TDA4700 Datasheet, PDF (16/21 Pages) Siemens Semiconductor Group – Control IC for Single-Ended and Push-Pull Switched-Mode Power Supplies SMPS

TDA 4700
TDA 4718
Characteristics (cont’d)
V_S = 11 to 30 V; T_A = – 25 to 85 °C
Parameter
Symbol
Limit Values
min.
typ. max.
Supply Undervoltage
Turn-ON threshold for V_S
8.8
V_S rising
Turn-OFF threshold V_S
8.5
for V_S falling
Input C_filter
Rated voltage for
rated frequency
V_R
Frequency approx.
proportional to voltage
within the range
Voltage at open
V_R
3
sync input
V_{C filter}
11
10.5
10.5
10
4
5
1.6
Unit Test
Condition
V
0 °C < T_A < 70 °C
V
V
0 °C < T_A < 70 °C
V
V
V
V
Semiconductor Group
16