CMD4510 Datasheet, PDF (5/7 Pages) Ceramate Technical – Motor Driver for Portable DVD Player with DC-DC Step Down Converter

CMD4510
Motor Driver for Portable DVD Player with DC-DC Step Down Converter
POWER DISSIPATION CURVE:
APPLICATION INFORMATION
1)The built-in thermal shutdown circuit mutes the output current of 4-channel BTL
when the chip temperature reaches 175°C (typ.). The hysteresis is set to 25°C (typ.), so the
circuit will start up again when the chip temperature falling to 150°C(typ.).
2) In case mute pin voltage is under 0.5V or NC, output current is muted (except two
DC-DC converter). Mute pin voltage should be more than 2.0V for normal application.
3) In case EN pin voltage is under 0.5V or NC, the converter circuit will stop operation.
EN pin voltage should be more than 2.0V for normal application.
4) Bias pin (pin 34) should be pulled up to more than 1.2V. In case the bias pin voltage
is pulled down below 0.9V (typ.),the output current of 4-channel BTL is muted.
5) Heat dissipation fins are attached to the GND on the inside of the package. Make
sure to connect them to the external GND.
6)DC-DC Step down converter: Please refer to application note.
7)Truth table of Mute,EN1,EN2.
Truth table (Ο: active
Mute
EN1
H
--
--
H
--
--
L
L
×:inactive
EN2
--
--
H
L
--:don’t care)
Motor channel
Ο
--
--
×
DC-DC ctrl 1
--
Ο
--
×
DC-DC ctrl 2
--
--
Ο
×
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
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Page 5 of 7
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Http: www.ceramate.com.tw
Rev 1.0 Mar. 28, 2006