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參數(shù)資料
| 型號： | IL494 |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | PWM Control Circuit |
| 中文描述： | PWM控制電路 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 169K |
| 代理商： | IL494 |
IL494
3
ELECTRICAL CHARACTERISTICS
(Temperature -20
～
85
°
C, V
CC
= 15 V, f=10 kHz))
Symbol
Reference Section
Parameter
Test Conditions
Min
Max
Unit
V
ref
V
regin
Output Voltage
I
O
=1 mA
V
CC
=7 V to 40 V, T
A
=25
°
C
I
O
=1 to 10 mA, T
A
=25
°
C
T
A
= -20
°
C to 85
°
C
4.75
5.25
V
Output regulation
25
mV
V
regout
V
ref
Input regulation
15
mV
Output Voltage change with
temperature
1
%
I
SC
Short-circuit output current
(Note 1)
Vref=0
50
mA
Oscillator Section
f
OSC
δ
f
OSC
Frequency
C
T
=0.01
μ
F, R
T
=12 k
All values of V
CC
, C
T
, R
T
, T
A
Constant
6
14
KHz
Standard deviation of
frequency (Note 2)
15
%
δ
f
OSC(
V)
Frequency change with
voltage
V
CC
= 7 V to 40 V,
T
A
=25
°
C
C
T
=0.01
μ
F, R
T
=12 k
T
A
= -20
°
C to 85
°
C
10
%
δ
f
OSC(
T)
Frequency change with
temperature
2
%
Dead Time Control Section
I
IB(2T)
Input bias current (pin 4)
V
I
= 0 to 5.25 V
-10
μ
A
%
DC
max
Maximum duty cycle, each
output
V
I(pin 4)
=0 V
45
V
THD
Input threshold voltage
Zero duty cycle
3.3
V
(pin 4)
Maximum duty cycle
0
Error Amp Section
V
IO
I
IO
I
IB
Input offset voltage
V
O(pin 3)
=2.5 V
V
O(pin 3)
=2.5 V
V
O(pin 3)
=2.5 V
10
mV
Input offset current
250
nA
μ
A
V
Input bias current
1
Common-mode input
V
CC
= 7 V to 40 V
LOW
-0.3
voltage range
HIGH
V
CC
- 2
70
A
vol
Open-loop voltage
amplification
V
O
=3 V, V
O
=0.5 to 3.5 V
dB
f
b
Unity-gain bandwidth
100
kHz
CMRR
Common-mode rejection
ratio
V
CC
=40 V, T
A
=25
°
C
65
dB
I
O
Output sink current (pin 3)
V
ID
=-15 mV to -5 V,
V
O(pin 3)
=0.7 V
V
ID
=15 mV to 5 V,
V
O(pin 3)
=3.5 V
0.3
mA
I
O+
Output source current (pin 3)
-2
mA
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