Philips Semiconductors
Control circuit for switched-mode power supply
Product specification
TEA1039
CHARACTERISTICS
VCC = 14 V; Tamb = 25 °C unless otherwise specified
Supply VCC (pin 9)
Supply voltage, operating
Supply current
at VCC = 11 V
at VCC = 20 V
variation with temperature
Supply voltage, internally limited
at ICC = 30 mA
variation with temperature
Low supply threshold voltage
variation with temperature
High supply threshold voltage
variation with temperature
Feedback input FB (pin 3)
Input voltage for duty factor = 0;
M input open
Internal reference current
Internal resistor Rg
Limit setting input LIM (pin 2)
Threshold voltage
Internal reference current
Overcurrent protection input CM (pin 1)
Threshold voltage
variation with temperature
Propagation delay, CM input to output
SYMBOL
MIN.
TYP.
MAX. UNIT
VCC
11
ICC
−
ICC
−
-∆---I--C---∆-C---T-⁄---I--C---C--
−
VCC
∆VCC/∆T
VCCmin
∆VCC/∆T
VCCmax
∆VCC/∆T
23,5
−
9
−
21
−
14
7,5
9
−0,3
−
18
10
−5
23
10
20
V
11
mA
12
mA
−
%/K
28,5
V
−
mV/K
11
V
−
mV/K
24,6
V
−
mV/K
V3-7
0
−IFB
−
Rg
−
V2-7
−
−ILIM
−
V1-7
300
∆V1-7/∆T
−
tPHL
−
−
0,3
0,5IRX
−
130
−
1
−
0,25IRX −
370
420
0,2
−
500
−
V
mA
kΩ
V
mA
mV
mV/K
ns
August 1982
7