TDA4714C Datasheet, PDF (10/17 Pages) Siemens Semiconductor Group – IC for Switched-Mode Power Supplies (SMPS)

TDA 4714 C
TDA 4716 C
Characteristics
11 V < V_S < 30 V; – 25 °C < T_A < 85 °C
Parameter
Symbol
Limit Values
min.
typ. max.
Supply current
C_T = 1 nF
f_VCO = 100 kHz
Reference
I_S
8
20
Reference voltage, T_A = 25 °C
I_REF = 1 mA, V_S = 12 V
Voltage change
V_S = 14 V ± 20 %
Voltage change
V_S = 25 V ± 20 %
Voltage change¹⁾
0 mA < I_REF < 5 mA
Temperature coefficient
Response threshold
of I_REF overcurrent
Oscillator (VCO)
V_REF
∆V_REF
∆V_REF
∆V_REF
TC
I_REF
2.475
2.500 2.525
8
15
15
0.25 0.4
10
Frequency range
Frequency change
V_S = 14 V ± 20 %
Frequency change
V_S = 25 V ± 20 %
Tolerance
∆R_T = 0; ∆C_T = 0
Fall time sawtooth
C_T = 1 nF
C_T = 10 nF
RC combination
VCO
f
40
∆f/f
∆f/f
–1
∆f/f
–7
C_T
0.82
R_T
5
100
0.5
1
7
1
10
47
700
1) _{Between 0 °C and 70 °C ambient temp. ∆VREF is reduced to max. 5 mV.}
Unit
mA
V
mV
mV
mV
mV/K
mA
kHz
%
%
%
µs
µs
nF
kΩ
Semiconductor Group
10