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參數(shù)資料
| 型號： | BH6518FS |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | 4-channel PWM driver for CD and MD players |
| 中文描述： | 4通道的CD和MD PWM驅(qū)動器 |
| 文件頁數(shù)： | 7/7頁 |
| 文件大?。?/td> | 164K |
| 代理商： | BH6518FS |
BH6518FS
Optical disc ICs
7/7
!
Operation notes
(1) V
G
voltage is double of 9pin voltage. Therefore, if without voltage supply on 9pin, Charge pump do not generate V
G
.
And adjust V
M
, not to over absolute maximum rating of V
G
.
(2) In case of supply V
G
by external power supply, please remove capacitor between 31 to 32pin.
(3) Recommendable charge pump capacitance is 0.01
～
0.1
μ
F. Much more capacitance may not be effective.
(4) A thermal shutdown circuit (over temperature protection circuit) is built in to prevent the IC from thermal breakdown.
Use the IC under the allowable thermal loss of the package (0.85W). In case the IC is left running exceeding the
allowable loss, the junction temperature rises, and the thermal shutdown circuit works at the junction temperature of
175
°
C (Typ.) (the output of all the channels are brought to open status). When the junction temperature drops to
150
°
C (Typ.), the IC start operating again.
!
External characteristic curves
5.0
0
0
O
O
INPUT VOLTAGE : V
IN
(V)
Fig.4 I/O characteristics
V
DD
=
3V
V
M
=
5V
V
IN
=
0/3V, 176kHz
1.0
2.0
1.0
1.0
1.0
2.0
3.0
2.0
3.0
4.0
5.0
2.0
3.0
3.0
4.0
VG : Built-in charge pump
R
L
=
∞
+
47
μ
H
R
L
=
8
+
47
μ
H
0
0
O
O
INPUT VOLTAGE : V
IN
(V)
Fig.5 I/O characteristics during
ultralow input
V
DD
=
3V
V
M
=
5V
V
IN
=
0/3V, 176kHz
0.1
0.1
0.1
0.1
0.2
0.2
0.3
0.4
0.2
0.2
0.3
0.4
VG : Built-in charge pump
R
L
=
200
+
47
μ
H
R
L
=
8
+
47
μ
H
4
5
4.5
9
V
G
SUPPLY VOLTAGE : V
DD
=
V
M
(V)
Fig.6 Supply voltage
vs. charge-pump output
No load, no input
5.5
10
3.5
8
7
3
6
5
11
6
12
13
14
15
!
External dimensions
(Units : mm)
SSOP-A32
0.15
±
0.1
0
7
±
0
5
±
0
1
±
0
0
1
32
0.36
±
0.1
16
17
13.6
±
0.2
0.8
0.1
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|---|---|
| BH6519FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel PWM driver for CD, MD player |
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| BH6523FV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:光ディスクLSI |
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