Datasheet

SN55451B, SN55452B, SN55453B, SN55454B
SN75451B, SN75452B, SN75453B, SN75454B
DUAL PERIPHERAL DRIVERS
SLRS021B – DECEMBER 1976 – REVISED SEPTEMBER 1999
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
SN55’ SN75’ UNIT
Supply voltage, V
CC
(see Note 1) 7 7 V
Input voltage, V
I
5.5 5.5 V
Inter-emitter voltage (see Note 2) 5.5 5.5 V
Off-state output voltage, V
O
30 30 V
Continuous collector or output current, I
OK
(see Note 3) 400 400 mA
Peak collector or output current, I
I
(t
w
≤ 10 ms, duty cycle ≤ 50%, see Note 4) 500 500 mA
Continuous total power dissipation See Dissipation Rating Table
Operating free-air temperature range, T
A
–55 to 125 0 to 70 °C
Storage temperature range, T
stg
–65 to 150 –65 to 150 °C
Case temperature for 60 seconds FK package 260 °C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds JG package 300 °C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds D or P package 260 °C
NOTES: 1. Voltage values are with respect to network GND, unless otherwise specified.
2. This is the voltage between two emitters of a multiple-emitter transistor.
3. This value applies when the base-emitter resistance (R
BE
) is equal to or less than 500 Ω.
4. Both halves of these dual circuits may conduct rated current simultaneously; however, power dissipation averaged over a short time
interval must fall within the continuous dissipation rating.
DISSIPATION RATING TABLE
PACKAGE
T
A
≤ 25°C DERATING FACTOR T
A
= 70°C T
A
= 125°C
PACKAGE
A
POWER RATING ABOVE T
A
= 25°C
A
POWER RATING
A
POWER RATING
D 725 mW 5.8 mW/°C 464 mW —
FK 1375 mW 11.0 mW/°C 880 mW 275 mW
JG 1050 mW 8.4 mW/°C 672 mW 210 mW
P 1000 mW 8.0 mW/°C 640 mW —
recommended operating conditions
SN55’ SN75’
UNIT
MIN NOM MAX MIN NOM MAX
UNIT
Supply voltage, V
CC
4.5 5 5.5 4.75 5 5.25 V
High-level input voltage, V
IH
2 2 V
Low-level input voltage, V
IL
0.8 0.8 V
Operating free-air temperature, T
A
–55 125 0 70 °C