SL494

System Logic

Semiconductor

SLS

∼ 85°C, V

Symbol

Parameter

Test Conditions

Min

Max

Unit

PWM Comparator Section

Input threshold voltage

(pin 3)

Zero duty cycle

4.5

V

Input sink current (pin 3)

0.3

mA

Switching Characteristics

Output voltage rise time

Common-emitter configuration

200

ns

Output voltage fall time

Common-emitter configuration

100

ns

Output voltage rise time

Emitter-follower configuration

200

ns

Output voltage fall time

Emitter-follower configuration

100

ns

Output Section

Collector off-state current

100

µA

Emitter off-state current

-100

µA

Collector-

emitter

Common-

emitter

1.3

V

saturation

voltage

Emitter-

follower

2.5

Output control input current

3.5

mA

Total Device

Standby supply current

All other inputs &

10

mA

outputs open

15

Average supply current

17

mA

Notes: 1. Duration of the short circuit should not exceed one second.

2. Standard deviation is a measure of the statistical disribution about the mean as derived from the formula

N

2

n=1

σ =

N - 1