TDA1675A
BLOCK DIAGRAM
+VS
+
BLANKING
OUT
13
14
2
+
C
f
BLANK
GENERATOR
AND CRT
15
VOLTAGE
REGULATOR
FLYBACK
GENERATOR
PROTECTION
6
11
1
R
o
R3
+
RAMP
GENERATOR
CLOCK
PULSE
Ly
Ry
Iy
OSCILLATOR
4
POWER
AMP.
C
o
-
3
R1
R2
R
e
12
BUFFER
STAGE
THERMAL
PROTECTION
SYNC.
7
R
a
SYNC.
+
R
c
7
9
10
8
Rb
+
C
c
C
a
LIN
R
f
R
HEIGHT
d
C b
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
35
Unit
V
VS
V1, V2
V5
Supply Voltage at Pin 14
Flyback Peak Voltage
Sync. Input Voltage
65
V
20
V
V11, V12
V13
Power Amplifier Input Voltage
Voltage at Pin 13
VS - 10
VS
V
IO
Output Current (non repetitive) at t = 2ms
3
A
A
IO
Output Peak Current at f = 50Hz t > 10µs
Output Peak Current at f = 50Hz t ≤ 10 µs
2
IO
3.5
3
A
I15
Pin 15 Peak-to-peak Flyback Current at f = 50Hz, tfly ≤ 1.5ms
Pin 15 D.C. Current at V1 < V14
Maximum Power Dissipation at Tcase ≤ 60oC
A
I15
100
30
mA
W
oC
Ptot
Tstg, Tj
Storage and Junction Temperature
- 40, + 150
THERMAL DATA
Symbol
Parameter
Value
3
Unit
oC/W
oC/W
Thermal Resistance Junction-case
RTH(j-c)
RTH(j-a)
Max.
Max.
Thermal Resistance Junction-ambient
40
2/11
STMICROELECTRONICS [ ST ]
