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ST Microelectronics
ST Microelectronics

STV8172A Datasheet

Vertical Deflection Booster for 3-APPTV/Monitor Applications


STV8172A Datasheet Preview


® STV8172A
Vertical Deflection Booster
for 3-APPTV/Monitor Applications with 70-V Flyback Generator
Main Features
DATASHEET
Power Amplifier
Flyback Generator
Stand-by Control
Output Current up to 3 App
Thermal Protection
HEPTAWATT
(Plastic Package)
ORDER CODE: STV8172A
Description
The STV8172A is a vertical deflection booster
designed for TV and monitor applications.
This device, supplied with up to 35 V, provides up to
3 App output current to drive the vertical deflection
yoke.
The internal flyback generator delivers flyback
voltages up to 75 V.
In double-supply applications, a stand-by state will
be reached by stopping the (+) supply alone.
Tab connected
to pin 4
7
6
5
4
3
2
1
Input (Non Inverting)
Output Stage Supply
Output
Ground Or Negative Supply
Flyback Generator
Supply Voltage
Input (Inverting)
Output Stage Flyback Supply
Supply Generator Voltage
6 32
Non-Inverting 7
Input
Inverting
Input 1
+
Power
Amplifier
-
Flyback
Generator
Thermal
Protection
STV8172A
4
Ground or Negative Supply
5 Output
June 2004
Revision 1.3
Page 1

Absolute Maximum Ratings
1 Absolute Maximum Ratings
STV8172A
Symbol
Parameter
Voltage
VS Supply Voltage (pin 2) - Note 1 and Note 2
V5, V6
Flyback Peak Voltage - Note 2
V3 Voltage at Pin 3 - Note 2, Note 3 and Note 6
V1, V7
Amplifier Input Voltage - Note 2, Note 6 and Note 7
Current
I0 (1)
Output Peak Current at f = 50 to 200 Hz, t 10µs - Note 4
I0 (2)
Output Peak Current non-repetitive - Note 5
I3 Sink
Sink Current, t<1ms - Note 3
I3 Source
Source Current, t < 1ms
I3 Flyback pulse current at f=50 to 200 Hz, t10µs - Note 4
ESD Susceptibility
ESD1
Human body model (100 pF discharged through 1.5 k)
ESD2
EIAJ Standard (200 pF discharged through 0 )
Temperature
Ts Storage Temperature
Tj Junction Temperature
Value
Unit
40
75
-0.4 to (VS + 3)
- 0.4 to (VS + 2) or +40
V
V
V
V
±5 A
±2 A
2A
2A
±5 A
2
300
-40 to 150
+150
kV
V
°C
°C
Note:1. Usually the flyback voltage is slightly more than 2 x VS. This must be taken into consideration when
setting VS.
2. Versus pin 4
3. V3 is higher than VS during the first half of the flyback pulse.
4. Such repetitive output peak currents are usually observed just before and after the flyback pulse.
5. This non-repetitive output peak current can be observed, for example, during the Switch-On/Switch-
Off phases. This peak current is acceptable providing the SOA is respected (Figure 8 and Figure 9).
6. All pins have a reverse diode towards pin 4, these diodes should never be forward-biased.
7. Input voltages must not exceed the lower value of either VS + 2 or 40 volts.
2 Thermal Data
Symbol
RthJC
TT
TJ
Parameter
Junction-to-Case Thermal Resistance
Temperature for Thermal Shutdown
Recommended Max. Junction Temperature
2/14
Value
3
150
120
Unit
°C/W
°C
°C
Page 2

STV8172A
3 Electrical Characteristics
Electrical Characteristics
(VS = 34 V, TAMB = 25°C, unless otherwise specified)
Symbol
Parameter
Supply
VS Operating Supply Voltage Range (V2-V4)
I2 Pin 2 Quiescent Current
I6
Input
Pin 6 Quiescent Current
I1 Input Bias Current
I7 Input Bias Current
VIR Operating Input Voltage Range
VI0
VI0/dt
Offset Voltage
Offset Drift versus Temperature
Output
I0 Operating Peak Output Current
V5L Output Saturation Voltage to pin 4
V5H Output Saturation Voltage to pin 6
Stand-by
V5STBY Output Voltage in Stand-by
Miscellaneous
G Voltage Gain
VD5-6 Diode Forward Voltage Between pins 5-6
VD3-2 Diode Forward Voltage between pins 3-2
V3SL Saturation Voltage on pin 3
V3SH Saturation Voltage to pin 2 (2nd part of flyback)
Test Conditions
Note 8
I3 = 0, I5 = 0
I3 = 0, I5 = 0, V6 =35v
V1 = 1 V, V7 = 2.2 V
V1 = 2.2 V, V7 = 1 V
0o<Tcase<125oC
I5 = 1.5 A
I5 = -1.5 A
V1 = V7 = VS = 0
See Note 9
I5 = 1.5 A
I3 = 1.5 A
I3 = 20 mA
I3 = -1.5 A
Min. Typ. Max. Unit Fig.
10 35 V
5
20 mA
1
8 19 50 mA 1
- 0.6 -1.5 µA
1
- 0.6 -1.5 µA
0 VS - 2 V
2 mV
10 µV/°C
±1.5
1 1.7
1.8 2.3
A
V
V
3
2
VS - 2
V
80 dB
1.8 2.3
V
1.6 2.2
V
0.4 1
V
2.1 2.8
V
3
8. In normal applications, the peak flyback voltage is slightly greater than 2 x (VS - V4). Therefore, (VS
- V4) = 35 V is not allowed without special circuitry.
9. Refer to Figure 4, Stand-by condition.
3/14
Page 3

Electrical Characteristics
STV8172A
Figure 1: Measurement of I1, I2 and I6
2.2V
(a): I2 and I6 measurement
(b): I1 measurement
+Vs
I2 I6
26
75
39k
STV8172A
S (a)
1 (b)
4
I1
1V
5.6k
Figure 2: Measurement of V5H
+Vs
2
7
6
V5H
2.2V
STV8172A 5
1
1V
4
- I5
4/14
Figure 3: Measurement of V3L and V5L
1V
2.2V
+Vs
26
I3 or I5
7 (b) (a)
3
STV8172A
1
4
5
V3L
V5L
(a): V5L measurement
(b): V3L measurement
Page 4
Part Number STV8172A
Manufactur ST Microelectronics
Description Vertical Deflection Booster for 3-APPTV/Monitor Applications
Total Page 14 Pages
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