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Electrical Characteristics - Sharp 28JW-73H Service Manual

Ga-20 chassis, pal i system colour television
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-:+
679 ,&
-VCC
1kΩ
Input signal
1kΩ
* Deflection yoke characteristics: R = 5.5Ω, L = 7mH
f
= 50Hz
vert
5

ELECTRICAL CHARACTERISTICS

Tamb = 25°C unless otherwise specified, Vcc = ±12V, f
Symbol
+Vcc
Positive supply range
-Vcc
Negative supply range
Maximum recommended difference
∆Vcc
between +Vcc and
Vcc
Low Vcc detection
start
Iq
Quiescent supply current
Maximum recommended vertical
Iy
yoke current
I
, I
Amplifier Input bias current
13
12
V
Output Offset voltage
OS
SVR
Supply voltage rejection
Flyback detection threshold
Fly
thr
(positive slope)
Flyback detection threshold
Fly
thf
(negative slope)
Integrated circuit
Pd
Dissipated power
Fsw
Switching frequency
Fsw - op
Switching frequency operative range
R
Frequency controller resistor range
freq
Note: 1
Input voltage = 0, measured after the filter (e.g. accross the 470 nF filter capacitor)
Note: 2
Supply rejection of the positive or negative power supply. Vcc ripple =1Vpp, f=100Hz, measured on the sense
resistor.
Note: 3
Power dissipated in the circuit in the case of the application from Figure 1 and the current in the deflection
yoke adjusted to 2.5App. The corresponding power dissipated in the vertical deflection yoke is 2.8W.
100nF
100nF
+VCC
-VCC
15
VREG
Flyback
8
Vref
detection
100nF
IN+
+
13
IN -
Modulator
_
12
EA out
14
10kΩ
9
10
11
SGND
FEEDCAP
470pF
4.7nF
Parameter
Vcc
Input voltage = 0
Note 1
Note 2
V(14)
V(14)
Note 3
R
Pin 10
+VCC
1000µF
+VCC power
16
STV9380
TDA9380
CFLY+
Flyback
5
generator
6
CFLY-
BOOT
7
Output
OUT
4
drive
1mH
150Ω
Pins 1,2,3,18,19,20
17
-VCC power
FREQ
-VCC
10kΩ
100nF
1000µF
-VCC
(refer to Figure 1 on page 3)
=50Hz
vert
Test Conditions
Min.
+10
-18
-50
= 10kΩ
120
freq
100
7

CFLYBACK
100µF
Cboot
220nF
Deflect.
200Ω
470nF
150Ω
Yoke*
560pF
Sense
0.5Ω
resistor
Typ.
Max.
Units
+18
V
-10
V
±4
V
±6.5
V
14
mA
±1.25
A
µ
-0.1
A
+50
mV
82
dB
1.5
V
0.5
V
1.1
W
140
160
kHz
200
kHz
10
14
k

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