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參數(shù)資料
| 型號： | AT5659H |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 5-CH MOTOR DRIVER FOR DC/VCD PLAYER |
| 中文描述： | 5通道馬達驅(qū)動直流/ VCD播放器 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 296K |
| 代理商： | AT5659H |
AT5659
Preliminary Product Information
5-Ch Motor Driver for CD/VCD Player
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email:
service@aimtron.com.tw
5
Application Information
1. Mute
2. Thermal Shutdown
The V
REF BG
is the output voltage of the band-gap-referenced biasing circuit and acts as the input
voltage of the TSD circuit. The base-emitter voltage of the TR, Q11 is designed to turn-on at below
voltage.
V
BE
= V
REF BG
× R12 / (R11+R12) = 460mV
When the chip temperature rises up to 175°C, then the turn-on voltage of the Q11 would drop down
to 460mV.(Hysteresis: 25
℃
), the Q11 would turn on so the output circuit will be muted.
MUTE
High(>2.0V)
Low(<0.5V)
Open
Mute circuit
Turn-OFF
Turn-ON
Turn-ON
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