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參數(shù)資料
| 型號： | AN8787NSB |
| 廠商： | PANASONIC CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 4-channel linear driver IC for CD/CD-ROM drive |
| 中文描述： | DISK DRIVE MOTOR CONTROLLER, PDSO28 |
| 封裝： | 0.400 INCH, PLASTIC, HSOP-28 |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 61K |
| 代理商： | AN8787NSB |
ICs for Compact Disc/CD-ROM Player
AN8787NSB
5
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Thermal protection circuit
Thermal protection operating
temperature
T
THD
160
°
C
Thermal protection hysteresis
width
T
THD
45
°
C
Reset circuit
Voltage detection reset
hysteresis width
V
HYS
0.2
V
I
Electrical Characteristics at SV
CC
=
V
CC1
=
V
CC2
=
12 V, V
CC3
=
5 V, R
L
=
8
, V
PC
=
5 V, V
STB
=
5 V,
T
a
=
25
°
C (continued)
Parameter
Symbol
Conditions
Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
I
Usage Notes
1. SV
CC
must be used in the highest potential. Otherwise it possibly causes an operation error.
2. Ch. 3 and ch. 4 are current feedback type drivers. Do not apply voltage directly to PVC3 and PVC4, but apply from
PVC5 through the current feedback detection resistors RS3 and RS4 , respectively. And commonly connect S3 pin
to PVC3 pin and S4 pin to PVC4 pin.
At this time, as an output current flows on the detection resistors RS3 and RS4, use a resistor which has a sufficient
allowable power dissipation.
To set gain for ch. 3 and ch. 4, use the following formula:
|
V
IN3(4)
V
REF
|×
2.2 k
=
R
S3(4)
×
I
OUT3(4)
R
3(4)
+
500
(I
OUT3
and I
OUT4
are the load current for ch. 3 and ch. 4, respectively.)
3. Power cut operation
PC
Standby
Low (open)
High
Low
High (open)
Ch. 1, Ch. 3, Ch. 4
Mute
Active
Standby
Active
or
Mute
Ch. 2
Active
Mute
(exclusive for L0)
4. Do not use ch. 2 (exclusive for loading) at more than 6 V of V
CC2
when ch. 2 load is 20
and less.
5. Appropriate care should be taken on the characteristics. When changing an external circuit constant on actual use,
secure an appropriate margin in consideration of characteristic fluctuation of external parts and our ICs including
transient characteristics as well as static ones.
6. Avoid the short-circuits between output pin and V
CC
, output pin and GND (line-to-supply and line-to-ground), and
between output pins (short-circuit due to load). Otherwise, the IC is likely to emit smoke and break down.
7. An appropriate prior study should be done for use of dip soldering.
RVC5
RS3
RS4
S3
S4
PVC3
PVC4
Min
Typ
Max
Unit
Reset circuit
Reset operation release supply
voltage
V
RST
5
V
V
REF
detection voltage
V
R
1.35
V
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