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參數(shù)資料
| 型號： | BA6898 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | 4-channel BTL driver for CD players |
| 中文描述： | 4通道的CD播放器橋接驅(qū)動程序 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大?。?/td> | 189K |
| 代理商： | BA6898 |
680
Optical disc ICs
BA6898S/BA6898FP
Operation notes (pin Nos. are those for the BA6898S)
(1)
Relationship between mute and reset output
Regulator voltage drop
If the regulator voltage drops to 4.0V (Typ.) or below, the reset output turns low and the
mute turns on. If the voltage then rises again to 4.2V (Typ.), the reset output turns high
and the mute turns off.
If the bias pin (pin 3) voltage lowers to 1.4V (Typ.) or below, the mute turns on and the
reset output turns low. For normal operations, have the voltage at 1.6V or greater.
When the chip temperature reaches 175 C (Typ.), the mute turns on and the reset output
turns low. If the chip temperature then drops below 150 C (Typ.), then the mute turns off
and the reset output turns high.
If the mute pin (pin 15) voltage is open or lowers to 0.5V or below, the mute turns on but
the reset output does not change.
. . . . .
Bias voltage drop
. . . . . . . . . .
Thermal shutdown
. . . . . . . . .
Mute (pin 15)
. . . . . . . . . . . . .
(2)
bias pin drops, or if the regulator voltage drops, the mute
is activated; however, in these situations, only the drivers
are muted. Also, the output pin voltage becomes the in-
ternal bias voltage (approx. (V
CC
(3)
Connect a bypass capacitor (approx. 0.1
μ
F) be-
tween the bases of the power supply pins of this IC.
(4)
Even though pins 16 and 32 are connected to
ground within the package, be sure to also connect them
to a ground externally as well.
If the voltage of the thermal shutdown, mute ON, or
V
F
) / 2).
(5)
output pin (pin 14) and GND also serves to prevent os-
cillation, so be sure to use a capacitor with excellent ther-
mal characteristics.
(6)
If the regulator is not used, short the regulator out-
put pin (pin 14) to V
CC
and have the pin for the externally
connected transistor base (pin 13) open.
(7)
Of the ground pins, only pin 18 is not connected to
the IC substrate. Therefore, design the PC board pattern
so that the potential of GND pin 18 does not go below the
substrate GND (including transient conditions).
The capacitor connected between the regulator
Electrical characteristic curves
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| BA6970 | 2-phase motor driver for VCR cylinder motors |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA6898FP | 制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel BTL driver for CD players |
| BA6898S | 制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel BTL driver for CD players |
| BA6899AS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo/Spindle Motor Controller/Driver |
| BA6901F | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-Phase half-wave motor pre driver for fan motor |
| BA6901F_1 | 制造商:ROHM 制造商全稱:Rohm 功能描述:2-Phase Half-Wave Pre Driver for Fan Motor |
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