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參數(shù)資料
| 型號(hào)： | TDA4700A |
| 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, PDIP24 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 436K |
| 代理商： | TDA4700A |
TDA 4700
TDA 4718
Semiconductor Group
12
Operating Range
Parameter
Symbol
Limit Values
Unit
Test
Condition
min.
max.
Supply voltage
V
S
10.5
30
V
Ambient temperature
TDA 4700
TDA 4718
TDA 4700 A
TDA 4718 A
T
A
T
A
– 25
0
85
70
°
C
°
C
VCO frequency
Ramp generator frequency
f
f
RG
40
40
250 000
250 000
Hz
Hz
Characteristics
V
S
= 11 to 30 V;
T
A
= – 25 to 85
°
C
Parameter
Symbol
Limit Values
Unit
Test
Condition
min.
typ.
max.
Supply current
I
S
8
20
mA
C
T
= 1 nF
f
VCO
= 100 kHz
Reference
Reference voltage
Reference voltage
change
Reference voltage
change
Reference voltage
change
Temperature
coefficient
Response threshold
of
I
REF
overcurrent
V
REF
V
REF
V
REF
V
REF
TC
I
REF
2.35
2.5
8
15
0.25
10
2.65
15
1)
0.4
V
mV
mV
mV
mV/K
mA
0mA <
I
REF
< 5 mA
14 V
±
20 %
25 V
±
20 %
0mA <
I
REF
< 5 mA
1)
At
T
A
= 0 to 70
°
C, this value falls to max. 5 mV
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