TDA4867J Philips Semiconductors, TDA4867J Datasheet - Page 11

• Manufacturer Part Number: TDA4867J
• Description: Full bridge current driven vertical deflection booster
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Example
Table 1 Values given from application diagram Fig.6
Note
1. Use heatsink compound.
Calculation formulae for supply voltage:
V
V
for V
for V
where:
Calculation formulae for power consumption:
where:
Calculation formulae for flyback time (t
2003 Feb 05
P
P
P
I
L
R
R
R
R
V
T
T
R
R
defl
b1
b2
IC
tot
defl
deflcoil
amb
deflcoil
U’
f
P
P
P
deflcoil
m
p
ref
FB
th(j-mb)
th(mb-amb)
Full bridge current driven vertical
deflection booster
SYMBOL
v
IC
tot
defl
= V
= V
L
= vertical deflection frequency.
b1
b2
=
=
=
= L
= power dissipation of the TDA4867J
= total power dissipation
P
= power dissipation of the deflection coil.
> V
> V
V
sat(VP-OUTA)
sat(OUTA-GND)
1
-- -
3
tot
P
deflcoil
b2
b1
–
(1)
I
-------- -
R
P
defl
: V
: V
2
defl
deflcoil
P
P
+
5.4 [= 4.2 + 7% + R( )]
2
= V
= V
V
+ R
P
+
+ R
I
b1
b2
defl
R
deflcoil
0.02 A
m
deflcoil
1 (+1%)
VALUE
f
0.71
220
5.2
3.4
v
40
50
75
4
6
I
2
defl
I
+
defl
I
0.1 W
defl
+ U’
U’
L
flb
+
+ R
L
):
V
+ R
FB
t
flb
m
A
mH
k
V
K/W
K/W
C
C
m
I
I
FB
-------------------------------- -
R
UNIT
defl
I
deflcoil
defl
L
+ V
deflcoil
+ V
sat(OUTB-GND)
+
sat(VP-OUTB)
R
11
m
Table 2 Calculated values
Note
1. T
V
t
P
P
P
R
T
flb
ln
j(max)
P
tot
defl
IC
SYMBOL
th(tot)
V
---------------------------------------------------------------------
V
j(max)
FB
FB
(1)
+
–
= P
R
R
deflcoil
deflcoil
IC
[R
+
+
th(j-mb)
R
R
m
m
VALUE
+ R
8.5
3.4
0.9
2.5
I
I
200
10
75
defl
defl
th(mb-amb)
Preliminary specification
TDA4867J
] + T
V
W
W
W
K/W
amb
C
s
.
UNIT