SL494 Просмотр технического описания (PDF) - System Logic Semiconductor

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производитель

SL494

PWM Control Circuit

System Logic Semiconductor 

SL494

ELECTRICAL CHARACTERISTICS(Temperature -20 ∼ 85°C, VCC = 15 V, f=10 kHz))

Symbol

Parameter

Test Conditions

Min

Max Unit

PWM Comparator Section

VTHP Input threshold voltage

(pin 3)

Zero duty cycle

4.5

V

II

Input sink current (pin 3)

Switching Characteristics

VO(pin 3)=0.7 V

0.3

mA

trc

Output voltage rise time

tfc

Output voltage fall time

trf

Output voltage rise time

tff

Output voltage fall time

Output Section

Common-emitter configuration

Common-emitter configuration

Emitter-follower configuration

Emitter-follower configuration

200

ns

100

ns

200

ns

100

ns

IC(off)

IE(off)

VSAT

Collector off-state current

Emitter off-state current

Collector-

emitter

Common-

emitter

VCE=40 V, VCC=40 V

VCC=VC=40 V, VE=0

VE=0, IC=200 mA

100

µA

-100

µA

1.3

V

saturation Emitter-

VC=15 V, IE=-200 mA

2.5

voltage

follower

IOCH

Output control input current VI=Vref

Total Device

3.5

mA

ICC

Standby supply current

All other inputs & VCC=15 V

10

mA

outputs open

VCC=40 V

15

ICCA Average supply current

V(pin 4)=2 V

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

∑ (xn - x)2

n=1

σ=

N-1

SLS

System Logic

Semiconductor

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