Sanyo LA7845 Specifications
Overview
The LA7845 is a vertical deflection output IC for highresolution television and CRT display systems that use a
bus controller system signal processing IC. It can directly
drive the deflection yoke (including the required DC
component) from the bus controller system signal
processing IC's sawtooth waveform output. Connecting
the LA7845 and a Sanyo TV bus control system signal
processing IC in the LA7615 series allows all functions of
a color television signal system to be processed by the bus
system. Since the LA7845 has a maximum deflection
current of 2.2 Ap-p, it is optimal for use in large aperture
products, and is capable of driving 33 to 37 inch class
monitors.
Features
• Low power dissipation due to the provision of a built-in
pump circuit
• Vertical output circuit
• On-chip thermal protection circuit
• Good crossover characteristics
• Supports DC coupling
Package Dimensions
unit: mm
3075-SIP7H
Ordering number : EN4713
93098HA (OT) / 51094TH (OT) B8-0786 No. 4713-1/4
LA7845
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Vertical Deflection Output Circuit
CMOS LSI
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.
Specifications
Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC
6 max 40 V
Output block supply voltage V
CC
3 max 85 V
Deflection output current I2 max –1.5 to +1.5 Ap-o
Thermal resistance
θj-c 4.0 °C/W
Allowable power dissipation Pd max With an arbitrarily large heat sink 11 W
Operating temperature Topr –20 to +85 °C
Storage temperature Tstg –40 to +150 °C
[LA7845]
SANYO: SIP7H
Operating Characteristics at Ta = 25°C, VCC6 = 24 V
Block Diagram
No. 4713-2/4
LA7845
Parameter Symbol Conditions
Ratings
Unit
min typ max
Pump circuit charge saturation voltage V
S
7-1 I7 = 20 mA 1.8 V
Pump circuit discharge
V
S
6-7 I7 = –1.1 A 3.2 V
saturation voltage
Deflection output saturation voltage
V
S
2-1 I2 = 1.1 A 1.5 V
(lower)
Deflection output saturation voltage
V
S
3-2 I2 = –1.1. A 3.5 V
(upper)
Idling current I
DL
35 70 mA
Midpoint voltage V
MID
11.0 12.0 13.0 V
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
CC
6 24 V
Operating supply voltage range V
CC
6 op 10 to 38 V
Recommended deflection output current I2 p-p up to 2.2 Ap-p
Operating Conditions at Ta = 25°C
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