TDA8358J Philips Semiconductors, TDA8358J Datasheet - Page 14

• Manufacturer Part Number: TDA8358J
• Description: Full bridge vertical deflection output circuit in LVDMOS with east-west amplifier
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1999 Dec 22
handbook, halfpage
Full bridge vertical deflection output circuit
in LVDMOS with east-west amplifier
Fig.5 Equivalent thermal resistance network.
R th(EW-P1)
10.5 K/W
P EW
T EW(M)
T P1(M)
T c
R th(P1-c)
2.2 K/W
P tot
T TRv(M)
MGL872
R th(TRv-P1)
P TRv(M)
5.2 K/W
14
E
Measured or known values:
The IC total power dissipation is:
P
It should be noted that the allowed IC total power
dissipation is P
The maximum (peak) temperature T
The maximum (peak) junction temperatures for the output
circuits are given by:
XAMPLE
tot
The east-west power dissipation: P
The vertical power dissipation: P
The maximum (peak) power dissipation of the most
critical transistor: P
The case temperature: T
T
= 85 + (3 + 5)
T
= 102.6 + 10.5
T
= 102.6 + 5.2
P1(peak)
j(EW)(peak)
j(TRv)(peak)
= P
EW
+ P
= T
= T
= T
V
c
tot
+ (P
= 6 + 3 = 9 W
P1(peak)
P1(peak)
= 15 W (maximum value).
5 = 128.6 C
2.2 = 102.6 C
3 = 134.1 C
EW
TRv(peak)
+ P
+ R
+ R
c
TRv(peak)
th(EW-P1)
th(TRv-P1)
= 85 C.
= 5 W
V
)
P1(peak)
= 6 W
Product specification
EW
R
P
P
TDA8358J
EW
th(P1-c)
TRv(peak)
= 3 W
is given by: