参数资料
型号: R1224N202L-TR
英文描述: Analog IC
中文描述: 模拟IC
文件页数: 4/36页
文件大小: 503K
代理商: R1224N202L-TR
12345
Rev. 1.12 - 4 -
I
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
EXT
V
CE
V
OUT
/(V
FB
)
I
EXT
P
D
Topt
Tstg
(GND=0V)
Unit
Item
Rating
20
-0.3
V
IN
+0.3
-0.3
V
IN
+0.3
-0.3
V
IN
+0.3
±
50
250
-40
+85
-55
+125
V
IN
Supply Voltage
EXT Pin Output Voltage
CE Pin Input Voltage
V
OUT
/V
FB
Pin Input Voltage
EXT Pin Inductor Drive Output Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
V
V
V
V
mA
mW
°
C
°
C
I
ELECTRICAL CHARACTERISTICS
G
R1224Nxx2X (X=E/F/G/H/L/M) except R1224N102X (Topt=25
°
C)
Symbol
Item
V
IN
Operating Input Voltage
V
OUT
Step-down Output Voltage
V
IN
=V
CE=
V
SET
+1.5V, I
OUT
=-100mA
When V
SET
1.5V, V
IN
=V
CE
=3.0V
V
OUT
/
T
Temperature Coefficient
fosc
Oscillator Frequency
V
IN
=V
CE
=V
SET
+1.5V, I
OUT
=-100mA
When V
SET
1.5, V
IN
=V
CE
=3.0V
L/M version
E/G version
F/H version
f
OSC
/
T
Temperature Coefficient
I
DD1
Supply Current1
V
IN
=V
CE
=V
OUT
=18.5V
E/F/L/M version
G version
H version
I
stb
Standby Current
V
IN
=18.5V, V
CE
=0V, V
OUT
=0V
I
EXTH
EXT "H" Output Current
V
IN
=8V,V
EXT
=7.9V,V
OUT
=8V,V
CE
=8V
I
EXTL
EXT "L" Output Current
V
IN
=8V,V
EXT
=0.1V,V
OUT
=0V,V
CE
=8V
I
CEH
CE "H" Input Current
V
IN
=V
CE
=V
OUT
=18.5V
I
CEL
CE "L" Input Current
V
IN
= V
OUT
=18.5V, V
CE
=0V
V
CEH
CE "H" Input Voltage
V
IN
=8V,V
OUT
=0V
V
CEL
CE "L" Input Voltage
V
IN
=8V,V
OUT
=0V
Maxdty Oscillator Maximum Duty Cycle
VFMdty VFM Duty Cycle
E/F/L version
V
UVLO1
UVLO Voltage
V
IN
=V
CE
=2.5V to 1.5V, V
OUT
=0V
V
UVLO2
UVLO Release Voltage
V
IN
=V
CE
=1.5V to 2.5V, V
OUT
=0V
Conditions
Min.
2.3
V
SET
×
0.98
Typ.
Max.
18.5
V
SET
×
1.02
Unit
V
V
V
SET
Step-down Output Voltage
-40
°
C
Topt
85
°
C
±
100
ppm
/
°
C
kHz
144
240
400
180
300
500
±
0.2
216
360
600
Oscillator Frequency
-40
°
C
Topt
85
°
C
%
/
°
C
μ
A
20
30
40
0.0
-17
30
0.0
0.0
50
60
80
0.5
-10
μ
A
mA
mA
μ
A
μ
A
V
V
%
%
V
V
20
0.5
-0.5
1.5
0.3
100
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
5
15
30
ms
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