參數(shù)資料
型號: R1225N372C-TR
英文描述: SMPS Controller
中文描述: 開關電源控制器
文件頁數(shù): 4/29頁
文件大小: 450K
代理商: R1225N372C-TR
12345
Rev. 1.11 - 4 -
I
ELECTRICAL CHARACTERISTICS
G
R1225Nxx2X (X=A/B/C/D/J/K)
Symbol
V
IN
Operating Input Voltage
V
OUT
Step-down Output Voltage
(Topt=25
°
C)
Conditions
Item
Min.
2.3
V
SET
×
0.98
Typ.
Max.
18.5
V
SET
×
1.02
Unit
V
V
V
IN
=V
CE
+V
SET
+1.5V, I
OUT
=-100mA
When V
SET
1.5V, V
IN
=V
CE
=3.0V
-40
°
C
Topt
85
°
C
V
SET
V
OUT
/
T
fosc
Step-down Output Voltage
Temperature Coefficient
Oscillator Frequency
±
100
ppm
/
°
C
kHz
V
IN
=V
CE=
V
SET
+1.5V, I
OUT
=-100mA
When V
SET
1.5V, V
IN
=V
CE
=3.0V
J/K version
A/C version
B/D version
-40
°
C
Topt
85
°
C
144
240
400
180
300
500
±
0.2
216
360
600
f
OSC
/
T
I
DD1
Oscillator Frequency
Temperature Coefficient
Supply Current1
%
/
°
C
μ
A
V
IN
=V
CE
=V
OUT
=18.5V
A/B/J/K version
C version
D version
V
IN
=18.5V, V
CE
=0V, V
OUT
=0V
V
IN
=8V,V
EXT
=7.9V,V
OUT
=8V,V
CE
=8V
V
IN
=8V,V
EXT
=0.1V,V
OUT
=0V,V
CE
=8V
V
IN
=2.3V, V
CE
=0V, V
DLY
=0.1V
V
IN
=V
CE
=V
OUT
=18.5V
V
IN
=V
OUT
=18.5V, V
CE
=0V
V
IN
=8V,V
OUT
=0V
V
IN
=8V,V
OUT
=0V
20
30
40
0.0
-17
30
2.0
0.0
0.0
50
60
80
0.5
-10
I
stb
I
EXTH
I
EXTL
I
SW
I
CEH
I
CEL
V
CEH
V
CEL
Maxdty Oscillator Maximum Duty Cycle
VFMdty VFM Duty Cycle
V
UVLO1
UVLO Voltage
V
UVLO2
UVLO Release Voltage
Standby Current
EXT "H" Output Current
EXT "L" Output Current
DLY switch current
CE "H" Input Current
CE "L" Input Current
CE "H" Input Voltage
CE "L" Input Voltage
μ
A
mA
mA
mA
μ
A
μ
A
V
V
%
%
V
V
20
1.0
0.5
-0.5
1.5
0.3
100
A/B/J version
V
IN
=V
CE
=2.5V to 1.5V, V
OUT
=0V
V
IN
=V
CE
=1.5V to 2.5V, V
OUT
=0V
35
2.0
1.8
2.2
2.3
V
UVLO
1
+0.1
10
T
start
Delay Time by Soft-Start function
V
IN
=V
SET
+1.5V, I
OUT
=-10mA
V
CE
=0V->V
SET
+1.5V
V
IN
=V
CE
=V
SET
+1.5V
V
OUT
=V
SET
+1.5V->0V
5
20
ms
T
prot
Delay Time for protection circuit
10
20
35
ms
相關PDF資料
PDF描述
R1225N372D-TR SMPS Controller
R1225N372J-TR SMPS Controller
R1225N372K-TR SMPS Controller
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