參數(shù)資料
型號: AN8819
廠商: Panasonic Corporation
元件分類: DC/DC變換器
英文描述: 4Ch. Linear Driver IC DC-DC Converter Control for CD
中文描述: 4通道。線性驅(qū)動器IC的DC - DC轉(zhuǎn)換器控制的CD
文件頁數(shù): 10/11頁
文件大小: 116K
代理商: AN8819
AN8819NFB
ICs for CD/CD-ROM Player
I
Characteristic Curve
2,000
1,800
1,600
1,400
1,200
1,000
800
600
400
200
0
Ambient Temperature Ta (C)
P
D
25
0
75
125
Glass epoxy board
(50mm
×
50mm
×
0.8mm)
Rthj– a = 70C/W
P
D
=1786mW (25C)
150
100
50
880
Unit
Rthj– a = 142C/W
P
D
= 880mW (25C)
P
D
–Ta
I
Description for use
Driver Portion
Set the driver gain calculated by the equation shown below, except for SP driver. For SP driver, the gain must be set to the
calculated value + 6dB.
G = 1.0k
+ R
The total channel driver supply is Pin33.
Set the driver supply as necessary, since the output amplitude increases with increase of the supply voltage. However, also
increase the voltage of DRV
CC
pin (Pin14) at the same time.
As protection functions, V
REF
detection and heat protection circuits are incorporated.
V
REF
detector sets the driver output to high impedance, when the voltage applied to V
REF
is 0.75V or less.
For the heat protective circuit, the set temperature for operation is approx. 150C and the release temperature is approx. 120C.
FO and TR drivers have the built-in function for making short-circuit between either loading end and GND by LDON (Pin18),
and for SP and TV drivers by PC (Pin20) and TRVSTOP (Pin22).
LDON : Output GND at L
PC : Output GND at H
TRVSTOP : Output GND at H
R : External input resistance
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