ST TDA2170 User Manual
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TDA2170
TV VERTICAL DEFLECTION OUTPUT CIRCUIT
.The functions incorporated are :
.POWER AMPLIFIER
.FLYBACK GENERATOR
.REFERENCE VOLTAGE THERMAL PROTECTION
DESCRIPTION
The TDA2170 is a monolithic integrated circuit in 11-lead Multiwatt package. It is a high efficiency power booster for direct driving of vertical windings of TV yokes. It is intended for use in Colour are B & W television receivers as well as in monitors and displays.
PIN CONNECTIONS
11
10
9
8
7
6
5
4
3
2
1
Tab connected to Pin 6
MULTIWATT 11
(Plastic Package)
ORDER CODE : TDA2170
NC
GND
REFERENCE VOLTAGE
OUTPUT STAGE SUPPLY
OUTPUT
GND
FLYBACK GENERATOR
SUPPLY VOLTAGE
NON INVERTING INPUT
INVERTING INPUT
NC
2170-01.EPS
December 1992 |
1/7 |
TDA2170
BLOCK DIAGRAM
+VS
4 |
8 |
5 |
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Fly back |
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Generator |
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2 |
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Power |
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7 |
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Amplif ier |
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3 |
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Reference |
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Thermal |
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Volt age |
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Protect ion |
YOKE |
9 |
6 |
10 |
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2170-02.EPS
SCHEMATIC DIAGRAM
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C1 |
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3 |
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Q7 |
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2 |
Q1 |
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Q2 |
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Q6 |
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Q4 |
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Q8 |
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D1 |
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Q5 |
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Q3 |
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R1 |
D2 |
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R2 |
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R3 |
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R12 |
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Q23 |
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Q26 |
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Q24 |
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R14 |
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Z1 |
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R13 |
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Q27Q28 |
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Z2 |
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Q25 |
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R15 |
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R16 |
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R17 |
R18 |
6 |
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10
9
7
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4 |
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D4 |
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Q11 |
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Q12 |
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R12 |
8 |
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Q10 |
D5 |
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D3 |
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R4 |
R5 |
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Q20 |
D9 |
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D8 |
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D6 |
D7 |
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Q21 |
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Q9 |
Q13 |
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5 |
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R6 |
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R11 |
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Q14 |
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Q18 |
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Q15 |
Q17 |
Q22 |
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Q16 |
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Q19 |
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R7 |
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R8 |
R9 |
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C2 |
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Q29
2170-03.EPS
2/7
TDA2170
ABSOLUTE MAXIMUM RATINGS
Symbol |
Parameter |
Value |
Unit |
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Vs |
Supply Voltage (pin 4) |
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35 |
V |
V7, V8 |
Flyback Peak Voltage |
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60 |
V |
V5 |
Voltage at Pin 5 |
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+ Vs |
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V2, V3 |
Amplifier Input Voltage |
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+ Vs ± 0.5 |
V |
Io |
Output Peak Current (non repetitive, t = 2 msec) |
2.5 |
A |
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Io |
Output Peak Current at f = 50 Hz, |
t ≤ 10 μsec |
3 |
A |
Io |
Output Peak Current at f = 50 Hz, |
t > 10 μsec |
2 |
A |
I5 |
Pin 5 DC Current at V7 < V4 |
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100 |
mA |
I5 |
Pin 5 Peak to Peak Flyback Current at f = 50 Hz, tfly ≤ 1.5 msec |
3 |
A |
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Ptot |
Total Power Dissipation at Tcase = 60 °C |
30 |
W |
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Tstg, Tj |
Storage and Junction Temperature |
± 40 to 150 |
°C |
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THERMAL DATA
Symbol |
Parameter |
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Value |
Unit |
Rth (j-c) |
Thermal Resistance Junction-case |
Max |
3 |
°C/W |
Rth (j-a) |
Thermal Resistance Junction±ambient |
Max |
40 |
°C/W |
ELECTRICAL CHARACTERISTICS
(refer to the test circuits, VS = 35 V, Tamb = 25 °C unless otherwise specified)
Symbol |
Parameter |
Test Conditions |
Min. Typ. |
Max. |
Unit |
Fig. |
I4 |
Pin 4 Quiescent Current |
I5 = 0 ; I7 = 0 ; V3 = 3 V |
8 |
16 |
mA |
1a |
I8 |
Pin 8 Quiescent Current |
I5 = 0 ; I7 = 0 ; V3 = 3 V |
16 |
36 |
mA |
1a |
I3 |
Amplifier Input Bias Current |
V3 = 1 V |
± 0.1 |
± 1 |
μA |
1a |
I2 |
Amplifier Input Bias Current |
V2 = 1 V |
± 0.1 |
± 1 |
μA |
1a |
V9 |
Reference Voltage |
I9 = 0 |
2.2 |
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V |
1a |
V9 |
Reference Voltage Drift vs. Supply Voltage |
VS = 15 to 30 V |
1 |
2 |
mV/V |
1a |
VS |
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V5L |
Pin 5 Saturation Voltage to GND |
I5 = 20 mA |
1 |
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V |
1c |
V7 |
Quiescent Output Voltage |
VS = 35 V ; Ra = 13 kΩ |
18 |
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V |
1d |
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VS = 15 V ; Ra = 13 kΩ |
7.5 |
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V |
1d |
V7L |
Output Saturation Voltage to GND |
I7 = 1.2 A |
1 |
1.4 |
V |
1c |
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I7 = 0.7 A |
0.7 |
1 |
V |
1c |
V7H |
Output Saturation Voltage to Supply |
± I7 = 1.2 A |
1.6 |
2.2 |
V |
1b |
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± I7 = 0.7 A |
1.3 |
1.8 |
V |
1b |
R9 |
Reference Voltage Output Resistance |
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2.1 |
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kΩ |
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Tj |
Junction Temperature for Thermal Shut |
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140 |
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°C |
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Down |
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2170-01.TBL
2170-02.TBL
2170-03.TBL
3/7
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