參數(shù)資料
型號(hào)： IR1110
廠商： International Rectifier
英文描述： SOFT START CONTROLLER IC
中文描述： 軟起動(dòng)控制器芯片
文件頁(yè)數(shù)： 8/32頁(yè)
文件大?。?/td> 227K
代理商： IR1110
8
IR1110
ADVANCE INFORMATION
www.irf.com
Notes for System Operating Characteristics
Note 6)
Step change of V
BREF
may result in excessive bus capacitor charging current. Rate of change of V
BREF
should
be decreased in order to limit bus capacitor charging current for practical application.
Note 7)
Time to ramp up to 99.8% DC bus level at a power up. It does not include the power up delay time. The practical
limitation of the minimum time (50msec) depends on the inrush current to the DC bus capacitor. Ramp time is
proportional to C
RAMP
.
Note 8)
Time to ramp back to 99.8% DC bus level from 50% DC bus level at a momentary power dip. This does not
include the delay time to start ramp-up (t
DDIP
)
Note 9)
The value depends on C
UVLCK
Note 10)
The value depends on C
RAMP
, R
PK
, R
RAMP
Note 11)
The value depends on C
RAMP
Note 12)
See operation description - Ramp Circuit
Note 13)
Firing angle defined with respect to fully off (zero output voltage) firing angle.
Note 14)
Firing angle defined with respect to zero delay.
td
1FIRE
First SCR firing angle at ramp-up
—
20
32
°
CRAMP=1
μ
F,
R
RAMP
= 82k
(Note 10)
CRAMP=2.2
μ
F,
R
RAMP
= 47k
(Note 10)
CRAMP=3.3
μ
F,
R
RAMP
= 30k
(Notes10,12, 13)
16
25
°
14
22
°
RLIM
FIRE
Rate of advance of firing angle from last max firing
angle during ramp-up
—-
10
20° CRAMP = 1
μ
F,
R
RAMP
= 82k
CRAMP=3.3
μ
F,
R
RAMP
= 30k
(Notes 11 and 13)
7
14
System Operating Characteristics and Specifications
All peripheral component values are those listed in the recommended operating condition unless otherwise specified.
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