AT5659 Datasheet, PDF (5/10 Pages) List of Unclassifed Manufacturers – 5-CH MOTOR DRIVER FOR DC/VCD PLAYER

Application Information
1. Mute
AT5659
Preliminary Product Information
5-Ch Motor Driver for CD/VCD Player
MUTE
High(>2.0V)
Low(<0.5V)
Open
•
2. Thermal Shutdown
Mute circuit
Turn-OFF
Turn-ON
Turn-ON
• 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.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
WWW: http://www.aimtron.com.tw
Fax: [phone]
Email: [e-mail]
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