TDA1675 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA1675 Datasheet PDF : 11 Pages
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TDA1675A
AC ELECTRICAL CHARACTERISTICS
(Refer to A.C. test circuit of fig. 2, Tamb = 25oC, VS = 24V, f = 50Hz, unless otherwise specified)
Symbol
IS
I5
V1
V3
V10TH(L)
tFLY
tBLANK
Parameter
Supply Current
Sync Input Current Required to Sync
Flyback Voltage
Peak-to-peak Oscillator Sawtooth
Voltage
Start Scan Level of the Input Ramp
Flyback Time
Blanking Pulse Duration
fo
Free Running Frequency
∆f
Synchronization Range
Tj
Junction Temperature for Thermal
Shut-down
VON Peak-to-peak Output Noise
Test conditions
IY = 2APP
Iy = 2App
I5 = 0
I5 = 100µA
Iy = 2App
fo
fo
=
=
50Hz,
60Hz,
Tj
Tj
=
=
75oC
75oC
Ro
Ro
=
=
7.5kΩ,
6.2kΩ,
Co
Co
=
=
330nF,
330nF,
Tj
Tj
=
=
75oC
75oC
I5 = 100µA, Tj = 75oC
Min. Typ. Max. Unit
295
mA
100
µA
50
V
3.6
V
3.4
V
1.85
V
0.6
ms
1.33 1.4 1.47 ms
1.17
ms
42 43.5 46 Hz
52.5
Hz
14 16
Hz
145
oC
35 mVPP
Figure 2 : AC Test Circuit
t blank
+V S
2.4kΩ
BLANKING
OUT
13
100µA
SYNC. IN
5
t sync.
6
4.7kΩ
(FREQ.)
tblank
1/fo
A S1 (Ro)
B
4
Co
37
V3
SERVICE
SWITCH S2
220kΩ
HEIGHT
1N4001 220µF
t f Iy
14
2
15
GND
1/fo
1
TDA 1675A
9
11
10
0.1µF
56kΩ
0.1µF
100kΩ
12
8
1/fo
LINEARITY
0.1µF
GND
0.22µF
2.4kΩ
47µF
V10
V10thL
V1
YOKE
10mH
IY
2200µF
1/fo
Rf
Rf Iy
4/11
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