SGS Thomson Microelectronics STV9380 Datasheet
STV9380
CLASS-D VERTICAL DEFLECTION AMPLIFIER FOR TV AND
MONITOR APPLICATION
TARGET SPECIFICATION
FEATURES
■ High Efficiency Power Amplifier
■ No Heatsink
■ Split Supply
■ Flyback Generator
■ Output Current up to 2.5 APP
■ Flyback Voltage up to 65V
■ Suitable for DC Coupling Application
PDIP20 (14+3+3)
ORDER CODE: STV9380
DESCRIPTION
Designed for monitors and TVs, the STV9380 is a
class-D vertical deflection booster assembled in
PDIP20 Package.
It operates with supplies up to +/- 16V , provides
up to 2.5 App output current to drive the yoke. Flyback voltage is close to 65V.
PIN CO NNECTIO N
-V
-V
-V
OUT
CFL Y +
CFLY -
BOOT
VREG
FEEDCAP
FREQ
CC
CC
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
-V
CC
-V
CC
-V
CC
-V
CC
+ V
CC
+V
CC
EAout
IN+
IN-
SGND
POW
POW
Version 1.1
May 2000 1/7
This is preliminary information on a new product now in development. Details are subject to change without notice.
1
STV9380
1 - PIN FUNCTIONS
Pin
Number
1-V
2-V
3-V
Name Function
CC
CC
CC
Negative supply
Negative supply
Negative supply
4 OUT PWM Output
5 CFLY+ Flyback capacitor
6 CFLY- Flyback capacitor
7 BOOT Bootstrap capacitor
8 VREG Internal voltage regulator
9 FEEDCAP Feed-back integrated capacitor
10 FREQ Frequency setting resistor
11 SGND Signal Ground
12 IN- Error amplifier inverting input
13 IN+ Error amplifier non-inverting input
14 EA out Error amplifier output
15 +V
16 +V
CC
CC
POW
Positive supply
Positive Power supply
17 -VccPOW Negative Power supply
18 -V
19 -V
20 -V
CC
CC
CC
Negative supply
Negative supply
Negative supply
2/7
2
+VCC
Figure 1. Tes t an d A pplication Ci rc ui t
-VCC
1kΩ
Input signal
1kΩ
100nF
EA out
10kΩ
100nF
VREG
IN+
IN -
8
13
12
14
SGND
15
Vref
+
_
11
FEEDCAP
+VCC
4.7nF
Flyback
detection
Modulator
9
16
Flyback
generator
Output
drive
Pins 1,2,3,18,19,20
10
FREQ
10kΩ
-VCC
100nF 470µF
470µF
+VCC power
STV9 380
TDA9380
17
-VCC power
5
6
7
4
150Ω
CFLY+
CFLY-
BOOT
OUT
CFLYBACK
100µF
Cboot
100nF
1mH
470nF
560pF
150Ω
Deflect.
Yoke
200
0.5Ω
Ω
-VCC
3/7
2
STV9380
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