TDA4867 Philips Semiconductors, TDA4867 Datasheet - Page 11
TDA4867
Manufacturer Part Number
TDA4867
Description
Full bridge current driven vertical deflection booster
Manufacturer
Philips Semiconductors
Datasheet
1.TDA4867.pdf
(14 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA4867J
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Company:
Part Number:
TDA4867J/V1
Manufacturer:
PHILIPS
Quantity:
220
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
FB
U’
f
P
P
P
SYMBOL
deflcoil
m
p
ref
th(j-mb)
th(mb-amb)
Full bridge current driven vertical
deflection booster
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
0.71
f
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
th(tot)
SYMBOL
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