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參數(shù)資料
| 型號： | TDA4718A |
| 廠商： | SIEMENS A G |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Control IC for Single-Ended and Push-Pull Switched-Mode Power Supplies SMPS |
| 中文描述： | 0.07 A SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDIP18 |
| 文件頁數(shù)： | 14/21頁 |
| 文件大小： | 436K |
| 代理商： | TDA4718A |
TDA 4700
TDA 4718
Semiconductor Group
14
Comparator K2
Input current
Turn-OFF delay
1)
Input voltage
Common-mode input
voltage range
–
I
I K2
t
D OFF
V
I K2
V
I C
0
1.8
5
2
500
5.5
μ
A
ns
V
V
V
for duty cycle
D
= 0
D
= max.
Soft Start K3, K4
Charge current for
C
soft start
Discharge current for
C
soft start
Upper limiting voltage
Switching voltage K4
I
ch
I
dch
V
lim
V
K4
6
2
5
1.5
μ
A
μ
A
V
V
Operational Amplifier K1 (TDA 4700; TDA 4700 A)
Open-loop voltage
gain
Input offset voltage
Temperature
coefficient of
V
IO
Input current
Common-mode input
voltage range
Output current
Rise time of output
voltage
Transition frequency
Phase at
f
T
Output voltage
G
V0
V
IO
TC
–
I
I
V
IC
I
Q
V
/
t
f
T
T
V
Q H/L
60
– 10
– 30
0
– 3
1.5
80
1
3
120
10
30
2
5
1.5
5.5
dB
mV
μ
V/K
μ
A
V
mA
V/
μ
s
MHz
deg.
V
–3mA <
I
<1.5mA
1)
At the input: step function
V
= – 100 mV
V
= + 100 mV
Characteristics
(cont’d)
V
S
= 11 to 30 V;
T
A
= – 25 to 85
°
C
Parameter
Symbol
Limit Values
Unit
Test
Condition
min.
typ.
max.
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