三洋 型号LA7835 电路产品 用户手册说明书

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability,such as life-support systems,aircraft’s control systems,or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that exceed,even momentarily, rated values (such as maximum ratings,operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
Monolithic Linear IC
Vertical Deflection Output Circuit
with Driver for Color TV Use
Ordering number:ENN2863
LA7835
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE T okyo Bldg., 1-10, 1 Chome, Ueno, T aito-ku, TOKYO, 110-8534 JAPAN
Package Dimensions
unit:mm
3107-SIP13H
[LA7835]
SANYO : SIP13H
Overview
The LA7835 is an IC that contains the vertical deflection output circuit with a driver for small-aperture (maximum deflection current 1.8Ap-p) color/B&W TV, monitor/dis-play use and is placed in a SIP13H package. The LA7835has such features as greatly reduced number of external parts and low power dissipation. Since both DC feedback and AC feedback can be provided inside the IC, it is easy to design the vertical deflection circuit. The LA7835 can be used in conjunction with single-chip IC LA7650 (NTSC),LA7680 series (PAL/NTSC) (VIF, SIF, video, chroma, and deflection circuit) to provide all the functions required for color TV signal processing.
Features
•Low power dissipation because of on-chip pump-up cir-cuit.
• On-chip 50/60Hz vertical size control circuit.• On-chip ramp generator.• On-chip driver circuit.• Vertical output circuit.
• On-chip thermal protection circuit.• Minimum number of parts required.
Specifications
Maximum Ratings at Ta = 25˚C
˚C ˚C r
e t e m a r a P l
o b m y S s n o i t i d n o C s
g n i t a R t i n U e g a t l o v y l p p u s r e w o p r e v i r D V +1C C x a m 51V e g a t l o v y l p p u s r e w o p p u -p m u P V +7C C x
a m 03V e g a t l o v y l p p u s r e w o p t u p t u O V +21C C x
a m 2
6V t n e r r u c t u p t u o n o i t c e l f e D I F E D 5
.1+o t 5.1–o -p A n o i t a p i s s i d r e w o p e l b a w o l l A x a m d P k
n i s t a e h e t i n i f n i h t i W 8
W
e r u t a r e p m e t g n i t a r e p O r p o T 58+o t 02–e r u t a r e p m e t e g a r o t S g t s T 0
51+o t 04–e
c n a t s i s e r l a m r e h T θc
-j 4
˚C/W
0.40.5
3.4
1.15
25.6
10.0
2.4
2.0
1.2
2.0
0.8
1131.0m i n
4.5
15.4m a x
11.811.2 13.9 查询LA7835供应商
捷多邦，专业PCB打样工厂，24小时加急出货
Operating Characteristics at Ta = 25˚C, +V
CC1=12V, +V CC7=24V
Operating Supply Voltage Conditions
Recommended Operating Conditions
r
e t e m a r a P l o b m y S s
n o i t i d n o C s
g n i t a R t i n U e g a t l o v y l p p u s r e v i r D V +1C C 41o t 8V e
g a t l o v y l p p u s p u -p m u P V +7
C C 7
2o t 01V
r
e t e m a r a P l o b m y S s
n o i t i d n o C s
g n i t a R t i n U e g a t l o v y l p p u s r e v i r D V +1C C 2
1)9(V e g a t l o v y l p p u s p u -p m u P V +7C C 42V t
n e r r u c t u p t u o n o i t c e l f e D I p
-p 118
.1o t p u p
-p A r
e t e m a r a P l o b m y S s
n o i t i d n o C s
g n i t a R t i n U n i m p y t x a m t n e r r u c t n e c s e i u q y l p p u s r e w o p r e v i r D I 1C C 8.18.28.3A m e g a t l o v d l o h s e r h t t u p n i r e g g i r T V 28.21.34.3V e g a t l o v n i p l o r t n o c e z i s l a c i t r e V V 39.51.63.6V e g a t l o v t r a t s e p a h s m r o f e v a w p m a R V P M A R 7
.40
.53.5V e g a t l o v n o i t a r u t a s e g r a h c p u -p m u P V 01-8S 5.1V e g a t l o v n o i t a r u t a s e g r a h c s i d p u -p m u P V 8-7S A 9.0=I 0.3V )r e w o l (e g a t l o v n o i t a r u t a s t u p t u o n o i t c e l f e D V 01-11S A 9.0=I 2.1V )r e p p u (e g a t l o v n o i t a r u t a s t u p t u o n o i t c e l f e D V 1
1-21S A
9.0=I 2.3V t n e r r u c g n i l d I 6
1222
3A m n
i a g e g a t l o V G V O
z
H k 1=f 9
5B
d Pin Assignment and Block Diagram
Equivalent Circuit
Sample Application Circuit
Note) The values in parentheses are for a sample application where the V CC1 is 9V.
Proper Cares in Using the LA7835
Note1)If horizontal components are mixed into pin 1, causing the interlace characteristic to worsen, provide decoupling as shown above. The resistor value and capacitor value are shown as an example.
2)If oscillation occurs, connect the OSC blocking circuit as shown above.
However, if the deflection current increases, oscillation may not be blocked completely. In this case, change the application circuit as shown below.
3)In some applications, the OSC blocking capacitor across pins 9 and 11 is connected across pin 9 and GND.
4)The threshold voltage on pin 2 is +V CC11/4. Set the input trigger level so that it intersects this threshold level.
The LA7835 operates on the negative transition of the trigger pulse.
5)Connect the radiator fin to GND.。