TDA8174 Datasheet, PDF (2/5 Pages) STMicroelectronics – VERTICAL DEFLECTION CIRCUIT

TDA8174 - TDA8174W
BLOCK DIAGRAM
10
TDA81 74
VOLTAGE
R EGULATOR
2
FLYBACK
GENERATOR
11
R3
TRIG-IN
3
RAMP
CLOCK _{P OWER}
GENERATOR
PULSE _AMP.
1
BUFFER
S TAGE
THERMAL
P ROTECTION
4
7
8
9
6
ABSOLUTE MAXIMUM RATINGS
Symbol
V_S
V1, V2
V₃
V₉
I0
I0
I₁₁
I₁₁
Ptot
T_stg
T_j
Ta mb
Parameter
Supply Voltage
Flyback Peak Voltage
Trigger Input Voltage
Amplifier Input Voltage
Output Peak-to-peak Current (non repetitive t = 2ms)
Output Peak-to-peak Current t > 10µs
Pin 11 DC Current at V₁ < V₁₀
Pin 11 Peak-to-peak Current @ t_fly < 1.5ms
Total Power Dissipation @ Ttab = 60°C
Storage Temperature
Junction Temperature
Ambient Temperature
Value
Unit
35
V
65
V
20
V
GND, V_S
V
6
A
4
A
100
mA
3
A
30
W
– 40, +150
°C
0, +150
°C
0, +70
°C
THERMAL DATA
Symbol
Rth (j-tab)
Rth (j-a)
Parameter
Thermal Resistance Junction-tab
Thermal Resistance Junction-ambient
Max.
Max.
Value
3
40
Unit
°C/W
°C/W
DC ELECTRICAL CHARACTERISTICS (VS = 35V ; Tamb = 25^oC unless otherwise specified)
Symbol
I2
I₁₀
–I7
–I7
dI₇/I₇
V1
Parameter
Pin 2 Quiescent Current
Pin 10 Quiescent Current
Ramp Generator Bias Current
Ramp Generator Current
Ramp Generator Linearity
Quiescent Output Voltage
V_1L Out Saturation Voltage to GND
V1H Out Saturation Voltage to Vs
Test Conditions
I1 = 0, I11 = 0
I₁ = 0, I₁₁ = 0
V7 = 0
V7 = 0, –I4 = 20µA
V₆ = 0 to 15V, –I₄ = 20µA
Ra = 30kΩ, Rb = 10kΩ, Vs = 35V
R_a = 6.8kΩ, R_b = 10kΩ, V_s = 15V
I₁ = 0.5A
I1 = 1.2A
–I1 = 0.5A
–I₁ = 1.2A
Min. Typ. Max. Unit
16 36 mA
15 30 mA
0.5 µA
18.5 20 21.5 µA
0.2 1
%
17.0 17.8 18.6 V
7.2 7.5 7.8
V
0.5 1
V
1 1.4
V
1.1 1.6
V
1.6 2.2
V
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