TDA4700A Siemens Semiconductor, TDA4700A Datasheet - Page 12

• Manufacturer Part Number: TDA4700A
• Description: Control IC for Single-Ended and Push-Pull Switched-Mode Power Supplies SMPS
• Manufacturer: Siemens Semiconductor

Operating Range
Parameter
Supply voltage
Ambient temperature
VCO frequency
Ramp generator frequency
Characteristics
V
Parameter
Supply current
Reference
Reference voltage
Reference voltage
change
Reference voltage
change
Reference voltage
change
Temperature
coefficient
Response threshold
of
1)
Semiconductor Group
S
I
At
= 11 to 30 V;
REF
T
A
overcurrent
= 0 to 70 C, this value falls to max. 5 mV
T
TDA 4700
TDA 4718
TDA 4700 A
TDA 4718 A
A
= – 25 to 85 C
Symbol
I
V
TC
I
S
REF
V
V
V
REF
REF
REF
REF
Symbol
V
T
T
f
f
RG
A
A
S
min.
8
2.35
Limit Values
12
min.
10.5
– 25
0
40
40
typ.
2.5
8
15
0.25
10
Limit Values
max.
20
2.65
15
0.4
max.
30
85
70
250 000
250 000
1)
Unit
mA
V
mV
mV
mV
mV/K
mA
Unit
V
Hz
Hz
C
C
Test
Condition
C
f
0 mA <
14 V
25 V
0 mA <
VCO
Test
Condition
T
= 1 nF
TDA 4700
TDA 4718
= 100 kHz
I
I
REF
REF
20 %
20 %
< 5 mA
< 5 mA