resistance

-7V ≤ VCM ≤ 12V, all devices except

HWD487/HWD1487

RIN

-7V ≤ VCM ≤ 12V, HWD487/HWD1487

2

MIN TYP MAX UNITS

5

V

2

V

1.5

5

0.2

V

3

V

0.2

V

2.0

V

0.8

V

±2

µA

1.0

mA

-0.8

0.25

mA

-0.2

-0.2

0.2

V

70

mV

3.5

V

0.4

V

±1

µA

12

kΩ

48

kΩ

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