TDA4714C Datasheet, PDF (11/17 Pages) Siemens Semiconductor Group – IC for Switched-Mode Power Supplies (SMPS)

TDA 4714 C
TDA 4716 C
Characteristics (cont’d)
11 V < V_S < 30 V; – 25 °C < T_A < 85 °C
Parameter
Symbol
Limit Values
min.
typ. max.
Ramp Generator
Frequency range
Maximum voltage at C_R
Minimum voltage at C_R
Input current through R_R
Current transformation ratio
Comparator K2
f_RG
40
V_H
V_L
I_RR
0
I_RR/I_CR
100
5.5
1.8
400
1/4
Input current
Turn-OFF delay time¹⁾
Input voltage
Duty cycle D = 0
– I_K2
t_{D OFF}
V_{I K2}
D = max
Common-mode input voltage range V_IC
0
Soft Start K3, K4
2
500
1.8
5
5.5
Charge current for C_{soft start}
I_ch
6
Discharge current for C_{soft start}
I_dch
2
Upper limiting voltage
V_lim
5
Switching voltage K4
V_K4
1.5
Operational Amplifier (TDA 4716 C)
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 of f_T
Output voltage
– 3 mA < I < 1.5 mA
G_V0
V_IO
TC
– I_I
V_IC
I_Q
∆V/∆t
f_T
ϕ_T
V_{Q H/L}
60
– 10
– 30
0
–3
1.5
80
10
30
2
5
1.5
1
3
120
5.5
1) _{At the input: step function ∆V = – 100 mV ∆V = + 100 mV}
Semiconductor Group
11
Unit
kHz
V
V
µA
µA
ns
V
V
V
µA
µA
V
V
dB
mV
µV/K
µA
V
mA
V/µs
MHz
degr.
V