TDA4865J Datasheet, PDF (9/18 Pages) NXP Semiconductors – eflection boosters for use in vertical deflection systems for frame frequencies up to 200 Hz.

NXP Semiconductors
TDA4865J; TDA4865AJ
Vertical deflection booster
THERMAL
PROTECTION
TDA4865J
DIFFERENTIAL
INPUT
STAGE
VERTICAL
OUTPUT
FLYBACK
GENERATOR
REFERENCE
CIRCUIT
7
6
INP INN
5
VOUT
4
3
GND V_P2
from
deflection controller
R3
1.8 kΩ
R2
1.8 kΩ
RS1 ^CS1
CS2(1)
RS2
5.6 Ω
RP
270 Ω
5.6 Ω 100
nF
deflection
coil
470 µF
R1
0.5 Ω
(1 W)
V_N
−8 V
2
1
V_FB
V_P1
D1
BYV27
470 µF
4.3 Ω
470 µF
V_F
+50 V
V_P
+9 V
001aad303
Remark: the heat sink of the IC must be isolated against ground of the application (it is connected to pin GND).
(1) With C_S2 (typical value between 47 nF and 150 nF) the flyback time and the noise behavior can be optimized.
Fig 7. Application diagram with TDA4865J
TDA4865J_TDA4865AJ_2
Product data sheet
Rev. 02 — 3 November 2006
© NXP B.V. 2006. All rights reserved.
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